WO2012132915A1 - 変速装置 - Google Patents
変速装置 Download PDFInfo
- Publication number
- WO2012132915A1 WO2012132915A1 PCT/JP2012/056633 JP2012056633W WO2012132915A1 WO 2012132915 A1 WO2012132915 A1 WO 2012132915A1 JP 2012056633 W JP2012056633 W JP 2012056633W WO 2012132915 A1 WO2012132915 A1 WO 2012132915A1
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- WO
- WIPO (PCT)
- Prior art keywords
- clutch
- clutch drum
- drum
- side wall
- axial direction
- Prior art date
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Classifications
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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
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
- F16D13/68—Attachments of plates or lamellae to their supports
- F16D13/683—Attachments of plates or lamellae to their supports for clutches with multiple lamellae
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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
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
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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
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
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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
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
-
- 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0287—Hydraulic circuits combining clutch actuation and other hydraulic systems
- F16D2048/029—Hydraulic circuits combining clutch actuation with clutch lubrication or cooling
Definitions
- the present invention relates to a transmission including a first clutch and a second clutch disposed on the inner peripheral side of the first clutch so as to overlap the first clutch when viewed from the radial direction.
- this type of transmission includes a first clutch drum that holds a plurality of clutch plates and a first clutch drum that is splined to the inner peripheral surface of the first clutch drum and moves in the axial direction to press the clutch plate.
- a first clutch having a first clutch piston, a first cancel plate defining a cancel oil chamber for canceling centrifugal hydraulic pressure together with the first clutch piston, a second clutch drum holding a plurality of clutch plates,
- a second clutch piston that is spline-fitted to the inner peripheral surface of the two-clutch drum and moves in the axial direction to press the clutch plate, and a cancel oil chamber for canceling centrifugal hydraulic pressure together with the second clutch piston are defined.
- Those comprising a second clutch disposed on the inner peripheral side of the first clutch has been proposed (e.g., see Patent Document 1).
- the second clutch drum of the transmission includes a cylindrical portion that holds the clutch plate and supports the first cancel plate in the axial direction, and a drum portion that supports the cylindrical portion in the radial direction.
- the cylindrical portion is a snap ring. To be locked to the drum portion.
- the transmission according to the present invention includes a first clutch and a second clutch disposed on the inner peripheral side of the first clutch so as to overlap the first clutch when viewed from the radial direction.
- the main purpose is to reduce the size of the apparatus while suppressing deformation of the drum.
- the transmission of the present invention employs the following means in order to achieve the main object described above.
- the transmission of the present invention is in a transmission comprising: a first clutch; and a second clutch disposed on the inner peripheral side of the first clutch so as to overlap the first clutch when viewed from the radial direction,
- the first clutch includes a first clutch drum, a first clutch piston movable in an axial direction by hydraulic pressure supplied to a first engagement side oil chamber on an inner peripheral side of the first clutch drum, and the first clutch A first cancel plate defining a first cancel oil chamber for canceling the centrifugal hydraulic pressure together with the clutch piston;
- the first cancel plate is fastened between the first clutch drum and the second clutch drum of the second clutch.
- the first cancel plate that defines the first cancel oil chamber of the first clutch is fastened between the first clutch drum and the second clutch drum.
- the first cancel plate presses the second clutch drum by the centrifugal hydraulic pressure generated in the first cancel oil chamber of the first clutch, the fulcrum of the torsional moment acting on the second clutch drum (the second clutch drum and the second clutch drum).
- the second clutch drum by suppressing the application of a large torsional moment to the second clutch drum by bringing the force point (the portion where the second clutch drum supports the first cancel plate) close to each other. Can be suppressed.
- the apparatus can be made compact. Furthermore, it is necessary to provide a seal structure for suppressing leakage of oil from the first cancel oil chamber to the first cancel plate by fastening the first cancel plate between the first clutch drum and the second clutch drum. Disappears.
- the first clutch drum may include a first outer cylinder portion and a first side wall portion extending radially inward from the first outer cylinder portion, and the second clutch drum includes a second outer cylinder portion.
- a cylindrical portion, and a second side wall portion that extends radially inward from the second outer cylindrical portion and abuts against an inner peripheral portion of the first cancel plate, the inner periphery of the first cancel plate And the second side wall portion of the second clutch drum may be fastened to the first clutch drum.
- the second clutch includes a second clutch piston that is movable in the axial direction by the hydraulic pressure supplied to the second engagement side oil chamber on the inner peripheral side of the second clutch drum, and the second clutch piston. It may have a 2nd cancellation plate which defines the 2nd cancellation oil room for canceling centrifugal oil pressure.
- annular fixing portion may be extended from the first side wall portion of the first clutch drum, and an alignment portion extending in the axial direction may be formed on the inner peripheral side of the fixing portion.
- the first cancel plate and the second clutch drum may be fitted to the alignment portion of the fixed portion and fastened to the fixed portion.
- a 1st clutch drum, a 1st cancellation plate, and a 2nd clutch drum can be fastened easily.
- the first cancel plate and the second clutch drum can be easily aligned by fitting the first cancel plate and the second clutch drum to the aligning portion extending in the axial direction from the fixed portion. It becomes.
- the first clutch drum may include an inner cylinder portion extending in an axial direction from an inner peripheral portion of the first side wall portion, and the first clutch piston is formed by the fixing portion of the first clutch drum.
- the first engagement side oil chamber is defined together with the first outer cylinder portion, the first side wall portion, and the fixing portion of the first clutch drum while being slidably supported in the axial direction.
- the second clutch drum may support the first cancel plate in the axial direction, and the second clutch piston is slidable in the axial direction by the inner cylinder portion of the first clutch drum. And is formed so as to be in sliding contact with the inner peripheral surface of the fixed portion of the first clutch drum, and the second portion together with the inner cylindrical portion, the first side wall portion, and the fixed portion of the first clutch drum.
- Engagement side oil chamber It may be. Accordingly, it is possible to easily configure the first and second clutches using the fixed portion extending from the first side wall portion of the first clutch drum.
- the first cancel plate and the second clutch drum may be fastened to the fixed portion of the first clutch drum by a rivet, and the first clutch drum is fixed to the fixed portion of the first clutch drum.
- a rivet hole may be formed so that the inner diameter decreases from the outer side toward the first cancel plate and the second clutch drum.
- a rivet hole is formed in the fixed portion of the first clutch drum so that the inner diameter decreases from the outside of the first clutch drum toward the first cancel plate and the second clutch drum, so that the rivet is moved to the first clutch drum. If caulking is performed from the outside of the drum, the rivet can be sufficiently filled with the rivet hole, and the rivet can be more firmly fixed to the first clutch drum.
- FIG. 4 is an enlarged cross-sectional view showing the vicinity of a second oil passage 302c formed in the first side wall portion 302 of the clutch drum 30.
- FIG. 4 is an enlarged cross-sectional view showing a contact portion between a sleeve 52 and a step portion 303d of an inner cylinder portion 303 of the clutch drum 30.
- FIG. 4 is an enlarged view of a main part showing an end portion of a sleeve 52.
- FIG. 3 is an enlarged cross-sectional view showing the vicinity of a fixing portion 304 of the clutch drum 30.
- FIG. 1 is an enlarged sectional view showing a main part of an automatic transmission 20 according to an embodiment of the present invention.
- the automatic transmission 20 according to the embodiment is configured as a stepped transmission and is mounted on a vehicle.
- the input shaft 21 and the power from the input shaft 21 to an output shaft (not shown) are used. It includes clutches C1 and C2 for changing the transmission path, a plurality of other clutches and brakes (not shown), a planetary gear mechanism 50, and the like.
- the clutches C1 and C2, a plurality of other clutches and brakes, the planetary gear mechanism 50, and the like are accommodated in a transmission case (not shown).
- the input shaft 21 of the automatic transmission 20 is connected to the engine crankshaft via a torque converter or the like, and the output shaft is connected to driving wheels via a differential mechanism (differential gear) or the like (both Not shown).
- the clutch C1 is configured as a multi-plate friction hydraulic clutch, and is a clutch drum 30 that is rotatably supported around the input shaft 21 via a bearing 51, and a clutch fixed to, for example, a ring gear of the planetary gear mechanism 50.
- a clutch piston 35 that defines the first engagement side oil chamber 34 together with the clutch drum 30, and a centrifugal force generated in the first engagement side oil chamber 34.
- a cancel plate 36 defining a first cancel oil chamber 37 for canceling the pressure with clutch piston 35, a return spring 38 disposed between the clutch piston 35 and the cancel plate 36.
- the clutch drum 30 includes a first outer cylinder part 301 that supports the clutch plate 32, a first side wall part 302 that extends radially inward from one end of the first outer cylinder part 301, and an inner part of the first side wall part 302. It is comprised from the inner cylinder part 303 extended in the axial direction from the peripheral part.
- a sleeve 52 is press-fitted (fitted) into the inner cylinder portion 303 of the clutch drum 30 so as to be integrally rotatable.
- the sleeve 52 is integrated with, for example, a transmission case and supports the input shaft 21 rotatably. (Fixed shaft) 600 is rotatably supported.
- the clutch drum 30 is rotatable about the input shaft 21.
- One end surface (the left side in the drawing) of the sleeve 52 abuts against the inner surface of the step portion 303 d formed in the inner cylinder portion 303, thereby positioning in the axial direction.
- the saddle clutch C2 is configured as a multi-plate friction hydraulic clutch, and is disposed inside the clutch C1 so as to overlap the clutch C1 when viewed from the radial direction.
- the clutch C2 abuts (supports in the axial direction) an inner peripheral portion extending in the radial direction of the cancel plate 36 biased to the left in the drawing by the return spring 38 and is fastened to the clutch drum 30 together with the cancel plate 36.
- the clutch drum 40 includes a second outer cylinder portion 401 that supports the clutch plate 42, and a second side wall portion 402 that extends radially inward from one end of the second outer cylinder portion 401.
- An annular fixing portion 304 extends inward in the axial direction from a substantially central portion in the radial direction of the first side wall portion 302 of the clutch drum 30 of the clutch C1, and from an inner peripheral end of the fixing portion 304, An annular aligning portion 305 is further extended inward in the axial direction.
- the cancel plate 36 of the clutch C1 includes an outer peripheral portion 361 that is in sliding contact with an inner peripheral portion of the clutch piston 35 via a seal member, a connecting portion 362 that extends in the axial direction from the outer peripheral portion 361, and a connecting portion 362. And an inner peripheral portion 363 extending inward in the radial direction.
- one end surface of the inner peripheral portion 363 abuts on an end surface on the axially inner side of the fixing portion 304 of the clutch drum 30, and the other end surface is in contact with the second sidewall portion 402 of the clutch drum 40 of the clutch C2.
- the clutch drum 40 is fitted to the outer peripheral surface of the aligning portion 305 extending from the fixed portion 304 together with the second side wall portion 402 of the clutch drum 40.
- FIG. 2 is a front view of the clutch drum 30 as viewed from the right side in FIG. 1, and FIG. 3 is an enlarged cross-sectional view showing a main part of the fixing portion 304.
- a plurality of rivet holes 306 extending inward in the axial direction from the end surface of the first side wall portion 302 of the clutch drum 30 are formed in the fixing portion 304 of the clutch drum 30.
- the plurality of rivet holes 306 include a first hole 306a extending inward in the axial direction from the end surface of the first side wall 302, and a first hole extending from the first hole 306a toward the inner side in the axial direction so that the inner diameter gradually decreases.
- the second hole portion 306b and the third hole portion 306c extending from the second hole portion 306b toward the inner side in the axial direction so that the inner diameter gradually decreases.
- a plurality of cancel plates 36 of the clutch C1 communicate with the third hole portions 306c of the rivet holes 306 of the fixing portion 304 when the inner peripheral portion 363 of the cancel plate 36 is fitted to the aligning portion 305.
- Rivet holes 363a are formed, and the second side wall portion 402 of the clutch drum 40 of the clutch C2 is formed on the cancel plate 36 when the inner peripheral portion of the second side wall portion 402 is fitted to the aligning portion 305.
- a plurality of rivet holes 402a are formed so as to communicate with the rivet holes 363a.
- the rivet 53 is inserted into the rivet holes 306, 363a, and 402a, and the rivet 53 is crimped from the outside in the axial direction of the clutch drum 30, so that the cancel plate 36 and the second side wall portion 402 of the clutch drum 40 are connected. Fastened to the fixing portion 304 of the clutch drum 30. Thereby, the clutch drum 30, the cancel plate 36, and the clutch drum 40 can be easily fastened, and the cancel plate 36 is supported in the axial direction by the second side wall portion 402 of the clutch drum 40 with which the inner peripheral portion 363 abuts.
- the clutch drum 30, the cancel plate 36, and the clutch drum 40 may be fastened with bolts and nuts.
- the clutch piston 35 of the clutch C1 is slidably supported in the axial direction by the fixed portion 304 of the clutch drum 30 via the seal member, and is also provided in the first outer cylinder portion 301 of the clutch drum 30 via the seal member. Make sliding contact with the peripheral surface. Accordingly, the clutch piston 35 defines the first engagement side oil chamber 34 together with the first outer cylinder portion 301, the first side wall portion 302, and the fixing portion 304 of the clutch drum 30. Further, the clutch piston 45 of the clutch C2 is supported by the inner cylinder portion 303 of the clutch drum 30 through the seal member so as to be slidable in the axial direction, and the inner portion of the fixed portion 304 of the clutch drum 30 is interposed through the seal member. Make sliding contact with the peripheral surface.
- the clutch piston 45 defines the second engagement side oil chamber 44 together with the inner cylinder portion 303, the first side wall portion 302, and the fixing portion 304 of the clutch drum 30.
- the fixing portion 304 formed on the first side wall portion 302 of the clutch drum 30 the clutches C1 and C2 can be easily configured.
- the fixing member 600 has supply passages 31a and 31b connected to a hydraulic control device (not shown) through an oil passage (not shown) formed on the input shaft 21 and is mounted on the automatic transmission 20.
- a supply path 31c is formed to which drained hydraulic oil is supplied from a lubricating hydraulic circuit (not shown) that supplies lubricating oil to the lubrication target such as the planetary gear mechanism 50.
- the sleeve 52 press-fitted into the clutch drum 30 of the clutch C1 is formed with an oil hole 52a communicating with the supply path 31a formed in the fixing member 600 and an oil hole 52b communicating with the supply path 31b.
- a relay oil passage 303 a that communicates with the oil hole 52 a of the sleeve 52 and a relay oil passage 303 b that communicates with the oil hole 52 b are formed in the inner cylinder portion 303 of the drum 30.
- the relay oil passage 303 b communicates with the second engagement side oil chamber 44.
- a plurality of (four in the embodiment) first oil passages 302 a extending radially and radially are formed in the first side wall portion 302 of the clutch drum 30.
- the plurality of first oil passages 302 a communicate with the relay oil passage 303 a formed in the inner cylindrical portion 303 on the inner peripheral side and extend in the axial direction inside the first side wall portion 302 on the outer peripheral side of the fixed portion 304.
- the first engagement side oil chamber 34 communicates with the oil passage 302b.
- the hydraulic control device and the first link are connected via the supply passage 31a of the fixing member 600, the relay oil passage 303a of the inner cylinder portion 303 of the clutch drum 30, the first oil passage 302a and the oil passage 302b of the first side wall portion 302.
- the hydraulic control device and the second engagement side oil chamber 44 are connected to each other via the supply passage 31b of the fixing member 600 and the relay oil passage 303b of the inner cylinder portion 303 of the clutch drum 30. Connected.
- the sleeve 52 press-fitted into the clutch drum 30 of the clutch C1 is formed with an oil hole 52c communicating with the supply path 31c formed in the fixing member 600, and the inner cylinder portion 303 of the clutch drum 30 includes A relay oil passage 303c communicating with the oil hole 52c of the sleeve 52 is formed.
- the relay oil passage 303c is formed on the inner peripheral surface of the inner cylinder portion 303 of the clutch drum 30 so as to extend in the axial direction, and extends in the radial direction at one end (the left end portion in FIG. 1). It communicates with the second cancel oil chamber 47 of C2. As shown in FIGS.
- the first side wall portion 302 of the clutch drum 30 has a plurality of radially extending radial directions alternately so as not to overlap the plurality of first oil passages 302 a when viewed from the axial direction.
- four second oil passages 302c are formed, and the plurality of second oil passages 302c communicate with the relay oil passage 303c formed in the inner cylinder portion 303 on the inner peripheral side and are fixed.
- the interior of the portion 304 communicates with the first cancel oil chamber 37 via an oil passage 302d extending in the axial direction.
- the drain of the lubricating hydraulic circuit is drained through the supply passage 31c of the fixing member 600, the relay oil passage 303c of the inner cylinder portion 303 of the clutch drum 30, the second oil passage 302c of the first side wall portion 302, and the oil passage 302d.
- the first cancel oil chamber 37 communicate with each other, and the drain for the hydraulic circuit of the lubrication system is connected via the supply passage 31c of the fixing member 600 and the relay oil passage 303c of the inner cylinder portion 303 of the clutch drum 30.
- the second cancel oil chamber 47 communicate with each other.
- the first oil passage 302a and the second oil passage 302c are formed on substantially the same plane inside the first side wall portion 302, thereby suppressing an increase in the axial length of the clutches C1 and C2. it can. Further, the first oil passage 302a and the second oil passage 302c are alternately formed as viewed in the axial direction, so that the first engagement oil chamber 34 and the first cancellation oil chamber 37 formed in an annular shape are equally provided. It becomes possible to supply hydraulic oil to.
- the first and second oil passages 302a and 302c have holes formed radially outward from the outer periphery of the first side wall 302 of the clutch drum 30, as indicated by arrows in FIG. After installation, as shown by the white arrow in FIG. 4, the plug (lid body) 54 is press-fitted into the opening of the hole located on the outer peripheral side of the first side wall 302, and is easily closed. can do.
- FIG. 5 is an enlarged cross-sectional view showing a contact portion between the sleeve 52 and the stepped portion 303 d of the inner cylinder portion 303 of the clutch drum 30, and
- FIG. 6 is an enlarged view of a main portion showing an end portion of the sleeve 52.
- the end surface 520 of the sleeve 52 communicates with a relay oil passage 303 c formed on the inner peripheral surface of the inner cylinder portion 303 of the clutch drum 30 and contacts the step portion 303 d of the inner cylinder portion 303.
- First passages 521 extending in the axial direction toward the center are formed at a plurality of locations (eight locations in the embodiment) on the outer periphery of the sleeve 52.
- the end portion of the sleeve 52 is formed so as to be recessed in the axial direction from the end surface 520 that contacts the stepped portion 303 d of the inner cylinder portion 303, and extends in the radial direction to extend between the first passage 521 and the sleeve 52.
- path 522 which connects the inside is formed in multiple places (in the Example, 8 places).
- the second passage 522 has the largest opening at a position communicating with the first passage 521, and gradually narrows in the axial direction from the position communicating with the first passage 521 to the vicinity of the central portion in the radial direction of the sleeve 52.
- the inner peripheral surface is formed to have the same cross-sectional shape.
- An oil passage 303e is formed in the step portion 303d of the inner cylinder portion 303 as shown in the figure.
- the clutch drum 30 and the clutch hub 31 are connected by the frictional force acting between the clutch plates 32 and 33.
- the supply of hydraulic pressure to the first engagement side oil chamber 34 is stopped by a hydraulic control device (not shown), and the clutch piston 35 is urged by the return spring 38 and the clutch plate 32 is released. , 33, the clutch drum 30 and the clutch hub 31 are disconnected.
- the hydraulic oil from the hydraulic control device is supplied to the second engagement side oil via the supply passage 31b of the fixing member 600 and the relay oil passage 303b of the inner cylinder portion 303 of the clutch drum 30. It is supplied to the chamber 44.
- the clutch piston 45 moves toward the clutch plates 42 and 43 by the hydraulic pressure acting on the second engagement side oil chamber 44, and the clutch is interposed between the clutch piston 45 and the contact member fixed to the clutch drum 40.
- the clutch drum 40 and the clutch hub 41 are connected by a frictional force acting between the clutch plates 42 and 43.
- the hydraulic pressure control device (not shown) stops the supply of the hydraulic pressure to the second engagement side oil chamber 44, and the clutch piston 45 is urged by the return spring 48 and the clutch plate 42 is released. , 43, the clutch drum 40 and the clutch hub 41 are disconnected.
- the first and second engagement side oil chambers 34 and 44 are filled with hydraulic oil as described above, the first and second engagement side oil chambers 34, Since the centrifugal hydraulic pressure is generated in 44, even if the supply of hydraulic pressure to the first and second engagement side oil chambers 34, 44 is stopped in an attempt to release the clutches C1 and C2, the clutch pistons 35, 45 are stopped by the centrifugal hydraulic pressure. May be pressed inward in the axial direction (left side in FIG. 1), and release of the clutches C1 and C2 may be delayed.
- the supply path 31c of the fixed member 600 and the inner cylinder portion 303 of the clutch drum 30 The operating oil drained from the hydraulic circuit of the lubricating system is supplied to the first cancel oil chamber 37 of the clutch C1 through the relay oil path 303c, the second oil path 302c and the oil path 302d of the first side wall 302, The hydraulic oil drained from the hydraulic circuit of the lubricating system is supplied to the second cancel oil chamber 47 of the clutch C2 through the supply path 31c of the fixing member 600 and the relay oil path 303c of the inner cylinder portion 303 of the clutch drum 30.
- centrifugal oil pressure is also generated in the first and second cancel oil chambers 37 and 47, and the clutch pistons 35 and 45 are pressed toward the axially outer side (right side in FIG. 1) by the centrifugal oil pressure.
- the force acting on the clutch pistons 35 and 45 can be canceled out from the centrifugal hydraulic pressure generated in the first and second engagement side oil chambers 34 and 44.
- the first and second cancel oil chambers 37 and 47 are not completely filled with the hydraulic oil, and the first and second cancel oil chambers 37 and 47 are not filled. There is air.
- the air existing in the first cancel oil chamber 37 has an oil path 302 d, a second oil path 302 c in the first side wall portion 302, and a clutch. It is discharged to the outside of the clutch C ⁇ b> 1 through the relay oil passage 303 c of the inner cylinder portion 303 of the drum 30 and the first and second passages 521 and 522 formed in the sleeve 52.
- the air existing in the second cancellation oil chamber 47 includes the oil passage 302d, the second oil passage 302c of the first side wall portion 302, the relay oil passage 303c of the inner cylinder portion 303 of the clutch drum 30, and the sleeve 52. Is discharged to the outside of the clutch C2 through the first and second passages 521 and 522 formed in the above. At this time, the hydraulic oil having a large specific gravity moves to the outer peripheral side in the first and second cancel oil chambers 37 and 47 by centrifugal force, so that the air in the first and second cancel oil chambers 37 and 47 becomes the inner periphery.
- the first and second cancel oil chambers 37 are used. , 47 can be prevented from flowing out through the second passage 522 while quickly discharging the air in the outside to the outside.
- the second passage 522 that connects the first passage 521 and the inside of the sleeve 52 extends from the outer peripheral surface of the sleeve 52 to the inner peripheral surface, the centrifugal hydraulic pressure in the first and second cancel oil chambers 37 and 47 is increased.
- the 0 base point can be the inner peripheral surface of the sleeve 52.
- the outflow of the hydraulic oil is suppressed while promoting the discharge of air, and the first and second cancel oil chambers 37 and 47 are centrifuged. It becomes possible to ensure the hydraulic pressure more appropriately.
- the air discharged to the outside of the clutches C1 and C2 through the first and second passages 521 and 522 of the sleeve 52 is discharged to the outside of the vehicle through the inside of the transmission case.
- the hydraulic oil in the first and second cancel oil chambers 37 and 47 is discharged via the first and second passages 521 and 522 of the sleeve 52, the hydraulic oil is contained in the clutch drum 30. After being supplied to the lubrication target such as the planetary gear mechanism 50 through the oil passage 303e formed in the step portion 303d of the cylindrical portion 303 and the clearance of the bearing 51, it is returned to an oil pan (not shown).
- Fulcrum fastening portion between the clutch drum 40 and the clutch drum 30
- force point the portion where the clutch drum 40 supports the cancel plate 36, that is, the inner peripheral portion 363 of the cancel plate 36.
- the contact portion of the clutch drum 40 with the second side wall portion 402 are substantially at the same position. Thereby, it can suppress that a big torsion moment acts on the clutch drum 40, and can suppress the deformation
- the clutch drum 30 of the clutch C1 includes the first outer cylinder portion 301 and the first side wall portion 302 that extends radially inward from the first outer cylinder portion 301.
- the clutch drum 40 of the clutch C2 includes a second outer cylinder part 401 and a second side wall part 402 extending radially inward from the second outer cylinder part 401.
- the cancel plate 36 of the clutch C1 has an inner circumference.
- the portion 363 contacts the second side wall portion 402 of the clutch drum 40 and is supported in the axial direction by the second side wall portion 402 of the clutch drum 40.
- the inner peripheral portion 363 of the cancel plate 36 and the second side wall portion 402 of the clutch drum 40 are fastened to the clutch drum 30.
- the cancel plate 36 presses the clutch drum 40 by the centrifugal hydraulic pressure generated in the first cancel oil chamber 37, the fulcrum of the torsional moment acting on the clutch drum 40 (the fastening portion between the clutch drum 40 and the clutch drum 30).
- the power point (the portion where the clutch drum 40 supports the cancel plate 36, that is, the contact portion between the inner peripheral portion 363 of the cancel plate 36 and the second side wall portion 402 of the clutch drum 40) can be made substantially the same position. Therefore, it is possible to suppress the deformation of the clutch drum 40 by suppressing a large torsional moment from acting on the clutch drum 40.
- the automatic transmission 20 can be made compact by suppressing an increase in the shaft length. Further, it is necessary to provide a seal structure that suppresses leakage of hydraulic oil from the first cancel oil chamber 37 to the cancel plate 36 by fastening the cancel plate 36 between the clutch drum 30 and the clutch drum 40. Disappears.
- the cancel plate 36 is supported by the clutch drum 40 in the vicinity of the connecting portion between the clutch drum 30 and the clutch drum 40, as shown in FIG.
- the fixing portion 304 may not be fastened.
- the cancel plate 36 is caused by the centrifugal hydraulic pressure generated in the first cancel oil chamber 37 of the clutch C1.
- the clutch drum 40 is pressed, the fulcrum of the torsional moment acting on the clutch drum 40 and the power point are brought close to each other, so that a large torsional moment acts on the clutch drum 40 and the deformation of the clutch drum 40 is suppressed. it can.
- An annular fixing portion 304 is extended from the first side wall portion 302 of the clutch drum 30, and an alignment portion 305 extending in the axial direction is formed on the inner peripheral side of the fixing portion 304.
- the clutch drum 40 is fitted to the aligning portion of the fixed portion 304 and fastened to the fixed portion 304. Thereby, the clutch drum 30, the cancellation plate 36, and the clutch drum 40 can be fastened easily. Further, the cancel plate 36 and the clutch drum 40 can be easily aligned by fitting the cancel plate 36 and the clutch drum 40 to the aligning portion 305 extending in the axial direction from the fixed portion 304. .
- the clutch drum 30 includes an inner cylinder portion 303 that extends in the axial direction from the inner peripheral portion of the first side wall portion 302, and the clutch piston 35 is slidable in the axial direction by the fixing portion 304 of the clutch drum 30.
- a first engagement side oil chamber 34 is defined together with the first outer cylinder portion 301, the first side wall portion 302, and the fixing portion 304 of the clutch drum 30, and the clutch piston 45 is supported by the inner cylinder of the clutch drum 30. It is supported by the portion 303 so as to be slidable in the axial direction, and is formed so as to be in sliding contact with the inner peripheral surface of the fixing portion 304 of the clutch drum 30.
- a second engagement side oil chamber 44 is defined together with 304. Accordingly, it is possible to easily configure the clutches C1 and C2 using the fixed portion extending from the first side wall portion 302 of the clutch drum 30.
- the cancel plate 36 and the clutch drum 40 are fastened to the fixed portion 304 of the clutch drum 30 by the rivet 53, and the fixed portion 304 of the clutch drum 30 is connected to the cancel plate 36 and the clutch drum 40 side from the outside of the clutch drum 30.
- a rivet hole 306 including second and third holes 306b and 306c formed so that the inner diameter becomes smaller is formed.
- the second and third holes 306b and 306c of the rivet hole 306 are formed in the fixing part 304 of the clutch drum 30 so that the inner diameter decreases from the outside of the clutch drum 30 toward the cancel plate 36 and the clutch drum 40.
- the present invention is not limited to the automatic transmission 20 according to the embodiment, and may be applied to a manual transmission.
- the automatic transmission 20 including the clutch C1 (first clutch) and the clutch C2 (second clutch) disposed on the inner peripheral side of the clutch C1 so as to overlap the clutch C1 when viewed from the radial direction is referred to as “speed change”
- the clutch drum 30 corresponds to a “first clutch drum”, and is spline-fitted to the inner peripheral surface of the clutch drum 30 and is axially driven by the hydraulic pressure supplied to the first engagement side oil chamber 34.
- the clutch piston 35 that can move to the first position corresponds to the “first clutch piston”, and the cancel plate 36 that defines the first cancel oil chamber 37 for canceling the centrifugal hydraulic pressure together with the clutch piston 35 is the “first cancel plate”.
- the clutch drum 40 that supports the cancel plate 36 in the axial direction corresponds to the “second clutch drum”, and the clutch drum
- the clutch piston 45 that is spline-fitted to the inner peripheral surface of 0 and movable in the axial direction by the hydraulic pressure supplied to the second engagement side oil chamber 44 corresponds to a “second clutch piston”.
- the cancel plate 46 that defines the second cancel oil chamber 47 for canceling the centrifugal hydraulic pressure corresponds to a “second cancel plate”.
- the present invention can be used in the transmission manufacturing industry.
Abstract
Description
第1クラッチと、径方向からみて前記第1クラッチと重なるように該第1クラッチの内周側に配置される第2クラッチとを備える変速装置において、
前記第1クラッチは、第1クラッチドラムと、前記第1クラッチドラムの内周側で第1係合側油室に供給される油圧により軸方向に移動可能な第1クラッチピストンと、該第1クラッチピストンと共に遠心油圧をキャンセルするための第1キャンセル油室を画成する第1キャンセルプレートとを有し、
前記第1キャンセルプレートは、前記第1クラッチドラムと前記第2クラッチの第2クラッチドラムとの間で締結されることを特徴とする。
Claims (6)
- 第1クラッチと、径方向からみて前記第1クラッチと重なるように該第1クラッチの内周側に配置される第2クラッチとを備える変速装置において、
前記第1クラッチは、第1クラッチドラムと、前記第1クラッチドラムの内周側で第1係合側油室に供給される油圧により軸方向に移動可能な第1クラッチピストンと、該第1クラッチピストンと共に遠心油圧をキャンセルするための第1キャンセル油室を画成する第1キャンセルプレートとを有し、
前記第1キャンセルプレートは、前記第1クラッチドラムと前記第2クラッチの第2クラッチドラムとの間で締結されることを特徴とする変速装置。 - 前記第1クラッチドラムは、第1外筒部と、該第1外筒部から径方向内側に延出される第1側壁部とを含み、
前記第2クラッチドラムは、第2外筒部と、該第2外筒部から径方向内側に延出されると共に前記第1キャンセルプレートの内周部と当接する第2側壁部とを含み、
前記第1キャンセルプレートの前記内周部と前記第2クラッチドラムの前記第2側壁部とが前記第1クラッチドラムに締結されることを特徴とする請求項1に記載の変速装置。 - 前記第2クラッチは、前記第2クラッチドラムの内周側で第2係合側油室に供給される油圧により前記軸方向に移動可能な第2クラッチピストンと、該第2クラッチピストンと共に遠心油圧をキャンセルするための第2キャンセル油室を画成する第2キャンセルプレートとを有することを特徴とする請求項2に記載の変速装置。
- 前記第1クラッチドラムの前記第1側壁部からは、環状の固定部が前記軸方向に延出され、
前記固定部の内周側には、前記軸方向に延びる調心部が形成され、前記第1キャンセルプレートおよび前記第2クラッチドラムは、前記固定部の前記調心部に嵌合されると共に該固定部に締結されることを特徴とすることを特徴とする請求項2または3に記載の変速装置。 - 前記第1クラッチドラムは、前記第1側壁部の内周部から軸方向に延出される内筒部を含み、
前記第1クラッチピストンは、前記第1クラッチドラムの前記固定部により前記軸方向に摺動自在に支持されると共に、前記第1クラッチドラムの前記第1外筒部と前記第1側壁部と前記固定部と共に前記第1係合側油室を画成し、
前記第2クラッチドラムは、前記第1キャンセルプレートを前記軸方向に支持し、
前記第2クラッチピストンは、前記第1クラッチドラムの前記内筒部により前記軸方向に摺動自在に支持されると共に前記第1クラッチドラムの前記固定部の内周面と摺接するように形成され、前記第1クラッチドラムの前記内筒部と前記第1側壁部と前記固定部と共に前記第2係合側油室を画成することを特徴とする請求項4に記載の変速装置。 - 前記第1キャンセルプレートおよび前記第2クラッチドラムは、前記第1クラッチドラムの前記固定部にリベットにより締結され、
前記第1クラッチドラムの前記固定部には、第1クラッチドラムの外側から前記第1キャンセルプレートおよび前記第2クラッチドラム側に向けて内径が小さくなるようにリベット孔が穿設されていることを特徴とする請求項4または5に記載の変速装置。
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DE112012000097.8T DE112012000097B4 (de) | 2011-03-30 | 2012-03-15 | Übertragungsvorrichtung mit einer ersten Kupplung und einer zweiten Kupplung |
CN201280002913.6A CN103109102B (zh) | 2011-03-30 | 2012-03-15 | 变速装置 |
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JP5585566B2 (ja) * | 2011-03-30 | 2014-09-10 | アイシン・エィ・ダブリュ株式会社 | 変速装置 |
JP6052401B2 (ja) | 2013-04-30 | 2016-12-27 | アイシン・エィ・ダブリュ株式会社 | 変速装置 |
JP6332472B2 (ja) * | 2014-12-26 | 2018-05-30 | アイシン・エィ・ダブリュ株式会社 | クラッチおよびそれを備えた変速装置 |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007107559A (ja) * | 2005-10-11 | 2007-04-26 | Exedy Corp | 複式クラッチ装置 |
JP2010048381A (ja) * | 2008-08-22 | 2010-03-04 | Aisin Aw Co Ltd | 自動変速機 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001263369A (ja) * | 2000-03-21 | 2001-09-26 | Aisin Seiki Co Ltd | 自動変速機用クラッチ装置 |
US6305521B1 (en) * | 2000-04-24 | 2001-10-23 | General Motors Corporation | Hydraulically actuated piston with an air bleed |
JP4776209B2 (ja) * | 2003-12-25 | 2011-09-21 | アイシン・エィ・ダブリュ株式会社 | 自動変速機 |
FR2879703B1 (fr) * | 2004-12-21 | 2008-05-30 | Renault Sas | Systeme d'embrayage humide multiple a moyeu fixe d'alimentation en liquide d'actionnement et de compensation et en liquide de refroidissement |
DE112007000452A5 (de) | 2006-04-04 | 2008-11-27 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Radiale Stromungskammer für Kupplungen in einer Kupplungsbaugruppe |
US8002663B2 (en) | 2007-02-23 | 2011-08-23 | Aisin Aw Co., Ltd. | Automatic transmission |
JP2008232417A (ja) * | 2007-02-23 | 2008-10-02 | Aisin Aw Co Ltd | 自動変速機 |
JP5130814B2 (ja) * | 2007-02-23 | 2013-01-30 | アイシン・エィ・ダブリュ株式会社 | 自動変速機 |
DE102007022419A1 (de) | 2007-05-10 | 2008-11-13 | Borgwarner Inc., Auburn Hills | Doppelwellenkupplungsanordnung mit integrierter Dichtungsfläche |
CN101578464B (zh) | 2007-07-05 | 2012-11-14 | 爱信艾达株式会社 | 自动变速器 |
JP4640477B2 (ja) * | 2008-09-19 | 2011-03-02 | マツダ株式会社 | 自動変速機用クラッチの製造方法 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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JP2010048381A (ja) * | 2008-08-22 | 2010-03-04 | Aisin Aw Co Ltd | 自動変速機 |
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