CN101113771A - Automatic transmission - Google Patents
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- CN101113771A CN101113771A CN 200710127134 CN200710127134A CN101113771A CN 101113771 A CN101113771 A CN 101113771A CN 200710127134 CN200710127134 CN 200710127134 CN 200710127134 A CN200710127134 A CN 200710127134A CN 101113771 A CN101113771 A CN 101113771A
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- dish hub
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Abstract
A hub 64 and a drum 66 are respectively provided inside and outside a forward clutch 21 (multiple-disc clutch) of an automatic transmission 1 for a vehicle. A piston 68 for pushing the forward clutch 21 and a hydraulic servo 69 for controlling the piston 68 are provided inside the hub 64 . A plurality of notched portions 70, 71 are formed in the piston 68 and the hub 64 with the positions thereof displaced from each other in the peripheral direction so that the piston 68 and the hub 64 are overlapped with each other in the axial direction in such a fashion that parts of one of the piston 68 and the hub 64 where no notched portions are formed are inserted into the notched portions 70 or 71 of the other. Thus, overlap between the piston 68 and the hub 64 in the axial direction reduces the size of the automatic transmission 1 .
Description
Technical field
The present invention relates to a kind of automatic transmission of vehicle, particularly the technology of the miniaturization of automatic transmission.
Background technique
Up to the present, known have a following automatic transmission, promptly comprises: be connected in rotating cylinder portion on the input shaft of speed changer, be connected in the dish hub portion of carry-out part and make these rotating cylinder portions and multidisc clutch that dish hub portion engages, breaks away from.
For example open in the automatic transmission of being put down in writing in the 2003-106342 communique, comprising the spy: be arranged on multidisc clutch interior Monday side dish hub portion, be arranged on multidisc clutch outer Monday side rotating cylinder portion, the piston of pushing multidisc clutch and the oil servomotor of controlling this piston.Oil servomotor is arranged on rotating cylinder one side usually.
Open in the automatic transmission of being put down in writing in the 2003-106450 communique the spy, comprising: the turn-sensitive device of the rotation of the piston of the rotating cylinder portion of the dish hub portion of multidisc clutch, outer all surface bearing multidisc clutches, inner all surface bearing multidisc clutches, pushing multidisc clutch, the oil servomotor of control piston, detection dish hub portion.Oil servomotor is arranged on rotating cylinder portion one side.The input rotation speed sensor that detects the rotational speed of input rotation key element (input shaft) detects the number of revolution of rotating cylinder portion periphery.
Summary of the invention
In recent years, desired engine horsepower is increasing, and on the other hand, the size aspect of vehicle is restricted again, therefore just requires the automatic transmission miniaturization.
Yet, around the multidisc clutch of existing automatic transmission, in the dish hub portion that is connected in carry-out part and be arranged between the piston of rotating cylinder one side of the input shaft that is connected in speed changer, because joint, the disengaging of multidisc clutch, marquis's number of revolution can be different sometimes.Therefore, need between dish hub portion and piston, form the gap of a certain degree.Like this, just can not also just can not make the size of automatic transmission fully little in the axial direction with chimeric mode layout dish hub portion and piston.Problem that Here it is.
On the other hand, if oil servomotor is arranged on dish hub one side that is connected on the input shaft, rather than be arranged on rotating cylinder portion one side that is connected in carry-out part, make dish hub portion and piston chimeric mutually in the axial direction, then can be arranged on interior Monday of the side of rotating cylinder portion because of dish hub portion, so under the such form of described patent documentation 1, can not detect the number of revolution of the dish hub portion that is covered by rotating cylinder portion.Therefore also expected this way of number of revolution of direct measurement input shaft, but because the outer diameter of measured portion is very little in this case, so the testing precision deterioration, and the space that is difficult to guarantee to be provided with in addition the input rotation speed sensor.This also is a problem.
The present invention researchs and develops out for addressing the above problem just, and first purpose is: in chimeric mutually mode piston and dish hub portion are arranged in the axial direction, seeking the miniaturization of automatic transmission.
Second purpose is: can utilize the number of revolution of the turn-sensitive device measuring disk hub portion that is arranged on rotating cylinder portion periphery in the miniaturization of seeking automatic transmission.
In order to reach above-mentioned first purpose, in this invention, oil servomotor is arranged on dish hub portion one side that is connected on the input shaft, rather than is arranged on rotating cylinder portion one side that is connected in carry-out part.
Particularly, in the invention of first aspect, with first rotary component that comprises the input shaft that is connected in speed changer, be connected in second rotary component of carry-out part and make this first rotary component and the automatic transmission of the multidisc clutch that second rotary component engages, breaks away from is an object.
This automatic transmission comprises: dish hub portion is arranged on interior Monday of the side of described multidisc clutch; Rotating cylinder portion is arranged on outer Monday of the side of described multidisc clutch; Piston pushes described multidisc clutch; And oil servomotor, control described piston.Described oil servomotor be arranged in the described dish hub portion or with parts that dish hub portion connects on.
Described piston and dish hub portion have notch respectively on a plurality of positions of staggering mutually along circumferencial direction, described piston and dish hub portion are arranged to: insert that the opposing party is not formed with the part of notch and chimeric in the axial direction at a side notch.
According to described structure because oil servomotor is arranged on the dish hub that is connected on the input shaft or with parts that the dish hub is connected on, so piston and dish hub one are rotated.So, need not to be provided for preventing the gap that contacts at the two.At this, if on a plurality of positions of staggering mutually along circumferencial direction in described piston and the dish hub portion, notch is set respectively, and the part that does not have notch that will coil hub portion inserts the notch of piston, and piston and dish hub portion just can be chimeric mutually in the axial direction in the part that is provided with notch.The result is can make axial shorten length, thereby can realize the miniaturization of automatic transmission.
In the invention of second aspect, this automatic transmission comprises: surround described speed changer and have the case of transmission of transmission case body sidewall and in the axis central part of described transmission case body sidewall extends vertically and described input shaft inserts hub portion.Described first rotary component comprises: described dish hub portion, first annulus that is arranged on the sleeve that rotates freely on the described hub portion and described dish hub portion and described sleeve are linked up.
According to described structure, be connected on the sleeve because will coil hub portion via first annulus, this sleeve is arranged on the hub portion of case of transmission extension and can rotates freely, so can pressurized working oil be supplied with oil servomotor from hub portion.So, because need not to be provided with in addition the supply road of high pressure oil, thus can make axial shorten length, thus can realize the miniaturization of automatic transmission.
In the invention of the third aspect, described piston comprises: second annulus that interior perimembranous is slipped with described sleeve periphery and perimembranous begins to extend diametrically in this, connect with the peripheral part of described second annulus and the cylindrical part of extending towards transmission case body sidewall one side and connects with the end of transmission case body sidewall one side of described cylindrical part and towards the 3rd annulus of extension radially.
According to said structure because piston forms very for a short time, so easily piston is arranged in dish hub portion or with parts that dish hub portion is connected on.So, can make axial shorten length, thereby can realize the miniaturization of automatic transmission.
In the invention of fourth aspect, comprise sealing plate, the interior perimembranous of sealing plate is fastened on described sleeve periphery and can not be towards described transmission case body sidewall one side shifting, diametrically from interior perimembranous begin to extend and with the slipping in interior week of described cylindrical part.The compression chamber of described piston is formed by the zone that surrounds with described sleeve, described second annulus, described cylindrical part and described sealing plate.
According to described structure because interior Monday of dish hub portion side be formed with compression chamber, so oil servomotor becomes miniaturization.So, can make axial shorten length, thereby can realize the miniaturization of automatic transmission.
In the invention aspect the 5th, described dish hub portion comprises the 4th annulus that extends towards transmission case body sidewall one side cylindricly; The inner peripheral surface of the peripheral part of described second annulus and described the 4th annulus slips; The balance cylinder of described piston is formed by the zone that impales with described sleeve, described first annulus, described the 4th annulus and described second annulus.
According to described structure, because the sealing plate usefulness that the connected element of dish hub and sleeve can the double as balance cylinder, so oil servomotor miniaturization more.So, can make axial shorten length, thereby can realize the miniaturization of automatic transmission.
In the invention aspect the 6th, be formed with the working oil of working oil being supplied with described dish hub portion from the side opposite of described first annulus at described first annulus and supply with guide plate with piston.
According to described structure, because piston is arranged in interior Monday of the side of dish hub, so need be from a side opposite with working oil supply dish hub portion with piston, but supply with guide plate because be formed with working oil at first annulus, so supplying with guide plate along this working oil, working oil supplies with.So, need not to be provided with in addition the supply road of working oil.The result is can make axial shorten length, thereby can realize the miniaturization of automatic transmission.
For reaching described second purpose, in the invention aspect the 7th, turn-sensitive device is arranged on outer Monday of the side of rotating cylinder portion, the detected portion of turn-sensitive device is arranged on the piston.
Particularly, this automatic transmission comprises: the turn-sensitive device that detects the number of revolution of described dish hub portion.Described oil servomotor be arranged on described dish hub portion or with parts that dish hub portion connects on.Described turn-sensitive device is arranged on outer Monday of the side of described rotating cylinder portion, and the detected portion of described turn-sensitive device is arranged on the described piston.
According to described structure, because the dish hub is arranged in interior Monday of the side of rotating cylinder portion, so can not detect the number of revolution of the dish hub portion that is covered by rotating cylinder portion.On the other hand because with piston and oil servomotor be arranged on the dish hub portion that is connected with input shaft or with parts that the dish hub is connected on, so piston and dish hub portion one are rotated.So, by the detected portion of turn-sensitive device is set on piston, just can utilize the turn-sensitive device that is arranged on rotating cylinder portion periphery via piston to detect the number of revolution of dish hub portion, can effectively utilize simultaneously be arranged on the dish hub or with parts that the dish hub is connected on piston.The result is to reach save spaceization.
In the invention of eight aspect, the detected portion of described turn-sensitive device begins to extend diametrically from the peripheral end of the described piston of described rotating cylinder portion opening one side, further extends in the axial direction to form between described turn-sensitive device and described rotating cylinder portion.
According to described structure, because the detected portion of turn-sensitive device is extended, extend and cover rotating cylinder portion periphery from the peripheral end of piston, and be formed on interior Monday of the side of turn-sensitive device, even, also can detect the number of revolution of placing hub portion so arrange turn-sensitive device according to existing way.And because effectively utilize piston, detected portion is miniaturized.
As mentioned above, according to the present invention, with oil servomotor be arranged on the dish hub that is connected on the input shaft or with parts that dish hub portion is connected on, and allow piston and to coil hub portion chimeric in the axial direction, just axial shorten length can be made, thereby the miniaturization of automatic transmission can be realized.
Turn-sensitive device is arranged on outer Monday of the side of rotating cylinder portion, the detected portion of turn-sensitive device is arranged on the piston.So, just can seek the miniaturization of automatic transmission in the limit, lateral dominance detects the number of revolution of dish hub portion with the turn-sensitive device that is arranged on rotating cylinder portion periphery.
The simple declaration of accompanying drawing
Fig. 1 is the integrally-built schematic representation of the related automatic transmission of the demonstration embodiment of the invention.
Fig. 2 is with forward clutch and the sectional view that illustrates after amplifying on every side.
Fig. 3 shows forward clutch and stereogram on every side thereof.
Fig. 4 shows that will coil hub portion is fitted to and coils resulting stereogram behind the hub side clutch disk.
Fig. 5 shows rotating cylinder portion is fitted to resulting stereogram behind the rotating cylinder side clutch disk.
Fig. 6 is the stereogram of being seen from transmission case body sidewall Reading the Tape hub portion.
Fig. 7 sees the stereogram that piston is seen from a side opposite with the transmission case body sidewall.
Symbol description
1 automatic transmission
11 case of transmissions
11a transmission case body sidewall
15 turbine shafts (input shaft)
21 forward clutch (multidisc clutch)
64 dish hub portions
66 rotary parts
68 pistons
69 oil servomotors
70 piston side notchs
71 dish hub side notchs
72 hub portion
73 sleeves
74 first annulus
75 second annulus
Perimembranous in the 75a
76 cylindrical part
77 the 3rd annulus
79 sealing plates
85 the 4th annulus
86 compression chambers
88 balance cylinders
92 otch (detected portion)
93 input side turn-sensitive devices
Embodiment
Below, describe embodiments of the invention with reference to the accompanying drawings in detail.
Fig. 1 schematically shows the unitary construction of the automatic transmission 1 of first embodiment of the invention.As shown in Figure 1, automatic transmission 1 comprises: imported the output of motor 2 torque-converters 3, have the change gear mechanism 6 of first and second planetary gears 4,5.
Torque-converters 3 comprises following components: wing pump 9, be fixed in the torque-converters housing 8, and torque-converters housing 8 is connected on the engine output shaft 7; The turbine rotor 10 that is provided with in opposite directions and utilizes this wing pump 9 to drive with this wing pump 9 with working oil; Be arranged between described wing pump 9 and the turbine rotor 10 and by the stator 13 of overrunning clutch 12 by case of transmission 11 supportings; Be arranged between torque-converters housing 8 and the turbine rotor 10 and with engine output shaft 7 and turbine rotor 10 direct-connected locked type clutches (lockup clutch) 14.
The output of motor 2 is input to torque-converters 3 from engine output shaft 7, after goes through torque conversion, is exported to change gear mechanism 6 via the turbine shaft 15 as input shaft.Oil pump 16 is disposed in a side opposite with motor of torque-converters 3, is driven by engine output shaft 7 via torque-converters housing 8 and wing pump 9.
Change gear mechanism 6 comprises forward clutch (forward clutch) 21, and this forward clutch 21 is arranged in to be made multidisc clutch and use between the sun gear 20 of the turbine shaft 15 and first planetary gears 4.Be provided with the clutch that reverses gear (reverse clutch) 23 between the sun gear 22 of the turbine shaft 15 and second planetary gears 5.The 2-4 speed brake device 26 that between the small gear 24 of the turbine shaft 15 and second planetary gears 5, has 3-4 speed clutch 25 and the sun gear 22 of second planetary gears 5 is fixed.The ring gear 27 of first planetary gears 4 and the small gear 24 of second planetary gears 5 are coupled, low speed reverse gear break 29 and the overrunning clutch 30 of being provided with arranged side by side between they and case of transmission 11.The pinion drive parts 31 of first planetary gears 4 are connected with the ring gear 32 of second planetary gears 5, are connected with the output gear 33 as carry-out part on them.
Be provided with intermediate transmission mechanism, this intermediate transmission mechanism comprises following components: always with first intermediate gear 40 of described output gear 33 engagements, second intermediate gear 42 that is fixed with the neutral gear axle 41 of this first intermediate gear 40 and is fixed on the opposite side of this neutral gear axle.Second intermediate gear 42 is meshed with the input gear 51 of differential mechanism 50.So, the output of change gear mechanism 6 just is communicated on the differential casing 52, the live axle 53,54 about conveying to via this differential mechanism 50.
Table 1 shows each friction key element 21,23,25,26,29 and the working state of overrunning clutch 30 and relation of gear stage.
Table 1
| Forward clutch (21) | Clutch (23) reverses gear | 3-4 speed clutch (25) | 2-4 speed break (26) | The low speed break (29) that reverses gear | Overrunning clutch (30) | |
| 1 speed | ○ | (○) | ○ | |||
| 2 speed | ○ | ○ | ||||
| 3 speed | ○ | ○ | ||||
| 4 speed | ○ | ○ | ||||
| The speed of reversing gear | ○ | ○ |
(zero) only in low scope (low range) work down
Then, be that forward clutch 21 and structure on every side thereof are described in detail to feature of the present invention portion.
Fig. 2 illustrates forward clutch 21 and section on every side thereof enlargedly.Fig. 3 shows forward clutch 21 and parts on every side thereof.Fig. 4 shows dish hub portion and is entrenched in the situation of coiling on the hub side clutch disk.Fig. 5 shows rotating cylinder and is entrenched in situation on the rotating cylinder side clutch disk.Fig. 6 shows dish hub portion, and Fig. 7 shows rotating cylinder.
As shown in Figure 2, forward clutch 21, interior Monday side have a plurality of dish hub side clutch disks 55, Monday, side had a plurality of rotating cylinder side clutch disks 56 outside.Friction plate 57 is posted on two sides at dish hub side clutch disk 55.The dish hub side clutch disk 55 at two ends only posts friction plate 57 in the inboard.On the other hand, on rotating cylinder side clutch disk 56, do not post friction plate 57.So only friction plate 57 being set being connected on the dish hub side clutch disk 55 of turbine shaft 15, is in order to reduce because the resisting moment that resistance causes.Remark additionally, in order to prevent to fall, the thickness of the dish hub side clutch disk 55 at two ends forms thicklyer than the thickness of middle dish hub side clutch disk 55.
Be on the sidewall of close motor 2 one sides of described case of transmission 11 at the axis central part of transmission case body sidewall 11a, be formed with in the axial direction the hub portion 72 of extending and having turbine shaft 15 to insert along a side opposite with motor 2.This hub portion 72 is provided with first rotary component 60 that can rotate comfortablely.In other words, as shown in Figure 6, this first rotary component 60 by dish hub portion 64, be arranged on the hub portion 72 and the sleeve 73 that can rotate freely, first annulus 74 that these dish hub portions 64 and sleeve 73 are linked up constitute.Be formed with in periphery in the dish hub portion 64 and be formed with concavo-convex dish hub side clutch embedding part 64a, corresponding with dish hub side clutch disk 55.As shown in Figure 4, in side interior Monday of described dish hub side clutch disk 55, dish hub portion 64 combines with this dish hub side clutch disk 55, and one is rotated.In other words, interior Monday of dish hub side clutch disk 55 side be formed with clutch side embedding part 55a, this clutch side embedding part 55a and dish hub side clutch embedding part 64a engagement.Outer circumferential face supporting disk hub side clutch disk 55 by dish hub portion 64.Has dish hub side notch 71 in a plurality of places (being 4 places in this embodiment) of the circumferencial direction of this dish hub portion 64.Interior Monday of dish hub portion 64 side be formed with the 4th annulus 85, concentric with this dish hub portion 64, extend towards case of transmission 11a sidewall one side cylindricly.
On the other hand, as shown in Figure 5, allow rotating cylinder portion 66 and rotating cylinder side clutch disk 56 jog separately outer Monday of the rotating cylinder side clutch disk 56 of forward clutch 21 side be meshed, and one combines rotatably.In other words, the inner peripheral surface by rotating cylinder portion 66 supports rotating cylinder side clutch disk 56.
As shown in Figure 2, close transmission case body sidewall 11a one side in described dish hub portion 64 is provided with the piston 68 of pushing forward clutch 21.The scraper plate (lip plate) 78 of the perimembranous 75a that sets within it of this piston 68 slips with described sleeve 73 peripheries, second annulus 75 from this in perimembranous 75a radially extend.As shown in Figure 7, piston 68 also has the cylindrical part 76 that connects with the peripheral part of second annulus 75 and extend towards transmission case body sidewall 11a one side.The 3rd annulus 77 in the end of close transmission case body sidewall 11a one side of inner cylinder portion 76 towards radially extending.
On the 3rd annulus 77 of piston 68, a plurality of places (being 4 places in this embodiment) of staggering in a circumferential direction at the dish hub side notch 71 with dish hub portion 64 are provided with piston side notch 70.So, as shown in Figure 3,, just the part of not coiling hub side notch 71 of dish hub portion 64 can be inserted in the piston side notch 70 of piston 68 by having notch 70,71 mutually.In addition, small-sized because piston 68 forms, so be easy to piston 68 is arranged in close transmission case body sidewall 11a one side of dish hub portion 64.As shown in Figure 2, dish hub portion 64 and piston 68 are positioned to very compact, the part that makes the opposing party's the part that is not provided with notch insert to be provided with notch 70,71 and chimeric in the axial direction.Therefore, the axial length of automatic transmission 1 is shortened.
Interior Monday of described dish hub portion 64 side be provided with the oil servomotor 69 of control piston 68.Particularly, be provided with sealing plate 79 in described sleeve 73 peripheries.Interior perimembranous 79a with sealing plate 79 fixes by the taboo ejecting plate 80 of ring-type, makes the interior perimembranous 79a of sealing plate 79 can not move towards transmission case body sidewall 11a.Prevent leakage of oil by O type ring 82 between the interior perimembranous 79a of sealing plate 79 and sleeve 73 peripheries.Sealing plate 79 towards radially extending, is arranged on its scraper plate 78 of peripheral part and slipping in interior week of cylindrical part 76 from interior perimembranous.
The compression chamber 86 of described piston 68 is impaled by sleeve 73, second annulus 75, cylindrical part 76 and sealing plate 79, is formed on by two scraper plates 78 and O type ring 82 to prevent in the zone of leakage of oil.So, because compression chamber 86 is formed on interior Monday of the side of dish hub portion 64, so oil servomotor 69 is miniaturized.Supply with road 87 from the high pressure oil of oil pump 16 by the high pressure oil that forms by hub portion 72 and sleeve 73 and feed to this compression chamber 86.Because will coil hub portion 64 by first annulus 74 is connected in and is arranged on hub portion 72 of extending from case of transmission 11 and the sleeve 73 that can rotate freely, so just can feed to oil servomotor 69 from hub portion 72 by the working oil of oil pump 16 pressurizations.Therefore, owing to need not to be provided with in addition the supply road of high pressure oil, the axial length of automatic transmission 1 is shortened.
Be arranged on the scraper plate 78 of the peripheral part of described second annulus 75, slip with the inner peripheral surface of the 4th annulus 85.The balance cylinder 88 of piston 68 is impaled by sleeve 73, first annulus 74, the 4th annulus 85 and second annulus 75, is formed on the zone that prevents leakage of oil with two scraper plates 78.In this balance cylinder 88, be provided with a plurality of return springs 89 of pressing second annulus 75 of piston 68 from a thruster opposite in a circumferential direction with transmission case body sidewall 11a.So, because the sealing plate of balance cylinder 88 can double as dish hub portion 64 and the coupling member of sleeve 73 i.e. first annulus 74 and the 4th annulus 85, so oil servomotor 69 is just by further miniaturization.
On described first annulus 74, be formed with from the side opposite of described first annulus 74 working oil that working oil feeds to described dish hub portion 64 is supplied with guide plate 90 with piston 68.In other words, though because piston 68 is disposed in interior Monday of the side and need working oil be fed to dish hub portion 64 from a side opposite with piston 68 of dish hub portion 64, but supply with guide plate 90 because be formed with working oil, supply with working oil so supply with guide plate 90 along this working oil at first annulus 74.The result is to need not to be provided with in addition the supply road of working oil.
As shown in Figure 2, outer Monday of rotating cylinder portion 66 side be provided with the input side turn-sensitive device 93 of the rotation of detection dish hub portion 64.This input side turn-sensitive device 93 is made of for example proximity detector.
On the other hand, as Fig. 3 and shown in Figure 7, piston 68 peripheral ends in opening one side (transmission case body sidewall 11a one side) of rotating cylinder portion 66 are formed with extending portion 91, this extending portion 91 begins along radially extending from this peripheral end, and extends towards interior Monday of the side of described input side turn-sensitive device 93 in the axial direction.On this extension part 91, be formed with the otch 92 of output gear 33 1 side openings equably, the part that is formed with these otch 92 be arranged on input side turn-sensitive device 93 under, play a part sensing rotor as detected portion.So, input side turn-sensitive device 93 is just by detecting the otch 92 of piston 68, to detect the number of revolution of turbine shaft 15.
Remark additionally, as shown in Figure 2, outer Monday of output gear 33 side be provided with the outlet side turn-sensitive device 94 that constitutes by proximity detector.By the number of revolution of these outlet side turn-sensitive device 94 detection output gears 33, just recorded the number of revolution of outlet side.
By the number of revolution that detects turbine shaft 15 and output gear 33 by these input side turn-sensitive devices 93 and outlet side turn-sensitive device 94 accurately, just can carry out speed change, thereby improve gearshift performance in the suitable moment.
-embodiment's effect-
Therefore, the automatic transmission related according to this embodiment is because be arranged on oil servomotor 69 interior Monday of the side of the dish hub portion 64 that is connected in turbine shaft 15, so piston 68 and the 64 one rotation of dish hub portion.So, just need not between piston 68 and dish hub portion 64, to be provided for to prevent the gap that contacts.As mentioned above, if a plurality of places of staggering mutually in a circumferential direction in piston 68 and dish hub portion 64 are provided with notch 70 respectively, 71, to coil the piston side notch 70 of the part insertion piston 68 that does not coil hub side notch 71 of hub portion 64, piston 68 and dish hub portion 64 just can be chimeric mutually in the axial direction.Therefore, because the shorten length on can making axially, so can seek the miniaturization of automatic transmission 1.
Like this, because dish hub portion 64 is set at interior Monday of the side of rotating cylinder portion 66, so can not detect the number of revolution of the dish hub portion 64 that is covered by rotating cylinder portion 66.On the other hand, because piston 68 and oil servomotor 69 be arranged in the dish hub portion 64 that is connected in turbine shaft 15 side Monday, so piston 68 and the 64 one rotation of dish hub portion.So, by the otch 92 as detected portion of input side turn-sensitive device 93 is set on piston 68, just can utilize the number of revolution that is arranged on the input side turn-sensitive device 93 detection dish hub portions 64 of rotating cylinder portion 66 peripheries via piston 68, can effectively utilize simultaneously the piston 68 that is arranged on side Monday in the dish hub portion 64, the result is to reach save spaceization.
Remark additionally, the foregoing description is desirable in essence example, and the present invention and not meaning that can limit its scope of using thing and purposes etc.
Claims (11)
1. automatic transmission is characterized in that:
Comprise:
First rotary component is connected on the input shaft of speed changer,
Second rotary component is connected in carry-out part,
Multidisc clutch makes this first rotary component and second rotary component engage, break away from,
Dish hub portion is arranged on interior Monday of the side of described multidisc clutch,
Rotating cylinder portion is arranged on outer Monday of the side of described multidisc clutch,
Piston pushes described multidisc clutch, and
Oil servomotor is controlled described piston;
Described oil servomotor, be arranged in the described dish hub portion or with parts that dish hub portion connects on;
Described piston and dish hub portion have notch respectively on a plurality of positions of staggering mutually along circumferencial direction, described piston and dish hub portion are arranged to: insert that the opposing party is not formed with the part of notch and chimeric in the axial direction at a side notch.
2. automatic transmission according to claim 1 is characterized in that:
This automatic transmission comprises: surround described speed changer and have the case of transmission of transmission case body sidewall and in the axis central part of described transmission case body sidewall extends vertically and described input shaft inserts hub portion;
Described first rotary component comprises: described dish hub portion, first annulus that is arranged on the sleeve that rotates freely on the described hub portion and described dish hub portion and described sleeve are linked up.
3. automatic transmission according to claim 2 is characterized in that:
Described piston comprises: second annulus that interior perimembranous is slipped with described sleeve periphery and perimembranous begins to extend diametrically in this, connect with the peripheral part of described second annulus and the cylindrical part of extending towards transmission case body sidewall one side and connects with the end of transmission case body sidewall one side of described cylindrical part and towards the 3rd annulus of extension radially.
4. automatic transmission according to claim 2 is characterized in that:
Comprise sealing plate, the interior perimembranous of sealing plate is fastened on described sleeve periphery and can not be towards described transmission case body sidewall one side shifting, diametrically from interior perimembranous begin to extend and with the slipping in interior week of described cylindrical part;
The compression chamber of described piston is formed by the zone that surrounds with described sleeve, described second annulus, described cylindrical part and described sealing plate.
5. automatic transmission according to claim 4 is characterized in that:
Described dish hub portion comprises: the 4th annulus that extends towards transmission case body sidewall one side cylindricly;
The inner peripheral surface of the peripheral part of described second annulus and described the 4th annulus slips;
The balance cylinder of described piston is formed on the zone that is impaled by described sleeve, described first annulus, described the 4th annulus and described second annulus.
6. automatic transmission according to claim 2 is characterized in that:
Be formed with the working oil of working oil being supplied with described dish hub portion from the side opposite of described first annulus at described first annulus and supply with guide plate with piston.
7. automatic transmission according to claim 1 is characterized in that:
Comprise: the turn-sensitive device that detects the number of revolution of described dish hub portion;
Described piston and oil servomotor be arranged on described dish hub portion or with parts that dish hub portion connects on;
Described turn-sensitive device is arranged on outer Monday of the side of described rotating cylinder portion, and the detected portion of described turn-sensitive device is arranged on the described piston.
8. automatic transmission according to claim 7 is characterized in that:
The detected portion of described turn-sensitive device begins to extend diametrically from the peripheral end of the described piston of described rotating cylinder portion opening one side, further extends in the axial direction to form between described turn-sensitive device and described rotating cylinder portion.
9. automatic transmission according to claim 7 is characterized in that:
Described dish hub portion and input shaft link.
10. automatic transmission according to claim 7 is characterized in that:
This automatic transmission comprises:
Case of transmission surrounds described speed changer and has the transmission case body sidewall,
Hub portion is extended and described input shaft inserts vertically at the axis central part of described transmission case body sidewall,
Sleeve is arranged on the described hub portion and rotates freely,
First annulus links up described dish hub portion and described sleeve,
Second annulus, interior perimembranous and described sleeve periphery slip and in this perimembranous begin to extend diametrically,
Cylindrical part connects with the peripheral part of this second annulus and extends towards transmission case body sidewall one side,
The 3rd annulus links with the end of transmission case body sidewall one side of this cylindrical part and along radially extending,
Piston comprises: described second annulus, described cylindrical part and described the 3rd annulus, and
Sealing plate, interior perimembranous are fastened on described sleeve periphery and can not be along described transmission case body sidewall one side shiftings, diametrically from interior perimembranous begin to extend and with the slipping in interior week of described cylindrical part;
The compression chamber of described piston is formed by the zone that impales with described sleeve, described second annulus, described cylindrical part and described sealing plate.
11. automatic transmission according to claim 10 is characterized in that:
Described dish hub portion comprises: the 4th annulus that extends towards transmission case body sidewall one side cylindricly;
The inner peripheral surface of the peripheral part of described second annulus and described the 4th annulus slips;
The balance cylinder of described piston is formed by the zone that impales with described sleeve, described first annulus, described the 4th annulus and described second annulus.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006200380 | 2006-07-24 | ||
| JP2006200380A JP4770625B2 (en) | 2006-07-24 | 2006-07-24 | Automatic transmission |
| JP2006210622 | 2006-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101113771A true CN101113771A (en) | 2008-01-30 |
Family
ID=39022256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710127134 Pending CN101113771A (en) | 2006-07-24 | 2007-07-04 | Automatic transmission |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4770625B2 (en) |
| CN (1) | CN101113771A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832629A (en) * | 2014-02-12 | 2015-08-12 | 福特全球技术公司 | Vehicle Transmission and Method of Assembling Vehicle Transmission |
| CN106104042A (en) * | 2014-03-31 | 2016-11-09 | 爱信艾达株式会社 | Speed change gear |
| CN106574713A (en) * | 2014-07-14 | 2017-04-19 | 马自达汽车株式会社 | Automatic transmission control device |
| CN111699329A (en) * | 2017-12-18 | 2020-09-22 | 法雷奥离合器公司 | Two-part piston for integration into a clutch mechanism |
| CN111795080A (en) * | 2019-04-09 | 2020-10-20 | 法雷奥离合器公司 | Wet clutch mechanism including improved sealing |
| CN112443647A (en) * | 2019-09-02 | 2021-03-05 | 马自达汽车株式会社 | Control device for automatic transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019143708A (en) * | 2018-02-20 | 2019-08-29 | マツダ株式会社 | Automatic transmission |
| JP2019158055A (en) * | 2018-03-15 | 2019-09-19 | マツダ株式会社 | Automatic transmission |
| DE102018130329A1 (en) * | 2018-09-26 | 2020-03-26 | Schaeffler Technologies AG & Co. KG | Coupling device |
| JP2021071152A (en) | 2019-10-30 | 2021-05-06 | アイシン・エィ・ダブリュ株式会社 | Vehicular driving transmission device and vehicle driving device including the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5226517A (en) * | 1992-09-10 | 1993-07-13 | General Motors Corporation | Clutch assembly |
| JP2001032854A (en) * | 1999-07-19 | 2001-02-06 | Exedy Corp | Multiple disc clutch and manufacturing method of core plate of multiple disc clutch |
| JP2003106342A (en) * | 2001-09-28 | 2003-04-09 | Jatco Ltd | Clutch structure of automatic speed change gear |
| DE50302372D1 (en) * | 2003-10-11 | 2006-04-20 | Borgwarner Inc | Hydraulic double clutch |
-
2006
- 2006-07-24 JP JP2006200380A patent/JP4770625B2/en not_active Expired - Fee Related
-
2007
- 2007-07-04 CN CN 200710127134 patent/CN101113771A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832629A (en) * | 2014-02-12 | 2015-08-12 | 福特全球技术公司 | Vehicle Transmission and Method of Assembling Vehicle Transmission |
| CN106104042A (en) * | 2014-03-31 | 2016-11-09 | 爱信艾达株式会社 | Speed change gear |
| CN106104042B (en) * | 2014-03-31 | 2018-07-10 | 爱信艾达株式会社 | Speed change gear |
| CN106574713A (en) * | 2014-07-14 | 2017-04-19 | 马自达汽车株式会社 | Automatic transmission control device |
| CN106574713B (en) * | 2014-07-14 | 2018-10-02 | 马自达汽车株式会社 | The control device of automatic speed variator |
| CN111699329A (en) * | 2017-12-18 | 2020-09-22 | 法雷奥离合器公司 | Two-part piston for integration into a clutch mechanism |
| CN111699329B (en) * | 2017-12-18 | 2022-06-28 | 法雷奥离合器公司 | Two-part piston for integration into a clutch mechanism |
| CN111795080A (en) * | 2019-04-09 | 2020-10-20 | 法雷奥离合器公司 | Wet clutch mechanism including improved sealing |
| CN111795080B (en) * | 2019-04-09 | 2024-06-07 | 法雷奥离合器公司 | Wet clutch mechanism including improved seal |
| CN112443647A (en) * | 2019-09-02 | 2021-03-05 | 马自达汽车株式会社 | Control device for automatic transmission |
| CN112443647B (en) * | 2019-09-02 | 2023-11-28 | 马自达汽车株式会社 | Control device for automatic transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4770625B2 (en) | 2011-09-14 |
| JP2008025753A (en) | 2008-02-07 |
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| PB01 | Publication | ||
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Application publication date: 20080130 |