JPS5817251A - Automatic speed change gear - Google Patents

Abstract

PURPOSE:To enlarge the capacity of a reverse brake by connecting a torque converter housing where a reverse brake is fixed on a sleeve portion to a transmission case. CONSTITUTION:A frictional engaging plate B3 of a reverse brake is fitted in a spline groove 123A of a sleeve portion 123 integral with a torque converter housing 121. A patition wall 122 of the torque converter housing 121 is connected to a transmission case 130. The frictional engaging plate B3 of the reverse brake is operated by a reversing circular cylinder 28 mounted in the torque converter housing 121 and a circular piston 29.

Description

[Detailed description of the invention] It's a b thing.

In recent years, demands for reducing fuel consumption have become increasingly strict.

Cars are equipped with a front engine drive (hereinafter referred to as 1R) with the aim of reducing fuel consumption by making the car smaller and lighter.
There is a remarkable tendency towards standardization. Please respond to this request! ! Multi-stage automatic transmission for cars 1ll% small, lightweight, and easy to install.
#: For horizontal front-wheel drive vehicles with engines, there is a need for short overall lengths with shortened axial dimensions.

In order to satisfy the above requirements, the present invention forms a partition wall between the torque converter housing and the transmigration case integrally with the torque converter housing, and forms an annular cylinder of the reverse brake on the side surface of the transmigration cylinder of the partition wall. death.

In addition, a cylindrical part integral with the converter housing is provided protrudingly, and the friction engagement plate of the reverse brake is fitted into the spline groove formed inside the cylindrical part. The axial dimension can be shortened by eliminating the reverse brake connector that is installed separately between the transmi-fusilon cases or the reverse brake V-da formed inside the transmifusilon case, which is often used in transmifusilon cases. The purpose of the present invention is to provide an automatic transmission in which the thrust force generated by the operation can be canceled out by the bulkhead and the cylindrical part that are integrated with the rukune converter housing, so that the capacity of the reverse valve can be made sufficiently large and the oil seal can be easily achieved. shall be.

The automatic transmission of the present invention includes a hydraulic torque converter, a transmission shifter, and a hydraulic control device.

In the stage-type automatic modification machine, the partition wall between the torque converter chamber and the transmigration chamber through which the output shaft of the torque converter, that is, the input shaft of the transmitter passes through, is formed integrally with the torque converter housing, and the partition wall is formed integrally with the torque converter housing. The annular cylinder of the reverse brake is formed on the transmigration case 1 side 1iK, and on the outer periphery of the annular 5/9 cylinder, there is a converter housing integrally formed with the converter housing (coaxial center with the annular cylinder). A cylindrical portion b to be fitted inside is protruded, and a friction engagement plate of a reverse brake is fitted into the nine splines i11 formed inside the cylindrical portion.

Next, the present invention will be explained based on a fourth embodiment shown in the drawings.

FIG. 1 is a side view of the external appearance of the automatic transmission 1o, FIG. 2 is a sectional view showing its internal structure, and FIG. 3 is a skeleton diagram of the transmission. The automatic transmission 100 is composed of a hydraulic torque converter tOO, an F transmission 100, and a hydraulic control device 40.

The F-transformer scrubber installation 100 includes a first planetary gear set 3, a second planetary gear set 40, and two multi-plate fittings Ct and Cg operated by a hydraulic servo.
, 1 belt brake B1. 2 multi-disc brakes B
2. Transmission device 1 with 3 forward speeds and 7 reverse speeds, including BS, seven one-way latches Ft, and one one-way brake F2
・An underdrive device 60 comprising one multi-disc brake f-04, one multi-disc brake, and seven one-way brakes h operated by a third planetary gear shift 60 and a hydraulic servo. and.

Differential device TO1 and underdo twist device output gear 1
1, a speed reducer S, which is composed of an input gear 9 of a differential device, and a pneumatic gear 8.

The housing 0+ of the automatic transmission is the front housing on the front side (engine side), that is, the upper l1II (hereinafter referred to as "O") front housing in Fig. 2! It is composed of a rear housing 180, a bearing retainer O, and a hydraulic control device cover 16.

The front housing 1!・Ha it! Torque converter housing 1!1 with II (engine side) open.

A cylinder that is a cylindrical front case of the transmission is installed at the rear of the housing heavy gear 1 and is separated by a partition wall between the torque converter chamber and the F transmission chamber. Shabu 1! I, and the output gear 1. of the underdo twist device which is continuously installed adjacent to the side of the torque converter housing 1!10. Idler gear 1, differential gear, front case 1!4, 1 I, I
M is integrally formed.

The rear housing, that is, the F lance case 1s is connected to the rear end of the converter housing 1 by fitting the cylindrical 7-lint case lnK outside,
Case III of a transmission device case 10 having a cylindrical shape and having a rear side wall 111, and an unmed twist device having a cylindrical shape and having a rear side wall 184 continuously adjacent to the side of the case 1m1
and a hydraulic control device cover connection part 111 which is a box body that encloses the differential gear Acaper III, 9 Acase 1 Fu 1 and r-Xlml, and has an opening at the top (left side in Fig. 2). @ and are formed integrally. Is the bearing retainer 140 the above output gear? 1. Idler gear $, differential gear TO each rear case 141,
141 and 14m are integrally formed.

In the housing 11 of the automatic transmission, the front housing 1!・In this embodiment, the bearing retainer 14G is formed in a connecting part with a spigot structure, and the corresponding parts of the front and case 1!4 are connected to each other.
, 1 audience, 1!6, and the rear case 141, 14 Yuki,
14m are fitted and fastened with the bracket A/) 144, thereby forming a differential housing 1 having an output gear chamber 1, an eye dog gear chamber 8, and a differential gear chamber 10 that communicate with each other. , form a torque converter/differential housing which is a strong connecting body between the two. Applicable
The rear housing, ie, transmission V-on case 18, is connected to the rear of the housing 6-O, forming a transmission chamber 10mm and an ametribe device chamber 6mm, and furthermore, the above-mentioned cover connecting portion l The hydraulic control device cover 1 is connected to the bottom to form the automatic transmission housing 11.

Silk converter 鵞・O has a front force connected to the engine output shaft through -3・1, 1 engine output shaft connected to the engine output shaft through the turbine hub. A tubular fixed shaft, that is, a stator shaft, that fits into the center hole 112 of the intermediate support wall 1u through the ! It has a well-known configuration consisting of a stator decoration secured to the turbine hub and a direct coupling clutch connected to the turbine hub. %Ab installed in case 1 to 1.

An annular space formed between the cylindrical protrusion shaft and the fixed shaft 2S is provided around the outer circumferential side of the intermediate support wall, that is, the partition wall 1n, on the torque converter side. A pump body that accommodates a pump gear assembly 1 that is rotatably fitted to the pump body fitting portion SS and is driven by a cylindrical index drive shaft 114 that is integrated with the pump inflator. 91 is an annular thin plate I made of steel μ! It is formed by sandwiching and fastening. The annular thin plate 9z covers nine oil passage grooves formed on the side surface of the torque converter of the partition wall 1, to form an oil passage si, in order to prevent wear of the lundgear.

The transmission chamber 1 has a forward cylindrical rear center support 11 protruding from the center of the rear part 111, and the intermediate support wall 1.
The front center support l has a large diameter and is integrated with the front pipe-like fixed shaft 206 on the central rear surface of n, and has a coaxial center with #dub center support 11! is fixed backwards. The rear centanamate 11 and the tubular fixed shaft! inside O1)μ
The input shaft 1 of the transmission device 1e and the transmission converter 100 is rotatably supported, and a cylindrical first intermediate shaft 3 is rotatably mounted on the outside of the input shaft 1. A cylindrical sun gear axle load is rotatably attached to the front center support l! An output gear 4 of a transmission 10 spline-coupled to the tip of the first intermediate shaft is rotatably supported.

The input shaft 1 of the transmission shaft 1 is an annular hydraulic servo input rotatably fitted to the tip of the forward-facing rear center support 11 at its rear part.
K sp fin is fitted. Center drum for the hydraulic system! 1 is open at the front, and has a rearward facing 10111 & protrusion z11 formed in the middle part, and an annular screw between the inner circumferential wall 21 and the outer circumferential wall II) fitted onto the tip of the rear center 11. The hydraulic servo at of Clara+01 is formed by fitting and feeding the snow and snow, and the ring gear II of the first derailleur gear theft ■,! :Connected. ＠/Pufnetari Gear Set L Capsu A gear 31 provided on the front side of the hydraulic pre-bore CI and formed at the rear end of the sun gear shaft 3.
A planetary carrier spline-coupled to the rear end of the first center shaft, rotatably supported by the ring gear 3 and carrier H connected to the center drum via the multi-disc clutch C1, and a sun gear. s1 and ring gear 3I are meshed with Detsunetarigiar I4 Tokarataru, center dohum snow 1 and 11111m behind! Between r and D, there is an annular hydraulic pump that is rotatably fitted on the rear centana boat 11. s is provided b the rear drum! The front of the inn is open, and an annular piston 4 is fitted between the inner circumferential wall 281 and the outer shoulder wall 281 to increase the hydraulic pressure of the multi-plate craft head. is formed and the outer peripheral wall! s3
The front side of the sun gear s1 of the sun gear shaft 3 is connected to the cylindrical protrusion 11 of the center drum through a multi-plate clutch C3 formed therein, and connected to the front side of the sun gear s1 of the sun gear shaft 3 through a connecting drum 25 connected to the rear end of the outer peripheral wall tSt. is connected to. The connecting drum snow 6 covers the center drum 21 and the first planetary gear set 80, and on the outside of its outer peripheral wall tSt is a friction brake of a bed brake Bl operated by a hydraulic servo (not shown). Plywood 2Is snow is attached.

A front drum screw 6 for hydraulic f-bore which is annular and open at the front is fitted into the rear end of the inner side of the cylindrical front case tZS which is fitted into the rear case 111 on the front side of the connecting drum section.
Two annular pistons are fitted into the front drum 26 to form a hydraulic pressure f of the multi-disc brake Bs. A spline groove is formed on the inner surface of the cylindrical 70-piece case In, and a multi-disc brake B is mounted on the front side of the hydraulic servo B, and a one-way latch F connected to the front side by an outer race fd is mounted. 1. A reverse multi-plate plate V-key Bl, which is the essence of the present invention, is fitted in front of it.

Front housing 1 which is the front wall of the transmission chamber 10m
The rear surface of one intermediate support wall 1n.

The annular hydraulic cylinder which is the gist of the present invention is formed,
The VQn/! 8 is fitted with an annular piston head 9 having a protruding cylindrical pressure transmission ring 91 for pressing the multi-disc brake chest extending rearward from the outer periphery to form a hydraulic servo BS of the play key. There is. A one-way luff F1 is provided on the inside of the V-key chest, and the sun gear shaft $ is the inner race fa, and the outer race fb is connected to the case tss K'' via the brake Bz. A second planetary gear set 4 is provided on the front side.A second planetary gear set 40 is a tenth gear 41 formed at the tip of the sun gear shaft. A planetary carrier 4 is connected to the inner race FE and connected to the front case 1 via a multi-disc brake, and is connected to the output gear 4 and is rotatably supported by the blow gear 41 and the bear carrier 43. ,
It consists of a round gear 44 that meshes with the ring gear 41 and the ring gear 4a.

In the underground pipe device chamber assembly, a forward cylindrical rear center center s1 is provided protruding from the center of the rear side wall 1 and 4.

At the center of the rear case 141 of the output gear, a rearward cylindrical center drum (center drum) 1 is provided, and in the center, an output shaft arm with an output gear arm 1 formed in the front part is located in the output gear chamber 71m. The pair of taper rollers installed are rotatably supported by 9 kg of snow, and are supported on the rear side of the TS output shaft 7 and the rear center. A cylindrical second intermediate shaft 6 is rotatably fitted on the outside of the front center support UK.
Input gear b is rotatably supported.

An annular hydraulic pgn is formed on the front side of the back wall of the Andado' pipe equipment chamber i and mu, and the S/l da s3
An annular piston "tu" having a letter projection 641 for pressing a play key on the outer circumferential side is fitted into the piston "tu" to form a multi-disc brake hydraulic servo 4b4. #Hydraulic piston b
4, the rear end of the intermediate shaft 6 is an inner race fe, and the outer race ff is a one-way pin V- connected to the case 111 via a connecting ring art passing through the letter protrusion 141. A Ki Fs is provided. #Connected ring S
A multi-disc brake is formed inside case III on the front side of S. # On the front side of the one-way pump V-key h, a rearward cylindrical portion S.1 is provided at the intermediate portion and protrudes from the front side, and a hydraulic servo annular drum brocade opened at the front is connected. An annular piston 5 is located between the outer periphery of the drum S@ and the outer surface of the second intermediate shaft.
The cylindrical ring is inserted into the multi-plate quill to form a multi-plate hydraulic pressure 6 [, and the annular drum brocade is attached to the outer peripheral wall s6! It is connected to the third gear carrier (7) through a multi-plate clutch C3, and furthermore, the cylindrical part S@
Case I through a multi-disc brake formed outside 1mK
IIK is connected. There is a third valve on the front side of the hydraulic servo 6s.
A set of 9 gears is provided, and the #3 gear set is a gear set formed at the tip of the #1 intermediate shaft. The gear 6 is spline-fitted to the output shaft and connected to the annular drive gear 5 via the multi-plate clutch C! , the input gear iK is connected to the ring gear 1, and the carrier 6 is rotatably supported and consists of a planetary gear meshed with the gear 1 and the ring gear 6.

A chain 1 cast is stretched between the output gear 4 of the transmission 1 and the underdrive input gear IK, and the chain 16e connects the two in a driving manner. Two notches 161 provided at predetermined positions, two notches provided at predetermined positions of the cylindrical part 1 which is the front case of the transmission, and a predetermined position of the transmission case 13. It passes through the continuous distance 2' formed by the two notches 161 provided in the.

The speed reducer S is formed at the tip of the output shaft, and is rotatably supported in the output gear chamber by a tapered pair of gears.
1, the front case 111 of the idler gear chamber 8m, and the front case 14 of the idler gear chamber 8m are fixed to the snow case and are rotatable on the tapered roller bearing installed on the ninth shaft 8i.
The differential gear chamber 70 is supported by the idler gear S that is supported and meshes with the #output gear arm 1, and the tapered roller bearings 9 and 1.
The rear outer periphery K11) of the defer VyV gear input unit 01 is rotatably supported in the gear input section K11).

The differential gear is a differential gear with a four-way configuration. 01 is the wheel shaft output shaft of the automatic transmission,
It will be installed on Company B.

Transmifusilon 3.0 is a hydraulic system that selectively outputs hydraulic pressure from the hydraulic control device 4110 to each hydraulic pressure depending on vehicle running conditions such as vehicle speed and throttle opening.

It is shown that each clutch and brake O is engaged or released to perform a forward speed change or a reverse speed change. The smart gear (RmNGI) and reduction ratio (
Three examples of RA'l'IO) are shown in Table 1, 'l' and Table 1, respectively.

Table 1 Second example table ■ Third example table 1.1. ! In the figure, O indicates the engaged state, △ indicates the engine key, and × indicates the released state.

Table 1.1 above. The speed is changed as shown in the box, and the output shaft load of the underfip device GO is also the rotation output.

Output gear 1. The rotational speed is reduced to a predetermined speed by the idler gear 8 and the input gear 9 and transmitted to the differential gear 7G,
A wheel shaft 9, which is an output shaft of an automatic transmission 1, is connected to a well-known differential gear.

Drive IB.

As described above, in the automatic transmission of the present invention, the partition wall between the )P converter housing and the V1 case is integrally melted with the torque converter housing, and
A reverse V-key annular cylinder is formed on the transmifusilon side of the partition wall.

Furthermore, a cylindrical part integral with the torque converter housing is provided on the transmission side 5/, and the friction engagement plate of the reverse spring key is fitted into the tin fin groove formed inside the cylindrical part, resulting in a 9 configuration. By doing away with the reverse brake cylinder, which is built separately into the transmission case, or the reverse brake cylinder formed inside the transmission case, which is common in conventional models, the axial dimension can be shortened, and the 9-perth brake can be removed. Since the strain generated by the operation of the hydraulic torque converter housing can be canceled out by the bulkhead and cylindrical part that are integrated with the converter housing, the capacity of the reverse valve can be sufficiently increased, and the torque converter housing and transformer This has the effect that the difference between the Mitsushiran cases can be easily determined.

[Brief explanation of the drawing]

FIG. 1 is a side view of the automatic transmission case according to the present invention;
FIG. 2 is a sectional view showing its internal structure, and FIG. 3 is a skeletal diagram of the transmiffusion.

Claims (1)

[Claims] A multi-stage automatic transmission K which is equipped with a /ME type converter, a converter, a converter, and a hydraulic control device, and has a housing in which the converter case and the torque converter housing can be separated. Since the exit axis of the converter, that is, the human power axis of the converter passes through it, the partition wall between the converter chamber and the transmitter chamber is formed integrally with the converter housing, and the distance is 1! 0) There is a bursp V- on the side of the mirror.
A ring-shaped ygy 〆 is formed. Furthermore, on the outer circumferential side of the chain annular Vlnder, there is a coaxial center with the a annular S/9 ring, and it is integrated with the converter housing!
It is cylindrical II to fit inside the F ring case.
(b) An automatic transmission characterized in that a spline groove (Kl) formed at the center Wk is fitted inside the cylindrical portion, and a friction engagement plate (Kl) is fitted therein. The automatic transmission according to claim 1, wherein an outer race of a first one-way watch is incorporated into the protruding cylindrical portion. 3. The automatic transmission according to claim 1 or 2, characterized in that a second brake lever and a friction engagement plate of the second brake are fitted inside the protruding nine-tube lower part.