JP3470448B2 - Toroidal type continuously variable transmission - Google Patents
Toroidal type continuously variable transmissionInfo
- Publication number
- JP3470448B2 JP3470448B2 JP06969795A JP6969795A JP3470448B2 JP 3470448 B2 JP3470448 B2 JP 3470448B2 JP 06969795 A JP06969795 A JP 06969795A JP 6969795 A JP6969795 A JP 6969795A JP 3470448 B2 JP3470448 B2 JP 3470448B2
- Authority
- JP
- Japan
- Prior art keywords
- intermediate wall
- rib
- toroidal
- continuously variable
- variable transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
- F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
- F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
- F16H2015/383—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces with two or more sets of toroid gearings arranged in parallel
Landscapes
- Friction Gearing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はトロイダル型の無段変速
機において、とくに中間壁の支持構造の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toroidal type continuously variable transmission, and more particularly to improvement of a support structure for an intermediate wall.
【０００２】[0002]
【従来の技術】トロイダル型無段変速機の中間壁の支持
強度を高めるものとして、従来、図５に示すようなもの
がある（特開平３−９２６５５号公報参照）。2. Description of the Related Art Conventionally, there is a toroidal type continuously variable transmission as shown in FIG. 5 (see Japanese Patent Application Laid-Open No. 3-92655) for increasing the supporting strength of an intermediate wall.
【０００３】このトロイダル無段変速機は、２組のトロ
イダル変速機構１，２を同軸上に配置し、入力トルクを
２つのトロイダル変速機構１，２で分担して受け持たせ
ることにより、小型でありながら、大きなトルク伝達を
可能としたもので、２組のトロイダル変速機構１，２の
中間に配置したギヤ列３を経由して変速した回転トルク
を取り出すようになっている。This toroidal continuously variable transmission is small in size by arranging two sets of toroidal transmissions 1 and 2 coaxially and sharing the input torque between the two toroidal transmissions 1 and 2. In spite of this, a large torque can be transmitted, and the rotational torque that has been shifted is taken out via a gear train 3 arranged in the middle of the two sets of toroidal transmissions 1 and 2.
【０００４】一方のトロイダル変速機構１の入力ディス
ク４ａと、他方のトロイダル変速機構２の入力ディスク
５ａとは、同一の入力軸７により同一的に回転駆動され
る。また、入力ディスク４ａに対峙する出力ディスク４
ｂと、他方の入力ディスク５ａに対峙する出力ディスク
５ｂとの間には、それぞれ図示しない摩擦ごまが介在さ
れ、この摩擦ごまの傾転角に応じて入力ディスク４ａ，
５ａの回転が出力ディスク４ｂ，５ｂに変速されて伝達
される。The input disk 4a of one toroidal speed change mechanism 1 and the input disk 5a of the other toroidal speed change mechanism 2 are rotationally driven by the same input shaft 7 in the same manner. In addition, the output disk 4 facing the input disk 4a
b and an output disc 5b facing the other input disc 5a, friction sesame (not shown) is interposed respectively, and the input discs 4a, 4a,
The rotation of 5a is speed-changed and transmitted to the output disks 4b and 5b.
【０００５】出力ディスク４ｂ，５ｂは共通の中空軸８
に固定され、中空軸８は前記入力軸７の外周に同軸的に
配設される。この中空軸８には、出力ディスク４ｂ，５
ｂの間において駆動ギヤ９が固定され、この駆動ギヤ９
と噛み合う従動ギヤ１０により前記ギヤ列３が構成さ
れ、出力ディスク４ｂ，５ｂの回転が従動ギヤ１０を固
定した出力軸１１に伝達される。The output disks 4b and 5b have a common hollow shaft 8.
The hollow shaft 8 is coaxially arranged on the outer periphery of the input shaft 7. The hollow shaft 8 has output disks 4b, 5
The drive gear 9 is fixed between b and the drive gear 9
The gear train 3 is configured by the driven gear 10 that meshes with the rotation of the output disks 4b and 5b, and the rotation of the output discs 4b and 5b is transmitted to the output shaft 11 to which the driven gear 10 is fixed.
【０００６】ところで、このギヤ列３を構成する駆動ギ
ヤ９及び従動ギヤ１０を支持するために、変速機ハウジ
ング１２の一部と連結した中間壁１３が設けられ、それ
ぞれ軸受１４ａと１４ｂにより駆動ギヤ９と従動ギヤ１
０を回転自由に支持している。By the way, in order to support the drive gear 9 and the driven gear 10 constituting the gear train 3, an intermediate wall 13 connected to a part of the transmission housing 12 is provided, and the drive gears are provided by bearings 14a and 14b, respectively. 9 and driven gear 1
0 is freely supported.
【０００７】この場合、中間壁１３の支持剛性を確保す
るために、中間壁１３は２つのカバー１３ａ，１３ｂを
組み合わせて構成し、かつ中間壁１３に近接している部
材、例えばシリンダボディ１５にＬ字型のガセット１６
により、ボルト１７，１８を介して結合している。In this case, in order to secure the support rigidity of the intermediate wall 13, the intermediate wall 13 is formed by combining two covers 13a and 13b, and a member close to the intermediate wall 13 such as a cylinder body 15 is provided. L-shaped gusset 16
Are coupled via the bolts 17 and 18.
【０００８】なお、シリンダボディ１５は前記した摩擦
ごまを油圧により傾転駆動するためのサーボピストンを
収装しており、変速機ハウジング１２の一部に固設され
ている。The cylinder body 15 accommodates a servo piston for tilt-driving the above-mentioned friction sesame by hydraulic pressure, and is fixed to a part of the transmission housing 12.
【０００９】[0009]
【発明が解決しようとする課題】ところが、中間壁１３
の支持剛性について、Ｌ字型のガセット１６による補強
だけでは、必ずしも十分ではなく、中間壁１３のたわ
み、振動等により、駆動ギヤ９と従動ギヤ１０とが偏当
たりし、ギヤノイズも増大しやすいという問題があっ
た。However, the intermediate wall 13
Regarding the support rigidity of the above, it is not always sufficient to reinforce by the L-shaped gusset 16, and the drive gear 9 and the driven gear 10 are eccentrically abutted due to the bending and vibration of the intermediate wall 13, and the gear noise is likely to increase. There was a problem.
【００１０】また、制作上の点からは、中間壁１３をＬ
字型のガセット１６により近接部材１５に固定してるの
で、部品点数が増え、しかも、ガセット１６はボルト１
７，１８により中間壁１３と近接部材１５との両方に締
結する必要があるため、組立が面倒で、かつ組立工数も
増えるという問題があった。From the production point of view, the intermediate wall 13 is L
Since the gusset 16 is fixed to the proximity member 15 by the V-shaped gusset 16, the number of parts is increased.
Since it is necessary to fasten both the intermediate wall 13 and the proximity member 15 by means of Nos. 7 and 18, the assembly is troublesome and the number of assembling steps is increased.
【００１１】本発明は組立工数やそれほど増やすことな
く中間壁の支持剛性を高め、このような問題を解決する
ことを目的とする。[0011] The present invention enhances the support rigidity of the intermediate wall without increasing the number of assembly steps and so aims to solve this problem.
【００１２】[0012]
【課題を解決するための手段】第１の発明は、２組のト
ロイダル変速機構を同軸上に備え、これらの中間に配置
した中間壁に出力回転取り出し用のギヤ列を支持したト
ロイダル型無段変速機において、変速機ハウジングに一
部が固定されると共に前記中間壁に近接する固定部材に
一体にリブを設け、このリブに中間壁を結合し、前記リ
ブを設けた固定部材が、トロイダル変速機構のシリンダ
ボディである。A first aspect of the present invention is a toroidal type continuously variable transmission having two sets of toroidal speed change gears coaxially arranged, and an intermediate wall arranged in the middle of the two toroidal speed change gears supporting a gear train for output rotation extraction. In the transmission, a rib is integrally provided on a fixing member that is partially fixed to the transmission housing and is close to the intermediate wall, and the intermediate wall is coupled to the rib to form the rib.
The fixing member with the tab is the cylinder of the toroidal speed change mechanism.
It is a body .
【００１３】[0013]
【００１４】第２の発明は、第１の発明において、前記
リブはギヤ列の軸心について概略左右対称に少なくとも
一対の張り出し部が形成される。In a second aspect based on the first aspect , the rib is formed with at least a pair of projecting portions which are substantially symmetrical about the axis of the gear train.
【００１５】第３の発明は、第２の発明において、前記
リブは中間壁に向けて起立形成され、かつ前記軸心と垂
直な接合面をもち、この接合面を中間壁の側面に接合し
てボルトを介して締結される。In a third aspect based on the second aspect , the rib is formed so as to stand upright toward the intermediate wall and has a joint surface perpendicular to the axis, and the joint surface is joined to a side surface of the intermediate wall. Are fastened via bolts.
【００１６】[0016]
【作用】第１の発明では、変速機ハウジングに連結する
固定部材に一体に設けたリブに中間壁を結合するので、
中間壁の剛性が高まり、ギヤ列のギヤの偏当たり等を防
止し、ギヤノイズを低下させられる。In the first aspect of the invention, since the intermediate wall is connected to the rib integrally provided with the fixing member connected to the transmission housing,
The rigidity of the intermediate wall is increased, uneven contact of gears in the gear train is prevented, and gear noise is reduced.
【００１７】また、リブと中間壁とはボルト等により結
合するが、リブそのものは近接する固定部材に一体形成
されるので、ボルトの締結工数が減る。なお、リブを中
間壁に設けた場合には、中間壁の組み付け時に、中間壁
の周囲の部材と干渉しやすく、組立性を損なう恐れがあ
るが、近接固定部材にリブを形成することにより、作業
性が改善される。Further, although the rib and the intermediate wall are connected by a bolt or the like, since the rib itself is integrally formed with a fixing member which is close to the rib, the number of bolt fastening steps is reduced. When the rib is provided on the intermediate wall, when the intermediate wall is assembled, it is easy to interfere with a member around the intermediate wall, which may impair the assemblability, but by forming the rib on the proximity fixing member, Workability is improved.
【００１８】そして、リブを変速機ハウジングに対して
しっかりと固定されるシリンダボディに設けたので、中
間壁の支持剛性が高まり、しかもシリンダボディは要求
位置決め精度が高いので、リブの位置誤差も少なく、中
間壁との結合精度が高められる。Further , since the rib is provided on the cylinder body which is firmly fixed to the transmission housing, the supporting rigidity of the intermediate wall is increased and the required positioning accuracy of the cylinder body is high, so that the position error of the rib is small. , The accuracy of coupling with the intermediate wall is improved.
【００１９】第２の発明では、リブはギヤ列の軸心に対
して概略左右対称に設けられるので、ギヤ列を介して中
間壁にかかるよじりトルクに対する剛性が高まる。In the second aspect of the invention, the ribs are provided substantially symmetrically with respect to the shaft center of the gear train, so that the rigidity with respect to the twisting torque applied to the intermediate wall via the gear train is increased.
【００２０】第３の発明では、リブは中間壁に向けて起
立すると共に、ギヤ列の軸心と垂直な接合面により中間
壁に接合するので、中間壁の側面方向への倒れに対する
剛性が高く、中間壁の面振動を抑制し、騒音の低減が図
れる。According to the third aspect of the invention, the ribs stand upright toward the intermediate wall and are joined to the intermediate wall by a joining surface perpendicular to the axis of the gear train, so that the rigidity of the intermediate wall against tilting in the lateral direction is high. The surface vibration of the intermediate wall can be suppressed and the noise can be reduced.
【００２１】[0021]
【実施例】図１〜図３を参照しながら実施例を説明す
る。EXAMPLE An example will be described with reference to FIGS.
【００２２】図１は全体構成を骨格図で、このトロイダ
ル型無段変速機は、２組のトロイダル変速機構１，２を
同軸上に配置し、一方のトロイダル変速機構１の入力デ
ィスク４ａと、他方のトロイダル変速機構２の入力ディ
スク５ａとは、同一の入力軸７により同一的に回転駆動
される。また、入力ディスク４ａに対峙する出力ディス
ク４ｂと、他方の入力ディスク５ａに対峙する出力ディ
スク５ｂとの間には、それぞれ摩擦ごま６ａ，６ｂが介
在され、この摩擦ごま６ａ，６ｂの傾転角に応じて入力
ディスク４ａ，５ａから出力ディスク４ｂ，５ｂへと伝
達される回転が変速される。FIG. 1 is a skeleton view of the overall structure. In this toroidal type continuously variable transmission, two sets of toroidal transmission mechanisms 1 and 2 are coaxially arranged, and an input disk 4a of one toroidal transmission mechanism 1 is provided. The input disk 5a of the other toroidal speed change mechanism 2 is rotationally driven by the same input shaft 7 in the same manner. Further, friction sesame 6a, 6b is respectively interposed between the output disc 4b facing the input disc 4a and the output disc 5b facing the other input disc 5a. Accordingly, the rotation transmitted from the input disks 4a, 5a to the output disks 4b, 5b is changed.
【００２３】出力ディスク４ｂ，５ｂは共通の中空出力
軸８に固定され、中空軸８は前記入力軸７の外周に同軸
的に配設される。この中空軸８には、出力ディスク４
ｂ，５ｂの間において、駆動ギヤ９が固定され、この駆
動ギヤ９と噛み合う従動ギヤ１０により前記ギヤ列３が
構成され、出力ディスク４ｂ，５ｂの回転が出力軸１１
に伝達される。The output disks 4b and 5b are fixed to a common hollow output shaft 8, and the hollow shaft 8 is coaxially arranged on the outer circumference of the input shaft 7. The output shaft 4 is attached to the hollow shaft 8.
The drive gear 9 is fixed between b and 5b, the driven gear 10 meshing with the drive gear 9 constitutes the gear train 3, and the rotation of the output disks 4b and 5b is controlled by the output shaft 11
Be transmitted to.
【００２４】前記入力軸７には、トルクコンバータ２１
からの回転が前後進切換機構２２を介して入力する。ま
た、出力軸１１の回転はトルク伝達機構２３を介してプ
ロペラシャフト２４に伝達される。A torque converter 21 is attached to the input shaft 7.
Is input via the forward / reverse switching mechanism 22. The rotation of the output shaft 11 is transmitted to the propeller shaft 24 via the torque transmission mechanism 23.
【００２５】なお、１９は入力ディスク４ａ，５ａと出
力ディスク４ｂ，５ｂとの間に挟み込む摩擦ごま６ａ，
６ｂのトルク伝達のため、入力ディスク４ａを軸方向に
押圧するローディングカム機構である。Reference numeral 19 designates a friction sesame 6a which is sandwiched between the input discs 4a and 5a and the output discs 4b and 5b.
A loading cam mechanism that axially presses the input disk 4a for transmitting the torque of 6b.
【００２６】そして、図２、図３にも示すように、前記
ギヤ列３を構成する、はすば歯車からなる、駆動ギヤ９
及び従動ギヤ１０を支持するために、変速機ハウジング
１２の一部と連結した中間壁１３が設けられ、それぞれ
軸受１４ａと１４ｂにより駆動ギヤ９と従動ギヤ１０を
回転自由に支持している。As shown in FIGS. 2 and 3, the drive gear 9 which is a helical gear and constitutes the gear train 3 is formed.
Also, in order to support the driven gear 10, an intermediate wall 13 connected to a part of the transmission housing 12 is provided, and bearings 14a and 14b respectively support the drive gear 9 and the driven gear 10 in a freely rotatable manner.
【００２７】中間壁１３はギヤ列３を内装する２つのカ
バー１３ａ，１３ｂを組み合わせて構成し、かつ中間壁
１３に近接している固定部材、例えばシリンダボディ１
５に一体に設けたリブ２７に対して、ボルト２８により
結合している。The intermediate wall 13 is formed by combining two covers 13a and 13b in which the gear train 3 is installed, and is a fixing member close to the intermediate wall 13, such as the cylinder body 1.
The ribs 27 formed integrally with the member 5 are connected by bolts 28.
【００２８】リブ２７はシリンダボディ１５の底面から
起立して形成され、中間壁１３の側面と平行な垂直に形
成した接合面２７ａをもち、この接合面２７ａを中間壁
１３に接合した状態で一対のボルト２８により結合され
る。The rib 27 is formed so as to stand upright from the bottom surface of the cylinder body 15 and has a joining surface 27a formed vertically and parallel to the side surface of the intermediate wall 13, and the joining surface 27a is joined to the intermediate wall 13 in a pair. Are connected by bolts 28.
【００２９】リブ２７は図３にも示すように、従動ギヤ
１０が取付けられる出力軸１１の軸心に対して左右対称
に形成された２つの張り出し部２７ｂにおいて、一対の
ボルト２８，２８により中間壁１３と結合される。ただ
し、対称位置に設ける張り出し部２７ｂの数は、必要に
応じてさらに増やすこともできる。As shown in FIG. 3, the rib 27 has two protrusions 27b formed symmetrically with respect to the axis of the output shaft 11 to which the driven gear 10 is attached. Combined with the wall 13. However, the number of the projecting portions 27b provided at symmetrical positions can be further increased as necessary.
【００３０】なお、シリンダボディ１５は摩擦ごま６
ａ，６ｂを油圧により傾転駆動するためのピストンを収
装しており、変速機ハウジング１２に対してしっかりと
固設されている。The cylinder body 15 has a friction sesame 6
A piston for tilting and driving a and 6b by hydraulic pressure is housed therein, and is firmly fixed to the transmission housing 12.
【００３１】以上のように構成され、次に作用について
説明する。With the above construction, the operation will be described below.
【００３２】ギヤ列３を内装した中間壁１３は、その下
端の中央部において、シリンダボディ１５に一体的に設
けたリブ２７にボルト２８を介して結合され、かつリブ
２７は従動ギヤ１０の軸心について左右に位置する張り
出し部２７ｂを備え、中間壁１３を強固に支持するた
め、中間壁１３の支持剛性が高まり、中間壁１３に支持
された駆動ギヤ９と従動ギヤ１０の噛み合いを円滑に維
持し、ギヤの偏当たりを抑制し、ギヤノイズを低減でき
る。The intermediate wall 13 in which the gear train 3 is mounted is connected at its lower end central portion to a rib 27 integrally provided on the cylinder body 15 via a bolt 28, and the rib 27 is the shaft of the driven gear 10. Since the center wall 13 is provided with the overhanging portions 27b that are located on the left and right and the intermediate wall 13 is strongly supported, the support rigidity of the intermediate wall 13 is increased, and the meshing of the drive gear 9 and the driven gear 10 supported by the intermediate wall 13 is smoothly performed. It is possible to maintain, suppress uneven contact of gears, and reduce gear noise.
【００３３】また、この場合、リブ２７の張り出し部２
７ｂはギヤ列３の各軸心に対して左右対称に設けられる
ので、ギヤ列３を介して中間壁１３にかかるよじりトル
クに対する剛性が高まり、さらに、リブ２７は中間壁１
３に向けて起立すると共に、垂直な接合面２７ａにより
中間壁１３の側面に接合するので、中間壁１３の側方へ
の倒れに対する剛性も強まり、これらにより、中間壁１
３の面振動を抑制して騒音の低減が図れる。Further, in this case, the protruding portion 2 of the rib 27 is
Since 7b is provided symmetrically with respect to each axis of the gear train 3, the rigidity with respect to the twisting torque applied to the intermediate wall 13 via the gear train 3 is increased, and the rib 27 is provided in the intermediate wall 1.
3 and is joined to the side surface of the intermediate wall 13 by the vertical joining surface 27a, the rigidity against the sideways leaning of the intermediate wall 13 is also increased.
The surface vibration of No. 3 can be suppressed to reduce noise.
【００３４】図４は中間壁１３の振動加速度の計測結果
を、本発明と従来のものとを比較して示すもので、とく
に回転数の高い領域において、明らかに本発明の振動が
減衰していることが理解できる。FIG. 4 shows the measurement results of the vibration acceleration of the intermediate wall 13 comparing the present invention with the conventional one. It is apparent that the vibration of the present invention is attenuated particularly in a region where the rotational speed is high. Understand that
【００３５】また、リブ２７と中間壁１３とは一対のボ
ルト２８により結合されるだけで、リブ２７そのものは
シリンダボディ１５に一体形成されるので、部品点数が
削減できると共に、組立時のボルト締結工数が減る。な
お、もしリブ２７を中間壁１３に設けた場合には、中間
壁１３の組み付け時に、中間壁１３の周囲の部材と干渉
しやすく、組立性を損なう恐れがあるが、予めシリンダ
ボディ１５リブを設けておくことにより、良好な組み付
け作業性が維持される。Further, the rib 27 and the intermediate wall 13 are simply joined by a pair of bolts 28, and the rib 27 itself is
Since it is formed integrally with the cylinder body 15, the number of parts can be reduced and the number of bolt fastening steps at the time of assembly can be reduced. Incidentally, if the case where a rib 27 in the intermediate wall 13, during assembly of the intermediate wall 13, tends to interfere with surrounding members of the intermediate wall 13, but may impair assembling properties, previously cylinder <br/> By providing the body 15 ribs, good assembly workability is maintained.
【００３６】リブ２７を、変速機ハウジング１２に対す
る結合剛性の高いシリンダボディ１５に設けたので、そ
の分だけ中間壁１３の支持剛性も高まり、しかもシリン
ダボディ１５は要求位置決め精度が高いので、それだけ
リブ２７の位置誤差も小さくなり、中間壁１３との結合
精度が高められる。Since the ribs 27 are provided on the cylinder body 15 having a high coupling rigidity with the transmission housing 12, the supporting rigidity of the intermediate wall 13 is correspondingly increased, and the cylinder
Since Da body 15 has a high demand positioning accuracy, correspondingly also reduced the position error of the ribs 27, coupling precision between the intermediate wall 13 is enhanced.
【００３７】また一方、中間壁１３に結合したリブ２７
により、ギヤの噛合い、軸受の回転摩擦により発生する
熱を、外部に放出する働きもあり、放熱性も改善され
る。On the other hand, the rib 27 connected to the intermediate wall 13
As a result, the heat generated by the meshing of the gears and the rotational friction of the bearing is also released to the outside, and the heat dissipation is also improved.
【００３８】[0038]
【発明の効果】第１の発明によれば、変速機ハウジング
に連結する固定部材に一体に設けたリブに中間壁を結合
し、中間壁の支持剛性を高めるので、中間壁のたわみや
振動が抑制され、中間壁に支持されるギヤ列のギヤの偏
当たりやギヤノイズを低下させられる一方、リブと中間
壁とはボルト等により結合するが、リブそのものは近接
する固定部材に予め一体に形成されるので、ボルトの締
結工数、部品点数が削減でき、生産性も改善される。According to the first aspect of the invention, since the intermediate wall is connected to the rib integrally provided with the fixing member connected to the transmission housing, and the supporting rigidity of the intermediate wall is increased, the bending and vibration of the intermediate wall are prevented. The ribs and the intermediate wall are connected to each other by bolts or the like, while the ribs themselves are formed integrally with the adjacent fixing member in advance. Therefore, the number of bolt fastening steps and the number of parts can be reduced, and the productivity can be improved.
【００３９】そして、リブを変速機ハウジングに対して
しっかりと固定されるシリンダボディに設けたので、中
間壁の支持剛性が高まり、しかもシリンダボディは要求
位置決め精度が高いので、リブの位置誤差も少なく、中
間壁との結合精度が高められる。Since the rib is provided on the cylinder body which is firmly fixed to the transmission housing, the supporting rigidity of the intermediate wall is increased, and the required positioning accuracy of the cylinder body is high, so that the rib position error is small. , The accuracy of coupling with the intermediate wall is improved.
【００４０】第２の発明によれば、リブはギヤ列の軸心
に対して概略左右対称に設けられるので、ギヤ列を介し
て中間壁にかかるよじりトルクに対する剛性が高まり、
中間壁の振動を抑制できる。According to the second invention, since the ribs are provided substantially symmetrically with respect to the axis of the gear train, the rigidity against the twisting torque applied to the intermediate wall via the gear train is increased,
Vibration of the intermediate wall can be suppressed.
【００４１】第３の発明によれば、リブは中間壁に向け
て起立すると共に、ギヤ列の軸心と垂直な接合面により
中間壁に接合するので、中間壁の側面方向への倒れに対
する剛性が高まり、中間壁の面振動を抑制し、騒音の低
減が図れる。According to the third aspect of the invention, the rib stands up toward the intermediate wall and is joined to the intermediate wall by the joint surface perpendicular to the axis of the gear train. Therefore, the rigidity against the inclination of the intermediate wall in the lateral direction is obtained. It is possible to suppress the surface vibration of the intermediate wall and reduce noise.
【図１】本発明の実施例を骨格図である。FIG. 1 is a skeleton diagram of an embodiment of the present invention.
【図２】同じくその縦断面図である。FIG. 2 is a vertical sectional view of the same.
【図３】同じくその横断面図である。FIG. 3 is a cross sectional view of the same.
【図４】中間壁の振動特性を従来例と比較して示す説明
図である。FIG. 4 is an explanatory diagram showing vibration characteristics of an intermediate wall in comparison with a conventional example.
【図５】従来例の断面図である。FIG. 5 is a cross-sectional view of a conventional example.
１ トロイダル変速機構 ２ トロイダル変速機構 ３ ギヤ列 ９ 駆動ギヤ １０ 従動ギヤ １１ 出力軸 １２ 変速機ハウジング １３ 中間壁 １５ シリンダボディ ２７ リブ ２７ａ 接合面 ２７ｂ 張り出し部 ２８ ボルト1 Toroidal speed change mechanism 2 Toroidal speed change mechanism 3 Gear train 9 Drive gear 10 Driven gear 11 Output shaft 12 Transmission housing 13 Intermediate wall 15 Cylinder body 27 Rib 27a Joint surface 27b Overhanging portion 28 Bolt
フロントページの続き (56)参考文献 特開 平３−92655（ＪＰ，Ａ) 特開 平６−17915（ＪＰ，Ａ) 特開 平６−280985（ＪＰ，Ａ) 特開 平４−29659（ＪＰ，Ａ) 杉田 稔，現場で役立つ機械設計の勘 どころ，日本，日刊工業新聞社，1975年 11月30日，第８版，201−204 (58)調査した分野(Int.Cl.7，ＤＢ名) F16H 15/38 Continuation of front page (56) Reference JP-A-3-92655 (JP, A) JP-A-6-17915 (JP, A) JP-A-6-280985 (JP, A) JP-A-4-29659 (JP , A) Minoru Sugita, Tips for useful machine design in the field, Nikkan Kogyo Shimbun, Japan, November 30, 1975, 8th edition, 201-204 (58) Fields investigated (Int.Cl. 7 , DB) Name) F16H 15/38
Claims (3)
え、これらの中間に配置した中間壁に出力回転取り出し
用のギヤ列を支持したトロイダル型無段変速機におい
て、 変速機ハウジングに一部が固定されると共に前記中間壁
に近接する固定部材に一体にリブを設け、このリブに中
間壁を結合し、 前記リブを設けた固定部材が、トロイダル変速機構のシ
リンダボディであることを特徴とする トロイダル型無段
変速機。1. A toroidal type continuously variable transmission in which two sets of toroidal transmission mechanisms are coaxially provided, and an intermediate wall arranged in the middle of the two toroidal transmission mechanisms supports a gear train for output rotation extraction, and a part of the transmission housing. A rib is provided integrally with a fixing member that is fixed to the intermediate wall and is adjacent to the intermediate wall, the intermediate wall is coupled to this rib, and the fixing member provided with the rib is a system of the toroidal transmission mechanism.
A toroidal continuously variable transmission characterized by a Linda body .
対称に少なくとも一対の張り出し部が形成される請求項
１に記載のトロイダル型無段変速機。 2. The ribs are roughly left and right with respect to the axis of the gear train.
The at least one pair of projecting portions are formed symmetrically.
The toroidal type continuously variable transmission described in 1.
かつ前記軸心と垂直な接合面をもち、この接合面を中間
壁の側面に接合してボルトを介して締結される請求項２
に記載のトロイダル型無段変速機。 3. The rib is formed upright toward the intermediate wall,
Also, it has a joint surface perpendicular to the axis, and this joint surface is intermediate
3. The structure is joined to a side surface of a wall and fastened via a bolt.
The toroidal type continuously variable transmission described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06969795A JP3470448B2 (en) | 1995-03-28 | 1995-03-28 | Toroidal type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06969795A JP3470448B2 (en) | 1995-03-28 | 1995-03-28 | Toroidal type continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08270746A JPH08270746A (en) | 1996-10-15 |
| JP3470448B2 true JP3470448B2 (en) | 2003-11-25 |
Family
ID=13410319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06969795A Expired - Fee Related JP3470448B2 (en) | 1995-03-28 | 1995-03-28 | Toroidal type continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3470448B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59804439D1 (en) * | 1997-07-25 | 2002-07-18 | Zahnradfabrik Friedrichshafen | CONTINUOUSLY FRICTION GEARBOX |
-
1995
- 1995-03-28 JP JP06969795A patent/JP3470448B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 杉田 稔，現場で役立つ機械設計の勘どころ，日本，日刊工業新聞社，１９７５年１１月３０日，第８版，２０１−２０４ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08270746A (en) | 1996-10-15 |
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