JPH0650143B2 - Drive plate for fluid torque converter - Google Patents
Drive plate for fluid torque converterInfo
- Publication number
- JPH0650143B2 JPH0650143B2 JP63110086A JP11008688A JPH0650143B2 JP H0650143 B2 JPH0650143 B2 JP H0650143B2 JP 63110086 A JP63110086 A JP 63110086A JP 11008688 A JP11008688 A JP 11008688A JP H0650143 B2 JPH0650143 B2 JP H0650143B2
- Authority
- JP
- Japan
- Prior art keywords
- fitting
- wall
- torque converter
- drive plate
- disk
- 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
Landscapes
- Forging (AREA)
- Mechanical Operated Clutches (AREA)
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、駆動軸と車輪駆動用の流体トルクコンバータ
とを接続するためのドライブプレートにおける軸嵌合部
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft fitting portion in a drive plate for connecting a drive shaft and a wheel-driving fluid torque converter.
（従来の技術） 従来、自動者用の流体トルクコンバータにおいては、ド
ライブプレートを構成する円板と駆動軸の同心性を確保
するため円板に印籠状の軸嵌合部が設けられており、該
軸嵌合部の形成手段としては、特公昭59-20407に示され
るプレス加工による成形手段があった。(Prior Art) Conventionally, in a fluid torque converter for an automatic operator, in order to ensure the concentricity of the drive plate and the disc constituting the drive plate, a disc-shaped shaft fitting portion is provided on the disc. As a means for forming the shaft fitting portion, there is a forming means by press working shown in Japanese Patent Publication No. 59-20407.
この従来技術においては、まず円板の中央部を１対の金
型で半球状に湾曲させ、次に別の金型で半球面の中央部
を逆方向に反転して断面山形の環状隆起を形成し、３回
目に更に別の金型で該環状隆起を整形して軸嵌合部を最
終の寸法、形状にすると共に、組織の緻密化と増肉を行
なっている。そして、成形加工を繰返すため材料表面の
凹凸が大きく、クランクシャフト取付面の平坦を出すた
めに切削加工が必要となる。In this conventional technique, the central part of the disk is first curved into a hemispherical shape by a pair of molds, and then the central part of the hemispherical surface is reversed in another mold to form an annular ridge having a chevron cross section. After the formation, the annular ridge is shaped by a third mold for the third time to make the shaft fitting portion into the final size and shape, and the tissue is densified and thickened. Then, since the molding process is repeated, the unevenness of the material surface is large, and the cutting process is required to make the crankshaft mounting surface flat.
第４図(a)(b)は、この従来の製法による円板を示すもの
で、円板ａには環状隆起部ｂが突設されてその内面に軸
嵌合面ｃが形成されている。同図においてｄは円板ａを
軸端面に固定するための取付穴、ｅは円板ａをトルクコ
ンバータのポンプの如き連動部材に固定するための取付
穴、ｆは軽量化のための穴で全面に多数設けられてい
る。FIGS. 4 (a) and 4 (b) show a disk produced by this conventional manufacturing method. An annular ridge b is projected on the disk a and a shaft fitting surface c is formed on the inner surface thereof. . In the figure, d is a mounting hole for fixing the disk a to the shaft end surface, e is a mounting hole for fixing the disk a to an interlocking member such as a pump of a torque converter, and f is a hole for weight reduction. Many are provided on the entire surface.
そして、この円板ａは、第５図に示すようにエンジンか
ら出る駆動軸Ａの端部に軸嵌合面ｃによって嵌合してボ
ルトＢ１で固定され、外周の取付穴ｅとボルトＢ２によ
ってトルクコンバータＴのポンプＰに連結ており、入力
軸Ａのトルクで、円板ａ、トルクコンバータＴを経て出
力軸Ｄを駆動するようになっている。As shown in FIG. 5, the disk a is fitted to the end portion of the drive shaft A coming out of the engine by the shaft fitting surface c and fixed by the bolt B 1 , and the mounting hole e on the outer periphery and the bolt B are fixed. The output shaft D is driven by the torque of the input shaft A through the disc a and the torque converter T by means of the torque converter 2a.
（発明が解決しようとする課題） 前記の従来技術においては、軸嵌合部を３種類の金型に
よって成形するため、工程が複雑であると共に金型費が
嵩み、かつ冷間成形によるときは加工硬化が生じるため
材料が劣化し、使用時に加わるトルク及び流体の遠心力
のアンバランスによって生じる径方向の力の変動が、繰
返し応力として作用するため疲労が生じ易い。その上、
このような手段では大きい嵌合深さをもつ軸嵌合部を作
ることは困難である。(Problems to be Solved by the Invention) In the above-mentioned prior art, since the shaft fitting portion is molded by three types of molds, the process is complicated, the mold cost is high, and cold molding is required. The material is deteriorated due to work hardening, and the variation of the radial force caused by the imbalance between the torque applied at the time of use and the centrifugal force of the fluid acts as repetitive stress, so that fatigue easily occurs. Moreover,
It is difficult to make a shaft fitting portion having a large fitting depth by such means.
また、プレス成形後の材料板厚の凹凸量がクランクシャ
フト取付面で大きくなるために、切削によって平坦にす
る必要がある。その結果、取付面の板厚が薄くなり、製
品強度に問題を起こす可能性がある。Further, since the unevenness of the material plate thickness after press forming becomes large on the crankshaft mounting surface, it is necessary to flatten it by cutting. As a result, the plate thickness of the mounting surface becomes thin, which may cause a problem in product strength.
そして、成形工程が３工程で工程数が多いため、プレス
加工の特性として、円板の取付部のセンタの精度が低く
クランクシャフトと芯ずれを起こしやすく、製品バラン
スが悪いためバランス穴の追加工程が必要となる。Since the number of forming processes is three, which is a large number of processes, the precision of the center of the mounting portion of the disk is low and the misalignment with the crankshaft is liable to occur as a characteristic of the press work, and the product balance is poor, so an additional process of adding balance holes Is required.
（課題を解決するための手段） 本発明は、１回の成形加工によって強度の大きい軸嵌合
部を作るようにしたもので、その手段は、円板の中央部
に、円板を駆動軸の端面に固定するための複数個の固定
穴と、駆動軸の外周面に嵌合する嵌合壁とを備え、円板
の外周にポンプ連結部を備えた流体トルクコンバータ用
ドライブプレートにおいて、同一円周に沿って点在させ
た複数個の嵌合突起を設け、該嵌合突起の嵌合壁を、円
板の一部をしごき曲げして立上げると共に、嵌合突起の
頂壁に押込み凹部を設けて壁肉の一部を該嵌合壁の端部
に押出して増肉して形成したことを特徴とする。(Means for Solving the Problem) In the present invention, a shaft fitting portion having a high strength is formed by a single molding process. In the drive plate for a fluid torque converter, which has a plurality of fixing holes for fixing to the end face of the drive shaft and a fitting wall which fits to the outer peripheral face of the drive shaft, and which has a pump connecting portion on the outer periphery of the disc, A plurality of fitting protrusions scattered along the circumference are provided, and the fitting wall of the fitting protrusions is erected by partially bending the disk to start it up, and is pushed into the top wall of the fitting protrusion. It is characterized in that a recess is provided and a part of the wall thickness is extruded to the end of the fitting wall to increase the thickness.
（作用） 前記の嵌合突起における嵌合壁は、円板から曲げを主体
とするしごき成形によって突出しているから、加工硬化
及びこれによる材質劣化は少なく、また、該嵌合突起の
頂壁の肉が嵌合壁に押出されているから、該嵌合壁は必
要な高さに形成される。(Operation) Since the fitting wall of the fitting projection is projected from the disk by ironing mainly for bending, work hardening and material deterioration due to it are small, and the top wall of the fitting projection is small. Since the meat is extruded into the mating wall, the mating wall is formed at the required height.
（実施例） 以下図面に基づいて実施例を説明する。第１図、第２図
において１はドライブプレートで鋼製の円板からなるも
のである。２は軸嵌合部で、中央のくり抜き穴の周囲に
軸端面取付部３を有し、ここに位置決めピン穴４と数個
の取付穴５が穿設され、更にその周囲に環状で断面山形
又は円弧状の緩衝部６が形成されている。(Examples) Examples will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is a drive plate, which is made of a steel disc. Reference numeral 2 denotes a shaft fitting portion, which has a shaft end face mounting portion 3 around a central hollowed hole, a positioning pin hole 4 and several mounting holes 5 are drilled therein, and further has a ring-shaped chevron cross section. Alternatively, an arcuate buffer portion 6 is formed.
この緩衝部６から更に４個の嵌合突起７が等間隔で突設
されており、該突起７は、第２図(b)で明らかなように
頂部がほぼ平らな鋸歯状をなし、円板中心側から取付部
３から垂直に立上る嵌合壁7aと、頂壁7b、外壁7cが設け
られ、頂壁7bには円周方向に横切る押込み凹部7dが設け
られてこれにより嵌合壁7aを増肉し、このように形成し
た４個の嵌合壁7aで一連の軸嵌合面を形成する。また、
突起７の側面は側壁7eで閉じられている。Further, four fitting projections 7 are projected from the cushioning portion 6 at equal intervals, and the projections 7 have a sawtooth shape with a substantially flat top as shown in FIG. 2 (b). A fitting wall 7a that rises vertically from the plate center side from the mounting portion 3, a top wall 7b, and an outer wall 7c are provided, and the top wall 7b is provided with a depression recess 7d that traverses in the circumferential direction. The thickness of 7a is increased, and a series of shaft fitting surfaces are formed by the four fitting walls 7a thus formed. Also,
The side surface of the protrusion 7 is closed by a side wall 7e.
軸嵌合部２の外側には多数の軽量穴８と断面台形の緩衝
部９が設けられ、また、外周近くにトルクコンバータに
連結する固定穴10が穿設されている。A large number of lightweight holes 8 and a buffer section 9 having a trapezoidal cross section are provided on the outer side of the shaft fitting section 2, and a fixing hole 10 for connecting to a torque converter is provided near the outer circumference.
前記嵌合突起７は、第３図に示す金型11で冷間成形され
る。金型11は、ダイ12とパンチ13からなり、４個所に雌
型14と雄型15が設けられ、それぞれに立面14a、15a、頂
面14b、15b、斜面14c、15c、をもち、更に雌型14には、
頂面に押込み突起14dと、両側に緩衝部６を受入れる凹
部14eが設けられている。The fitting protrusion 7 is cold-molded by the mold 11 shown in FIG. The die 11 is composed of a die 12 and a punch 13, and a female die 14 and a male die 15 are provided at four locations, each having an elevation surface 14a, 15a, a top surface 14b, 15b, and a sloped surface 14c, 15c. The female mold 14 has
A pushing projection 14d is provided on the top surface, and concave portions 14e for receiving the buffer portion 6 are provided on both sides.
嵌合壁7aを成形する立面14a、15a、間の距離ｔ１は、円
板の厚さｔ０より小さいがなるべくｔ０に近くして素材
中に伸び又は剪段的なずれが生じるのを防止し、しごき
成形が行なわれるようにしてある。ｔ１をこのような値
にすることにより、矢印Ｍで示すモーメントが生じて曲
げを主体とする変形が起こり、第３図(b)に矢印Ａ１で
示す伸び又はずれを低く抑えて加工硬化を抑えることが
できる。The distance t 1 between the vertical surfaces 14a, 15a forming the fitting wall 7a is smaller than the thickness t 0 of the disk but is as close to t 0 as possible so that elongation or shear displacement occurs in the material. Is prevented and ironing is performed. By setting t 1 to such a value, a moment indicated by an arrow M is generated to cause a deformation mainly due to bending, and the elongation or displacement indicated by an arrow A 1 in FIG. Can be suppressed.
そして、伸び量の少ないことによる高さｈの不足を補う
ために、押込み突起14dが頂壁7cに押込まれ、肉厚ｔ２
の凹部7dが形成されて矢印Ａ２方向の流れを生じさせ、
増肉により所望の高さｈを得る。Then, in order to compensate for the lack of the height h due to the small amount of elongation, the pushing protrusion 14d is pushed into the top wall 7c, and the wall thickness t 2
A concave portion 7d is formed to cause a flow in the direction of arrow A 2 ,
A desired height h is obtained by increasing the thickness.
前記実施例においては、緩衝部６を予め成形し、該緩衝
部６から嵌合突起７を成形しているので、２段成形とな
り嵌合突起７の成形が容易である。しかし、緩衝部６と
嵌合突起７を同時に形成する金型を用いてもよいし、ま
た、緩衝部６を設けることなく、平面上に嵌合突起７の
みを設けけることもできる。In the above-described embodiment, since the cushioning portion 6 is formed in advance and the fitting protrusion 7 is formed from the cushioning portion 6, two-step molding is performed, and the fitting protrusion 7 can be easily formed. However, a mold for simultaneously forming the buffer portion 6 and the fitting protrusion 7 may be used, or the fitting protrusion 7 alone may be provided on a plane without providing the buffer portion 6.
（発明の効果） 以上のように、本発明は、軸嵌合部として嵌合突起を数
個設けるだけであるから未加工の部分が多い上に、嵌合
突起の嵌合壁は、曲げを主体とした加工によって形成さ
れるから材料の劣化がない。したがって疲労限度が高
く、トルクの変動や径方向の力の変動による繰返し荷重
が作用しても疲労せず充分な耐久性を発揮する。(Effects of the Invention) As described above, according to the present invention, since only a few fitting protrusions are provided as the shaft fitting portion, there are many unprocessed portions, and the fitting wall of the fitting protrusion is bent. Since it is formed mainly by processing, there is no deterioration of the material. Therefore, the fatigue limit is high, and even if a repeated load is applied due to torque fluctuations and radial force fluctuations, fatigue does not occur and sufficient durability is exhibited.
そして、頂壁に押込み凹部を設けることにより頂壁の肉
が嵌合壁に押出されて該壁の高さ及び肉出し精度を補っ
ているので、組立時の位置決めが正確にでき、使用時に
は位置ずれを充分に防止することができる。Since the top wall is provided with a push-in concave portion, the meat of the top wall is extruded into the fitting wall to compensate for the height of the wall and the accuracy of the thickness of the wall, so that the positioning at the time of assembly can be performed accurately and the position at the time of use can be improved. The deviation can be sufficiently prevented.
また、プレス成形を１工程で加工するため、クランクシ
ャフトセンタに対する製品センタの芯ずれが殆どなく、
製品バランスが極めて良いため、バランス穴の追加工を
省くことができる。Also, since press molding is processed in one process, there is almost no misalignment of the product center with respect to the crankshaft center,
Since the product balance is extremely good, it is possible to omit the additional machining of the balance hole.
第１図は本発明の実施例の斜面図、第２図(a)は第１図
のII−II線断面図、同(b)は(a)のIIｂ部拡大図、同(c)
は(a)のIIｃ部拡大図、第３図(a)(b)は成形前及び成形
後を示す断面図、第４図(a)(b)は従来のドライブプレー
トの斜面図及び断面図、第５図は第４図のドライブプレ
ートを用いた流体トルクコンバータの断面図である。 ７……嵌合突起 7a……嵌合壁 7b……頂壁 7d……押込み凹部1 is a perspective view of an embodiment of the present invention, FIG. 2 (a) is a sectional view taken along line II-II of FIG. 1, FIG. 2 (b) is an enlarged view of IIb portion of (a), and FIG.
Is an enlarged view of IIc part of (a), FIGS. 3 (a) and (b) are sectional views showing before and after molding, and FIGS. 4 (a) and (b) are oblique views and sectional views of a conventional drive plate. 5 is a sectional view of a fluid torque converter using the drive plate of FIG. 7-Mating protrusion 7a-Mating wall 7b-Top wall 7d-Pressing recess
Claims (1)
定するための複数個の固定穴と、駆動軸の外周面に嵌合
する嵌合壁とを備え、円板の外周にポンプ連結部を備え
た流体トルクコンバータ用ドライブプレートにおいて、
同一円周に沿って点在させた複数個の嵌合突起を設け、
該嵌合突起の嵌合壁を、円板の一部を突出させると共
に、嵌合突起の頂壁に押込み凹部を設けて壁肉の一部を
該嵌合壁の端部に押出して増肉して形成したことを特徴
とする流体トルクコンバータ用ドライブプレート。1. A disk comprising a plurality of fixing holes for fixing the disk to an end surface of a drive shaft and a fitting wall fitted to an outer peripheral surface of the drive shaft, in the center of the disk. In the drive plate for the fluid torque converter equipped with the pump connecting portion on the outer periphery,
Providing multiple fitting protrusions scattered along the same circumference,
The fitting wall of the fitting projection is made to protrude a part of the disc, and a pressing recess is provided in the top wall of the fitting projection to extrude a part of the wall thickness to the end of the fitting wall to increase the thickness. A drive plate for a fluid torque converter, which is formed by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63110086A JPH0650143B2 (en) | 1988-05-06 | 1988-05-06 | Drive plate for fluid torque converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63110086A JPH0650143B2 (en) | 1988-05-06 | 1988-05-06 | Drive plate for fluid torque converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01283467A JPH01283467A (en) | 1989-11-15 |
| JPH0650143B2 true JPH0650143B2 (en) | 1994-06-29 |
Family
ID=14526671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63110086A Expired - Fee Related JPH0650143B2 (en) | 1988-05-06 | 1988-05-06 | Drive plate for fluid torque converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650143B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63110085A (en) * | 1986-10-27 | 1988-05-14 | 本田技研工業株式会社 | Rough terrain vehicle |
| JPH0823387B2 (en) * | 1987-06-30 | 1996-03-06 | 本田技研工業株式会社 | Method of molding cover member for torque converter |
-
1988
- 1988-05-06 JP JP63110086A patent/JPH0650143B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01283467A (en) | 1989-11-15 |
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