JPS63297853A - Transmission - Google Patents

Abstract

PURPOSE:To accumulate a lot of power transmission rotors and to increase power transmission capacity by fixing two bearing rings of four bearing rings to a rotary shaft, using one of the other two bearing rings as an input shaft, and using the other thereof as an output shaft. CONSTITUTION:Fixed bearing rings 2, 3, an input bearing ring 4 and an output bearing ring 5 are pressed to a spherical rolling element 1. The fixed bearing rings 2, 3 respectively have projecting and recessed troidal contacting surfaces are moved in parallel to a rotary shaft by a sliding mechanism 32 and oil pressure of working fluid going in and out an oil chamber 33. The input bearing ring 4 having a recessed troidal contacting surface is connected to an input shaft 8 by a slide coupling 42, and moved in parallel to the rotary shaft by oil pressure to an oil chamber 43. The output bearing ring 5 having a projecting troidal connecting surface is also connected to an output shaft 9 by a slide coupling 52 and moved in parallel to the rotary shaft by oil pressure to an oil chamber 53.

Description

【発明の詳細な説明】 （イ）産業上の利用分野 本発明はトラクション［ライブ変速機に関する。[Detailed description of the invention] (b) Industrial application field The present invention relates to a traction [live transmission].

（０）従来の技術 回転体を互いに押しつけ、そのＥＨＬ（弾性流体潤滑理
論）内接触点に生じる転がり方向の接線力によってトル
クを伝達する所謂トラクションｒライブ変速機は、＠量
で高速回転に適し、棚段変速が容易にできる特徴を有す
るが、従来この方式での動力伝達能力は数馬力程度が限
界といわれてきた。即ちこの方式においては伝動回転体
１個あたりの動力伝達能力は小さく、且つ伝動回転体１
個毎に機械的に支持された具体的回転軸を設ける必要が
あったため、動力伝達能力を高める目的で伝動回転体の
穀を増すと構造が複雑になり、専有容積及び重量が増加
し、コスト高になって実用にならなかった。(0) Conventional technology The so-called traction r-live transmission, which presses rotating bodies against each other and transmits torque by the tangential force in the rolling direction generated at their EHL (elastohydrodynamic lubrication theory) contact points, is suitable for high-speed rotation. , which has the feature of being able to easily change gears, but it has been said that the power transmission capacity of this method has conventionally been limited to a few horsepower. In other words, in this system, the power transmission capacity per rotary power transmission body is small, and the power transmission capacity per rotary power transmission body 1 is small.
Because it was necessary to provide a specific rotating shaft that was mechanically supported for each individual rotating shaft, increasing the number of transmission rotors for the purpose of increasing power transmission capacity would complicate the structure, increase the dedicated volume and weight, and increase costs. It became too expensive to be of practical use.

（ハ）発明が解決しようとする問題点 本発明は伝動回転体を支持する具体的回転軸を不要にし
、極めて多数の伝動回転体を容易に集積し得る如くシ、
よって大きな動力伝達能力を有するトラクショ、／「ラ
イブ変速機を提供せんとするものである。(c) Problems to be Solved by the Invention The present invention eliminates the need for a specific rotating shaft for supporting the power transmission rotors, and enables easy integration of a large number of power transmission rotors.
Therefore, we aim to provide a traction/live transmission with a large power transmission capacity.

（ニ）問題点を解決するための手段 本発明は球体の転動体に４ケ所で接触する４個の軌道幅
のうち２個の軌道輪をその回転軸に関して固定し、他の
２個の軌道輪の一方を入力軸とし他方を出力軸とする変
速機で、無段変速をする場合は軌道輪の転動体との接触
面をトｏイダル面とし、且つ軌道輪をその回転軸に平行
に移動するととにより転動体との接触点が変わる如くし
たものである。(d) Means for Solving the Problems The present invention fixes two raceways of the four raceway widths that contact the spherical rolling elements at four locations with respect to their rotational axis, and fixes the other two raceways. In a transmission where one of the rings is an input shaft and the other is an output shaft, when performing continuously variable speed, the contact surface of the bearing ring with the rolling element is a toidal surface, and the bearing ring is parallel to the rotation axis. The point of contact with the rolling element changes as it moves.

（ホ）作用 上記のような手段をとることにより伝動回転体である球
体１個毎に具体的回転軸を作製し且つこれを機械的に保
持する必要がなくなるので、伝動回転体の数を大きく増
加しても構造はさして複雑にならず専有容積１重量及び
コストを増加させずに動力伝達能力を向上させ得るもの
である。(e) Effect By taking the above-mentioned measures, it is no longer necessary to create a specific rotating shaft for each spherical transmission rotating body and to mechanically hold it, so the number of transmission rotating bodies can be increased. Even if it increases, the structure does not become very complicated, and the power transmission ability can be improved without increasing the occupied volume, weight, or cost.

本発明の作動原理を第１図につ（１て説明すると球体の
転動体（１）には４個の軌道片（２）、　（３）。The operating principle of the present invention is explained in Fig. 1 (1) A spherical rolling element (1) has four raceway pieces (2) and (3).

（４）、　（５）が押しつけられ接点（２１）、　（３
１）、　（４１）。(4), (5) are pressed and contacts (21), (3
1), (41).

（５１）でＥＨＬ的に接触している。軌道片（２）及び
（３）を固定し軌道片（４）を紙面う垂直に動かすと軌
道片（５）も紙面に垂直に動く、軌道片（４）と（５）
の移動量の比率１は球体（１）及び軌道片（２）。(51) makes contact in an EHL manner. If track pieces (2) and (3) are fixed and track piece (4) is moved perpendicular to the page, track piece (5) also moves perpendicular to the page, track pieces (4) and (5).
The ratio of the amount of movement is 1 for the sphere (1) and the track piece (2).

（３）、　（４）、　（５）の弾性変形量、ＥＨＬ潤滑
のオイルの質９球体（１）のスじシ運動等により微妙に
変化するが大体において１＝百である。ここにおいてａ
は接点（２１）と（３１）間に引いた直線に対して接点
（４１）よりおろした垂線の長さ、ｂは接点（２１）と
（３１）開に引いた直線に対して、接点（５１）よりお
ろした垂線の長さである。この原理を実際の変速機に実
施する場合は軌道片を二次元的に曲げて閉じ軌道輪とす
る。The amount of elastic deformation in (3), (4), and (5), the quality of the oil for EHL lubrication, etc. will vary slightly depending on the linear movement of the sphere (1), etc., but in general, 1 = 100. Here a
is the length of the perpendicular line drawn from the contact point (41) to the straight line drawn between the contact points (21) and (31), and b is the length of the perpendicular line drawn from the contact point (21) to the straight line drawn between the contact points (21) and (31). 51) It is the length of the perpendicular line drawn down. When this principle is applied to an actual transmission, the raceway pieces are bent two-dimensionally to form a closed raceway ring.

（へ）実施例 第２図は本発明の実施例の固定変速比の変速機の要部縦
断面図で（１）は球体の転動体、（２）及び　　　　　
　　・（３）は固定軌道輪、（４）は入力軌道輪、（５
）は出力軌道輪、（６）は軌道幅を転動体に押しっける
寸５ばね、（７）は転動体保持器を示す、この実施例に
おいても変速比１は転動体（１）及び軌道幅（２）。(f) Embodiment FIG. 2 is a longitudinal cross-sectional view of the essential parts of a fixed gear ratio transmission according to an embodiment of the present invention, in which (1) is a spherical rolling element, (2) and
・(3) is a fixed bearing ring, (4) is an input bearing ring, (5
) is the output raceway ring, (6) is the 5 spring that pushes the raceway width against the rolling elements, and (7) is the rolling element retainer. In this example as well, the gear ratio 1 is the rolling element (1) and the raceway. Width (2).

（３）、　（４）、　（５）の弾性変形口、ＥＨＬ潤滑
のオイルの質１球体（１）のスじシ運動等により微妙に
変Ｘｃ 化するが大体において””ＴＸ？ｒである。ここにおい
てＣは接点（４１）と軌道＃３回転軸間の距１１１．　
ｄは接点（５１）と軌道輪回転軸間の距離である。(3), (4), (5) elastic deformation ports, quality of EHL lubrication oil, 1 Due to the linear movement of the sphere (1), Xc changes slightly, but in general, ""TX? It is r. Here, C is the distance 111. between the contact point (41) and the rotation axis of orbit #3.
d is the distance between the contact point (51) and the bearing ring rotation axis.

第３図及び第４図は本発明の実施例の無段変速機の要部
縦断面で第３図は変速比大（増速）の場合、第４図は変
速化生（減速）の場合を示す１図中（１）は球体の転動
体、（２）は凸形トロイダルの接触面の固定軌道輪、（
３）は凹形トロイダルの接触面の固定軌道輪でスベリ機
構（３２）と油室（３３）に出入する作動油の油圧によ
り回転軸に平行にのみ移動し得る。（４）は凹形トロイ
ダルの接触面の入力軌道輪でスベリ継手（４２）により
入力軸（８）に結合され、ｆ、た油室（４３）に出入す
る作動油の油圧により回転軸に平行に移動し得る。（５
）は凸形トロイダルの接触面の出力軌道輪でスベリ継手
（５２）により出力軸（９）に結合され、また油室（５
３）に出入する作動油の油圧により回転軸に平行に移動
し得る。Figures 3 and 4 are longitudinal cross-sections of essential parts of a continuously variable transmission according to an embodiment of the present invention. Figure 3 is for a large gear ratio (speed increase), and Figure 4 is for a case with variable speed change (deceleration). In Figure 1, (1) is a spherical rolling element, (2) is a convex toroidal fixed bearing ring on the contact surface, (
3) is a fixed bearing ring with a concave toroidal contact surface, which can only move parallel to the rotation axis by the sliding mechanism (32) and the hydraulic pressure of the hydraulic oil flowing in and out of the oil chamber (33). (4) is an input bearing ring with a concave toroidal contact surface, which is connected to the input shaft (8) by a sliding joint (42), and is parallel to the rotating shaft due to the hydraulic pressure of the hydraulic oil flowing in and out of the oil chamber (43). can be moved to. (5
) is an output bearing ring with a convex toroidal contact surface, which is connected to the output shaft (9) by a sliding joint (52), and is also connected to the oil chamber (5
3) It can be moved parallel to the rotation axis by the hydraulic pressure of the hydraulic oil flowing in and out.

第３図示の増速時に比し第４図示の減速時においては固
定軌道輪（３）及び入力軌道輪（４）は太きく左方に移
動し、出力軌道輪（５）は少し左方に移動し９球体の転
動体（１）は左方に移動すると同時に入出力軸に近づく
、転動体（１）と４個の軌道イ・コ（２）、　（３）、
　（４）、　（５）との接触点は相対的に大き、　　ｂ
Ｘｃ く変り１＝藺が小さくなって大きな変速比が得られるも
のである。Compared to the speed increase shown in the third figure, during the deceleration shown in the fourth figure, the fixed raceway (3) and the input raceway (4) move further to the left, and the output raceway (5) moves slightly to the left. The moving 9-spherical rolling element (1) moves to the left and at the same time approaches the input/output axis, the rolling element (1) and the four orbits I and Co (2), (3),
The contact points with (4) and (5) are relatively large, b
Xc change 1 = the change becomes smaller and a larger gear ratio can be obtained.

（ト）発明の効果 本発明によるトラクション「ライフ変速機は伝動回転体
として球を用い、また伝動回転体に機械的な軸を設けこ
れを保持する必要がないので構造が簡単であり、極めて
多数の伝動回転体を容易に集積し得、従って大きな動力
伝達能力を有する変速機を低コストで製造できるもので
ある。また本発明による変速機はその構造に所謂ボール
ベアリシジと類似した点があり、ポールベアリンジの製
造技術・伜設備を流用することも可能であるので。(G) Effects of the invention The traction "life transmission" according to the present invention uses a ball as the transmission rotating body, and there is no need to provide a mechanical shaft for the transmission rotating body to hold it, so the structure is simple and there are extremely large numbers of It is possible to easily integrate transmission rotating bodies, and therefore, a transmission having a large power transmission capacity can be manufactured at low cost.The transmission according to the present invention has a structure similar to that of a so-called ball bearing system, and is suitable for poles. It is also possible to reuse the manufacturing technology and equipment for bearing rings.

大量生産が容易にでき、無段変速ができることとあいま
って自動車の変速機に極めて効果的に使用できるもので
ある。It can be easily mass-produced, and combined with the ability to perform continuously variable transmission, it can be used extremely effectively in automobile transmissions.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の原理を示す略図、第２図は本発明によ
る固定変速比の変速機の要部縦断面図。 第３図及び第４図は本発明による無段変速機の要部縦断
面の上半部を示す。 図中符号（１）は球体の転動体、　　（２）、　（３）
、　（４）。 （５）は軌道片または軌道輪、（６）はりうばね。 （７）は転動体保持器、（８）は入力軸、（９）は出力
軸、　　（２１）、　（３１）、　（４１）、　（５１
）は転動体と軌道との接点、　　（３２）はスベリ機構
、　　（４２）、　（５２）はスベリ継手、　　（３３
）、　（４３）、　（５３）は油室。 才３図　　　　　　　才＋図FIG. 1 is a schematic diagram showing the principle of the present invention, and FIG. 2 is a longitudinal cross-sectional view of essential parts of a fixed speed ratio transmission according to the present invention. FIGS. 3 and 4 show the upper half of a vertical cross-section of essential parts of the continuously variable transmission according to the present invention. The symbol (1) in the figure is a spherical rolling element, (2), (3)
, (4). (5) is a raceway piece or raceway ring, and (6) a beam spring. (7) is a rolling element cage, (8) is an input shaft, (9) is an output shaft, (21), (31), (41), (51)
) is the contact point between the rolling element and the raceway, (32) is the sliding mechanism, (42), (52) is the sliding joint, (33
), (43), and (53) are oil chambers. Sai3 figure Sai+ figure

Claims (2)

【特許請求の範囲】[Claims] （１）球体の転動体に４ケ所で接触する４個の軌道輪の
うち２個の軌道輪を固定し、他の２個の軌道輪の一方を
入力軸とし他方を出力軸とする変速機。(1) A transmission in which two of the four bearing rings that contact the spherical rolling elements at four places are fixed, and one of the other two bearing rings is used as an input shaft and the other as an output shaft. . （２）球体の転動体に４ケ所で接触する４個の軌道輪の
うち２個の軌道輪をその回転軸に関して固定し、他の２
個の軌道輪の一方を入力軸とし他方を出力軸とする伝動
機構において、４個の軌道輪のうち少なくとも１個の軌
道輪の接触面をトロイダル面とし、且つ軌道輪を回転軸
に平行に移動するととにより転動体との接触点が変わる
如くした無段変速機。(2) Of the four bearing rings that contact the spherical rolling element at four places, two of the bearing rings are fixed with respect to their rotation axis, and the other two
In a transmission mechanism in which one of the four bearing rings is an input shaft and the other is an output shaft, the contact surface of at least one of the four bearing rings is a toroidal surface, and the bearing ring is parallel to the rotation axis. A continuously variable transmission in which the point of contact with the rolling elements changes as it moves.