【発明の詳細な説明】[技術分野1本発明はころがり遊星機構を用いた変速機に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a transmission using a rolling planetary mechanism.
[背景技術1ころがり遊星機構による変速機は、太陽軸とこれと同心
のリングとの間に、これら両者にころがり接触する複数
個の遊星ローラを配設するとともに各遊星ローラをリテ
ーナで保持し、太陽軸とリングとリテーナの3つのうち
のいずれか1つを固定したものとして、残る2つのうち
の一方を入力側、他方を出力側とするのであるが、この
ころがり接触による遊星機構においては、遊星ローラと
太陽軸及び遊星ローラとリングの各接触を得るために、
予圧力を与える必要がある。そして従来における予圧力
の付与は、リングの焼き嵌めや、リングの内周面に弾性
材を設けることで行なわれていたのであるが、前者の場
合、予圧力の調整が困難であり、また常に人外な圧接力
がかかっているために、変速機の寿命に問題がある。そ
して後者にあっては、複数個の遊星ローラに予圧力を均
等にかけにくいという問題点を有している。[Background Art 1] A transmission using a rolling planetary mechanism has a plurality of planetary rollers disposed between a sun shaft and a ring concentric with the sun shaft and in rolling contact with both, and each planetary roller is held by a retainer. Assuming that any one of the sun shaft, ring, and retainer is fixed, one of the remaining two is used as the input side and the other as the output side, but in this planetary mechanism using rolling contact, In order to obtain each contact between the planetary roller and the sun axis and between the planetary roller and the ring,
It is necessary to apply preload force. Conventionally, preload force was applied by shrink-fitting the ring or by providing an elastic material on the inner circumferential surface of the ring, but in the former case, it was difficult to adjust the preload force, and it was not always possible to adjust the preload force. There is a problem with the lifespan of the transmission due to the unreasonable contact force being applied. The latter method has a problem in that it is difficult to apply preload force evenly to the plurality of planetary rollers.
[発明の目的1本発明はこのような京に鑑み為されたものであり、その
目的とするところは予圧力の設定が簡単であるとともに
調整も容易に行なえるころがり遊星型の変速機を提供す
るにある。[Objective of the Invention 1 The present invention has been made in view of the above circumstances, and its purpose is to provide a rolling planetary type transmission in which preload force can be easily set and adjusted. There is something to do.
[発明の開示1しかして本発明は、太陽軸とこれと同心のリングとの間
に、これら両者にころがり接触する遊星ローラを配設す
るとともに遊星ローラをリテーナで保持したころがり遊
星型変速機において、太陽軸と遊星ローラとを強磁性体
で、リテーナを常磁性体で、固定されたリングを電磁石
で形成していることに特徴を有しているものであり、リ
ングと遊星ローラと太陽軸との各間に働く磁気吸引力が
予圧力として作用するようにしたものであるとと・もに
、この磁気吸引力はリングである電磁石でもって調整す
ることがで終るようにしたものである。[Disclosure of the Invention 1 The present invention provides a rolling planetary transmission in which a planetary roller is disposed between a sun shaft and a ring concentric therewith, and the planetary roller is in rolling contact with both, and the planetary roller is held by a retainer. , the sun shaft and the planetary rollers are made of ferromagnetic material, the retainer is made of paramagnetic material, and the fixed ring is made of electromagnet. The magnetic attraction force acting between the two acts as a preload force, and this magnetic attraction force can be adjusted using an electromagnet, which is a ring. .
尚、リングを電磁石とすることから、この材質は透磁率
の高いものとする。また、太陽軸と遊星ローラとリング
とが接触しておらない状態では意味をなさないことから
、リングの装着を焼き嵌めで行なうものとする。ただし
、この焼か嵌めによって得られる初期予圧力は、上記3
者が少し接触する程度でよい。Since the ring is an electromagnet, the material should have high magnetic permeability. Further, since it is meaningless if the sun shaft, planetary roller, and ring are not in contact with each other, the ring is attached by shrink fitting. However, the initial preload force obtained by this shrink fitting is
A small amount of contact between the person and the person is sufficient.
以下本発明を図示の実施例に基づいて詳述すると、太陽
軸1と、これと同心のリング2と、複数個の遊星ローラ
3及びリテーナ4とからなるこの変速機は、各遊星ロー
ラ3が太陽軸1の外周面とリング2の内周面とにころが
i)接触するものであって、各遊星ローラ3はその両端
の軸20がリテーナ4によって支持されており、またリ
テーナ4には出力軸40が取り付けられ、リテーナ4内
面に配された軸受10によって太陽軸1の自由端が支持
されている。The present invention will be described in detail below based on the illustrated embodiment. This transmission includes a sun shaft 1, a ring 2 concentric with the sun shaft, a plurality of planetary rollers 3, and a retainer 4. The rollers (i) are in contact with the outer peripheral surface of the sun shaft 1 and the inner peripheral surface of the ring 2, and each planetary roller 3 has a shaft 20 at both ends supported by a retainer 4, and the retainer 4 has a An output shaft 40 is attached, and the free end of the sun shaft 1 is supported by a bearing 10 arranged on the inner surface of the retainer 4.
そして太陽軸1と各遊星ローラ3とが強磁性体によって
形成されているとともに、リテーナ4が常磁性体によっ
て形成されており、リング2は高透磁率を有するものと
されているとともに、外周部にコイル5が巻回されるこ
とで、電磁石を構成するものとされている。The sun shaft 1 and each planetary roller 3 are made of a ferromagnetic material, the retainer 4 is made of a paramagnetic material, the ring 2 has high magnetic permeability, and the outer peripheral portion The coil 5 is wound around the coil 5 to constitute an electromagnet.
しかしてこの変速機においては、リング2を固定した状
態において、太陽軸1を入力軸としてこれを回転させた
ならば、太陽軸1及びりング2に接触する遊星ローラ3
は、自転しつつ公転を行なうものであり、この公転運動
がリテーナ4の回転として、出力軸40に伝達されるも
のであるが、この時、リング2に装着されたコイル5に
所要の電流を流せば、遊星ローラ3とりング2及びM星
ローラ3と太陽軸1の開に働く磁気吸引力によって、こ
れらの間に必要とする予圧力を得ることがでトるもので
あり、またこの予圧力はコイル5に流す電流値によって
調整することができるために、出力トルクに合った予圧
力を設定することができるものである。従って、通常は
リング2の焼き嵌めによるところの小さな予圧力だけと
しておき、出力軸40に高負荷が作用するような時だけ
、コイル5に電流を流して、予圧力を高めると11うこ
とができるものである。尚、予圧力に関与しなl、1リ
テーナ4は常磁性体であるために、円滑な回転を行なう
。However, in this transmission, when the ring 2 is fixed and rotated using the sun shaft 1 as the input shaft, the planetary roller 3 that contacts the sun shaft 1 and the ring 2
rotates on its own axis and revolves, and this orbital motion is transmitted to the output shaft 40 as rotation of the retainer 4. At this time, a required current is applied to the coil 5 attached to the ring 2. If the flow is allowed to flow, the required preload force can be obtained between the planetary roller 3 and the ring 2, the M star roller 3, and the sun shaft 1 due to the magnetic attraction force that acts on the openings between them. Since the pressure can be adjusted by the value of the current flowing through the coil 5, the preload force can be set in accordance with the output torque. Therefore, normally only a small preload force is applied due to shrink fitting of the ring 2, and only when a high load is applied to the output shaft 40, current is applied to the coil 5 to increase the preload force. It is possible. Incidentally, since the l,1 retainer 4, which is not involved in the preload force, is made of a paramagnetic material, it rotates smoothly.
[発明の効果1以上のように本発明においては、遊星ローラが内接する
固定されたリングを電磁石とし、これによるところの磁
気吸引力でもってリングと遊星ローラあるいは過量ロー
ラと太陽軸との間の予圧力の設定並びに調整を行なえる
ものであって、必要とする予圧力を容易に且つ確実に得
ることができて動力伝達効率を高めることができるとと
もに、リングを電磁石として働かせていない時には小さ
な予圧力がかかるだけとなるために、装置の寿命も向上
するものである。[Effect of the invention 1 As described above, in the present invention, the fixed ring in which the planetary roller is inscribed is an electromagnet, and the magnetic attraction force generated by the electromagnet is used to create a connection between the ring and the planetary roller or the excess roller and the sun axis. The preload force can be set and adjusted, and the required preload force can be easily and reliably obtained, increasing power transmission efficiency, and when the ring is not working as an electromagnet, a small preload can be used. Since only pressure is applied, the life of the device is also improved.
第1図は本発明一実施例の正面図、第2図は同上め断面
図であって、1は太陽軸、2はリング、3は遊星ローラ
、4はリテーナを示す。FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the same, in which 1 represents a sun shaft, 2 a ring, 3 a planetary roller, and 4 a retainer.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11252485AJPS61270552A (en) | 1985-05-25 | 1985-05-25 | Transmission |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11252485AJPS61270552A (en) | 1985-05-25 | 1985-05-25 | Transmission |
| Publication Number | Publication Date |
|---|---|
| JPS61270552Atrue JPS61270552A (en) | 1986-11-29 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11252485APendingJPS61270552A (en) | 1985-05-25 | 1985-05-25 | Transmission |
| Country | Link |
|---|---|
| JP (1) | JPS61270552A (en) |
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| US10047861B2 (en) | 2016-01-15 | 2018-08-14 | Fallbrook Intellectual Property Company Llc | Systems and methods for controlling rollback in continuously variable transmissions |
| US10920882B2 (en) | 2016-01-15 | 2021-02-16 | Fallbrook Intellectual Property Company Llc | Systems and methods for controlling rollback in continuously variable transmissions |
| US11306818B2 (en) | 2016-01-15 | 2022-04-19 | Fallbrook Intellectual Property Company Llc | Systems and methods for controlling rollback in continuously variable transmissions |
| US10458526B2 (en) | 2016-03-18 | 2019-10-29 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, systems and methods |
| US12145690B2 (en) | 2016-05-11 | 2024-11-19 | Enviolo B.V. | Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmissions |
| US11667351B2 (en) | 2016-05-11 | 2023-06-06 | Fallbrook Intellectual Property Company Llc | Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission |
| US11215268B2 (en) | 2018-11-06 | 2022-01-04 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US11624432B2 (en) | 2018-11-06 | 2023-04-11 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US12173778B2 (en) | 2018-11-06 | 2024-12-24 | Enviolo B.V. | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US11530739B2 (en) | 2019-02-26 | 2022-12-20 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
| US12000458B2 (en) | 2019-02-26 | 2024-06-04 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
| US11174922B2 (en) | 2019-02-26 | 2021-11-16 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
| US12442434B2 (en) | 2024-06-04 | 2025-10-14 | Enviolo B.V. | Reversible variable drives and systems and methods for control in forward and reverse directions |
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