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PLANETARY ROLLER DRIVE-TYPE INSCRIBED PLANETARY GEAR REDUCTION DEVICE

Foreign code F170009035
File No. S2016-0694-N0
Posted date Apr 26, 2017
Country WIPO
International application number 2016JP062988
International publication number WO 2016175188
Date of international filing Apr 26, 2016
Date of international publication Nov 3, 2016
Priority data
  • P2015-093212 (Apr 30, 2015) JP
Title PLANETARY ROLLER DRIVE-TYPE INSCRIBED PLANETARY GEAR REDUCTION DEVICE
Abstract [Problem] To provide a small-sized, lightweight, and inexpensive inscribed planetary gear reduction device that has lower levels of vibration and noise than in the prior art.
[Solution] This inscribed planetary gear reduction device is configured from: a planetary roller (300) that turns while in contact with the outer peripheral surface of an input shaft (C); a planetary gear (400) having an outer ring (430) that turns with the outer periphery of the planetary roller (300) inscribed thereon; a frame member (500) having a fixed outer gear (533) capable of meshing with an inner gear (433) formed in the outside surface of the outer ring (430) and allowing the planetary gear (400) to move in planetary motion along the inner periphery; and an output shaft (600) capable of extracting and outputting only the revolution component from the motion of the planetary gear (400).
Outline of related art and contending technology BACKGROUND ART
Conventionally, rotation of the rotary shaft of the drive source such as a motor driving force is transmitted through the mechanical apparatus, with respect to the power from a drive source, the reduction gear transmission or the like are connected to, so as to be adapted to the characteristics of the machine, the rotation of the rotary shaft from a drive source and adjust the speed or torque is typically used.
Then, such mechanical devices, for example, audio recording and image recognition or the like so as to follow up the target for the purpose of operating a pan head of relatively small, the size of a toy which can be hand-communication using the robot, or, in the radio control model or the like, low vibration and quieter, more compact actuator has been required, these may be used to speed reducer, low vibration and low noise is more compact and lighter weight are required.
However, such a relatively small size of the electrical actuator motor speed-reduction spur gears used and the planet gears and the like, and suffer from significant noise, instead of these in the case of using the worm wheel, noise is smaller, the size of the assembly may be increased.
In addition, a small motor or the like as described above is used as a reducer having a planetary gear mechanism with a planetary gear speed reducer is often used. The planetary gear speed reducer may be, for example, as shown in Fig. 14 (A), in the vehicle and the drive shaft and the planetary gears S P C from the engine, the turbine extracts power from the output shaft O, expression of the speed reduction mechanism such as S-P-C are known, the speed reducer having a planetary gear mechanism such as one of, for example, cycloid reduction gear unit (trade name as' the cycloidal speed reducer (registered trademark) ' or the like) and the like.
Scope of claims (In Japanese)[請求項1]
駆動源に接続され、軸心を中心に回転する入力軸と、
前記入力軸の外周面と回転面の一部が相互に接するように設けた、前記入力軸の軸心と平行で同一の方向を向いた回転軸を有する遊星ローラと、
前記入力軸に対して垂直に形成された円板状の伝動板と前記伝動板の外縁から前記駆動源側に前記入力軸に対して平行に形成された外輪とからなり、前記伝動板には、前記伝動板の中心を取り囲むように等間隔に形成された複数の貫通孔を有し、前記外輪の内側面に前記遊星ローラの回転面の一部が内接し、前記外輪の外側面に内歯車が形成された遊星歯車と、
前記遊星歯車の前記外輪の外側面に形成された内歯車と噛合する外歯車を有する枠部材と、
前記遊星歯車の前記伝動板に形成された複数の貫通孔のそれぞれに一部で内接する複数のピンが立設された伝達板と前記伝達板の前記ピンが立設された側とは反対側に立設された伝達軸とからなる出力軸と、
により構成されることを特徴とする遊星ローラ駆動型内接式遊星歯車減速装置。
[請求項2]
前記遊星ローラの回転面は弾性体により構成される請求項1に記載の遊星ローラ駆動型内接式遊星歯車減速装置。
[請求項3]
前記枠部材の外歯車の前記内歯車に面した側の一部は、前記駆動源の軸心と平行な回転軸を有する回転可能なピンにより形成される請求項1又は2に記載の遊星ローラ駆動型内接式遊星歯車減速装置。
[請求項4]
前記遊星歯車の外側面に形成される内歯車の歯形はインボリュート歯形又はサイクロイド歯形のいずれかにより形成される請求項1乃至3のいずれか1項に記載の遊星ローラ駆動型内接式遊星歯車減速装置。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • TOKYO INSTITUTE OF TECHNOLOGY
  • Inventor
  • HASEGAWA Shoichi
  • SATO Daiki
  • HOUJOH Haruo
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS KE KG KN KP KR KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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