JPH0144856Y2 - - Google Patents
Info
- Publication number
- JPH0144856Y2 JPH0144856Y2 JP1984004365U JP436584U JPH0144856Y2 JP H0144856 Y2 JPH0144856 Y2 JP H0144856Y2 JP 1984004365 U JP1984004365 U JP 1984004365U JP 436584 U JP436584 U JP 436584U JP H0144856 Y2 JPH0144856 Y2 JP H0144856Y2
- Authority
- JP
- Japan
- Prior art keywords
- elastic
- casing
- circumferential surface
- rotating shaft
- elastic cylinder
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Landscapes
- Friction Gearing (AREA)
Description
【考案の詳細な説明】
本考案は、複数の遊星ローラを介して第１回転
軸と第２回転軸との間で回転力を伝達するよう構
成され、特に変速比の大きい変速装置として使用
し得るようになつた遊星ローラ式動力伝達装置に
関するものである。[Detailed description of the invention] The present invention is configured to transmit rotational force between a first rotating shaft and a second rotating shaft via a plurality of planetary rollers, and is particularly suitable for use as a transmission with a large gear ratio. This invention relates to a planetary roller type power transmission device that has become available.
以下本考案を図示実施例によつて説明する。 The present invention will be explained below with reference to illustrated embodiments.
第１図及び第２図に示した本考案実施例の遊星
ローラ式動力伝達装置は、横断面形状が真円形の
内周面を有するケーシング７と、ケーシング７に
装着され、入力軸として構成されている第１回転
軸１と、ケーシング７に装着され出力軸として構
成されるとともに、第１回転軸１と同一軸線上に
ある第２回転軸２と、第１回転軸１に同心関係に
固定された太陽ローラ３と、厚肉の第１弾性筒部
４ａと薄肉の第２弾性筒部４ｂとを有する弾性筒
体４と、太陽ローラ３と第１弾性筒部４ａとの間
の環状空間５内に配列された複数の遊星ローラ６
とを備えている。第１回転軸１上には、複数のピ
ン８を突設したキヤリヤ９が回転可能に装着され
ている。また各遊星ローラ６は、軸受１０，１１
を介して上記ピン８上に回転可能に嵌着されてい
る。 The planetary roller type power transmission device according to the embodiment of the present invention shown in FIGS. 1 and 2 includes a casing 7 having an inner circumferential surface with a perfect circular cross-sectional shape, and a casing 7 that is attached to the casing 7 and configured as an input shaft. A first rotating shaft 1 that is attached to the casing 7 and configured as an output shaft and is coaxial with the first rotating shaft 1, and a second rotating shaft 2 that is fixed to the first rotating shaft 1 in a concentric relationship. an elastic cylinder 4 having a thick first elastic cylinder part 4a and a thin second elastic cylinder part 4b, and an annular space between the sun roller 3 and the first elastic cylinder part 4a. A plurality of planetary rollers 6 arranged in 5
It is equipped with A carrier 9 having a plurality of protruding pins 8 is rotatably mounted on the first rotating shaft 1. Further, each planetary roller 6 has bearings 10 and 11.
The pin 8 is rotatably fitted onto the pin 8 via the pin 8.
上記キヤリヤ９は軸受１２，１３を介して第１
回転軸１上に回転可能に装着されるとともに、軸
受１４，１５を介してケーシング７に支持されて
いる。また、第２回転軸２は軸受１６，１７を介
しケーシング７によつて回転可能に支持されてい
る。なお、第１図において１８及び１９は締付け
ナツト、２１はケーシング７の支持体である。 The carrier 9 is connected to the first
It is rotatably mounted on the rotating shaft 1 and supported by the casing 7 via bearings 14 and 15. Further, the second rotating shaft 2 is rotatably supported by the casing 7 via bearings 16 and 17. In FIG. 1, 18 and 19 are tightening nuts, and 21 is a support for the casing 7.
上記弾性筒体４の第１弾性筒部４ａは、太陽ロ
ーラ３及び遊星ローラ６を包囲して各遊星ローラ
６ところがり接触するとともに、後に詳記する如
くケーシング７の内周面ともころがり接触してい
る。また弾性筒体４の第２弾性筒部４ｂは、一端
（第１図左端）が第１弾性筒部４ａに一体に連結
され、他端（第１図右端）が、第２回転軸２と一
体に回転する回転体２０に連結されている。な
お、図示実施例においては、ケーシング７の周壁
７ａの内周面に、硬質材料からなりかつ高精度に
仕上げ加工されている金属環７ｂが固着され、こ
の金属環７ｂの内周面７b′が、上記した如く第１
弾性筒部４ａところがり接触するケーシング７の
内周面になつている。しかるに、上記金属環７ｂ
を省略し、第１弾性筒部４ａがケーシング７の周
壁７ａの内周面に直接ころがり接触する構成にす
ることももちろん可能である。この場合には、上
記周壁７ａの内周面の、第１弾性筒部４ａところ
がり接触する部分を、硬度が大きくかつ高精度に
するように仕上げ加工することが望ましい。 The first elastic cylindrical portion 4a of the elastic cylindrical body 4 surrounds the sun roller 3 and the planetary rollers 6 and comes into rolling contact with each planetary roller 6, and also rolls into contact with the inner circumferential surface of the casing 7 as will be described in detail later. ing. Further, the second elastic cylinder part 4b of the elastic cylinder body 4 has one end (the left end in FIG. 1) integrally connected to the first elastic cylinder part 4a, and the other end (the right end in FIG. 1) is connected to the second rotating shaft 2. It is connected to a rotating body 20 that rotates together. In the illustrated embodiment, a metal ring 7b made of a hard material and finished with high precision is fixed to the inner peripheral surface of the peripheral wall 7a of the casing 7, and the inner peripheral surface 7b' of the metal ring 7b is , as mentioned above, the first
The elastic cylindrical portion 4a forms the inner circumferential surface of the casing 7 in rolling contact. However, the metal ring 7b
Of course, it is also possible to omit this and adopt a configuration in which the first elastic cylindrical portion 4a directly rolls into contact with the inner peripheral surface of the peripheral wall 7a of the casing 7. In this case, it is desirable that the portion of the inner circumferential surface of the peripheral wall 7a that comes into rolling contact with the first elastic cylinder portion 4a be finished to have high hardness and high precision.
第２図及び特に第３Ａ図に明瞭に示したよう
に、第１弾性筒部４ａは、ケーシング７の内周面
と同心関係をなしかつその内周面より小さな直径
を有する、横断面形状が真円形の弾性円筒３０
を、各遊星ローラ６の装着位置ａにおいて半径外
方へ突出させるように弾性変形させた変形円筒の
形状になつている。即ち、第１弾性筒部４ａの横
断面形状は太陽ローラ３の軸心を中心とする円を
変形させた変形円の形状になつている。そしてこ
の変形円は、各遊星ローラ６と第１弾性筒部４ａ
との接触点ａと太陽ローラ３の軸心とを結ぶ長さ
即ち半径を、第１弾性筒部４ａの内周上の、上記
接触点ａ以外の点（例えば第３Ａ図のｂ，ｃ）と
前記軸心とを結ぶ長さ即ち半径より微小量大きく
した形状になつていて、円周上の全ての点を通り
直径De（例えば第３Ａ図のｂ点を通る直径でも、
またｃ点を通る直径でもよい）が、前記太陽ロー
ラの軸心を中心としかつその軸心と前記接触点ａ
との間の長さを半径とする変形していない円の直
径より微小量小さくなつているのである。第２図
より明らかなように、第１弾性筒部４ａを上記の
如き形状のものにしているために、この第１弾性
筒部４ａの外周面は、上記各接触点ａに隣接する
位置a′のみにおいて、ケーシング７の、横断面形
状が真円形の内周面、即ち金属環７ｂの内周面７
b′に接触している。 As clearly shown in FIG. 2 and particularly in FIG. 3A, the first elastic cylindrical portion 4a has a cross-sectional shape that is concentric with the inner circumferential surface of the casing 7 and has a smaller diameter than the inner circumferential surface. Perfect circular elastic cylinder 30
It has the shape of a deformed cylinder that is elastically deformed so as to protrude radially outward at the mounting position a of each planetary roller 6. That is, the cross-sectional shape of the first elastic cylindrical portion 4a is a deformed circle that is a deformed circle centered on the axis of the sun roller 3. This deformation circle is defined by each planetary roller 6 and the first elastic cylinder portion 4a.
The length, that is, the radius connecting the contact point a with the axis of the sun roller 3, is determined by determining the length or radius connecting the contact point a with the axis of the sun roller 3 at points other than the contact point a on the inner circumference of the first elastic cylindrical portion 4a (for example, points b and c in FIG. 3A). It has a shape that is slightly larger than the length connecting the axis and the axis, that is, the radius, and the diameter De passing through all points on the circumference (for example, even the diameter passing through point b in Fig. 3A,
Alternatively, the diameter passing through point c) is centered on the axis of the sun roller and the contact point a between the axis and the axis
The diameter of the undeformed circle whose radius is the length between As is clear from FIG. 2, since the first elastic cylindrical portion 4a is shaped as described above, the outer peripheral surface of the first elastic cylindrical portion 4a is located at a position a adjacent to each of the contact points a. ' only, the inner circumferential surface of the casing 7 whose cross-sectional shape is a perfect circle, that is, the inner circumferential surface 7 of the metal ring 7b.
It is in contact with b′.
上記第１弾性筒部４ａは、後に詳記する如く各
遊星ローラ６が一体になつて太陽ローラ３のまわ
りを公転Ｅする間に半径内方及び外方への弾性変
形をくり返し生じるようになつている。即ち、例
えば各遊星ローラ６が第３Ｂ図のａ点で第１弾性
筒部４ａに接触しているときは第１弾性筒部４ａ
は第３Ａ図の実線で示した形状をなしているが、
遊星ローラ６の公転につれて遊星ローラ６がｅ点
で第１弾性筒部４ａに接触しているときには第１
弾性筒部４ａは第３Ａ図に鎖線で示した形状に弾
性変形されている。そして、このような第１弾性
筒部４ａの変形は、遊星ローラ６が連続的に公転
Ｅする間にくり返し生じる。従つて、遊星ローラ
６の公転の間に、第１弾性筒部とケーシング７と
の接触点a′は常えずケーシングの周方向即ち公転
方向へ移動するのである。 The first elastic cylindrical portion 4a repeatedly undergoes elastic deformation radially inward and outward while each planetary roller 6 integrally revolves around the sun roller 3, as will be described in detail later. ing. That is, for example, when each planetary roller 6 is in contact with the first elastic cylinder part 4a at point a in FIG. 3B, the first elastic cylinder part 4a
has the shape shown by the solid line in Figure 3A,
As the planetary roller 6 revolves, when the planetary roller 6 is in contact with the first elastic cylinder portion 4a at point e, the first
The elastic cylindrical portion 4a is elastically deformed into the shape shown by the chain line in FIG. 3A. Such deformation of the first elastic cylindrical portion 4a occurs repeatedly while the planetary roller 6 continuously revolves E. Therefore, during the revolution of the planetary roller 6, the contact point a' between the first elastic cylinder part and the casing 7 always moves in the circumferential direction of the casing, that is, in the revolution direction.
また、上記の如く第１弾性筒部４ａが半径内外
方へ弾性変形する間に、第２弾性筒部４ｂも半径
内外方へ弾性変形する。即ち第２弾性筒部４ｂは
それ自体が半径内外方へ弾性変形することによつ
て第１弾性筒部４ａの上記した弾性変形を吸収
し、第１弾性筒部４ａの回転を半径方向への変形
を生じない回転体２０に伝達できるようになつて
いる。 Moreover, while the first elastic cylinder part 4a is elastically deformed inwardly and outwardly in the radius as described above, the second elastic cylinder part 4b is also elastically deformed inwardly and outwardly in the radius. That is, the second elastic cylinder part 4b absorbs the above-described elastic deformation of the first elastic cylinder part 4a by elastically deforming itself inward and outward radially, and prevents the rotation of the first elastic cylinder part 4a in the radial direction. It is designed so that it can be transmitted to the rotating body 20 that does not cause deformation.
上記ケーシング７の外周部には一対のフランジ
状突起、即ち第１のフランジ状突起７ｃと第２の
フランジ状突起７ｄが形成されている。第１のフ
ランジ状突起７ｃは、ケーシング７が第１弾性筒
部４ａところがり接触する部分の軸線方向一端部
付近、即ち金属環７ｂの左端（第１図）に隣接す
る位置を通るようにケーシング７の周方向へ延び
る環状突起より構成され、また第２のフランジ状
突起７ｄは、ケーシング７が第１弾性筒部４ａと
ころがり接触する部分の軸線方向他端付近、即ち
金属環７ｂの右端（第１図）に隣接する位置を通
るようにケーシングの周方向へ延びる環状突起よ
り構成されていて、両フランジ状突起は第１及び
第２回転軸１，２の軸線方向へ小距離隔てられた
関係で互に対向している。また、これらフランジ
状突起７ｃ，７ｄには、一方のフランジ状突起７
ｃを貫通して他方のフランジ状突起７ｄに螺合す
る締付けボルト２２が、該フランジ状突起の周方
向の複数箇所に装着されている。上記締付けボル
ト２２は、一対のフランジ状突起７ｃ，７ｄを互
に近づける方向へ締付けることによつてケーシン
グ７を弾性変形させる締付け部材になつており、
その締付けボルトの締付け量を調節することによ
つて太陽ローラ３、遊星ローラ６、弾性筒体４及
びケーシング７の相互間の接触圧を調節できるよ
うになつている。即ち、太陽ローラ３、各遊星ロ
ーラ６、弾性筒体４及びケーシング７の組立てが
完了し、締付けボルト２２を締付けていない第４
Ａ図の状態から締付けボルト２２を締付けて一対
のフランジ状突起７ｃ，７ｄを互に近づける方向
に変位させていくと、第４Ｂ図に示すように、ケ
ーシング７の、両フランジ状突起の間に位置する
部分が第４Ｂ図の下方へ凸になるように弾性的に
わん曲変形する。従つて、締付けボルト２２の締
付け量を調節して上記わん曲変形量を適切なもの
にすることによつて、太陽ローラ３、遊星ローラ
６、弾性筒体４及びケーシング７の相互間の接触
圧を、作動時に滑り、がたつき等が生じないよう
な適切値に設定できるのである。また、上記接触
圧の調節は太陽ローラ、遊星ローラ、弾性筒体及
びケーシングの組立て後に行えるために、これら
が動力伝達装置の作動に伴つて摩耗し接触圧が不
適切になつた場合等に、装置の分解、再組立等を
行わずにその接触圧の調節を行える利点がある。 A pair of flange-like protrusions, namely a first flange-like protrusion 7c and a second flange-like protrusion 7d, are formed on the outer circumference of the casing 7. The first flange-like protrusion 7c is attached to the casing so that it passes near one end in the axial direction of the portion where the casing 7 makes rolling contact with the first elastic cylinder portion 4a, that is, at a position adjacent to the left end (FIG. 1) of the metal ring 7b. The second flange-like projection 7d is located near the other end in the axial direction of the portion where the casing 7 rolls into contact with the first elastic cylinder portion 4a, that is, the right end of the metal ring 7b ( (Fig. 1), which extends in the circumferential direction of the casing, and both flange-like projections are separated by a small distance in the axial direction of the first and second rotating shafts 1 and 2. They are facing each other in a relationship. Furthermore, one of the flange-like projections 7c and 7d has a
Tightening bolts 22 that pass through c and are screwed into the other flange-like projection 7d are attached to a plurality of locations in the circumferential direction of the flange-like projection. The tightening bolt 22 is a tightening member that elastically deforms the casing 7 by tightening the pair of flange-like projections 7c and 7d in a direction that brings them closer together.
By adjusting the amount of tightening of the tightening bolt, the contact pressure between the sun roller 3, planetary roller 6, elastic cylinder 4, and casing 7 can be adjusted. That is, the assembly of the sun roller 3, each planetary roller 6, the elastic cylinder 4, and the casing 7 has been completed, and the fourth
When the tightening bolt 22 is tightened from the state shown in Fig. A to move the pair of flange-like protrusions 7c and 7d closer together, as shown in Fig. 4B, a gap between the flange-like protrusions of the casing 7 is created. The positioned portion is elastically deformed in a curved manner so as to be convex downward as shown in FIG. 4B. Therefore, by adjusting the amount of tightening of the tightening bolt 22 to make the amount of curved deformation appropriate, the contact pressure between the sun roller 3, the planetary roller 6, the elastic cylinder 4, and the casing 7 can be reduced. can be set to an appropriate value that prevents slipping, rattling, etc. during operation. In addition, since the contact pressure can be adjusted after the sun roller, planetary roller, elastic cylinder, and casing are assembled, if these become worn due to operation of the power transmission device and the contact pressure becomes inappropriate, etc. There is an advantage that the contact pressure can be adjusted without disassembling and reassembling the device.
なお、図示実施例においては各フランジ状突起
７ｃ，７ｄはケーシング７の周方向へ連続して延
びる環状突起より構成されているが、このフラン
ジ状突起は必ずしも周方向へ連続する環状突起で
ある必要はなく、一方或いは両方のフランジ状突
起を、固定外輪の周方向へ断続的に延びる複数の
弧状突起から構成することももちろん可能であ
る。 In the illustrated embodiment, each of the flange-like protrusions 7c and 7d is composed of an annular protrusion that extends continuously in the circumferential direction of the casing 7, but the flange-like protrusions do not necessarily have to be continuous annular protrusions in the circumferential direction. Of course, it is also possible to construct one or both of the flange-like projections from a plurality of arcuate projections extending intermittently in the circumferential direction of the fixed outer ring.
図示実施例の動力伝達装置は上記の構成のもの
であつて、入力軸即ち第１回転軸１を一方向Ａへ
回転駆動すれば、第１回転軸１と一体になつた太
陽ローラ３もＡ方向へ回転し、太陽ローラ３にこ
ろがり接触する各遊星ローラ６が矢印Ｃ方向に自
転するとともに、これら遊星ローラ６が一体にな
つて太陽ローラ３のまわりを公転Ｅする。このよ
うにして遊星ローラ６が公転Ｅするときに第１弾
性筒部４ａの外周面とケーシング７の内周面との
接触点a′がケーシングの円周方向へ移動していく
ことは既述の通りであり、この公転に伴い、第１
弾性筒部４ａは、遊星ローラ６の公転Ｅ方向と逆
方向へ回転Ｆする。即ち、第１弾性筒部４ａは、
遊星ローラ６の１回の公転に対して、ケーシング
内周面の周長と第１弾性筒部４ａの外周面の周長
との差に相当する量だけ回転Ｆするのである。従
つて、第２弾性筒体４ｂ及び回転体２０を介して
第１弾性筒体４ａに連結されている出力軸即ち第
２回転軸２は矢印Ｂ方向へ回転するのである。し
かしてこのように第１回転軸１の回転を第２回転
軸に伝達する際の第１回転軸回転数N1rpmと第
２回転軸回転数N2rpmとの関係は次式で表わさ
れる。 The power transmission device of the illustrated embodiment has the above-mentioned configuration, and if the input shaft, that is, the first rotating shaft 1 is rotationally driven in one direction A, the sun roller 3 integrated with the first rotating shaft 1 also rotates in the direction A. The planetary rollers 6 rotate in the direction of the arrow C and roll in contact with the sun roller 3, and rotate in the direction of the arrow C, and these planetary rollers 6 integrally revolve around the sun roller 3 E. As mentioned above, when the planetary roller 6 revolves E, the contact point a' between the outer circumferential surface of the first elastic cylinder part 4a and the inner circumferential surface of the casing 7 moves in the circumferential direction of the casing. With this revolution, the first
The elastic cylindrical portion 4a rotates F in a direction opposite to the direction E of revolution of the planetary roller 6. That is, the first elastic cylinder portion 4a is
For one revolution of the planetary roller 6, the planetary roller 6 rotates F by an amount corresponding to the difference between the circumferential length of the inner circumferential surface of the casing and the circumferential length of the outer circumferential surface of the first elastic cylindrical portion 4a. Therefore, the output shaft, that is, the second rotating shaft 2, which is connected to the first elastic cylinder 4a via the second elastic cylinder 4b and the rotating body 20, rotates in the direction of arrow B. However, when the rotation of the first rotating shaft 1 is transmitted to the second rotating shaft in this way, the relationship between the first rotating shaft rotation speed N 1 rpm and the second rotating shaft rotation speed N 2 rpm is expressed by the following equation. .
N1／N2＝１／Ｋ・（De／ｄ＋１）（D3／D3−De′＋１
）
但し、上式において、Ｋはスリツプ率（０＜Ｋ
＜１）、ｄは太陽ローラ３の外径、Deは第１弾性
筒部４ａの内径、De′は第１弾性筒部の外径、D3
は金属環７ｂの内径を示している。 N 1 /N 2 =1/K・(De/d+1)(D 3 /D 3 −De′+1
) However, in the above formula, K is the slip rate (0<K
<1), d is the outer diameter of the sun roller 3, De is the inner diameter of the first elastic cylinder part 4a, De' is the outer diameter of the first elastic cylinder part, D 3
indicates the inner diameter of the metal ring 7b.
上式より明らかな如く、第１回転軸及び第２回
転軸をそれぞれ入力軸及び出力軸として使用すれ
ば、入力軸回転をかなり大きな比率で減速して出
力軸に伝達することができる。なお、図示実施例
では第１回転軸及び第２回転軸をそれぞれ入力軸
及び出力軸として構成しているが、第２回転軸及
び第１回転軸をそれぞれ入力軸及び出力軸とし
て、入力軸回転を増速して出力軸に伝達する構成
にすることは、もちろん可能である。 As is clear from the above equation, if the first rotating shaft and the second rotating shaft are used as the input shaft and the output shaft, respectively, the rotation of the input shaft can be decelerated at a considerably large ratio and transmitted to the output shaft. In the illustrated embodiment, the first rotating shaft and the second rotating shaft are configured as the input shaft and the output shaft, respectively. Of course, it is possible to increase the speed and transmit it to the output shaft.
以上より明らかな如く、本考案の遊星ローラ式
動力伝達装置は、第１回転軸と第２回転軸との間
での動力の伝達を行うようになつている。特に、
本考案においては、変形円筒の形状をなして遊星
ローラを包囲しこれところがり接触する第１弾性
筒部と、第２弾性筒部とを有し、作動時に常えず
弾性変形をくり返す弾性筒体を設け、その弾性筒
体の第２弾性筒部を、第２回転軸と一体に回転す
る回転体に連結することによつて、弾性筒体と第
２回転軸とを一体回転させる構成になつているた
めに、太陽ローラと一体になつた第１回転軸の回
転を大きな比率で減速して第２回転軸に伝達し、
或いは第２回転軸の回転を大きな比率で増速して
第１回転軸に伝達できる利点がある。 As is clear from the above, the planetary roller type power transmission device of the present invention is adapted to transmit power between the first rotating shaft and the second rotating shaft. especially,
The present invention has a first elastic cylindrical part that has a deformed cylindrical shape, surrounds the planetary roller, comes into contact with the planetary roller, and a second elastic cylindrical part, and has an elastic cylindrical part that constantly undergoes elastic deformation during operation. A configuration in which the elastic cylinder and the second rotation shaft are rotated together by providing a cylinder and connecting the second elastic cylinder part of the elastic cylinder to a rotating body that rotates together with the second rotation shaft. Because of this, the rotation of the first rotating shaft that is integrated with the sun roller is decelerated at a large rate and transmitted to the second rotating shaft,
Alternatively, there is an advantage that the rotation of the second rotating shaft can be increased in speed at a large rate and transmitted to the first rotating shaft.
また、ケーシング、弾性筒体、遊星ローラ及び
太陽ローラの相互間の回転の伝達は全てころがり
接触によつて行われるために、そのころがり接触
圧を適宜の方法で適切に調節すれば、滑り、がた
つき等が生じず、かつ振動、騒音等を伴わない高
精度の作動を行えるものである。 In addition, since the transmission of rotation among the casing, elastic cylinder, planetary roller, and sun roller is all done through rolling contact, slipping can be prevented by appropriately adjusting the rolling contact pressure using an appropriate method. It is capable of highly accurate operation without causing any sagging, vibration, noise, etc.
また、本発明においては、ケーシングの外周部
に第１及び第２のフランジ状突起が設けられると
ともに、これらフランジ状突起を締付ける締付け
部材が設けられている。従つて、締付け部材によ
つてそれらフランジ状突起を互いに近付ける方向
へ適当量締付けることによつて、ケーシング、第
１弾性筒部、遊星ローラ及び太陽ローラの相互間
の接触圧の調節を好適に行える利点がある。 Further, in the present invention, first and second flange-like projections are provided on the outer peripheral portion of the casing, and a tightening member for tightening these flange-like projections is provided. Therefore, by tightening the flange-like protrusions by an appropriate amount in a direction toward each other using the tightening member, the contact pressure between the casing, the first elastic cylinder, the planetary roller, and the sun roller can be suitably adjusted. There are advantages.
第１図は本考案実施例の遊星ローラ式動力伝達
装置を示す縦断面図、第２図は第１図の−断
面図、第３Ａ図は上記動力伝達装置に使用されて
いる弾性筒体の第１弾性筒部の形状を示す説明
図、第３Ｂ図は上記動力伝達装置の作動時に第１
弾性筒部が変形する状態を示す説明図、第４Ａ図
及び第４Ｂ図は締付けボルトを締付けることによ
つて太陽ローラ、遊星ローラ、第１弾性筒部及び
ケーシングの相互間の接触圧を調節する原理を説
明する部分断面図である。
１……第１回転軸、２……第２回転軸、３……
太陽ローラ、４……弾性筒体、４ａ……第１弾性
筒部、４ｂ……第２弾性筒部、５……環状空間、
６……遊星ローラ、７……ケーシング、７ｃ……
第１のフランジ状突起、７ｄ……第２のフランジ
状突起、９……キヤリヤ、２０……回転体、２２
……締付けボルト。
FIG. 1 is a longitudinal cross-sectional view showing a planetary roller type power transmission device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view along the line shown in FIG. FIG. 3B is an explanatory diagram showing the shape of the first elastic cylindrical portion, and FIG.
FIGS. 4A and 4B are explanatory diagrams showing a state in which the elastic cylindrical portion is deformed, and the contact pressure between the sun roller, the planetary roller, the first elastic cylindrical portion, and the casing is adjusted by tightening the tightening bolt. It is a partial sectional view explaining a principle. 1...First rotation axis, 2...Second rotation axis, 3...
Sun roller, 4... Elastic cylindrical body, 4a... First elastic cylindrical part, 4b... Second elastic cylindrical part, 5... Annular space,
6... Planetary roller, 7... Casing, 7c...
First flange-like projection, 7d... Second flange-like projection, 9... Carrier, 20... Rotating body, 22
...Tightening bolt.
Claims (1)
グ内にその内周面と同心関係に装着されかつ互に
同一軸線上に配列されている第１回転軸及び第２
回転軸と、第１回転軸に同心関係に固定された太
陽ローラと、太陽ローラを包囲する第１弾性筒
部、及び第１弾性筒部に一端が連結されかつ第２
回転軸と一体に回転する回転体に他端が連結され
ている第２弾性筒部を有する弾性筒体と、太陽ロ
ーラと第１弾性筒部との間の環状空間内に装着さ
れて太陽ローラの外周面と第１弾性筒部の内周面
とにころがり接触し、かつ第１回転軸上に回転可
能に装着されたキヤリヤによつて支持されている
複数の遊星ローラとを備えるとともに、上記第１
弾性筒部が、上記ケーシングの内周面と同心関係
をなしかつその内周面より小さな直径を有する弾
性円筒を、各遊星ローラの装着位置において半径
外方へ突出させるように弾性変形させた変形円筒
の形状になつており、上記第１弾性筒部の外周面
の、各遊星ローラに隣接する部分のみがケーシン
グの内周面と接触する構成になつており、また上
記ケーシングの外周部には、そのケーシングが第
１弾性筒部ところがり接触する部分の軸線方向一
端部付近及びその他端部付近の位置からそれぞれ
半径方向外方へ突出し、互いに小さな距離隔てら
れて対向する第１及び第２のフランジ状突起が設
けられるとともに、これらフランジ状突起を互い
に近付ける方向へ適当量締付けることによつてケ
ーシング、第１弾性筒部、遊星ローラ及び太陽ロ
ーラの相互間の接触圧を調節するための締付け部
材が設けられていることを特徴とする遊星ローラ
式動力伝達装置。 A first rotating shaft and a second rotating shaft are mounted in a casing having a circumferential surface with a perfect circular cross-sectional shape and are installed concentrically with the inner circumferential surface of the casing and are mutually arranged on the same axis.
a rotating shaft, a sun roller fixed concentrically to the first rotating shaft, a first elastic cylinder surrounding the sun roller, and a second elastic cylinder having one end connected to the first elastic cylinder.
An elastic cylindrical body having a second elastic cylindrical part whose other end is connected to a rotating body that rotates integrally with the rotating shaft, and a sun roller mounted in an annular space between the sun roller and the first elastic cylindrical part. and a plurality of planetary rollers that are in rolling contact with the outer circumferential surface of the first elastic tube and the inner circumferential surface of the first elastic cylindrical portion and are supported by a carrier rotatably mounted on the first rotating shaft, and 1st
A deformation in which the elastic cylindrical portion elastically deforms an elastic cylinder that is concentric with the inner circumferential surface of the casing and has a smaller diameter than the inner circumferential surface so as to protrude radially outward at the mounting position of each planetary roller. It has a cylindrical shape, and only a portion of the outer circumferential surface of the first elastic cylinder portion adjacent to each planetary roller contacts the inner circumferential surface of the casing. , protruding radially outward from positions near one end in the axial direction and near the other end of the portion where the casing makes rolling contact with the first elastic cylindrical portion, and facing each other with a small distance between them. A tightening member that is provided with flange-like projections and adjusts the contact pressure between the casing, the first elastic cylinder, the planetary roller, and the sun roller by tightening the flange-like projections by an appropriate amount in a direction toward each other. A planetary roller type power transmission device characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP436584U JPS60116451U (en) | 1984-01-17 | 1984-01-17 | Planetary roller type power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP436584U JPS60116451U (en) | 1984-01-17 | 1984-01-17 | Planetary roller type power transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60116451U JPS60116451U (en) | 1985-08-06 |
| JPH0144856Y2 true JPH0144856Y2 (en) | 1989-12-25 |
Family
ID=30479862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP436584U Granted JPS60116451U (en) | 1984-01-17 | 1984-01-17 | Planetary roller type power transmission device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116451U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100786205B1 (en) | 2006-12-21 | 2007-12-17 | 한국과학기술연구원 | Harmonic drive |
-
1984
- 1984-01-17 JP JP436584U patent/JPS60116451U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60116451U (en) | 1985-08-06 |
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