JP2575597Y2 - Friction transmission type wave transmission - Google Patents
Friction transmission type wave transmissionInfo
- Publication number
- JP2575597Y2 JP2575597Y2 JP1992059361U JP5936192U JP2575597Y2 JP 2575597 Y2 JP2575597 Y2 JP 2575597Y2 JP 1992059361 U JP1992059361 U JP 1992059361U JP 5936192 U JP5936192 U JP 5936192U JP 2575597 Y2 JP2575597 Y2 JP 2575597Y2
- Authority
- JP
- Japan
- Prior art keywords
- flexible member
- rigid member
- frictional engagement
- friction
- transmission
- 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 - Lifetime
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- Retarders (AREA)
- Friction Gearing (AREA)
Description
【考案の詳細な説明】[Detailed description of the invention]
【０００１】[0001]
【産業上の利用分野】本考案は摩擦伝動方式により要素
間のトルク伝達を行う調和変速装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harmonic transmission that transmits torque between elements by a friction transmission method.
【０００２】[0002]
【従来の技術】摩擦伝動式波動変速装置としては、その
可撓性部材がカップ形状をしているカップ型と呼ばれる
波動変速装置がある。この波動変速装置は、一般的には
減速装置として利用され、また増速装置として利用され
ることもある。この変速装置は、内周面が摩擦係合面と
なっている環状の剛性部材と、外周面が摩擦係合面とな
っているカップ形状の可撓性部材とを有しており、波動
発生器によって可撓性部材を例えば楕円形状に撓めて、
楕円長軸方向の両端位置で双方の部材の摩擦係合面を係
合させ、この状態で波動発生器を回転させることによ
り、２個所の係合位置を周方向の移動させるようになっ
ている。このように摩擦係合位置が周方向に移動する
と、剛性部材および可撓性部材の摩擦係合面の周長差に
応じた相対回転が、これら両部材間に発生する。したが
っって、一方の部材を固定しておけば、他方の部材の側
から大幅に減速された減速回転を得ることができる。2. Description of the Related Art As a friction transmission type wave transmission, there is a so-called cup type transmission in which a flexible member has a cup shape. This wave transmission is generally used as a speed reducer, and may also be used as a speed increasing device. This transmission has an annular rigid member having an inner peripheral surface serving as a frictional engagement surface, and a cup-shaped flexible member having an outer peripheral surface serving as a frictional engagement surface. The flexible member is bent into, for example, an elliptical shape by a container,
By engaging the frictional engagement surfaces of both members at both end positions in the elliptical long axis direction, and rotating the wave generator in this state, the two engagement positions are moved in the circumferential direction. . When the friction engagement position moves in the circumferential direction in this way, a relative rotation occurs between the frictional engagement surfaces of the rigid member and the flexible member in accordance with the difference in peripheral length between the two members. Therefore, if one member is fixed, it is possible to obtain a greatly reduced rotation from the side of the other member.
【０００３】[0003]
【考案が解決しようとする課題】このような摩擦伝動式
波動変速装置においては、カップ形状をした可撓性部材
のコーニングにより、この可撓性部材と剛性部材の間の
線接触している各部分に周速差が生じており、このため
に、適正な接触状態を形成できず、接触面に望ましくな
い磨耗が発生するなどの解決すべき課題がある。 In such a friction transmission type wave transmission, a cup-shaped flexible member is used.
Of the flexible member and the rigid member
There is a difference in the peripheral speed between the parts that are in line contact,
The contact surface cannot be formed properly,
There are problems to be solved, such as the occurrence of excessive wear.
【０００４】また、摩擦伝動式波動変速装置において
は、歯車式の波動変速装置に比べてトルク伝達特性が低
い。したがって、トルク伝達特性を向上させることもこ
の摩擦伝動式波動変速装置における課題の一つとなって
いる。 Further, a friction transmission type wave transmission has a lower torque transmission characteristic than a gear type wave transmission.
No. Therefore, it is also necessary to improve the torque transmission characteristics.
Problem of friction transmission type wave transmission
I have.
【０００５】本考案の課題は、このような従来の摩擦伝
動式波動変速装置における問題点を解消することにあ
る。[0005] An object of the present invention is to eliminate the problems in the conventional friction transmission type wave transmission.
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決するた
めに、本考案においては、内周面が摩擦係合面となって
いる環状の剛性部材と、この内側に配置され、外周面が
摩擦係合面となっているカップ形状の可撓性部材と、こ
の可撓性部材の内側に配置され、当該可撓性部材を半径
方向に撓めて前記剛性部材に対して部分的に係合させる
と共に、これらの係合位置を周方向に移動させる波動発
生器とを有する摩擦伝動式波動変速装置において、剛性
部材および可撓性部材の係合状態が、装置軸線方向に見
た場合に点接触状態となるように、当該剛性部材および
可撓性部材の摩擦係合面の断面形状を設定する構成を採
用している。このように摩擦係合を点接触状態にする
と、線接触の場合のようなカップ型可撓性部材のコーニ
ングに起因した不適正な接触状態を解消することができ
る。 In order to solve the above-mentioned problems, in the present invention, an annular rigid member having an inner peripheral surface serving as a frictional engagement surface, a ring-shaped rigid member disposed inside the annular rigid member, and an outer peripheral surface having A cup-shaped flexible member serving as a frictional engagement surface, and a flexible member disposed inside the flexible member and radially bending the flexible member to partially engage the rigid member. together engaged in frictional transmission type wave gear device having a wave generator for moving these engagement positions in the circumferential direction, rigidity
The engagement state of the member and the flexible member is viewed in the axial direction of the device.
The rigid member and the
The configuration for setting the cross-sectional shape of the frictional engagement surface of the flexible member is adopted.
I use it. Put frictional engagement in point contact state
And a cup-shaped flexible member cone as in the case of line contact
Improper contact caused by
You.
【０００７】ここに、このような点接触状態を形成する
ためには、剛性部材および可撓性部材の少なくとも一方
の摩擦係合面の装置軸線方向の断面形状を凸曲線により
規定されるものとすればよい。あるいは、剛性部材およ
び可撓性部材の一方の摩擦係合面の装置軸線方向の断面
形状を凸曲線により規定される形状とし、他方の摩擦係
合面の装置軸線方向の断面形状を凹曲線により規定され
る形状とすればよい。 Here, such a point contact state is formed.
For at least one of a rigid member and a flexible member
The cross-sectional shape of the frictional engagement surface of
What is necessary is just to be prescribed. Alternatively, a rigid member and
Of the frictional engagement surface of one of the flexible members
The shape is defined by the convex curve, and the other friction
The cross-sectional shape of the mating surface in the axial direction of the device is specified by a concave curve.
Shape.
【０００８】また、点接触状態としたことに起因したト
ルク伝達特性の低下を抑制するためには、剛性部材およ
び可撓性部材の摩擦係合面の間に高摩擦係数を有する弾
性部材を介在させるようにすればよい。 [0008] Also, the point caused by the point contact state
In order to suppress the deterioration of torque transfer characteristics, rigid members and
Having a high coefficient of friction between the friction engagement surfaces of the flexible member and the flexible member.
What is necessary is just to make it interpose a sex member.
【０００９】このような弾性部材としては、硬質ゴム材
などを挙げることができる。弾性部材を介在させるため
には、剛性部材および可撓性部材の一方の摩擦係合面あ
るいは双方の摩擦係合面に弾性部材を張り付けるように
すればよい。このように高摩擦係数の弾性部材を介在さ
せることにより、伝達トルク特性が改善されると共に、
摩擦係合により発生する騒音が低減される。 As such an elastic member, a hard rubber material is used.
And the like. To interpose an elastic member
Has a friction engagement surface on one of the rigid member and the flexible member.
Or attach elastic members to both friction engagement surfaces.
do it. Thus, the elastic member with a high coefficient of friction is interposed
By doing so, while the transmission torque characteristics are improved,
Noise generated by frictional engagement is reduced.
【００１０】一方、弾性部材を用いる代わりに、剛性部
材および可撓性部材の摩擦係合面のうちの一方がＮ極に
帯磁し、他方をＳ極に帯磁して、磁気吸引力を利用して
トルク伝達特性を改善するようにしてもよい。 On the other hand, instead of using the elastic member, one of the frictional engagement surfaces of the rigid member and the flexible member is magnetized to the N-pole and the other is magnetized to the S-pole, and the magnetic attractive force is used. Thus, the torque transmission characteristics may be improved.
【００１１】[0011]
【実施例】以下に、図面を参照して本考案の実施例を説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１２】図１および図２には本考案の一実施例のカ
ップ型摩擦伝動式波動変速装置を減速機として利用した
場合を示してある。図示のカップ型波動変速装置１は、
円環状をした剛性部材２と、この内側に装着されたカッ
プ形状をした可撓性部材３と、この可撓性部材３の内側
に装着された波動発生器４から構成されている。剛性部
材２の内周面は摩擦係合面２ａとされ、カップ形状の可
撓性部材３の開放端側の外周面は、この摩擦係合面２ａ
に係合可能な摩擦係合面３ａとされている。剛性部材の
側の摩擦係合面２ａの周長は、可撓性部材の側の摩擦係
合面３ａの周長よりも長くなるように設定されている。
波動発生器４は、楕円形状をしたカム板４ａと、この外
周面に嵌めたボールベアリング４ｂから構成され、カム
板４ａに高速回転入力軸（図示せず）が連結されてい
る。剛性部材２の側は図において一点鎖線で表されてい
る締結ボルト５によって固定部材（図示ぜず）の側に固
定されている。これに対して、カップ形状の可撓性部材
３のカップ底面部分を構成しているボス３ｂの側は、減
速回転出力部材（図示せず）の側に連結されている。FIGS. 1 and 2 show a case in which a cup-type friction transmission type wave transmission according to one embodiment of the present invention is used as a speed reducer. The illustrated cup-type wave transmission 1 includes:
An annular rigid member 2, a cup-shaped flexible member 3 mounted inside the rigid member 2, and a wave generator 4 mounted inside the flexible member 3. The inner peripheral surface of the rigid member 2 is a friction engagement surface 2a, and the outer peripheral surface of the cup-shaped flexible member 3 on the open end side is the friction engagement surface 2a.
Is formed as a frictional engagement surface 3a that can be engaged with. The peripheral length of the frictional engagement surface 2a on the rigid member side is set to be longer than the peripheral length of the frictional engagement surface 3a on the flexible member side.
The wave generator 4 is composed of an elliptical cam plate 4a and a ball bearing 4b fitted on the outer peripheral surface thereof, and a high-speed rotation input shaft (not shown) is connected to the cam plate 4a. The side of the rigid member 2 is fixed to the side of a fixing member (not shown) by a fastening bolt 5 indicated by a dashed line in the figure. On the other hand, the side of the boss 3b constituting the cup bottom surface portion of the cup-shaped flexible member 3 is connected to the side of the reduced rotation output member (not shown).
【００１３】可撓性部材３は波動発生器４によって楕円
形状に撓められて、楕円の長軸両端の２個所で剛性部材
２の側に接触している。波動発生器４が高速回転する
と、２個所の接触位置が周方向に移動し、これによっ
て、剛性部材および可撓性部材の周長差に応じた相対回
転が、これら両部材２、３の間に発生する。剛性部材２
の側は固定されているので、可撓性部材３が回転し、こ
の回転が減速回転出力として取り出される。The flexible member 3 is bent into an elliptical shape by the wave generator 4, and is in contact with the rigid member 2 at two locations on both ends of the major axis of the ellipse. When the wave generator 4 rotates at a high speed, the two contact positions move in the circumferential direction, so that the relative rotation according to the difference in the circumferential length between the rigid member and the flexible member is performed between the two members 2 and 3. Occurs. Rigid member 2
Is fixed, the flexible member 3 rotates, and this rotation is taken out as a reduced rotation output.
【００１４】ここに、本例においては、剛性部材２の摩
擦係合面２ａの側はＮ極に帯磁されており、可撓性部材
３の摩擦係合面３ａの側はＳ極に帯磁されている。した
がって、本例においては、摩擦接触している両部材の摩
擦係合面２ａ、３ａの部分は、波動発生器４による機械
的な押しつけ力と磁気吸引力によって相互に接触した状
態となる。よって、従来の摩擦伝動式の調和減速機に比
べて、両部材間の接触圧を増加させて摩擦力を高めるこ
とができる。このため、摩擦接触部分を介してのトルク
伝達特性を向上させることができる。In this embodiment, the frictional engagement surface 2a of the rigid member 2 is magnetized to the N pole, and the frictional engagement surface 3a of the flexible member 3 is magnetized to the S pole. ing. Therefore, in this example, the frictional engagement surfaces 2a and 3a of the two members that are in frictional contact come into contact with each other due to the mechanical pressing force and the magnetic attraction force of the wave generator 4. Therefore, as compared with a conventional friction transmission type harmonic reduction gear, the contact pressure between both members can be increased to increase the frictional force. For this reason, it is possible to improve the torque transmission characteristic via the friction contact portion.
【００１５】なお、本例とは逆に、剛性部材２の側をＳ
極に帯磁し、可撓性部材３の側をＮ極の帯磁させてもよ
いことは勿論である。Incidentally, contrary to the present embodiment, the rigid member 2 side is S
It is needless to say that the magnetic pole may be magnetized, and the flexible member 3 may be magnetized to the N pole.
【００１６】図３には、本考案を適用したカップ型摩擦
伝動式波動変速装置の別の例を示してある。本例の減速
機の全体構成は図１に示すものと同様であるが、本例に
おいては、金属製の剛性部材２の摩擦係合面２ａと、同
じく金属製の可撓性部材３の摩擦係合面３ａの間に硬質
ゴム材７を介在させた構造としてある。硬質ゴム材７
は、剛性部材２の側あるいは可撓性部材３の側、また
は、双方に張り付けられる。FIG. 3 shows another example of a cup-type friction transmission type wave transmission according to the present invention. Although the overall configuration of the speed reducer of this embodiment is the same as that shown in FIG. 1, in this embodiment, the frictional engagement surface 2a of the metal rigid member 2 and the friction of the metal flexible member 3 The structure is such that a hard rubber material 7 is interposed between the engagement surfaces 3a. Hard rubber material 7
Is attached to the side of the rigid member 2 or the side of the flexible member 3, or both.
【００１７】このように摩擦係数の高い硬質ゴム材７を
介在させることによって、両部材２、３の間の摩擦力が
増加して、ここを介してのトルク伝達特性が向上する。
また、硬質ゴム材７を介在させることによって、両部材
の摩擦係合に伴って発生する騒音を抑制することもでき
る。By interposing the hard rubber material 7 having a high friction coefficient as described above, the frictional force between the two members 2 and 3 is increased, and the torque transmission characteristics therethrough is improved.
Further, the noise generated due to the frictional engagement between the two members can be suppressed by interposing the hard rubber material 7.
【００１８】なお、両部材２、３の間に介在させる部材
としては、高摩擦係数を有する弾性部材であれば、硬質
ゴム材以外の素材を用いてもよいことは勿論である。ま
た、本例においても、剛性部材２および可撓性部材３を
反対極性となるように帯磁させれば、磁気吸引力を利用
して更にトルク伝達特性を改善することができる。As a member interposed between the two members 2 and 3, it is a matter of course that a material other than a hard rubber material may be used as long as it is an elastic member having a high friction coefficient. Also in this example, if the rigid member 2 and the flexible member 3 are magnetized to have opposite polarities, the torque transmission characteristics can be further improved by utilizing the magnetic attraction.
【００１９】次に、図４、５、６、７には、本考案を適
用した更に別のカップ型摩擦伝動式波動変速装置をそれ
ぞれ示してある。これらの例の全体構成は、図１に示す
減速機と同様である。しかし、これらの例においては、
剛性部材２の摩擦係合面２ａと可撓性部材３の摩擦係合
面３ａとの間に点接触状態を形成している。FIGS. 4, 5, 6, and 7 show still another cup-type friction-transmission-type wave transmission to which the present invention is applied. The overall configuration of these examples is the same as that of the speed reducer shown in FIG. However, in these examples,
A point contact state is formed between the friction engagement surface 2a of the rigid member 2 and the friction engagement surface 3a of the flexible member 3.
【００２０】まず、図４に示す例においては、剛性部材
２の側の摩擦係合面２ａの装置軸線方向の断面形状を凸
曲線によって規定される形状としてある。本例では、こ
の凸曲線は円弧であり、円弧の中心は、波動発生器４の
ボールベアリング４ｂの中心線Ｃ上に位置させてある。
これに対して、可撓性部材３の側の摩擦係合面３ａの装
置軸線方向の断面形状を直線により規定される平坦な形
状としてある。First, in the example shown in FIG. 4, the sectional shape of the frictional engagement surface 2a on the side of the rigid member 2 in the axial direction of the device is defined by a convex curve. In this example, the convex curve is an arc, and the center of the arc is located on the center line C of the ball bearing 4b of the wave generator 4.
On the other hand, the sectional shape of the frictional engagement surface 3a on the side of the flexible member 3 in the axial direction of the device is a flat shape defined by a straight line.
【００２１】このように双方の摩擦係合面２ａ、３ａを
規定することにより、双方の摩擦係合状態を、装置軸線
方向に見た場合に、ベアリング中心線Ｃ上での点接触状
態とすることができる。したがって、カップ形状の可撓
性部材３の開放端側が波動発生器４によって楕円形状に
撓まされることによって生ずるコーニングに起因した不
適正な線接触状態を回避できる。By defining the two friction engagement surfaces 2a and 3a in this way, the two friction engagement states are set to point contact states on the bearing center line C when viewed in the axial direction of the apparatus. be able to. Therefore, it is possible to avoid an inappropriate line contact state due to the coning caused by the open end side of the cup-shaped flexible member 3 being bent into an elliptical shape by the wave generator 4.
【００２２】図５に示す例は、図４の例とは逆に、可撓
性部材３の摩擦係合面３ａの断面形状を凸曲面としたも
のである。この場合においても点接触状態を形成するこ
とができる。The example shown in FIG. 5 is different from the example shown in FIG. 4 in that the sectional shape of the frictional engagement surface 3a of the flexible member 3 is a convex curved surface. Also in this case, a point contact state can be formed.
【００２３】図６に示す例は、剛性部材および可撓性部
材の摩擦係合面２ａ、３ａの双方共に凸曲面としたもの
である。In the example shown in FIG. 6, both the frictional engagement surfaces 2a and 3a of the rigid member and the flexible member are formed as convex curved surfaces.
【００２４】図７に示す例は、剛性部材２の摩擦係合面
２ａの側を凹曲面とし、可撓性部材３の摩擦係合面３ａ
をそれよりも曲率の大きな凸曲面としたものである。こ
の構成によっても両部材の点接触状態を形成することが
できる。この例とは逆に、剛性部材の側の摩擦係合面２
ａを凹曲面とし、可撓性部材の側の摩擦係合面３ａを凸
曲面とすることによって、点接触状態を形成することも
できる。In the example shown in FIG. 7, the side of the frictional engagement surface 2a of the rigid member 2 is formed as a concave curved surface, and the frictional engagement surface 3a of the flexible member 3 is formed.
Is a convex curved surface having a larger curvature. With this configuration, a point contact state between the two members can be formed. Contrary to this example, the frictional engagement surface 2 on the rigid member side
A point contact state can also be formed by making a a concave curved surface and making the frictional engagement surface 3a on the flexible member side a convex curved surface.
【００２５】ここに、このように両部材２、３の点接触
状態を形成した場合には、その接触部分を介してのトル
ク伝達特性が低下する傾向となる。この低下を抑制する
ためには、図１に示す例のように、双方の部材を逆極性
に帯磁して磁気吸引力を利用して点接触部分の摩擦力を
高めて、トルク伝達特性を向上させるようにすればよ
い。また、図３に示す例のように、双方の部材の摩擦係
合面の間に硬質ゴム材を介在させて、点接触部分の摩擦
力を高めるようにしてもよい。Here, when the point contact state of the two members 2 and 3 is formed as described above, the torque transmission characteristic via the contact portion tends to decrease. In order to suppress this decrease, as shown in the example of FIG. 1, both members are magnetized to opposite polarities, and the frictional force at the point contact portion is increased by utilizing the magnetic attraction force to improve the torque transmission characteristics. What should be done is. Further, as in the example shown in FIG. 3, a hard rubber material may be interposed between the friction engagement surfaces of both members to increase the frictional force at the point contact portion.
【００２６】[0026]
【考案の効果】以上説明したように、本考案において
は、内周面が摩擦係合面となっている環状の剛性部材
と、この内側に配置され、外周面が摩擦係合面となって
いるカップ形状の可撓性部材と、この可撓性部材の内側
に配置され、当該可撓性部材を半径方向に撓めて前記剛
性部材に対して部分的に係合させると共に、これらの係
合位置を周方向に移動させる波動発生器とを有する摩擦
伝動式波動変速装置において、剛性部材および可撓性部
材の係合状態が、装置軸線方向に見た場合に点接触状態
となるように、当該剛性部材および可撓性部材の摩擦係
合面の断面形状を設定する構成を採用している。このよ
うに摩擦係合を点接触状態にすると、線接触の場合のよ
うなカップ型可撓性部材のコーニングに起因した不適正
な接触状態を解消することができる。 As described above, in the present invention, an annular rigid member having an inner peripheral surface serving as a frictional engagement surface, and an annular rigid member disposed inside the annular rigid member and having an outer peripheral surface serving as a frictional engagement surface. A flexible member in the shape of a cup, which is disposed inside the flexible member, and flexes the flexible member in the radial direction to partially engage the rigid member; A rigid member and a flexible part in a friction transmission type wave transmission having a wave generator for moving a combined position in a circumferential direction.
The point of contact is when the engagement state of the material is viewed in the axial direction of the device.
So that the rigid member and the flexible member
A configuration for setting the cross-sectional shape of the mating surface is adopted. This
If the frictional engagement is in point contact as in the case of line contact,
Improperness due to corning of cup-shaped flexible members
Contact state can be eliminated.
【００２７】また、本考案においては、剛性部材および
可撓性部材の摩擦係合面の間に、硬質ゴム等に代表され
る高摩擦係数を有する弾性部材を介在させた構成を採用
している。このように高摩擦係数の弾性部材を介在させ
ることにより、両部材の接触部分の摩擦力を高めてトル
ク伝達特性を向上させることができる。また、摩擦係合
により発生する騒音を低減することもできる。Further, the present invention employs a configuration in which an elastic member having a high friction coefficient represented by hard rubber or the like is interposed between the frictional engagement surfaces of the rigid member and the flexible member. . By thus interposing the elastic member having a high friction coefficient, the frictional force at the contact portion between the two members can be increased, and the torque transmission characteristics can be improved. Also, noise generated by frictional engagement can be reduced.
【００２８】さらに、本考案においては、剛性部材およ
び可撓性部材の摩擦係合面のうちの一方をＮ極に帯磁
し、他方をＳ極に帯磁した構成を採用している。このよ
うにすると、双方の摩擦係合面の間に働く磁気吸引力を
利用することによって、双方の部材の接触圧が高まり、
そこを介してのトルク伝達特性を向上させることができ
る。 Further, in the present invention, the rigid member and
And one of the friction engagement surfaces of the flexible member is magnetized to the N pole.
The other is magnetized to the S pole. This
The magnetic attraction force acting between the two friction engagement surfaces
By using, the contact pressure of both members increases,
Through which the torque transmission characteristics can be improved
You.
【図１】本考案を適用したカップ型の摩擦伝動式波動変
速装置を示す断面図である。FIG. 1 is a cross-sectional view showing a cup-type friction transmission type wave transmission according to the present invention.
【図２】図１の変速装置の端面図である。FIG. 2 is an end view of the transmission shown in FIG. 1;
【図３】本考案の別の実施例の変速装置における摩擦係
合部分を示す部分断面図である。FIG. 3 is a partial cross-sectional view illustrating a friction engagement portion of the transmission according to another embodiment of the present invention.
【図４】本考案の更に別の実施例の変速装置における点
接触状態にある摩擦係合部分を示す部分断面図である。FIG. 4 is a partial sectional view showing a friction engagement portion in a point contact state in a transmission according to still another embodiment of the present invention.
【図５】本考案の更に別の実施例の変速装置における点
接触状態にある摩擦係合部分を示す部分断面図である。FIG. 5 is a partial sectional view showing a friction engagement portion in a point contact state in a transmission according to still another embodiment of the present invention.
【図６】本考案の更に別の実施例の変速装置における点
接触状態にある摩擦係合部分を示す部分断面図である。FIG. 6 is a partial sectional view showing a friction engagement portion in a point contact state in a transmission according to still another embodiment of the present invention.
【図７】本考案の更に別の実施例の変速装置における点
接触状態にある摩擦係合部分を示す部分断面図である。FIG. 7 is a partial sectional view showing a friction engagement portion in a point contact state in a transmission according to still another embodiment of the present invention.
１・・・摩擦伝動式波動変速装置 ２・・・剛性部材 ２ａ・・・摩擦係合面 ３・・・可撓性部材 ３ａ・・・摩擦係合面 ４・・・波動発生器 ７・・・硬質ゴム Ｃ・・・ベアリング中心線 DESCRIPTION OF SYMBOLS 1 ... Friction transmission type wave transmission 2 ... Rigid member 2a ... Friction engagement surface 3 ... Flexible member 3a ... Friction engagement surface 4 ... Wave generator 7 ...・ Hard rubber C ・ ・ ・ Bearing center line
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) F16H 13/08 F16H 1/32──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) F16H 13/08 F16H 1/32
Claims (5)
剛性部材と、この内側に配置され、外周面が摩擦係合面
となっている環状の可撓性部材と、この可撓性部材の内
側に配置され、当該可撓性部材を半径方向に撓めて前記
剛性部材に対して部分的に係合させると共に、これらの
係合位置を周方向に移動させる波動発生器とを有し、前
記剛性部材および可撓性部材の係合状態が、装置軸線方
向に見た場合に点接触状態となるように、当該剛性部材
および可撓性部材の摩擦係合面の断面形状が設定されて
いることを特徴とする摩擦伝動式波動変速装置。1. An annular rigid member having an inner peripheral surface serving as a frictional engagement surface, an annular flexible member disposed inside the annular rigid member and having an outer peripheral surface serving as a frictional engagement surface, A wave generator that is arranged inside the flexible member, flexes the flexible member in the radial direction to partially engage the rigid member, and moves the engagement position in the circumferential direction. And a cross-sectional shape of a frictional engagement surface of the rigid member and the flexible member so that an engagement state of the rigid member and the flexible member becomes a point contact state when viewed in an apparatus axial direction. The friction transmission type wave transmission is characterized in that:
可撓性部材の少なくとも一方の摩擦係合面の装置軸線方
向の断面形状が凸曲線により規定されていることを特徴
とする摩擦伝動式波動変速装置。2. A friction transmission type wave according to claim 1, wherein the frictional engagement surface of at least one of the rigid member and the flexible member has a sectional shape defined by a convex curve in a device axial direction. Transmission.
可撓性部材の一方の摩擦係合面の装置軸線方向の断面形
状が凸曲線により規定され、他方の摩擦係合面の装置軸
線方向の断面形状が凹曲線により規定されていることを
特徴とする摩擦伝動式波動変速装置。3. The device according to claim 1, wherein a sectional shape of one of the frictional engagement surfaces of the rigid member and the flexible member in the device axial direction is defined by a convex curve, and the other of the frictional engagement surfaces in the device axial direction. A friction transmission type wave transmission, wherein a sectional shape is defined by a concave curve.
性部材および可撓性部材の摩擦係合面の間には、当該剛
性部材および可撓性部材の摩擦係合面に比べて摩擦係数
の高い弾性部材を介在させてあることを特徴とする摩擦
伝動式波動変速装置。4. The rigid member according to claim 1, 2 or 3, wherein the rigid member and the flexible member are provided between the frictional engagement surfaces of the rigid member and the flexible member.
A friction transmission type wave transmission, wherein an elastic member having a higher friction coefficient than a friction engagement surface of a flexible member and a flexible member is interposed.
記剛性部材および可撓性部材の摩擦係合面のうちの一方
がＮ極に帯磁され、他方がＳ極に帯磁されていることを
特徴とする摩擦伝動式波動変速装置。5. The method according to claim 1, wherein one of the frictional engagement surfaces of the rigid member and the flexible member is magnetized to an N pole and the other is magnetized to an S pole. A friction transmission type wave transmission having the following features.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992059361U JP2575597Y2 (en) | 1992-07-31 | 1992-07-31 | Friction transmission type wave transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992059361U JP2575597Y2 (en) | 1992-07-31 | 1992-07-31 | Friction transmission type wave transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0614593U JPH0614593U (en) | 1994-02-25 |
| JP2575597Y2 true JP2575597Y2 (en) | 1998-07-02 |
Family
ID=13111058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992059361U Expired - Lifetime JP2575597Y2 (en) | 1992-07-31 | 1992-07-31 | Friction transmission type wave transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2575597Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012165395A1 (en) * | 2011-06-03 | 2012-12-06 | Ntn株式会社 | Friction drive-type wave transmission |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303592A (en) * | 2006-05-12 | 2007-11-22 | Honda Motor Co Ltd | Harmonic drive |
| DE102007012767A1 (en) * | 2007-03-17 | 2008-09-18 | Zf Lenksysteme Gmbh | The wave gear |
| JP2010014208A (en) * | 2008-07-03 | 2010-01-21 | Kikuchi Haguruma Kk | Reduction gear |
| JP2012159090A (en) * | 2009-06-04 | 2012-08-23 | National Univ Corp Shizuoka Univ | Drive device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5998151U (en) * | 1982-12-23 | 1984-07-03 | 株式会社小松製作所 | power transmission device |
| JPS63285357A (en) * | 1987-05-15 | 1988-11-22 | Agency Of Ind Science & Technol | Wave motion ring type reduction gear |
-
1992
- 1992-07-31 JP JP1992059361U patent/JP2575597Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012165395A1 (en) * | 2011-06-03 | 2012-12-06 | Ntn株式会社 | Friction drive-type wave transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0614593U (en) | 1994-02-25 |
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