JP2003097647A - Rotation transmitting driving structure - Google Patents
Rotation transmitting driving structureInfo
- Publication number
- JP2003097647A JP2003097647A JP2001292897A JP2001292897A JP2003097647A JP 2003097647 A JP2003097647 A JP 2003097647A JP 2001292897 A JP2001292897 A JP 2001292897A JP 2001292897 A JP2001292897 A JP 2001292897A JP 2003097647 A JP2003097647 A JP 2003097647A
- Authority
- JP
- Japan
- Prior art keywords
- driven
- toothed
- drive
- pulleys
- shaft
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、駆動軸に対して
従動軸が捩じれて配置されている回転伝達駆動構造に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotation transmission drive structure in which a driven shaft is twisted with respect to a drive shaft.
【０００２】[0002]
【従来の技術】上記回転伝達駆動構造としては、例え
ば、以下のＡ，Ｂに示すような構造のものがある。
Ａ．駆動軸に対して従動軸が９０°捩じれて配置されて
おり、各軸に取り付けられたすぐ歯の駆動・従動歯付き
プーリ相互間にすぐ歯の歯付きべルトが張設されて成る
構造。2. Description of the Related Art As the rotation transmission drive structure, for example, there are structures as shown in A and B below. A. The driven shaft is twisted by 90 ° with respect to the drive shaft, and the toothed belt with the immediate teeth is stretched between the pulleys with the driven teeth and the driven teeth attached to each shaft.
【０００３】この構造においては、噛み合い干渉が大き
くなるためテンションプーリが不可欠であり、また、軸
間距離が短い場合には使用できないという問題もあっ
た。つまり、狭いスペースに配置させることができなか
った。In this structure, a tension pulley is indispensable because the meshing interference becomes large, and there is a problem that it cannot be used when the axial distance is short. In other words, it could not be placed in a narrow space.
【０００４】また、上述した如く噛み合い干渉が大きく
なるため、ベルトの寿命が短いという問題があった。
Ｂ．ウォームギアーを利用して成る構造。Further, there is a problem that the life of the belt is short because the meshing interference increases as described above. B. A structure that uses worm gear.
【０００５】この構造では、定期的に潤滑などを行う必
要があり、油をきらう用途では使用しずらいという問題
がある。With this structure, it is necessary to perform lubrication regularly, and there is a problem that it is difficult to use in applications where oil is tolerated.
【０００６】したがって、この種の回転伝達駆動構造を
採用する技術者の間では、狭いスペースでも設置で
き、ベルト寿命が長く、給油を必要としない回転伝
達駆動構造が開発されることを待ち望んでいる。Therefore, among engineers who employ this kind of rotation transmission drive structure, long-awaited development of a rotation transmission drive structure that can be installed in a narrow space, has a long belt life, and does not require refueling. .
【０００７】[0007]
【発明が解決しようとする課題】そこで、この発明で
は、狭いスペースでも設置でき、ベルト寿命が長
く、給油を必要としない回転伝達駆動構造を提供する
ことを課題とする。SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a rotation transmission drive structure which can be installed in a narrow space, has a long belt life, and does not require refueling.
【０００８】[0008]
【課題を解決するための手段】（請求項１記載の発明）
この発明の回転伝達駆動構造は、駆動軸に対して従動軸
が９０°±６０°捩じれて配置されており、各軸に取り
付けられた駆動・従動歯付きプーリ相互間に歯付きべル
トが張設されている回転駆動伝達構造であって、前記歯
付きベルトはすぐ歯であると共に、駆動・従動歯付きプ
ーリは共に歯の捩じれ方向が同一のはす歯プーリであ
る。
（請求項２記載の発明）この発明の回転伝達駆動構造
は、駆動軸に対して従動軸が９０°±６０°捩じれて配
置されており、各軸に取り付けられた駆動・従動歯付き
プーリ相互間に歯付きべルトが張設されている回転駆動
伝達構造であって、前記歯付きベルトははす歯であると
共に、駆動・従動歯付きプーリは共にすぐ歯プーリであ
る。Means for Solving the Problems (Invention according to Claim 1)
In the rotation transmission drive structure according to the present invention, the driven shaft is twisted by 90 ° ± 60 ° with respect to the drive shaft, and the toothed belt is stretched between the drive / driven toothed pulleys attached to each shaft. In the rotational drive transmission structure provided, the toothed belt is a straight tooth, and the driving and driven toothed pulleys are both helical pulleys in which the twisting directions of the teeth are the same. (Invention of Claim 2) In the rotation transmission drive structure of the present invention, the driven shaft is disposed so as to be twisted by 90 ° ± 60 ° with respect to the drive shaft, and the drive / driven toothed pulleys are attached to each shaft. In the rotary drive transmission structure in which a toothed belt is stretched between the toothed belt and the driven and driven toothed pulleys, the toothed belts are helical teeth.
【０００９】なお、上記発明の回転伝達駆動構造の作用
・効果については以下の発明の実施の形態の欄で説明す
る。The operation and effect of the rotation transmission drive structure of the above invention will be described in the section of the following embodiments of the invention.
【００１０】[0010]
【発明の実施の形態】以下、この発明を実施形態として
示した図面に従って説明する。
〔実施形態１〕図１はこの発明の実施形態の回転伝達駆
動構造の斜視図を示しており、図２は前記回転伝達駆動
構造の平面図を示している。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings showing the embodiments. [First Embodiment] FIG. 1 is a perspective view of a rotation transmission drive structure according to an embodiment of the present invention, and FIG. 2 is a plan view of the rotation transmission drive structure.
【００１１】この発明の実施形態の回転伝達駆動構造
は、図１や図２に示すように、駆動軸１に対して従動軸
２が９０°捩じれて配置されており、各軸１，２に取り
付けられた駆動・従動歯付きプーリ３，４相互間に歯付
きべルト５が張設されて成る。In the rotation transmission drive structure of the embodiment of the present invention, as shown in FIG. 1 and FIG. 2, the driven shaft 2 is arranged so as to be twisted by 90 ° with respect to the drive shaft 1, and each of the shafts 1 and 2 is provided. A toothed belt 5 is stretched between the attached drive / driven toothed pulleys 3 and 4.
【００１２】歯付ベルト５は、図１に示すように、歯を
すぐ歯としたものである。As shown in FIG. 1, the toothed belt 5 has straight teeth.
【００１３】駆動・従動歯付きプーリ３，４は図１や図
２に示すように、共に同じ方向に捩じれるはす歯であ
り、その捩じれ角θ３，θ４は最も噛み合い干渉が小さ
い以下の式により表される関係に設定してある。
「プーリ捩じれ角度θ３，θ４」
駆動歯付きプーリ３ θ３＝ｓｉｎ-1〔ｒ２／（ＣＤ＋Ｒ１×π／４）〕 式１
従動歯付きプーリ４ θ４＝ｓｉｎ-1〔ｒ１／（ＣＤ＋Ｒ２×π／４）〕 式２
上記式中、
ｒ１：駆動歯付きプーリ３のピッチ円の半径
ｒ２：従動歯付きプーリ４のピッチ円の半径
Ｒ１：駆動歯付きプーリ３のピッチ円の直径
Ｒ２：従動歯付きプーリ３のピッチ円の直径
ＣＤ：駆動軸１と従動軸２の軸心間距離
（以下、余白）この回転伝達駆動構造を採用した場合の
実験結果を表１に示す。なお、この実験に使用したプー
リ（駆動・従動歯付きプーリ３，４）は、θ３、ＣＤ、
ｒ１、ｒ２、Ｒ１、Ｒ２の値を上記した式１、式２に当
てはめたときに成立するように設定したものであり、寿
命時間は複数のデータの平均値を示している。As shown in FIGS. 1 and 2, the drive / driven toothed pulleys 3 and 4 are helical teeth that are twisted in the same direction. The twist angles θ3 and θ4 of the pulleys are as follows. Is set to the relationship represented by. “Pulley twist angle θ3, θ4” Pulley 3 with drive teeth θ3 = sin −1 [r2 / (CD + R1 × π / 4)] Equation 1 Pulley 4 with driven teeth θ4 = sin −1 [r1 / (CD + R2 × π / 4) )] In the above formula, r1: radius of pitch circle of pulley 3 with driving teeth r2: radius of pitch circle of pulley 4 with driven teeth R1: diameter of pitch circle of pulley 3 with driving teeth R2: pulley with driven teeth Diameter CD of pitch circle 3: distance between center axes of drive shaft 1 and driven shaft 2 (hereinafter referred to as a blank space) Table 1 shows experimental results when this rotation transmission drive structure is adopted. The pulleys (pulleys 3 and 4 with driving and driven teeth) used in this experiment were θ3, CD,
The values of r1, r2, R1, and R2 are set so as to hold when they are applied to the above-described formula 1 and formula 2, and the life time indicates an average value of a plurality of data.
【００１４】[0014]
【表１】 [Table 1]
【００１５】この実施形態の回転伝達駆動構造は以下の
如く優れた機能を奏する。The rotation transmission drive structure of this embodiment has the following excellent functions.
【００１６】はす歯の駆動・従動歯付きプーリ３，４と
すぐ歯の歯付きべルト５との噛み合いであるから、噛み
合い干渉は小さくなり、表１に示すようにベルト寿命が
大幅に長くなる。Since the engagement of the pulleys 3 and 4 with drive / driven teeth of the helical teeth and the toothed belt 5 with the immediate teeth, the interference of the engagement is small, and as shown in Table 1, the belt life is significantly long. Become.
【００１７】また、表１の条件１、３を比較した場合、
テンションプーリを使用しなくてもよいことが明らかで
あり、この実施形態の回転伝達駆動構造は、狭いスペー
スでも設置できる。When conditions 1 and 3 in Table 1 are compared,
Obviously, it is not necessary to use a tension pulley, and the rotation transmission drive structure of this embodiment can be installed even in a narrow space.
【００１８】さらに、駆動・従動歯付きプーリ３，４の
捩じれ角に、すぐ歯の歯付きベルトが噛み合うから駆動
軸１と従動軸２の軸間距離が短い場合でも、使用でき
る。Further, since the toothed belt having the immediate teeth meshes with the twist angle of the drive / driven toothed pulleys 3 and 4, it can be used even when the axial distance between the drive shaft 1 and the driven shaft 2 is short.
【００１９】そして、この実施形態の回転伝達駆動構造
であれば、給油の必要がないことが明らかである。
〔他の実施形態〕
．上記実施形態１の駆動・従動歯付きプーリ３，４の
はす歯の傾斜方向を反対とした図３に示す歯付きプーリ
３’，４’を使用した場合、駆動軸１の回転方向が実施
形態１と同じでも従動軸２の回転方向は逆になる。
．上記実施形態では、駆動軸１に対して従動軸２が９
０°捩じれて配置されており、各軸に取り付けられた駆
動・従動歯付きプーリ３，４相互間に歯付きべルト５が
張設されているものとしたが、この発明の回転駆動伝達
装置では駆動軸１に対して従動軸２が９０°±６０°
（好ましくは９０°±４５°）の範囲で使用できる。こ
の場合において、図１において駆動軸１に対する従動軸
２の捩じれが９０°を超える（歯付ベルト５の捩じれが
９０°を超える）ときには歯付プーリ３，４を図３の歯
付プーリ３’，４’に変え、図３において駆動軸１に対
する従動軸２の捩じれが９０°を超える（歯付ベルト５
の捩じれが９０°を超える）ときには歯付プーリ３’，
４’を図１の歯付プーリ３，４に変えることにより、噛
み合い干渉が小さくなる。
．上記実施形態にかえて、歯付きベルトをはす歯と
し、両歯付きプーリを共にすぐ歯プーリとした場合にお
いても、同様の作用・効果を奏する。It is apparent that the rotation transmission drive structure of this embodiment does not require refueling. [Other Embodiments]. When the toothed pulleys 3'and 4'shown in FIG. 3 in which the inclination directions of the helical teeth of the drive / driven toothed pulleys 3 and 4 of the first embodiment are opposite, the rotation direction of the drive shaft 1 is changed. Even if it is the same as the form 1, the rotation direction of the driven shaft 2 is opposite. ． In the above embodiment, the driven shaft 2 has 9
The toothed belt 5 is stretched between the drive / driven toothed pulleys 3 and 4 mounted on each shaft and twisted by 0 °. Then the driven shaft 2 is 90 ° ± 60 ° with respect to the drive shaft 1.
It can be used in the range of (preferably 90 ° ± 45 °). In this case, when the twist of the driven shaft 2 with respect to the drive shaft 1 exceeds 90 ° in FIG. 1 (the twist of the toothed belt 5 exceeds 90 °), the toothed pulleys 3 and 4 are replaced with the toothed pulley 3 ′ of FIG. , 4 ′, and in FIG. 3, the twist of the driven shaft 2 with respect to the drive shaft 1 exceeds 90 ° (the toothed belt 5
If the twist of the tooth exceeds 90 °), the toothed pulley 3 ',
By changing 4 ′ to the toothed pulleys 3 and 4 in FIG. 1, meshing interference is reduced. ． In the case where the toothed belt has helical teeth and both toothed pulleys have both straight tooth pulleys instead of the above embodiment, the same action and effect are obtained.
【００２０】[0020]
【発明の効果】この発明は上記のような構成であるから
次の効果を有する。The present invention having the above-mentioned structure has the following effects.
【００２１】発明の実施の形態の欄の内容から明らかな
ように、狭いスペースでも設置でき、ベルト寿命が
長く、給油を必要としない回転伝達駆動構造を提供で
きた。As is clear from the contents of the section of the embodiment of the invention, it was possible to provide a rotation transmission drive structure which can be installed even in a narrow space, has a long belt life, and does not require refueling.
【図１】この発明の実施形態１の回転伝達駆動構造の斜
視図。FIG. 1 is a perspective view of a rotation transmission drive structure according to a first embodiment of the present invention.
【図２】前記回転伝達駆動構造における歯付きプーリの
はす歯の傾斜角度を式で表すための図。FIG. 2 is a diagram for expressing an inclination angle of a helical tooth of a toothed pulley in the rotation transmission drive structure by an expression.
【図３】この発明の他の実施形態の回転伝達駆動構造の
斜視図。FIG. 3 is a perspective view of a rotation transmission drive structure according to another embodiment of the present invention.
１ 駆動軸 ２ 従動軸 ３ 駆動歯付きプーリ ３’ 駆動歯付きプーリ ４ 従動歯付きプーリ ４’ 従動歯付きプーリ ５ 歯付きベルト 1 drive shaft 2 Driven shaft 3 Drive toothed pulley 3'drive toothed pulley 4 Pulley with driven teeth 4'Driven pulley 5 toothed belt
Claims (2)
捩じれて配置されており、各軸に取り付けられた駆動・
従動歯付きプーリ相互間に歯付きべルトが張設されてい
る回転駆動伝達構造であって、前記歯付きベルトはすぐ
歯であると共に、駆動・従動歯付きプーリは共に歯の捩
じれ方向が同一のはす歯プーリであることを特徴とする
回転駆動伝達構造。1. The driven shaft is 90 ° ± 60 ° with respect to the drive shaft.
It is twisted and arranged, and the drive attached to each axis
A rotary drive transmission structure in which toothed belts are stretched between driven toothed pulleys, wherein the toothed belt is a straight tooth, and the driving and driven toothed pulleys have the same tooth twist direction. A rotary drive transmission structure, which is a helical toothed pulley.
捩じれて配置されており、各軸に取り付けられた駆動・
従動歯付きプーリ相互間に歯付きべルトが張設されてい
る回転駆動伝達構造であって、前記歯付きベルトははす
歯であると共に、駆動・従動歯付きプーリは共にすぐ歯
プーリであることを特徴とする回転駆動伝達構造。2. The driven shaft is 90 ° ± 60 ° with respect to the drive shaft.
It is twisted and arranged, and the drive attached to each axis
A rotary drive transmission structure in which toothed belts are stretched between driven toothed pulleys, wherein the toothed belt is a helical tooth and both the drive and driven toothed pulleys are straight toothed pulleys. A rotary drive transmission structure characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001292897A JP3505714B2 (en) | 2001-09-26 | 2001-09-26 | Rotation transmission drive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001292897A JP3505714B2 (en) | 2001-09-26 | 2001-09-26 | Rotation transmission drive structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003097647A true JP2003097647A (en) | 2003-04-03 |
| JP3505714B2 JP3505714B2 (en) | 2004-03-15 |
Family
ID=19114779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001292897A Expired - Lifetime JP3505714B2 (en) | 2001-09-26 | 2001-09-26 | Rotation transmission drive structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3505714B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020148266A (en) * | 2019-03-14 | 2020-09-17 | 日本精工株式会社 | Power transmission device and electric power steering device |
| CN112743523A (en) * | 2021-01-18 | 2021-05-04 | 配天机器人技术有限公司 | 90-degree reversing transmission structure |
-
2001
- 2001-09-26 JP JP2001292897A patent/JP3505714B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020148266A (en) * | 2019-03-14 | 2020-09-17 | 日本精工株式会社 | Power transmission device and electric power steering device |
| CN112743523A (en) * | 2021-01-18 | 2021-05-04 | 配天机器人技术有限公司 | 90-degree reversing transmission structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3505714B2 (en) | 2004-03-15 |
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