JPS62251558A - Planetary roller speed reducer - Google Patents
Planetary roller speed reducerInfo
- Publication number
- JPS62251558A JPS62251558A JP9423386A JP9423386A JPS62251558A JP S62251558 A JPS62251558 A JP S62251558A JP 9423386 A JP9423386 A JP 9423386A JP 9423386 A JP9423386 A JP 9423386A JP S62251558 A JPS62251558 A JP S62251558A
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- planetary roller
- planetary
- reducer
- slight
- 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.)
- Pending
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Landscapes
- Friction Gearing (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明は、ころがシ遊星機構を用いた減速機、殊にその
外輪が出力軸、または固定されるケーシングと一体とな
った減速機に関するものである。Detailed Description of the Invention (Technical Field) The present invention relates to a speed reducer using a roller planetary mechanism, and particularly to a speed reducer whose outer ring is integrated with an output shaft or a casing to which it is fixed. .
（背景技術）
遊星ローラ減速機においては、外輪と遊星ローラ、遊星
ローンと入力軸の間に、焼ばめ等の方法により圧接力を
発生させているが、外輪を出力軸あるいはケーシングと
一体型とした場合、その形状による影響で遊星ローラと
外輪の接触部において、軸方向に著しい圧力分布、応力
分布の不均一が生じ、接触部の表面において強い応力が
発生し、摩耗の発生が大となり、減速機の！！ＩＩをか
（丘襦十スジ層へか６梢；もっす−次に本発明の背景技
術について第６図自主第１２図にもとづいてくわしく説
明する。(Background technology) In a planetary roller reducer, pressure is generated between the outer ring and the planetary roller, and between the planetary roller and the input shaft by a method such as shrink fitting. In this case, due to the influence of the shape, significant pressure distribution and uneven stress distribution occur in the axial direction at the contact area between the planetary roller and the outer ring, strong stress is generated on the surface of the contact area, and wear increases. , of the reducer! ! Next, the background art of the present invention will be explained in detail based on FIG. 6 and FIG. 12.
第６図乃至第８図は従来の、この種の外輪と出力軸また
はケーシングが一体となったころがり遊星機構を用いた
減速機の例を示す。6 to 8 show examples of conventional reduction gears using a rolling planetary mechanism in which an outer ring and an output shaft or a casing are integrated.
図において、１は入力軸、２は円筒形の遊星ローラ、２
′は同軸上に大径部と小径部を有する段つき円筒形状の
遊星ローラである。In the figure, 1 is an input shaft, 2 is a cylindrical planetary roller, 2
' is a stepped cylindrical planetary roller having a large diameter part and a small diameter part on the same axis.
３はリテーナで、遊星ローラ２を入力軸１のまわりに角
度等間隔に位置決めし、保持している。A retainer 3 positions and holds the planetary rollers 2 around the input shaft 1 at equal angular intervals.
４はケーシングと一体化した外輪（以下、外輪αと記す
。）５は出力軸と一体化した外輪（以下、外輪βと記す
。）である。4 is an outer ring integrated with the casing (hereinafter referred to as outer ring α); 5 is an outer ring integrated with the output shaft (hereinafter referred to as outer ring β).
第９図は第６図乃至第８図におけるＡ−Ａ線に沿う断面
図で、リテーナ３は省略されている。FIG. 9 is a sectional view taken along the line A-A in FIGS. 6 to 8, and the retainer 3 is omitted.
ころがり遊星機構による減速機においては、外輪４と遊
星ローラ２、遊星ローラ２と入力軸１０間に圧接力を発
生させるため、外輪の焼ばめ等の手段をとっているが、
第６図乃至第８図で示した出力軸と一体化されたＳの外
輪βを圧接力を持って、遊星ローラ２または２′の外側
からはめると、５の外輪βの縮小しようとする力と遊星
ローラ２または２′のからの反発力により、５の外輪β
は第１θ図に示すように変形する。破線で示したのが、
はめる前、実線で示したのが、はめたあとの変形後の形
状である。４の外輪αは、同様にして第１１図に示すよ
うに変形する。In reduction gears using a rolling planetary mechanism, measures such as shrink fitting of the outer rings are used to generate pressure contact between the outer ring 4 and the planetary rollers 2, and between the planetary rollers 2 and the input shaft 10.
When the outer ring β of S, which is integrated with the output shaft shown in FIGS. 6 to 8, is fitted from the outside of the planetary roller 2 or 2' with pressure, the force that tries to reduce the outer ring β of 5 is applied. Due to the repulsive force from and planetary roller 2 or 2', the outer ring β of 5
is deformed as shown in Fig. 1θ. The broken line shows
The solid line before fitting is the deformed shape after fitting. The outer ring α of No. 4 is similarly deformed as shown in FIG.
第１θ図、第１１図に示すように、遊星ローラ２又は２
′との接触部であるＢ部、０部が変形後ではわずかなチ
ーツク形状となる。As shown in Fig. 1θ and Fig. 11, the planetary roller 2 or 2
After deformation, parts B and 0, which are the contact parts with ', have a slight cheek shape.
従って、第８図の構造の減速機を例にとると、第１２図
に示すように外輪４と遊星ローラ２の接触部における圧
力分布は、軸方向に不均一となり、応力分布も不均一か
つ、接触面（転勤面）が摩耗しゃすくなシ、減速機の寿
命に悪影響を与えることになる。Therefore, taking the reducer with the structure shown in FIG. 8 as an example, the pressure distribution at the contact area between the outer ring 4 and the planetary roller 2 is uneven in the axial direction as shown in FIG. 12, and the stress distribution is also uneven. , the contact surface (transfer surface) will not wear easily, which will have a negative impact on the life of the reducer.
（発明の目的）
本発明は、上記の欠点を改善するために提案されたもの
であって、その目的とするところは、外輪と遊星ローラ
の接触部における応力分布、圧力分布を均一化し、接触
部表面に強い応力が発生しない、摩耗しにくい長寿命の
、外輪と出力軸またはケーシングが一体化された遊星ロ
ーラ減速機を提供するにある。(Object of the Invention) The present invention has been proposed to improve the above-mentioned drawbacks, and its purpose is to equalize the stress distribution and pressure distribution at the contact portion between the outer ring and the planetary roller, and to To provide a planetary roller reducer in which an outer ring and an output shaft or a casing are integrated, which does not generate strong stress on the surface, is hard to wear, has a long life, and has an integrated outer ring and an output shaft or a casing.
（発明の開示）
本発明は、出力軸またはケーシングと一体となった外輪
の内周面を軸方向に、微かなテーパ形状とすることを特
徴とするもので、これにより、外輪の一体型形状の影響
による外輪と遊星ローラの接触部における圧力分布と応
力分布の不均一を均一化し、また接触部表面における応
力の集中を防ぐことにニジ、接触部の摩耗を低減し、減
速機を長寿命化することにある。(Disclosure of the Invention) The present invention is characterized in that the inner circumferential surface of the outer ring that is integrated with the output shaft or the casing has a slight taper shape in the axial direction. It evens out the uneven pressure distribution and stress distribution at the contact area between the outer ring and the planetary roller due to the influence of heat, and also prevents stress concentration on the contact area surface, reducing wear on the contact area and extending the life of the reducer. It is about becoming.
（実施例）
次に、本発明の実施例を第１図乃至第５図にもとづいて
説明する。(Example) Next, an example of the present invention will be described based on FIGS. 1 to 5.
第６図乃至第８図において示した４の外輪α、５の外輪
βの、夫々の遊星ローラに対する接触面（転勤面）を、
軸方向に微かなチー・母形状としたのが、第１図に示す
イの外輪ｄ、第２図の５′の外輪ノである。ｄ部、ｄ部
の遊星ローラに対する接触面（転動面）が軸方向に微か
なチー／４’となってお夛、第１２図の圧力分布におい
て、大きな圧力値を示した部分より、小さな圧力値を示
した部分の径をかすかに小さくしである。The contact surfaces (transfer surfaces) of the outer rings 4 and 5 shown in FIGS. 6 to 8 with respect to the planetary rollers are as follows:
The outer ring d shown in FIG. 1 and the outer ring 5' in FIG. 2 have a slight chi-matrix shape in the axial direction. The contact surfaces (rolling surfaces) for the planetary rollers in parts d and d have a slight chi/4' in the axial direction, and in the pressure distribution in Fig. 12, the pressure is smaller than the part that showed a large pressure value. The diameter of the part that shows the pressure value is made slightly smaller.
第１図及び第２図で示した４′の外輪ｄ、５′の外輪ノ
を、遊星ローラ２またはｉに対し圧接力を持ってはめる
と、第３図及び第４図に示すように変形する。破線で示
したのがはめる前の形状、実線で示したのがはめた後の
形状である。When the outer rings 4' and 5' shown in Figs. 1 and 2 are fitted with pressure against the planetary roller 2 or i, they deform as shown in Figs. 3 and 4. do. The broken line shows the shape before fitting, and the solid line shows the shape after fitting.
外輪の縮小しようとする力と、遊星ローラからの反発力
による変形と、夫々の微かなチーツク形状によシ、変形
後の両外輪の遊星ローラに対する接触面（転勤面）は、
遊星ローラの面に対し平行となシ、第８図及び第１２図
で示した減速機を例にとると、第５図に示すように、接
触面における軸方向の圧力分布、応力分布ともに均一化
され、また接触面（転勤面）における応力集中も見られ
なくなる。Due to the shrinking force of the outer ring, the deformation due to the repulsive force from the planetary roller, and the slight cheek shape of each, the contact surfaces (transfer surfaces) of both outer rings with the planetary roller after deformation are as follows:
Taking as an example the reducer shown in Figures 8 and 12, which is parallel to the surface of the planetary roller, both the axial pressure distribution and stress distribution on the contact surface are uniform, as shown in Figure 5. In addition, stress concentration at the contact surface (transfer surface) is no longer observed.
（発明の効果）
本発明は、叙上のように、外輪と出力軸またはケーシン
グが一体化された遊星ローラ減速機テアって、外輪と遊
星ローラの接触部において、軸方向に僅かなテーパをあ
たえることによシ、軸方向の圧力分布、応力分布共に均
一となり、接触面に応力集中もなく、従って、摩耗しに
くい長寿命の遊星ローラ減速機を得ることができる。(Effects of the Invention) As described above, the present invention provides a planetary roller reducer tear in which an outer ring and an output shaft or a casing are integrated, and a slight taper in the axial direction at the contact portion between the outer ring and the planetary roller. By applying this, the pressure distribution and stress distribution in the axial direction become uniform, and there is no stress concentration on the contact surface, so that it is possible to obtain a planetary roller reducer that is resistant to wear and has a long life.
第１図及び第２図は本発明の実施例、第３図乃至第５図
は作用の説明図、第６図乃至第９図は従来装置、第１θ
図乃至第１２図は作用の説明図を示す。
ｌ・・・入力軸、２，２・・・遊星ローラ、３・・・リ
テーナ、４．イ・・・外輪α、５，５・・・外輪β。
出願人松下電工株式会社、１１．
１ｉｓ１ｒ；： ＠２ｒ＝
ＩＩ３図 １１４図１１５図
ｓ６ｖ！Ｊ 第７ＧＩ
ＳＣ
第９図
第１０図
１１１１ 図
第１２１１（１
手続主１１ｊ正書（自発）
昭和６１年 ８月２７日
昭和６１年 特 許 願 第９４２３３号２、発明の名
称
遊ｗａＯ−ラ減速機
３、補正をする者
事件との関係 特許出願人
名 称 （５８：１１松下電工株式会社４、代 理
人〒１６０
住 所 東京都新宿区西新宿７丁目５番１０号第
２ミゾタビルディング７階
電話（０３）３（ｉ！＋−１９８２１ｉ 、、 −
氏 名 弁理士（６１０８１高 山
敏 ・夫、。
′＝
５、補正の対象
（１）明ｌｌ１ｍの［発明の３Ｔｌｌな説明Ｊ Ｊ５よ
び「図面の簡単な説明」の欄
（２）図面°の第１図乃至第４図、第６図乃至第１２図
６、補正の内容
別紙のとおり補正する。
（１）明１８繊第３頁第１８行目の［外輪・・・・入力
軸」を次のように訂正する。
［外輪と遊星ローラ、遊星ローラと入力軸」（２）同ｌ
同貞第１９行目の「１の間」を「の間」と訂正する。
（３）同閃同頁第２０行目の「第６図乃至第８図」を［
第６図および第８図」と訂正する。
（４） ｌ＋ｉｌ劇第４員第１３行目の［外輪４と遊星
ローラ２」を１外輪と遊星ローラ」と訂正する。
（５）同書第６員第１３行目の「夫々の」を「元々の」
と訂正する。
（６）同塵第７頁第１６行目の［４，４°・・・外輪α
、５゜５°・・・外輪β」を［４・・・外輪α、４゛・
・・外輪α゛、５・・・ 外輪β、５°・・・外輪β′
」と訂正する。
ｌｉｔ 図 第２−１３図
ＳＺｇ
第６図 第７図ＩＪ８図
第９図1 and 2 are examples of the present invention, FIGS. 3 to 5 are explanatory diagrams of the operation, and FIGS. 6 to 9 are conventional devices, 1θ
Figures 1 to 12 show explanatory diagrams of the operation. l...Input shaft, 2, 2... Planetary roller, 3... Retainer, 4. A... Outer ring α, 5, 5... Outer ring β. Applicant Matsushita Electric Works Co., Ltd., 11. 1is1r;: @2r=
II3 figure 114 figure 115 figure s6v! J 7GI SC Figure 9 Figure 10 1111 Figure 1211 (1 Main procedure 11j original (spontaneous) August 27, 1985 Patent application No. 94233 2, name of the invention waO-ra reduction 3. Relationship with the case of the person making the amendment Name of patent applicant (58:11 Matsushita Electric Works Co., Ltd. 4, Agent)
Person: 160 Address: 7th Floor, 2nd Mizota Building, 7-5-10 Nishi-Shinjuku, Shinjuku-ku, Tokyo Telephone: (03) 3 (i!+-19821i,, -
Name Patent Attorney (61081 Takayama
Satoshi/husband. ' = 5, Subject of correction (1) [3Tll explanation of the invention J J5 and "Brief explanation of the drawings" column (2) Figures 1 to 4 and Figures 6 to 6 of the drawings 12. Corrections will be made as shown in Figure 6, the details of the correction attached. (1) [Outer ring...input shaft] on page 3, line 18 of Mei 18 Sen is corrected as follows. [Outer ring and planetary roller, planetary roller and input shaft” (2) same l
Correct ``1 no Ma'' in line 19 of Dosei to ``Ma''. (3) "Figures 6 to 8" on the 20th line of the same page in the same flash [
6 and 8”. (4) Correct "Outer ring 4 and planetary roller 2" in line 13 of the 4th member of the l+il drama to 1 outer ring and planetary roller. (5) “Each” in the 13th line of the 6th member of the same book is “original”
I am corrected. (6) Same dust, page 7, line 16 [4,4°...Outer ring α
, 5゜5°...outer ring β' [4...outer ring α, 4゛・
... Outer ring α゛, 5... Outer ring β, 5°... Outer ring β'
” he corrected. lit Figure 2-13
SZg Figure 6 Figure 7 Figure IJ8 Figure 9
Claims (2)
置された円筒形の遊星ローラと、遊星ローラを位置決め
すると共に保持するリテーナと、遊星ローラに対し圧接
力をもつて、その内周を内接する外輪から構成され、こ
の外輪が出力軸または、固定されるケーシングと一体と
なつている減速機において、前記外輪の、遊星ローラと
接する内周面が、軸方向に微かなテーパ形状となつてい
ることを特徴とする遊星ローラ減速機。(1) An input shaft, a plurality of cylindrical planetary rollers arranged at equal angular intervals around the input shaft, a retainer that positions and holds the planetary rollers, and a retainer that applies pressure to the planetary rollers. In a reducer consisting of an outer ring inscribed on the inner periphery, and this outer ring is integrated with an output shaft or a casing to which it is fixed, the inner circumferential surface of the outer ring in contact with the planetary roller has a slight taper in the axial direction. A planetary roller reducer characterized by a shape.
つきの円筒形状であり、この小径部に内接する外輪と大
径部に内接する外輪の２枚の外輪のうち、一方が出力軸
と一体となつており、他の一方の外輪が、固定されるケ
ーシングと一体となつておる減速機において、前記２枚
の外輪のうち少くとも一方の内周面が、軸方向に微かな
テーパ形状となつていることを特徴とする、３Ｋ型遊星
歯車減速機構を有する特許請求の範囲第１項記載の遊星
ローラ減速機。(2) The planetary roller has a stepped cylindrical shape with a small diameter part and a large diameter part on the same axis, and one of the two outer rings, the outer ring inscribed in the small diameter part and the outer ring inscribed in the large diameter part, outputs output. In a reducer in which the other outer ring is integrated with the shaft and the other outer ring is integrated with the casing to which it is fixed, the inner peripheral surface of at least one of the two outer rings has a slight deviation in the axial direction. The planetary roller speed reducer according to claim 1, having a 3K type planetary gear speed reduction mechanism, which is characterized by having a tapered shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9423386A JPS62251558A (en) | 1986-04-22 | 1986-04-22 | Planetary roller speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9423386A JPS62251558A (en) | 1986-04-22 | 1986-04-22 | Planetary roller speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62251558A true JPS62251558A (en) | 1987-11-02 |
Family
ID=14104588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9423386A Pending JPS62251558A (en) | 1986-04-22 | 1986-04-22 | Planetary roller speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62251558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5046996A (en) * | 1988-07-18 | 1991-09-10 | Otto Bock Orthopadische Industrie Besitz-Und Werwaltungs-Kg | Planetary friction drive |
-
1986
- 1986-04-22 JP JP9423386A patent/JPS62251558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5046996A (en) * | 1988-07-18 | 1991-09-10 | Otto Bock Orthopadische Industrie Besitz-Und Werwaltungs-Kg | Planetary friction drive |
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