JP2528922Y2 - Needle roller bearing for gear inner - Google Patents
Needle roller bearing for gear innerInfo
- Publication number
- JP2528922Y2 JP2528922Y2 JP1991051235U JP5123591U JP2528922Y2 JP 2528922 Y2 JP2528922 Y2 JP 2528922Y2 JP 1991051235 U JP1991051235 U JP 1991051235U JP 5123591 U JP5123591 U JP 5123591U JP 2528922 Y2 JP2528922 Y2 JP 2528922Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- roller bearing
- needle roller
- oil
- annular portions
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
- F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
- F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window cages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
- F16C19/463—Needle bearings with one row or needles consisting of needle rollers held in a cage, i.e. subunit without race rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、トランスミッションな
どの内部のギヤを回転支持するギヤインナー用針状ころ
軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a needle roller bearing for a gear inner for rotatably supporting an internal gear of a transmission or the like.
【０００２】[0002]
【従来の技術】例えば、トランスミッション内部におい
て図６に示すような構造が見られる。図中、３０は回転
軸、３１は回転軸３０に一体形成される大径部、３２は
回転軸３０に回動不可能に固定される固定ギヤ、３３は
大径部３１と固定ギヤ３２との間に形成される環状溝、
３４は環状溝３３に回動可能に配置される可動ギヤ、３
５は可動ギヤ３４と回転軸３０外周面との間に設けられ
るギヤインナー用針状ころ軸受である。2. Description of the Related Art For example, a structure as shown in FIG. 6 is seen inside a transmission. In the drawing, reference numeral 30 denotes a rotating shaft, 31 denotes a large-diameter portion integrally formed with the rotating shaft 30, 32 denotes a fixed gear fixed to the rotating shaft 30 so as not to be rotatable, and 33 denotes a large-diameter portion 31 and the fixed gear 32. An annular groove formed between,
Reference numeral 34 denotes a movable gear rotatably disposed in the annular groove 33;
Reference numeral 5 denotes a gear inner needle roller bearing provided between the movable gear 34 and the outer peripheral surface of the rotary shaft 30.
【０００３】ギヤインナー用針状ころ軸受３５は、複数
個の針状ころ３６と、針状ころ３６を円周数箇所に保持
しかつ前記可動ギヤ３４の内周面で摺動案内される外輪
案内タイプの円筒形合成樹脂製保持器３７とからなり、
内外輪無しのいわゆるケージアンドローラと称されるも
のである。A needle roller bearing 35 for a gear inner comprises a plurality of needle rollers 36 and an outer ring which holds the needle rollers 36 at several locations around the circumference and is slidably guided on the inner peripheral surface of the movable gear 34. It consists of a guide type cylindrical synthetic resin cage 37,
It is a so-called cage and roller without inner and outer rings.
【０００４】[0004]
【考案が解決しようとする課題】ところで、上述の構造
においては、この装置の周辺にギヤ油が存在している
が、Ａ側とＢ側のギヤ油の圧力が同一ではないため、両
側からころ軸受収容空間に均等に油が入らず、ギヤ油圧
力の高い側から低い側へ向かってギヤ油が流れることに
なる。したがって、低圧側では潤滑不良になるおそれが
ある。By the way, in the above-mentioned structure, gear oil exists around this device, but since the pressures of the gear oils on the A side and the B side are not the same, the rollers are rolled from both sides. Oil does not evenly enter the bearing accommodating space, and gear oil flows from the higher gear oil pressure to the lower gear oil pressure. Therefore, lubrication failure may occur on the low pressure side.
【０００５】ＦＦ車に搭載するトランスミッションでは
回転軸に油供給孔を設けることができ、そこから低圧側
の潤滑不良を解消するために油孔を設けることができる
が、ＦＲ車に搭載するトランスミッションでは回転軸に
油供給孔を設けることができず、従来、回転軸の外周部
分において油を通過させる形態としている。[0005] In a transmission mounted on a front-wheel drive vehicle, an oil supply hole can be provided in the rotating shaft, and an oil hole can be provided therethrough to eliminate poor lubrication on the low pressure side. An oil supply hole cannot be provided in the rotating shaft, and conventionally, oil is passed through an outer peripheral portion of the rotating shaft.
【０００６】図６における油の通過経路は、Ａ側→回転
軸３０の大径部３１と可動ギヤ３４との間の径方向に沿
う隙間→針状ころ軸受３５の配置空間→可動ギヤ３４と
固定ギヤ３２との間の径方向に沿う隙間→Ｂ側といった
ものとなる。このような油通過経路のうち、針状ころ軸
受３５の配置空間においては、油が主として回転遠心力
で可動ギヤ３４の内周面を伝うことになるが、針状ころ
軸受３５の保持器３７の外周面を可動ギヤ３４の内周面
に摺動案内させている関係から、保持器３７によって油
の通過を遮断することがあり、Ｂ側への油供給が途切れ
るなど、Ｂ側空間での潤滑が不足しがちとなる。The passage of oil in FIG. 6 is as follows: A side → gap along the radial direction between the large diameter portion 31 of the rotating shaft 30 and the movable gear 34 → space for disposing the needle roller bearing 35 → movable gear 34 A gap along the radial direction with the fixed gear 32 → the B side. In such an oil passage, in the arrangement space of the needle roller bearing 35, the oil mainly travels on the inner peripheral surface of the movable gear 34 by rotational centrifugal force, but the retainer 37 of the needle roller bearing 35 Because the outer peripheral surface is slidably guided on the inner peripheral surface of the movable gear 34, the passage of oil may be interrupted by the retainer 37, and the oil supply to the B side may be interrupted. Lubrication tends to be insufficient.
【０００７】本考案は、このような事情に鑑みて創案さ
れたもので、可動ギヤの軸方向一側から他側への油供給
の途切れを無くすことを課題とする。The present invention has been made in view of such circumstances, and has as its object to eliminate interruption of oil supply from one side of the movable gear in the axial direction to the other side.
【０００８】[0008]
【課題を解決するための手段】このような課題を達成す
るために、本考案は、回転軸の外周に取り付けられる可
動ギヤを回動自在に支持するギヤインナー用針状ころ軸
受において、次のような構成をとる。According to the present invention, there is provided a needle inner roller bearing for a gear inner which rotatably supports a movable gear attached to an outer periphery of a rotary shaft. The configuration is as follows.
【０００９】本考案のギヤインナー用針状ころ軸受は、
一対の環状部と、両環状部間に設けられて両環状部を軸
方向に一体に結合しかつ円周上に配置されて両環状部と
ともにそれぞれポケットを形成する複数の柱部とを一体
成形により形成された円筒形の合成樹脂製保持器と、該
保持器の各ポケットに保持される複数個の針状ころとか
らなり、前記保持器が前記可動ギヤの内周面で摺動案内
されるとともに、円周数箇所に設けられる各ポケットの
軸方向両側部分の両環状部に、少なくとも各ポケット内
に油を導く油導入路が設けられていることに特徴を有す
る。The needle roller bearing for a gear inner according to the present invention is:
A pair of annular portions and a plurality of pillar portions provided between the annular portions and integrally joined in the axial direction and arranged on the circumference to form pockets together with the annular portions are integrally formed. And a plurality of needle rollers held in each pocket of the holder, and the holder is slidably guided on the inner peripheral surface of the movable gear. In addition, it is characterized in that oil introduction passages for guiding oil into at least each pocket are provided in both annular portions on both axial sides of each pocket provided at several locations around the circumference.
【００１０】[0010]
【作用】回転中において、可動ギヤを挟む軸方向一側か
ら他側へ向けて油が供給されるとき、可動ギヤの内周面
で針状ころ軸受の保持器外周面が摺動案内されていて
も、保持器の両環状部外周面に形成してある油導入路と
可動ギヤの内周面との間に常に隙間ができるので、一方
環状部の油導入路で形成する隙間から油がポケット内へ
途切れなく導入されるようになる。このポケット内に導
入された油はさらに他方環状部の油導入路で形成する隙
間を介してこの針状ころ軸受の側方へ通過される。During rotation, when oil is supplied from one side in the axial direction of the movable gear to the other side, the outer peripheral surface of the needle roller bearing cage is slidably guided on the inner peripheral surface of the movable gear. However, since there is always a gap between the oil introduction passage formed on the outer peripheral surfaces of both the annular portions of the retainer and the inner peripheral surface of the movable gear, oil is formed from the gap formed by the oil introduction passage of the annular portion. It will be introduced into the pocket without interruption. The oil introduced into the pocket is further passed to the side of the needle roller bearing through a gap formed by the oil introduction path of the other annular portion.
【００１１】[0011]
【実施例】以下、本考案の一実施例を図面に基づいて詳
細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.
【００１２】図１ないし図３に本考案の一実施例を示し
ている。図１は従来例の図６に示す構造とほぼ同じ構造
である。図中、１０は回転軸、１１は回転軸１０に一体
形成される大径部、１２は回転軸１０に回動不可能に固
定される固定ギヤ、１３は大径部１１と固定ギヤ１２と
の間に形成される環状溝、１４は環状溝１３に回動可能
に配置される可動ギヤ、１５は可動ギヤ１４と回転軸１
０の外周面との間に設けられるギヤインナー用針状ころ
軸受である。FIGS. 1 to 3 show an embodiment of the present invention. FIG. 1 has substantially the same structure as that of the conventional example shown in FIG. In the drawing, reference numeral 10 denotes a rotating shaft, 11 denotes a large-diameter portion formed integrally with the rotating shaft 10, 12 denotes a fixed gear fixed to the rotating shaft 10 so as not to rotate, and 13 denotes a large-diameter portion 11 and the fixed gear 12. , A movable gear rotatably disposed in the annular groove 13, and a movable gear 14 and the rotating shaft 1.
0 is a needle roller bearing for a gear inner provided between the outer peripheral surface of the roller and the inner roller.
【００１３】ギヤインナー用針状ころ軸受１５は、複数
個の針状ころ１６と、針状ころ１６を円周数箇所に保持
しかつ前記可動ギヤ１４の内周面で摺動案内される外輪
案内タイプの円筒形合成樹脂製保持器１７とからなり、
内外輪無しのいわゆるケージアンドローラと称されるも
のである。合成樹脂材料としては、６６ナイロンや、４
６ナイロンなどが適宜選択されうる。A needle roller bearing 15 for a gear inner comprises a plurality of needle rollers 16 and an outer ring which holds the needle rollers 16 at several locations around the circumference and is slidably guided on the inner peripheral surface of the movable gear 14. It is composed of a guide type cylindrical synthetic resin cage 17,
It is a so-called cage and roller without inner and outer rings. As a synthetic resin material, 66 nylon, 4
6 nylon and the like can be appropriately selected.
【００１４】本実施例において従来例と異なる構成は、
ギヤインナー用針状ころ軸受１５の保持器１７である。
すなわち、保持器１７は、一対の環状部１８、１９と、
両環状部間に設けられて両環状部を軸方向に一体に結合
しかつ円周上に配置されて両環状部とともにそれぞれポ
ケット２１を形成する複数の柱部２０・・とを一体成形
することにより形成されている。各ポケット２１に針状
ころ１６が回動自在に保持されている。両環状部１８、
１９において、各ポケット２１の軸方向両側部分の外周
面に、それぞれ油導入路２２が二つずつ設けられてい
る。油導入路２２の溝幅は、保持器１７の軸方向全長に
わたって一定の寸法に設定されている。In this embodiment, the configuration different from the conventional example is as follows.
This is a retainer 17 of the gear inner needle roller bearing 15.
That is, the retainer 17 includes a pair of annular portions 18 and 19,
A plurality of pillars 20 that are provided between the two annular portions, are integrally connected in the axial direction, are arranged on the circumference, and form the pockets 21 together with the two annular portions, respectively. Is formed. The needle roller 16 is rotatably held in each pocket 21. Both annular portions 18,
In FIG. 19, two oil introduction paths 22 are respectively provided on the outer peripheral surfaces of both axial portions of each pocket 21. The groove width of the oil introduction passage 22 is set to a constant size over the entire length of the retainer 17 in the axial direction.
【００１５】このような針状ころ軸受１５を用いた場合
の動作を説明する。The operation when such a needle roller bearing 15 is used will be described.
【００１６】回転中において、可動ギヤ１４の内周面で
針状ころ軸受１５の保持器１７外周面が摺動案内される
が、保持器１７の外周面に形成してある油導入路２２と
可動ギヤ１４の内周面との間に常に隙間ができるので、
図１のＡ側から、一方（図では右側）の環状部の油導入
路２２を介してポケット１８内へ油が一旦導入され、そ
の後ポケット１８内から他方（図では左側）の環状部の
油導入路２２を介して図１のＢ側へ油が途切れなく供給
されるようになる。During rotation, the outer peripheral surface of the cage 17 of the needle roller bearing 15 is slidably guided by the inner peripheral surface of the movable gear 14, and the oil introduction passage 22 formed on the outer peripheral surface of the cage 17 Since there is always a gap between the movable gear 14 and the inner peripheral surface,
From the side A in FIG. 1, oil is once introduced into the pocket 18 through the oil introduction passage 22 of one (right side in the figure) annular portion, and then from the inside of the pocket 18 to the oil in the other (left side in the figure) annular portion. The oil is continuously supplied to the side B in FIG. 1 through the introduction path 22.
【００１７】なお、本考案は上述した実施例のみに限定
されず、次のようなものも含む。例えば、図４および図
５に示すように、保持器１７の軸方向両端の環状部１
８、１９に油導入路２２の代わりに小径の段差部２２ａ
を設けることにより、ポケット２１に対して油をより一
層流れ込みやすくさせてもよい。The present invention is not limited to the above-described embodiment, but includes the following. For example, as shown in FIG. 4 and FIG.
8 and 19, small-diameter steps 22a instead of oil introduction paths 22
May be provided to make it easier for oil to flow into the pocket 21.
【００１８】また、上記実施例では、回転軸１０の大径
部１１と固定ギヤ１２との間に形成される環状溝１３に
可動ギヤ１４を配置するとして説明しているが、回転軸
１０に刻設される環状溝内に可動ギヤ１４を配置する構
造や、回転軸１０に装着される二つのギヤによって形成
される環状溝内に可動ギヤ１４を配置する構造でも本考
案の適用対象となる。In the above embodiment, the movable gear 14 is disposed in the annular groove 13 formed between the large diameter portion 11 of the rotating shaft 10 and the fixed gear 12, but the rotating shaft 10 The present invention is also applicable to a structure in which the movable gear 14 is arranged in an engraved annular groove or a structure in which the movable gear 14 is arranged in an annular groove formed by two gears mounted on the rotating shaft 10. .
【００１９】[0019]
【考案の効果】以上説明したように、本考案によれば、
可動ギヤの内周面で針状ころ軸受の保持器外周面が摺動
案内されていても、保持器の外周面に形成してある油導
入路と可動ギヤの内周面との間に常に隙間ができるの
で、針状ころ軸受の軸方向一側から、保持器の一方環状
部の油導入路を介してポケット内へ油が一旦導入され、
その後保持器の他方環状部の油導入路を介して針状ころ
軸受の軸方向他側へ油が途切れなく供給されるようにな
る。したがって、針状ころ軸受の潤滑不良および、油の
必要な空間での潤滑不良を防止することができる。[Effects of the Invention] As described above, according to the present invention,
Even if the outer peripheral surface of the needle roller bearing is slidably guided on the inner peripheral surface of the movable gear, there is always a gap between the oil introduction passage formed on the outer peripheral surface of the retainer and the inner peripheral surface of the movable gear. Since there is a gap, oil is once introduced into the pocket from one axial side of the needle roller bearing through the oil introduction passage in the one annular portion of the cage,
Thereafter, the oil is continuously supplied to the other side in the axial direction of the needle roller bearing via the oil introduction passage in the other annular portion of the retainer. Therefore, poor lubrication of the needle roller bearing and poor lubrication in a space requiring oil can be prevented.
【図１】本考案の一実施例のギヤインナー用針状ころ軸
受の使用状態を示す上半部の縦断側面図である。FIG. 1 is a longitudinal sectional side view of an upper half showing a use state of a needle roller bearing for a gear inner according to an embodiment of the present invention.
【図２】図１のギヤインナー用針状ころ軸受の保持器の
要部を示す斜視図である。FIG. 2 is a perspective view showing a main part of a retainer of the gear inner needle roller bearing of FIG. 1;
【図３】図１のＸ−Ｘ線断面図である。FIG. 3 is a sectional view taken along line XX of FIG. 1;
【図４】本考案の他の実施例のギヤインナー用針状ころ
軸受の保持器の要部を示す斜視図である。FIG. 4 is a perspective view showing a main part of a retainer of a needle roller bearing for a gear inner according to another embodiment of the present invention.
【図５】図４の保持器を用いた図１に対応する断面図で
ある。FIG. 5 is a sectional view corresponding to FIG. 1 using the retainer of FIG. 4;
【図６】従来のギヤインナー用針状ころ軸受の使用状態
を示す上半部の縦断側面図である。FIG. 6 is a vertical sectional side view of an upper half portion showing a use state of a conventional needle roller bearing for a gear inner.
１０ 回転軸 １１ 回転
軸１０の大径部 １２ 固定ギヤ １４ 可動
ギヤ １５ ギヤインナー用針状ころ軸受 １６ 針状
ころ １７ 保持器 １８、１９ 環状
部 ２０ 柱部 ２１ ポケ
ット ２２ 油導入路DESCRIPTION OF SYMBOLS 10 Rotating shaft 11 Large diameter part of rotating shaft 10 12 Fixed gear 14 Movable gear 15 Needle roller bearing for gear inner 16 Needle roller 17 Cage 18, 19 Annular part 20 Column part 21 Pocket 22 Oil introduction path
Claims (1)
回動自在に支持するギヤインナー用針状ころ軸受であっ
て、 一対の環状部と、両環状部間に設けられて両環状部を軸
方向に一体に結合しかつ円周上に配置されて両環状部と
ともにそれぞれポケットを形成する複数の柱部とを一体
成形により形成された円筒形の合成樹脂製保持器と、該
保持器の各ポケットに保持される複数個の針状ころとか
らなり、 前記保持器が前記可動ギヤの内周面で摺動案内されると
ともに、円周数箇所に設けられる各ポケットの軸方向両
側部分の両環状部に、少なくとも各ポケット内に油を導
く油導入路が設けられていることを特徴とするギヤイン
ナー用針状ころ軸受。1. A needle roller bearing for a gear inner for rotatably supporting a movable gear mounted on an outer periphery of a rotating shaft, comprising: a pair of annular portions; and a pair of annular portions provided between the annular portions. A cylindrical synthetic resin retainer integrally formed in the axial direction and integrally formed with a plurality of pillar portions which are arranged on the circumference and form pockets together with both annular portions, and a cylindrical synthetic resin retainer; A plurality of needle rollers held in each pocket; the cage is slidably guided on the inner peripheral surface of the movable gear; A needle roller bearing for a gear inner, wherein both annular portions are provided with an oil introduction passage for guiding oil into at least each pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991051235U JP2528922Y2 (en) | 1991-07-03 | 1991-07-03 | Needle roller bearing for gear inner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991051235U JP2528922Y2 (en) | 1991-07-03 | 1991-07-03 | Needle roller bearing for gear inner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH053643U JPH053643U (en) | 1993-01-19 |
| JP2528922Y2 true JP2528922Y2 (en) | 1997-03-12 |
Family
ID=12881289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991051235U Expired - Lifetime JP2528922Y2 (en) | 1991-07-03 | 1991-07-03 | Needle roller bearing for gear inner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528922Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649052Y2 (en) * | 1979-05-09 | 1981-11-16 | ||
| JP4582271B2 (en) * | 2000-09-06 | 2010-11-17 | 株式会社ジェイテクト | Roller bearing |
| US8740470B2 (en) | 2010-09-15 | 2014-06-03 | Nsk Ltd. | Retainer for radial roller bearing |
-
1991
- 1991-07-03 JP JP1991051235U patent/JP2528922Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH053643U (en) | 1993-01-19 |
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