JP4715702B2 - Thrust roller bearing - Google Patents

Thrust roller bearing Download PDF

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JP4715702B2
JP4715702B2 JP2006267237A JP2006267237A JP4715702B2 JP 4715702 B2 JP4715702 B2 JP 4715702B2 JP 2006267237 A JP2006267237 A JP 2006267237A JP 2006267237 A JP2006267237 A JP 2006267237A JP 4715702 B2 JP4715702 B2 JP 4715702B2
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diameter side
flange
race
shim
inner diameter
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JP2008089001A (en
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正基 外山
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JTEKT Corp
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JTEKT Corp
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Description

本発明は非分離形のスラストころ軸受に係り、特に保持器の寸法制限を無くし、設計の自由度を向上させるようにしたものに関する。   The present invention relates to a non-separable type thrust roller bearing, and more particularly, to a structure in which the size limit of a cage is eliminated and the degree of freedom in design is improved.

従来のスラスト針状ころ軸受は、フランジを有し、そのフランジの開口縁に保持器の抜け止め用の係合部を設けた軌道輪を、フランジを有する外側軌道輪と、その外側軌道輪の内面に重ね合わせた環状軌道輪とで形成し、その軌道輪を保持器の軸方向両側にそれぞれ設け、各々の外側軌道輪のフランジに設けた係合部によって保持器の外径側と内径側を挟み込み、これら軌道輪と保持器とを一体とする非分離型のころ軸受としている（例えば、特許文献１参照）。
実開平６−２８３３８号公報（第６頁、第４図）。 A conventional thrust needle roller bearing has a flange, and an outer ring having a flange and an outer ring having the flange are provided on the opening edge of the flange. It is formed with annular race rings that are overlapped on the inner surface, and the race rings are provided on both sides in the axial direction of the cage, and the outer diameter side and inner diameter side of the cage are provided by engaging portions provided on the flanges of the outer race rings. And a non-separable roller bearing in which the raceway and the cage are integrated (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 6-28338 (page 6, FIG. 4).

上記従来のスラスト針状ころ軸受は、保持器の軸方向両側にそれぞれ設けた軌道輪の外側軌道輪のフランジに設けた係合部によって保持器の外径側と内径側を挟み込み、これら軌道輪と保持器とを一体とする非分離型としているため、保持器の内径及び外径の寸法及び形状は、外側軌道輪のフランジの高さと係合部の先端径によって制限されるという問題があった。
本発明はかかる問題点を解決するためになされたもので、保持器の寸法制限を無くし、設計の自由度を向上させることができるスラストころ軸受を得ることを目的とする。 The above-mentioned conventional thrust needle roller bearings sandwich the outer diameter side and the inner diameter side of the cage by engaging portions provided on flanges of outer race rings of the race rings provided on both sides in the axial direction of the cage. Therefore, the size and shape of the inner and outer diameters of the cage are limited by the flange height of the outer race and the tip diameter of the engaging portion. It was.
The present invention has been made to solve such problems, and an object of the present invention is to obtain a thrust roller bearing which can eliminate the dimensional limitation of the cage and improve the degree of freedom in design.

本発明に係るスラストころ軸受は、外径側にフランジを有する外径側レースと、内径側にフランジを有する内径側レースと、前記内径側レースの内面に配置したシムと、前記外径側レースと前記シムとの間に挟装され、ころを保持する保持器とで構成され、前記外径側レースのフランジの開口縁に内向きに設けた係止片で前記シムの外径側外面を抜け止めするよう係止し、前記内径側レースのフランジの開口縁に内向きに設けた係止片で前記シムの内径側内面を抜け止めするよう係止したものである。
また、前記係止片は前記フランジの開口縁全体を内向きに折り曲げて形成した輪状係止片又は前記フランジの開口縁の周方向に所要の間隔を置いて複数設けた突状係止片とするものである。 A thrust roller bearing according to the present invention includes an outer diameter side race having a flange on the outer diameter side, an inner diameter side race having a flange on the inner diameter side, a shim disposed on the inner surface of the inner diameter side race, and the outer diameter side race. Between the shim and the shim, and a retainer for holding the roller. The outer diameter side outer surface of the shim is formed by a locking piece provided inwardly on the opening edge of the flange of the outer diameter side race. It is locked so as to prevent it from coming off, and is locked so as to prevent the inner surface on the inner diameter side of the shim from coming off with a locking piece provided inwardly at the opening edge of the flange of the inner diameter side race.
Further, the locking piece is a ring-shaped locking piece formed by bending the entire opening edge of the flange inward, or a plurality of protruding locking pieces provided at a predetermined interval in the circumferential direction of the opening edge of the flange. To do.

以上説明したとおり本発明に係るスラストころ軸受によれば、外径側レースと内径側レースの内面に配置されたシムとの間にころを保持した保持器を挟装させ、外径側レースのフランジの開口縁に設けた係止片でシムの外径側外面を抜け止めするように係止し、内径側レースのフランジの開口縁に設けた係止片でシムの内径側内面を抜け止めするよう係止したので、外径側レースと内径側レースの内面に配置されたシムとの間に挟装された保持器の外径縁と外径側レースのフランジの内周面との間に隙間ができると共に保持器の内径縁と内径側レースのフランジの内周面との間にも隙間ができるため、その隙間の分だけ保持器の内径及び外径寸法又は形状の設計の自由度が向上する。
また、保持器は外径側レースと内径側レースの内面に配置されたシムとの間に挟装されるだけで、保持器には外径側レースと内径側レースのフランジの係止片による軸方向の力が掛からないため、従来のように剛性アップのために略Ｍ字状に曲げる必要も無く、シンプルな形状で済み、保持器の加工工程も削減することが可能となる。 As described above, according to the thrust roller bearing of the present invention, the retainer holding the roller is sandwiched between the outer diameter side race and the shim disposed on the inner surface of the inner diameter side race, Lock the outer diameter side of the shim with the locking piece provided at the opening edge of the flange, and lock the inner diameter side of the shim with the locking piece provided at the opening edge of the flange of the inner diameter side race. So that the outer diameter edge of the cage and the inner peripheral surface of the flange of the outer diameter side race are sandwiched between the outer diameter side race and the shim disposed on the inner surface of the inner diameter side race. Since there is a gap between the inner diameter edge of the cage and the inner peripheral surface of the flange of the inner diameter side race, the degree of freedom in designing the inner diameter and outer diameter dimensions or shape of the cage by that gap. Will improve.
Moreover, the cage is simply sandwiched between the outer diameter side race and the shim disposed on the inner surface of the inner diameter side race, and the cage is provided with a locking piece of the flange of the outer diameter side race and the inner diameter side race. Since no axial force is applied, there is no need to bend into a substantially M-shape for increasing rigidity as in the prior art, and a simple shape can be used, and the cage machining process can be reduced.

さらに、保持器は外径側レースと内径側レースの内面に配置されたシムとの間に挟装されるので、ころが転動するのは外径側レースとシムとなり、シムの背面に位置する内径側レースには従来のような材質及び表面硬さの制限がなくなり、内径側レースを制振材で形成すれば、騒音の低減効果もある。
また、内径側レースの内面に配置されたシムを厚みの異なるシムと入れ替えることによって軸受幅を軸受組付け部の寸法に一致させることができ、形状が複雑で加工の多いレースの交換に比べて工程が削減される。
また、係止片はをフランジの開口縁全体を内向きに折り曲げて形成した輪状係止片又はフランジの開口縁の周方向に所要の間隔を置いて複数設けた突状係止片とした場合に、上記の効果が得られる。 Furthermore, since the cage is sandwiched between the outer diameter side race and the shim disposed on the inner surface of the inner diameter side race, the roller rolls between the outer diameter side race and the shim and is located on the back of the shim. The inner race has no limitation on the material and surface hardness as in the prior art, and if the inner race is formed of a damping material, there is also a noise reduction effect.
In addition, by replacing the shim arranged on the inner surface of the inner diameter side race with a shim with a different thickness, the bearing width can be matched to the dimensions of the bearing assembly part, compared to the race with complicated shape and much processing The process is reduced.
In addition, when the locking piece is a ring-shaped locking piece formed by bending the entire opening edge of the flange inward, or a plurality of protruding locking pieces provided at a required interval in the circumferential direction of the opening edge of the flange In addition, the above effects can be obtained.

実施の形態１．
図１は本発明の実施の形態１のスラスト針状ころ軸受を示す縦断面図、図２は同スラストころ軸受の外径側レースの一部を示す斜視図である。
図１に示すように、本発明の実施の形態１に係るスラスト針状ころ軸受は、外径側にフランジ２を有する軌道輪である外径側レース１と、内径側にフランジ４を有する軌道輪である内径側レース３と、内径側レース３の内面に配置される環状板のシム５と、外径側レース１とシム５との間に挟装される保持器６と、保持器６に保持される針状ころ７とで構成されている。 Embodiment 1 FIG.
1 is a longitudinal sectional view showing a thrust needle roller bearing according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view showing a part of an outer diameter side race of the thrust roller bearing.
As shown in FIG. 1, the thrust needle roller bearing according to the first embodiment of the present invention has an outer race 1 that is a race ring having a flange 2 on the outer diameter side, and a race that has a flange 4 on the inner diameter side. An inner diameter race 3 that is a ring, an annular plate shim 5 disposed on the inner surface of the inner diameter race 3, a retainer 6 that is sandwiched between the outer diameter race 1 and the shim 5, and a retainer 6 The needle roller 7 is held by the needle roller 7.

外径側レース１のフランジ２にはその開口縁全体を内向きに折り曲げた輪状係止片８が設けられており、内径側レース３のフランジ４にはその開口縁全体を内向きに折り曲げた輪状係止片９が設けられている。
また、内径側レース３の内面に配置される環状板のシム５の幅は、内径側レース３の幅より大きい寸法に形成されている。
さらに、内径側レース３の内面に針状ころ７が転動するシム５が配置されるため、シム５は構造用鋼等の硬い金属材で形成される必要があるが、内径側レース３は硬い金属材で形成される必要はなく、制振金属や樹脂であってもよく。この実施の形態１では、例えばＭｎ−Ｃｕ、Ｆｅ−Ａｌ等を含む制振金属で形成されている。 The flange 2 of the outer diameter side race 1 is provided with a ring-shaped locking piece 8 whose entire opening edge is bent inwardly, and the flange 4 of the inner diameter side race 3 is bent inwardly with its entire opening edge. An annular locking piece 9 is provided.
Further, the width of the shim 5 of the annular plate arranged on the inner surface of the inner diameter side race 3 is formed to be larger than the width of the inner diameter side race 3.
Further, since the shim 5 on which the needle rollers 7 roll is arranged on the inner surface of the inner race 3, the shim 5 needs to be formed of a hard metal material such as structural steel. It is not necessary to be formed of a hard metal material, and may be a damping metal or a resin. In the first embodiment, it is formed of a damping metal containing, for example, Mn—Cu, Fe—Al or the like.

外径側レース１のフランジ２のフランジ高さは、外径側レース１と内径側レース３の内面に配置されたシム５との間に針状ころ７を保持した保持器６が挟装された場合にフランジ２に設けられた輪状係止片８がシム５を係止できるような高さに設定されている。
また、内径側レース３のフランジ４のフランジ高さは、外径側レース１と内径側レース３の内面に配置されたシム５との間に針状ころ７を保持した保持器６が挟装された場合にフランジ４に設けられた輪状係止片８が保持器６の内径縁より少し上にくるように設定されている。
さらに、保持器６は、一枚の環状に形成された金属板をプレス加工により断面略Ｍ字形になるよう折り曲げられて形成されている。その保持器６は円周方向等配位置に、針状ころ７を保持させるための複数のポケットが打ち抜き加工により形成されている。 As for the flange height of the flange 2 of the outer diameter side race 1, a cage 6 holding needle rollers 7 is sandwiched between the outer diameter side race 1 and a shim 5 arranged on the inner surface of the inner diameter side race 3. In such a case, the ring-shaped locking piece 8 provided on the flange 2 is set to such a height that the shim 5 can be locked.
Further, the flange height of the flange 4 of the inner diameter side race 3 is such that the cage 6 holding the needle roller 7 is sandwiched between the outer diameter side race 1 and the shim 5 disposed on the inner surface of the inner diameter side race 3. In this case, the ring-shaped locking piece 8 provided on the flange 4 is set to be slightly above the inner diameter edge of the cage 6.
Further, the cage 6 is formed by bending a single annular metal plate into a substantially M-shaped cross section by pressing. A plurality of pockets for holding the needle rollers 7 are formed by punching the retainer 6 at equidistant positions in the circumferential direction.

上記の構成からなるスラスト針状ころ軸受の組立は、外径側レース１のフランジ２の開口部から、まず針状ころ７を保持した保持器６を押し込み、次にシム５を押し込んでシム５の外径縁をフランジ２の輪状係止片８に係止させ、最後に内径側レース３をシム５に当接させると共に、内径側レース３のフランジ４の輪状係止片９が保持器６の内径縁より上に位置した状態となるように組み付ける。
なお、内径側レース３の軸方向の移動はシム５の内径縁に内径側レース３のフランジの輪状係止片が係止されることによって阻止される。 To assemble the thrust needle roller bearing having the above-described configuration, first, the retainer 6 holding the needle roller 7 is pushed in from the opening of the flange 2 of the outer diameter side race 1, and then the shim 5 is pushed in. The outer peripheral edge of the inner race 3 is locked to the ring-shaped locking piece 8 of the flange 2, and finally the inner diameter side race 3 is brought into contact with the shim 5, and the ring-shaped locking piece 9 of the flange 4 of the inner diameter side race 3 is fixed to the cage 6. Assemble so that it is located above the inner diameter edge of
In addition, the axial movement of the inner diameter side race 3 is prevented by locking the annular locking piece of the flange of the inner diameter side race 3 to the inner diameter edge of the shim 5.

上記実施の形態１のスラストころ軸受によれば、外径側レース１と内径側レース３の内面に配置されたシム５との間に針状ころ７を保持した保持器６が挟装された場合、外径側レース１のフランジ２の輪状係止片８がシム５の外径側外面を抜け止めするように係止すると共に、内径側レース３のフランジの４の輪状係止片９がシム５の内径側内面を抜け止めするよう係止することにより、外径側レース１と内径側レース３の内面に配置されたシム５との間に挟装された保持器６の外径縁と外径側レース１のフランジ２の内周面との間に隙間ができると共に保持器６の内径縁と内径側レース３のフランジ４の内周面との間にも隙間ができるため、その隙間の分だけ保持器の内径及び外径寸法又は形状の設計の自由度が向上する。   According to the thrust roller bearing of the first embodiment, the cage 6 holding the needle roller 7 is sandwiched between the outer diameter side race 1 and the shim 5 arranged on the inner surface of the inner diameter side race 3. In this case, the ring-shaped locking piece 8 of the flange 2 of the outer diameter side race 1 is locked to prevent the outer surface of the shim 5 from coming off, and the ring-shaped locking piece 9 of the flange 4 of the inner diameter side race 3 is fixed. The outer diameter edge of the retainer 6 sandwiched between the outer diameter side race 1 and the shim 5 disposed on the inner surface of the inner diameter side race 3 by locking the inner diameter side inner surface of the shim 5 to prevent the shim 5 from coming off. And a gap is also formed between the inner peripheral edge of the retainer 6 and the inner peripheral surface of the flange 4 of the inner diameter side race 3. The degree of freedom in designing the inner and outer diameter dimensions or shape of the cage is improved by the gap.

また、保持器６は外径側レース１と内径側レース３の内面に配置されたシム５との間に挟装されるだけで、外径側レース１と内径側レース３のフランジ２、４の輪状係止片８、９による軸方向の力が掛からないため、従来のように剛性アップのために略Ｍ字状に曲げる必要が無く、シンプルな形状で済み、保持器の加工工程も削減することが可能となる。
さらに、保持器６は外径側レース１と内径側レース３の内面に配置されたシム５との間に挟装されるので、針状ころ７が転動するのは外径側レース１とシム５となり、シム５の背面に位置する内径側レース２の従来のような材質及び表面硬さの制限がなくなり、内径側レース２を制振材で形成すれば、騒音の低減効果もある。
また、内径側レース３の内面に配置されたシム５を厚みの異なるシム５と入れ替えることによって軸受幅を軸受組付け部の寸法に一致させることができ、前と同様に加工の多いレースの交換に比べて工程が削減される。 Further, the cage 6 is simply sandwiched between the outer diameter side race 1 and the shim 5 disposed on the inner surface of the inner diameter side race 3, and the flanges 2, 4 of the outer diameter side race 1 and the inner diameter side race 3 are provided. Since no axial force is applied by the ring-shaped locking pieces 8 and 9, there is no need to bend into a substantially M-shape to increase rigidity as in the conventional case, and a simple shape is required, and the cage machining process is reduced. It becomes possible to do.
Further, since the cage 6 is sandwiched between the outer diameter side race 1 and the shim 5 arranged on the inner surface of the inner diameter side race 3, the needle roller 7 rolls with the outer diameter side race 1. If the inner diameter side race 2 located on the back surface of the shim 5 is not limited by the conventional material and surface hardness of the inner diameter side race 2, and the inner diameter side race 2 is formed of a damping material, there is also a noise reduction effect.
In addition, by replacing the shim 5 arranged on the inner surface of the inner race 3 with a shim 5 having a different thickness, the bearing width can be made to match the dimension of the bearing assembly portion. The number of processes is reduced compared to

実施の形態２．
図３は本発明の実施の形態２のスラスト針状ころ軸受を示す縦断面図である。
この実施の形態２において、実施の形態１と同様の構成は同一符号を付して重複した構成の説明を省略する。
この実施の形態２は、実施の形態１と内径側レース３のフランジ４のフランジ高さが異なるものである。 Embodiment 2. FIG.
FIG. 3 is a longitudinal sectional view showing a thrust needle roller bearing according to the second embodiment of the present invention.
In the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and the description of the overlapping components is omitted.
In the second embodiment, the flange height of the flange 4 of the inner diameter side race 3 is different from that of the first embodiment.

この実施の形態２の内径側レース３のフランジ４のフランジ高さは、外径側レース１と内径側レース３の内面に配置されたシム５との間に針状ころ７を保持した保持器６が挟装された場合にフランジ４に設けられた輪状係止片８がシム５を係止できるような高さに設定されている。
従って、内径側レース３のフランジ４のフランジ高さは、実施の形態１の場合に比べて小さくなり、その分軽量化を図ることができ、また保持器６等の他の部品との干渉の可能性が減少するものである。それ以外は実施の形態１と同様の作用、効果を有する。 The flange height of the flange 4 of the inner diameter side race 3 of the second embodiment is such that the needle roller 7 is held between the outer diameter side race 1 and the shim 5 arranged on the inner surface of the inner diameter side race 3. The height is set such that the ring-shaped locking piece 8 provided on the flange 4 can lock the shim 5 when 6 is sandwiched.
Therefore, the flange height of the flange 4 of the inner diameter side race 3 is smaller than that of the first embodiment, and the weight can be reduced correspondingly, and interference with other parts such as the cage 6 can be avoided. The possibility is reduced. Other than that, it has the same operations and effects as the first embodiment.

上記実施の形態１、２では、外径側レース１のフランジ２に輪状係止片８が設けられており、内径側レース３のフランジ４に輪状係止片９が設けられているが、輪状係止片８、９の代わりに、フランジ２、４の開口縁の周方向に所要の間隔を置いて突状係止片を複数設けるようにしてもよい。
また、上記実施の形態１、２では、いずれも保持器は一枚ものとしているが、一枚物ではなく、一般的に知られている二枚の環状板を組合わせた構成のものとしてもよいことは勿論である。 In the first and second embodiments, the annular locking piece 8 is provided on the flange 2 of the outer race 1 and the annular locking piece 9 is provided on the flange 4 of the inner race 3. Instead of the locking pieces 8 and 9, a plurality of protruding locking pieces may be provided at a necessary interval in the circumferential direction of the opening edges of the flanges 2 and 4.
In the first and second embodiments, the cage is one piece, but it is not a single piece and may be a combination of two generally known annular plates. Of course it is good.

本発明の実施の形態１のスラストころ軸受を示す縦断面図。1 is a longitudinal sectional view showing a thrust roller bearing according to a first embodiment of the present invention. 同スラストころ軸受の外径側レースの一部を示す斜視図。The perspective view which shows a part of outer diameter side race of the thrust roller bearing. 本発明の実施の形態２のスラストころ軸受を示す縦断面図。The longitudinal cross-sectional view which shows the thrust roller bearing of Embodiment 2 of this invention.

符号の説明Explanation of symbols

１ 外径側レース、２ フランジ、３ 内径側レース、４ フランジ、５ シム、６ 保持器、７ 針状ころ、８ 輪状係止片、９ 輪状係止片。   1 outer diameter side race, 2 flange, 3 inner diameter side race, 4 flange, 5 shim, 6 cage, 7 needle roller, 8 ring-shaped locking piece, 9 ring-shaped locking piece.

Claims (2)

外径側にフランジを有する外径側レースと、内径側にフランジを有する内径側レースと、前記内径側レースの内面に配置したシムと、前記外径側レースと前記シムとの間に挟装され、ころを保持する保持器とで構成され、
前記外径側レースのフランジの開口縁に内向きに設けた係止片で前記シムの外径側外面を抜け止めするように係止し、
前記内径側レースのフランジの開口縁に内向きに設けた係止片で前記シムの内径側内面を抜け止めするように係止したことを特徴とするスラストころ軸受。 An outer diameter side race having a flange on the outer diameter side, an inner diameter side race having a flange on the inner diameter side, a shim disposed on the inner surface of the inner diameter side race, and sandwiched between the outer diameter side race and the shim Consists of a cage that holds the rollers,
Locking the outer diameter side outer surface of the shim with a locking piece provided inwardly at the opening edge of the flange of the outer diameter side race so as to prevent it from coming off,
A thrust roller bearing, wherein a locking piece provided inwardly on an opening edge of the flange of the inner diameter side race is locked so as to prevent the inner diameter side inner surface of the shim from coming off. 前記係止片は前記フランジの開口縁全体を内向きに折り曲げて形成した輪状係止片又は前記フランジの開口縁の周方向に所要の間隔を置いて複数設けた突状係止片であることを特徴とする請求項１記載のスラストころ軸受。   The locking piece is a ring-shaped locking piece formed by bending the entire opening edge of the flange inward, or a plurality of protruding locking pieces provided at a predetermined interval in the circumferential direction of the opening edge of the flange. The thrust roller bearing according to claim 1.
JP2006267237A 2006-09-29 2006-09-29 Thrust roller bearing Expired - Fee Related JP4715702B2 (en)

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JP4715702B2 true JP4715702B2 (en) 2011-07-06

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041720U (en) * 1990-04-19 1992-01-08
JPH0628338U (en) * 1992-09-16 1994-04-15 エヌティエヌ株式会社 Thrust needle roller bearing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041720U (en) * 1990-04-19 1992-01-08
JPH0628338U (en) * 1992-09-16 1994-04-15 エヌティエヌ株式会社 Thrust needle roller bearing

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