JP2002039187A - Cage for rolling bearing - Google Patents
Cage for rolling bearingInfo
- Publication number
- JP2002039187A JP2002039187A JP2000220384A JP2000220384A JP2002039187A JP 2002039187 A JP2002039187 A JP 2002039187A JP 2000220384 A JP2000220384 A JP 2000220384A JP 2000220384 A JP2000220384 A JP 2000220384A JP 2002039187 A JP2002039187 A JP 2002039187A
- Authority
- JP
- Japan
- Prior art keywords
- cage
- rolling
- portions
- present
- rolling bearing
- 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.)
- Withdrawn
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、玉軸受、円筒こ
ろ軸受等の各種転がり軸受を構成する複数個の転動体
を、それぞれ円周方向に亙り互いに離隔した状態で転動
自在に保持する為の転がり軸受用保持器の改良に関す
る。特に、本発明の転がり軸受用保持器は、転がり軸受
の運転時に、上記複数個の転動体を設置した空間内に封
入若しくは供給した潤滑剤を効率良く撹拌し、この空間
内に存在する接触部の潤滑を良好にするものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for holding a plurality of rolling elements constituting various rolling bearings such as ball bearings and cylindrical roller bearings so as to freely roll in a state of being separated from one another in a circumferential direction. The improvement of cages for rolling bearings. In particular, the cage for a rolling bearing of the present invention, when the rolling bearing is operated, efficiently agitates the lubricant sealed or supplied in the space in which the plurality of rolling elements are installed, and the contact portion existing in the space. To improve the lubrication.
【０００２】[0002]
【従来の技術】各種回転支持部分に、玉軸受、円筒ころ
軸受等の各種転がり軸受が使用されている。図３〜４
は、この様な転がり軸受の１例を示している。この玉軸
受１は、外周面に内輪軌道２を有する内輪３と、内周面
に外輪軌道４を有する外輪５とを互いに同心に配置し、
上記内輪軌道２と外輪軌道４との間に複数個の玉６、６
を転動自在に設けて成る。又、これら複数個の玉６、６
は、保持器７に設けたポケット８、８内に、転動自在に
保持している。2. Description of the Related Art Various rolling bearings, such as ball bearings and cylindrical roller bearings, are used for various kinds of rotation supporting portions. Figures 3 and 4
Shows an example of such a rolling bearing. In this ball bearing 1, an inner race 3 having an inner raceway 2 on an outer peripheral surface and an outer race 5 having an outer raceway 4 on an inner peripheral surface are arranged concentrically with each other.
A plurality of balls 6, 6 are provided between the inner raceway 2 and the outer raceway 4.
Are provided so as to freely roll. Also, the plurality of balls 6, 6
Are rotatably held in pockets 8 provided in the holder 7.
【０００３】従来構造の１例である、この保持器７は、
金属板に打ち抜き加工並びに曲げ加工等のプレス加工を
施して成り、図３〜６に示す様に構成している。即ち、
この保持器７は、それぞれが円環状で、互いに同心に配
置した１対のリム部９、９（連結部）と、これら両リム
部９、９同士を互いに連結する複数本の柱部１０、１０
とを備える。これら各柱部１０、１０は、円周方向に亙
ってそれぞれ等間隔に配置しており、それぞれの軸方向
両端部を、それぞれ上記各リム部９、９の内側縁に連続
させている。そして、これら各柱部１０、１０の円周方
向両側縁と上記各リム部９、９の内側縁とにより四方を
囲まれた部分を、上記ポケット８、８としている。[0003] This retainer 7, which is an example of a conventional structure,
Pressing such as punching and bending is performed on a metal plate, and is configured as shown in FIGS. That is,
The retainer 7 has a pair of rim portions 9, 9 (connecting portions) each of which is annular and is concentrically arranged with each other, and a plurality of pillar portions 10 connecting these rim portions 9, 9 to each other. 10
And These pillars 10, 10 are arranged at regular intervals in the circumferential direction, and both ends in the axial direction are respectively connected to the inner edges of the rims 9, 9, respectively. Portions surrounded on four sides by the circumferential side edges of the pillars 10 and the inner edges of the rims 9 are the pockets 8.
【０００４】上述の様な保持器７を上述の様な玉軸受１
に組み込んだ状態で、上記内輪３と外輪５とが相対回転
すると、上記各玉６、６が転動（自転）しつつ公転し
て、この相対回転を許容する。この際、これら各玉６、
６の転動面と上記各ポケット８、８の内面とが摺接しつ
つ、上記保持器７が、上記玉６、６の公転速度と同じ速
度で回転する。又、この様に玉軸受１を運転する際に、
上記各玉６、６の転動面と前記内輪、外輪両軌道２、４
との転がり接触部、及び上記各玉６、６の転動面と上記
各ポケット８、８の内面との滑り接触部（更に、上記保
持器７を上記内輪３若しくは外輪５により案内する場合
には、これら保持器７の周面と内輪３若しくは外輪５の
周面との滑り接触部）は、それぞれ潤滑油、グリース等
の潤滑剤により潤滑し、特に上記玉軸受１を高速回転さ
せる場合でも、上記各接触部で異常発熱や焼き付き等の
損傷が発生するのを防止する。The above-described cage 7 is connected to the above-described ball bearing 1.
When the inner race 3 and the outer race 5 rotate relative to each other in a state in which the balls 6 are assembled, the balls 6 revolve while rolling (rotating) to allow this relative rotation. At this time, each of these balls 6,
The cage 7 rotates at the same speed as the revolving speed of the balls 6, 6 while the rolling surface 6 and the inner surfaces of the pockets 8, 8 are in sliding contact with each other. When the ball bearing 1 is operated in this way,
The rolling surfaces of the balls 6, 6 and the inner and outer raceways 2, 4
And a sliding contact between the rolling surfaces of the balls 6, 6 and the inner surfaces of the pockets 8, 8 (when the retainer 7 is guided by the inner ring 3 or the outer ring 5, The sliding contact between the circumferential surface of the cage 7 and the circumferential surface of the inner ring 3 or the outer ring 5 is lubricated with a lubricant such as lubricating oil or grease. In addition, it is possible to prevent the occurrence of damage such as abnormal heat generation or burn-in at each of the contact portions.
【０００５】[0005]
【発明が解決しようとする課題】上述した様な玉軸受１
を、例えばグリース潤滑や油浴潤滑等の潤滑状態で運転
する場合、上記各玉６、６及び保持器７を設置した空間
内に充填若しくは供給されたグリースや潤滑油等の潤滑
剤は、上記保持器７を構成する各柱部１０、１０により
撹拌されて、上記各接触部に送り込まれる。従って、こ
れら各接触部の潤滑状態を良好にすべく、これら各接触
部に上記潤滑剤を効率良く送り込む為には、上記各柱部
１０、１０による潤滑剤の撹拌効果を良好にする必要が
ある。A ball bearing 1 as described above.
Is operated in a lubricating state such as grease lubrication or oil bath lubrication, the lubricant such as grease or lubricating oil filled or supplied into the space where the balls 6, 6 and the retainer 7 are installed is as described above. The mixture is agitated by the pillars 10 and 10 constituting the retainer 7 and is sent into the contact portions. Therefore, in order to improve the lubrication state of each of the contact portions and to efficiently feed the lubricant into the respective contact portions, it is necessary to improve the effect of stirring the lubricant by the column portions 10 and 10. is there.
【０００６】ところが、上述した保持器７を含む、従来
の転がり軸受用保持器の場合には、図６に示す様に、こ
の保持器７の中心軸βに対する上記各柱部１０、１０の
中心軸αの傾斜角度を、円周方向に隣り合う柱部１０、
１０同士の間で互いに等しくしている。この為、これら
各柱部１０、１０の配置状態が単調になり、これら各柱
部１０、１０による潤滑剤の撹拌効果を十分に得る事が
できなかった。この結果、この潤滑剤を上記各接触部に
効率良く送り込めなくなり、これら各接触部で潤滑不足
を生じる場合があった。又、上記各柱部１０、１０の中
心軸αの傾斜角度が円周方向に亙り均一になっている
為、潤滑剤が上記空間の特定の個所に片寄って存在する
様になり、やはりこの特定の個所以外の部分で潤滑不足
を生じる場合があった。本発明の転がり軸受用保持器
は、上述の様な事情に鑑みて、複数の柱部の配置状態を
工夫する事により、これら各柱部による潤滑剤の撹拌効
果を大きくして、上記各接触部の潤滑状態を良好にすべ
く発明したものである。However, in the case of a conventional rolling bearing cage including the above-described cage 7, as shown in FIG. 6, the center of each of the pillars 10, 10 with respect to the center axis β of the cage 7 is used. The inclination angle of the axis α is set to
10 are equal to each other. For this reason, the arrangement of the pillars 10 and 10 is monotonous, and the effect of stirring the lubricant by the pillars 10 and 10 cannot be sufficiently obtained. As a result, the lubricant cannot be efficiently sent to each of the contact portions, and there is a case where the lubrication is insufficient at each of the contact portions. In addition, since the inclination angle of the central axis α of each of the pillars 10 and 10 is uniform in the circumferential direction, the lubricant is present at a specific position in the space, and the lubricant is also offset. In some cases, insufficient lubrication occurred in portions other than the above. In consideration of the above-described circumstances, the rolling bearing cage of the present invention enhances the effect of agitation of the lubricant by each of the pillars by devising the arrangement of the plurality of pillars, thereby increasing It was invented to improve the lubrication state of the part.
【０００７】[0007]
【課題を解決するための手段】本発明の転がり軸受用保
持器は、前述した従来構造の場合と同様、転がり軸受を
構成する複数個の転動体を、それぞれ円周方向に亙り互
いに離隔した状態で転動自在に保持自在とすべく、それ
ぞれ円周方向に隣り合う上記各転動体同士の間に配置す
る複数本の柱部と、これら各柱部の軸方向両端縁のうち
の少なくとも一方の端縁同士を互いに連結する環状の連
結部とを備える。特に、本発明の転がり軸受用保持器に
於いては、この転がり軸受用保持器の中心軸に対する上
記各柱部の中心軸の傾斜角度が、円周方向に隣り合う各
柱部同士で互いに異なる。According to the present invention, there is provided a rolling bearing cage in which a plurality of rolling elements constituting a rolling bearing are separated from each other in a circumferential direction, as in the case of the above-described conventional structure. A plurality of pillars arranged between the rolling elements adjacent to each other in the circumferential direction, and at least one of axial ends of the pillars. An annular connecting portion that connects the edges to each other. In particular, in the cage for rolling bearings of the present invention, the inclination angle of the central axis of each of the column portions with respect to the central axis of the cage for rolling bearings is different between the column portions adjacent in the circumferential direction. .
【０００８】[0008]
【作用】上述の様に構成する本発明の転がり軸受用保持
器の場合には、この転がり軸受用保持器の中心軸に対す
る各柱部の中心軸の傾斜角度を、円周方向に隣り合う柱
部同士の間で互いに異ならせている。この為、これら各
柱部の配置状態が（単調とならず）複雑となり、転がり
軸受の運転時に、これら各柱部による潤滑剤の撹拌効果
を十分に大きくできる。即ち、上述の様に円周方向に隣
り合う柱部同士で互いの中心軸の傾斜角度を異ならせて
いる本発明の場合、転がり軸受の運転時に保持器が回転
すると、一種のポンプ作用が発生し、上記潤滑剤の撹拌
効果を十分に大きくできる。In the case of the cage for a rolling bearing of the present invention constructed as described above, the inclination angle of the central axis of each column with respect to the central axis of the cage for the rolling bearing is determined by adjusting the inclination angle of the column adjacent to the circumferential direction. The parts are different from each other. For this reason, the arrangement of these pillars becomes complicated (not monotonous), and the effect of stirring the lubricant by the pillars during operation of the rolling bearing can be sufficiently increased. That is, as described above, in the case of the present invention in which the inclination angles of the center axes of the pillar portions adjacent in the circumferential direction are different from each other, when the cage rotates during the operation of the rolling bearing, a kind of pump action occurs. However, the effect of stirring the lubricant can be sufficiently increased.
【０００９】従って、本発明の場合には、複数個の転動
体の転動面と内輪、外輪両軌道との転がり接触部や、こ
れら各転動体の転動面と上記保持器の表面（ポケットの
内面）との滑り接触部等の各接触部に、上記潤滑剤を効
率良く送り込む事ができる。この結果、これら各接触部
の潤滑状態を良好にできる。又、本発明の場合には、上
記各柱部の中心軸の傾斜角度が全周に亙って均一でない
為、上記潤滑剤が転がり軸受の内部の特定の個所に片寄
って存在する様になる事を防止できる。この為、この特
定の個所以外の部分で潤滑不足が生じる事を防止でき
る。Therefore, in the case of the present invention, the rolling contact portions between the rolling surfaces of the plurality of rolling elements and the inner and outer raceways and the rolling surfaces of these rolling elements and the surface (pocket) of the cage are described. The lubricant can be efficiently fed into each contact portion such as a sliding contact portion with the inner surface of the lubricant. As a result, the lubrication state of each of these contact portions can be improved. Further, in the case of the present invention, since the inclination angle of the central axis of each of the column portions is not uniform over the entire circumference, the lubricant is present at a specific position inside the rolling bearing. Things can be prevented. For this reason, it is possible to prevent insufficient lubrication from occurring in portions other than the specific portion.
【００１０】[0010]
【発明の実施の形態】図１〜２は、本発明の実施の形態
の１例を示している。尚、本例の特徴は、保持器７ａを
構成する各柱部１０ａ、１０ａの配置状態を工夫した点
にある。その他、本例の保持器７ａの基本構造、並びに
本例の保持器７ａを組み込む転がり軸受（玉軸受１）の
構造は、前述した従来構造の場合とほぼ同様であるか
ら、同等部分には同一符号を付して重複する説明を省略
若しくは簡略にし、以下、本発明の特徴部分を中心に説
明する。1 and 2 show an embodiment of the present invention. The feature of this embodiment lies in that the arrangement of the pillars 10a and 10a constituting the retainer 7a is devised. In addition, the basic structure of the cage 7a of the present embodiment and the structure of the rolling bearing (ball bearing 1) incorporating the cage 7a of the present embodiment are almost the same as those of the above-described conventional structure. The description will be omitted or simplified by assigning the reference numerals, and the following description will focus on features of the present invention.
【００１１】図２に示す様に、本例の保持器７ａの場合
には、この保持器７ａの中心軸βに対する上記各柱部１
０ａ、１０ａの中心軸αの傾斜角度を、円周方向に隣り
合う各柱部１０ａ、１０ａ同士の間で互いに異ならせて
いる。即ち、本例の場合、上記各柱部１０ａ、１０ａの
中心軸αを、それぞれ上記保持器７ａの中心軸βを含
み、各柱部１０ａ、１０ａ毎に異なる仮想平面内に配置
している。これと共に、この保持器７ａの中心軸βと平
行な軸線γに対する上記各柱部１０ａ、１０ａの中心軸
αの傾斜角度を、±θの範囲内で、円周方向に亙り正弦
的に少しずつ変化させている。又、本例の場合、この様
に各柱部１０ａ、１０ａの傾斜角度を変化させた事に伴
い、これら各柱部１０ａ、１０ａの軸方向端縁同士を連
結する、それぞれが環状である１対のリム部９ａ、９ａ
を、それぞれ円周方向に亙る波形に形成している。本例
の場合、これら波形に形成した１対のリム部９ａ、９ａ
の円周方向に関する位相は、互いに半周期ずれている。As shown in FIG. 2, in the case of the retainer 7a of the present embodiment, each of the column portions 1 with respect to the central axis β of the retainer 7a.
The inclination angles of the central axes α of 0a and 10a are different between the column portions 10a and 10a adjacent in the circumferential direction. That is, in the case of the present example, the center axis α of each of the pillars 10a and 10a includes the center axis β of the holder 7a, and is arranged in a different virtual plane for each of the pillars 10a and 10a. At the same time, the inclination angle of the central axis α of each of the pillars 10a and 10a with respect to the axis γ parallel to the central axis β of the retainer 7a is sinusoidally gradually in the circumferential direction within a range of ± θ. Is changing. In the case of the present example, the axial ends of the pillars 10a and 10a are connected to each other by changing the inclination angles of the pillars 10a and 10a. Pair of rims 9a, 9a
Are formed in waveforms extending in the circumferential direction, respectively. In the case of this example, a pair of rim portions 9a, 9a formed in these waveforms
Are shifted by half a cycle from each other in the circumferential direction.
【００１２】上述の様に構成する本例の保持器７ａの場
合には、この保持器７ａの中心軸βに対する上記各柱部
１０ａ、１０ａの中心軸αの傾斜角度を、円周方向に隣
り合う柱部１０ａ、１０ａ同士の間で互いに異ならせて
いる。この為、これら各柱部１０ａ、１０ａの配置状態
が（単調とならず）複雑となり、玉軸受１の運転時に、
これら各柱部１０ａ、１０ａによる潤滑剤の撹拌効果を
十分に大きくできる。即ち、上述の様に円周方向に隣り
合う柱部１０ａ、１０ａ同士で互いの中心軸αの傾斜角
度を異ならせている本発明の場合、上記玉軸受１の運転
時に上記保持器７ａが回転すると、一種のポンプ作用が
発生し、上記潤滑剤の撹拌効果を十分に大きくできる。In the case of the retainer 7a of the present embodiment configured as described above, the inclination angle of the central axis α of each of the column portions 10a and 10a with respect to the central axis β of the The column portions 10a and 10a that match each other are different from each other. For this reason, the arrangement state of these pillar portions 10a and 10a becomes complicated (not monotonous), and during operation of the ball bearing 1,
The effect of stirring the lubricant by the pillars 10a, 10a can be sufficiently increased. That is, as described above, in the case of the present invention in which the column portions 10a and 10a that are adjacent to each other in the circumferential direction have different inclination angles of the central axes α, the cage 7a rotates during the operation of the ball bearing 1. Then, a kind of pump action is generated, and the effect of stirring the lubricant can be sufficiently increased.
【００１３】従って、本発明の場合には、複数個の玉
６、６の転動面と内輪、外輪両軌道２、４との転がり接
触部や、これら各玉６、６の転動面と上記保持器７ａを
構成するポケット８、８の内面との滑り接触部等の接触
部に、上記潤滑剤を効率良く送り込む事ができる。この
結果、これら各接触部の潤滑状態を良好にできる。又、
本発明の場合には、上記各柱部１０ａ、１０ａの中心軸
αの傾斜角度が全周に亙って均一でない為、上記潤滑剤
が玉軸受１の内部の特定の個所に片寄って存在する様に
なる事を防止できる。この為、この特定の個所以外の部
分で潤滑不足が生じる事を防止できる。Therefore, in the case of the present invention, the rolling surfaces of the plurality of balls 6, 6 and the rolling contact portions between the inner and outer races 2, 4 and the rolling surfaces of these balls 6, 6 The lubricant can be efficiently fed into a contact portion such as a sliding contact portion with the inner surfaces of the pockets 8 constituting the retainer 7a. As a result, the lubrication state of each of these contact portions can be improved. or,
In the case of the present invention, since the inclination angle of the central axis α of each of the column portions 10a and 10a is not uniform over the entire circumference, the lubricant is present at a specific position inside the ball bearing 1 in a biased manner. Can be prevented. For this reason, it is possible to prevent insufficient lubrication from occurring in portions other than the specific portion.
【００１４】更に、本発明の保持器７ａは、以下の様な
作用・効果も奏する。即ち、前述した従来構造の保持器
７の様に、複数個の柱部１０ａ、１０ａの中心軸αを、
円周方向に隣り合う柱部１０ａ、１０ａ同士の間で互い
に平行にした場合、これら各柱部１０ａ、１０ａが複数
個の玉６、６の自転運動に及ぼす影響は小さい。即ち、
従来構造の保持器７を組み込んだ玉軸受１の運転時、上
記各玉６、６は、この玉軸受１の中心軸と平行な自転軸
回りに自転を行ない、上記玉６、６と上記柱部１０ａ、
１０ａとが接触する事に基づいて上記自転軸がぶれる事
は殆どない。この為、上記各玉６、６の転動面と上記保
持器７を構成するポケット８、８の内面とは、常に同じ
位置で摺接する様になる。特に、グリース潤滑の場合に
は、上記保持器７側に付着したグリースが上記ポケット
８、８の内面と上記玉６、６の転動面との摺接部を潤滑
する為に機能するが、上述の様にこれら内面と転動面と
が常に同じ位置で摺接する様になると、上記保持器７の
一部（例えば、上記各ポケット８、８の開口周縁部）で
上記摺接部の潤滑に供する為のグリースが掻き取られて
しまい、この摺接部で潤滑不良が発生する可能性があ
る。Further, the retainer 7a of the present invention has the following operation and effects. That is, like the above-described cage 7 having the conventional structure, the central axis α of the plurality of pillars 10a and 10a is
When the pillars 10a, 10a adjacent to each other in the circumferential direction are parallel to each other, the influence of the pillars 10a, 10a on the rotation of the plurality of balls 6, 6 is small. That is,
During operation of the ball bearing 1 incorporating the cage 7 of the conventional structure, the balls 6, 6 rotate around a rotation axis parallel to the central axis of the ball bearing 1, and the balls 6, 6 and the column Part 10a,
The rotation axis hardly shakes due to the contact with 10a. For this reason, the rolling surfaces of the balls 6, 6 and the inner surfaces of the pockets 8, 8 constituting the retainer 7 always come into sliding contact at the same position. In particular, in the case of grease lubrication, grease adhering to the retainer 7 functions to lubricate a sliding contact portion between the inner surfaces of the pockets 8, 8 and the rolling surfaces of the balls 6, 6, As described above, when the inner surface and the rolling surface always come into sliding contact with each other at the same position, a part of the cage 7 (for example, the peripheral edge of the opening of each of the pockets 8, 8) lubricates the sliding contact portion. Grease to be supplied to the sliding portion may be scraped off, and poor lubrication may occur at the sliding contact portion.
【００１５】これに対して、本発明の保持器７ａの場合
には、複数の柱部１０ａ、１０ａの傾斜角度が円周方向
に亙り正弦的に変化している為、これら各柱部１０ａ、
１０ａが上記各玉６、６に接触する事に基づき、これら
各玉６、６の自転軸がぶれて、これら各玉６、６の自転
運動が（単純でなく）複合的なものとなる。この結果、
上記各玉６、６の転動面と上記保持器７ａを構成するポ
ケット８、８の内面とが、常に同じ位置で摺接する事が
なくなる。この為、上記保持器７ａの一部で上記摺接部
の潤滑に供されるグリースが過度に掻き取られる事もな
くなり、この摺接部で潤滑不良が発生する事を防止でき
る。又、上記各玉６、６の転走面を常に変化する為、こ
れら各玉６、６の転走面にも、十分に潤滑剤を付着させ
ておける。この様に本発明の場合には、前述したポンプ
効果に基づく潤滑作用に加えて、上述した玉６、６の複
合的な自転運動に基づく潤滑作用を発生させる。この
為、優れた潤滑性能を有する玉軸受１を実現できる。On the other hand, in the case of the cage 7a of the present invention, since the inclination angles of the plurality of pillars 10a, 10a vary sinusoidally in the circumferential direction, each of the pillars 10a, 10a,
Based on the contact of the balls 10a with the balls 6, 6, the rotation axes of the balls 6, 6 are shaken, and the rotation of the balls 6, 6 becomes complex (not simple). As a result,
The rolling surfaces of the balls 6, 6 and the inner surfaces of the pockets 8, 8 constituting the retainer 7a do not always come into sliding contact at the same position. For this reason, the grease used for lubricating the sliding contact portion in a part of the retainer 7a is not excessively scraped off, and the occurrence of poor lubrication in the sliding contact portion can be prevented. Further, since the rolling surface of each of the balls 6, 6 is constantly changed, a lubricant can be sufficiently adhered to the rolling surface of each of the balls 6, 6 as well. As described above, in the case of the present invention, in addition to the above-described lubricating action based on the pump effect, the above-described lubricating action based on the combined rotation of the balls 6, 6 is generated. For this reason, the ball bearing 1 having excellent lubrication performance can be realized.
【００１６】尚、本発明の対象となる転がり軸受用保持
器は、上述した型式のものには限られない。即ち、本発
明は、円周方向に隣り合う転動体同士の間に配置する複
数本の柱部と、これら各柱部の軸方向両端縁のうちの少
なくとも一方の端縁同士を連結する環状の連結部とを備
えた保持器であれば、従来から知られている各種保持器
に適用できる。従って、上述した様な玉軸受用のものに
限らず、円筒ころ軸受等の各種転がり軸受用のものにも
適用できる。更には、ラジアル転がり軸受用のものだけ
でなく、スラスト転がり軸受用のものにも適用できる。
又、本発明の保持器を造る場合、保持器の材質が金属の
場合にはプレス等の塑性加工や切削加工等により、同じ
く材質が合成樹脂の場合には射出成形等により、それぞ
れ造る事ができる。又、本発明は、転動体を離隔させる
為の柱部を連結部に対し片持ち式に支持する、冠型保持
器で実施する事もできる。又、本発明を実施する場合、
複数本の柱部の傾斜角度を円周方向に亙り変化させる回
数（うねりの数）は、１〜２Ｚ（Ｚは、本発明の保持器
を組み込む転がり軸受を構成する転動体の個数）程度の
範囲で、使用環境等に応じて設定する。The rolling bearing retainer to which the present invention is applied is not limited to the above-mentioned type. That is, the present invention provides a plurality of pillars arranged between rolling elements adjacent in the circumferential direction, and an annular ring connecting at least one edge of both axial edges of each pillar. As long as the retainer includes a connecting portion, the retainer can be applied to various types of conventionally known retainers. Therefore, the present invention can be applied not only to the above-described ball bearings but also to various rolling bearings such as cylindrical roller bearings. Furthermore, the present invention can be applied not only to radial rolling bearings but also to thrust rolling bearings.
Also, when manufacturing the cage of the present invention, when the material of the cage is metal, it can be manufactured by plastic working such as pressing or cutting, etc., and when the material is synthetic resin, by injection molding or the like. it can. Further, the present invention can also be implemented by a crown type retainer that supports a column for separating a rolling element in a cantilever manner with respect to a connecting portion. Also, when practicing the present invention,
The number of times (the number of undulations) of changing the inclination angles of the plurality of pillar portions in the circumferential direction is about 1 to 2Z (Z is the number of rolling elements constituting a rolling bearing incorporating the cage of the present invention). Set according to the usage environment within the range.
【００１７】[0017]
【発明の効果】本発明の転がり軸受用保持器は、以上に
述べた通り構成され作用する為、転がり軸受を構成する
複数個の転動体を設置した空間内に封入若しくは供給し
た潤滑剤を効率良く撹拌して、この空間内に存在する接
触部を良好に潤滑する事ができる。As described above, the cage for a rolling bearing of the present invention is constructed and operates as described above. Therefore, the lubricant sealed or supplied in the space in which a plurality of rolling elements constituting the rolling bearing are installed is efficiently used. With good stirring, the contact portion existing in this space can be lubricated well.
【図１】本発明の実施の形態の１例を組み込んだ玉軸受
の断面図。FIG. 1 is a sectional view of a ball bearing incorporating an example of an embodiment of the present invention.
【図２】保持器を構成する柱部の中心軸αの傾斜角度が
円周方向に亙り変化する状態を示しており、（Ａ）は、
図１のａ−ａ断面図を、（Ｂ）は、同図のｂ−ｂ断面図
を、（Ｃ）は、同図のｃ−ｃ断面図を、（Ｄ）は、同図
のｄ−ｄ断面図を、それぞれ示す。FIG. 2 shows a state in which the inclination angle of a central axis α of a pillar portion forming a retainer changes in a circumferential direction.
1 (a), (B) is a bb sectional view of the same figure, (C) is a cc sectional view of the same figure, and (D) is a dc sectional view of the same figure. d Sectional views are shown.
【図３】保持器の従来構造の１例を組み込んだ玉軸受の
部分切断斜視図。FIG. 3 is a partially cutaway perspective view of a ball bearing incorporating one example of a conventional structure of a cage.
【図４】同じく、断面図。FIG. 4 is also a sectional view.
【図５】保持器の一部を径方向から見た図。FIG. 5 is a diagram of a part of the retainer viewed from a radial direction.
【図６】保持器を構成する柱部の中心軸αの傾斜角度が
円周方向に亙り変化しない状態を示しており、（Ａ）
は、図４のａ−ａ断面図を、（Ｂ）は、同図のｂ−ｂ断
面図を、（Ｃ）は、同図のｃ−ｃ断面図を、（Ｄ）は、
同図のｄ−ｄ断面図を、それぞれ示す。FIG. 6A shows a state in which the inclination angle of the central axis α of the pillar portion forming the retainer does not change in the circumferential direction, and FIG.
4 is a sectional view taken along the line aa in FIG. 4, (B) is a sectional view taken along the line bb in FIG. 4, (C) is a sectional view taken along the line cc in FIG.
The dd sectional views of FIG.
１ 玉軸受 ２ 内輪軌道 ３ 内輪 ４ 外輪軌道 ５ 外輪 ６ 玉 ７、７ａ 保持器 ８ ポケット ９、９ａ リム部 １０、１０ａ 柱部 DESCRIPTION OF SYMBOLS 1 Ball bearing 2 Inner raceway 3 Inner race 4 Outer raceway 5 Outer race 6 Ball 7, 7a Cage 8 Pocket 9, 9a Rim part 10, 10a Column part
Claims (1)
を、それぞれ円周方向に亙り互いに離隔した状態で転動
自在に保持自在とすべく、それぞれ円周方向に隣り合う
上記各転動体同士の間に配置する複数本の柱部と、これ
ら各柱部の軸方向両端縁のうちの少なくとも一方の端縁
同士を互いに連結する環状の連結部とを備えた転がり軸
受用保持器に於いて、この転がり軸受用保持器の中心軸
に対する上記各柱部の中心軸の傾斜角度が、円周方向に
隣り合う各柱部同士で互いに異なる事を特徴とする転が
り軸受用保持器。A plurality of rolling elements which are adjacent to each other in a circumferential direction so that a plurality of rolling elements constituting a rolling bearing can be freely rotatably held in a state of being separated from each other in a circumferential direction. A rolling bearing retainer comprising: a plurality of pillar portions disposed between the plurality of pillar portions; and an annular connecting portion connecting at least one of the axial end edges of the pillar portions to each other. A rolling bearing cage, wherein the inclination angles of the central axes of the column portions with respect to the central axis of the rolling bearing retainer are different from each other in the circumferentially adjacent column portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000220384A JP2002039187A (en) | 2000-07-21 | 2000-07-21 | Cage for rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000220384A JP2002039187A (en) | 2000-07-21 | 2000-07-21 | Cage for rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002039187A true JP2002039187A (en) | 2002-02-06 |
Family
ID=18715000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000220384A Withdrawn JP2002039187A (en) | 2000-07-21 | 2000-07-21 | Cage for rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002039187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006234100A (en) * | 2005-02-25 | 2006-09-07 | Jtekt Corp | Double-row angular ball bearing and pinion shaft supporting device for vehicle |
| US7350978B2 (en) | 2004-03-15 | 2008-04-01 | Jtekt Corporation | Taper roller bearing |
| JP2019007514A (en) * | 2017-06-22 | 2019-01-17 | 三菱重工業株式会社 | Wave-shaped retainer and ball bearing |
-
2000
- 2000-07-21 JP JP2000220384A patent/JP2002039187A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7350978B2 (en) | 2004-03-15 | 2008-04-01 | Jtekt Corporation | Taper roller bearing |
| JP2006234100A (en) * | 2005-02-25 | 2006-09-07 | Jtekt Corp | Double-row angular ball bearing and pinion shaft supporting device for vehicle |
| JP2019007514A (en) * | 2017-06-22 | 2019-01-17 | 三菱重工業株式会社 | Wave-shaped retainer and ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Effective date: 20070626 Free format text: JAPANESE INTERMEDIATE CODE: A621 |
|
| A761 | Written withdrawal of application |
Effective date: 20090319 Free format text: JAPANESE INTERMEDIATE CODE: A761 |