JPH09100836A - Roller bearing - Google Patents
Roller bearingInfo
- Publication number
- JPH09100836A JPH09100836A JP25533995A JP25533995A JPH09100836A JP H09100836 A JPH09100836 A JP H09100836A JP 25533995 A JP25533995 A JP 25533995A JP 25533995 A JP25533995 A JP 25533995A JP H09100836 A JPH09100836 A JP H09100836A
- Authority
- JP
- Japan
- Prior art keywords
- rollers
- rod
- roller
- roller bearing
- rolling
- 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- Withdrawn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】本発明は、ころ軸受に係り、
特に外周に転動面を形成した内輪と、内周に転動面を形
成した外輪と、上記両転動面間に介在して転動する多数
のころとからなるころ軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller bearing,
In particular, the present invention relates to a roller bearing including an inner ring having a rolling surface formed on the outer periphery thereof, an outer ring having a rolling surface formed on the inner periphery thereof, and a large number of rollers rolling between the rolling surfaces.
【０００２】[0002]
【従来の技術】このようなころ軸受して、ころの直径に
対する長さの比が大きく（直径と長さとの比が３〜１０
倍）、直径が比較的大きい（５ｍｍ〜１５ｍｍ）ころで
ある棒状ころを使用した棒状ころ軸受があり、これは例
えば図３及び図４に示すものがある。2. Description of the Related Art In such a roller bearing, the ratio of the length to the diameter of the roller is large (the ratio of the diameter to the length is 3 to 10).
There is a rod-shaped roller bearing using a rod-shaped roller which is a roller having a relatively large diameter (5 mm to 15 mm), which is shown in FIGS. 3 and 4, for example.
【０００３】この棒状ころ軸受３０は内輪３１と外輪３
２との間に多数の同一直径の棒状ころ３３を配置してな
るものである。そして、内輪３１の外周及び外輪３２の
内周を、上記棒状ころ３３に接触する転動面３４，３５
として平滑かつ硬い面として形成してなるものである。The rod roller bearing 30 has an inner ring 31 and an outer ring 3.
A large number of rod-shaped rollers 33 having the same diameter are arranged between the two. Then, the outer circumference of the inner ring 31 and the inner circumference of the outer ring 32 make contact with the rod-shaped rollers 33 by rolling surfaces 34, 35.
As a smooth and hard surface.
【０００４】このような、従来の棒状ころ軸受３０にお
いては、上述した棒状ころ３３を転動方向に対して直角
に保って、棒状ころ３３の傾き（スキュー）を防止し、
棒状ころ３３を相互を平行に保ち、相隣合う棒状ころ３
３の接触を防止し、棒状ころ３３の間隔を保持するた
め、棒状ころ３３を保持器（ケージ）３６で保持するも
のとしている。In such a conventional rod roller bearing 30, the above-mentioned rod roller 33 is maintained at a right angle to the rolling direction to prevent the rod roller 33 from tilting (skew).
The rod-shaped rollers 33 are kept parallel to each other, and the rod-shaped rollers 3 adjacent to each other 3
In order to prevent the contact of the rollers 3 and to keep the distance between the rod rollers 33, the rod rollers 33 are held by a cage (cage) 36.
【０００５】この保持器３６は、図４に示すように、円
筒形状の鋼製の部材で、上記棒状ころ３３が嵌め込まれ
る長方形の孔部３７を平行かつ等間隔に複数開設すると
共に、各孔部３７と孔部３７との間に設けた案内部分３
８を折曲形成して、これらの案内部分３８の両端部に棒
状ころ３３との接触部３９を形成したものである。As shown in FIG. 4, the cage 36 is a cylindrical steel member, and has a plurality of rectangular hole portions 37 into which the rod-shaped rollers 33 are fitted and which are arranged in parallel and at equal intervals. Guide portion 3 provided between the portion 37 and the hole 37
8 is bent, and contact portions 39 with the bar-shaped rollers 33 are formed at both ends of these guide portions 38.
【０００６】このような棒状ころ軸受３０によれば、内
輪３１上を外輪３２が回転するにつれて、外輪３２と内
輪３１とに挟まれた棒状ころ３３は、両転動面３４，３
５間で転がって自転しつつ、保持器３６ともに内輪３１
の回りを公転する。According to such a rod-shaped roller bearing 30, as the outer ring 32 rotates on the inner ring 31, the rod-shaped roller 33 sandwiched between the outer ring 32 and the inner ring 31 has both rolling surfaces 34, 3.
While rolling between 5 and rotating, the cage 36 together with the inner ring 31
Orbit around.
【０００７】この棒状ころ軸受３０によれば、内輪３１
を軸として外輪３２を低い回転抵抗で、また、高い精度
を保って回転させることができる。According to this rod roller bearing 30, the inner ring 31
The outer ring 32 can be rotated about the shaft with low rotation resistance and high accuracy.
【０００８】[0008]
【発明が解決しようとする課題】ところで、近年このよ
うな棒状ころ軸受として、従来より高い荷重に耐えるこ
とができるものが求められている。このような棒状ころ
軸受において、高い荷重に耐えるものとするには、でき
るだけ多くの棒状ころを密に並べることが必要である。
また、高荷重に耐えるようにするための他の方法として
は、荷重を担う棒状ころ３３の寸法Ｌ（図３）を大きく
することが有効である。By the way, in recent years, as such a rod-shaped roller bearing, a bearing capable of withstanding a higher load than ever has been demanded. In such a rod roller bearing, in order to withstand a high load, it is necessary to arrange as many rod rollers as closely as possible.
Further, as another method for withstanding a high load, it is effective to increase the dimension L (FIG. 3) of the rod roller 33 that bears the load.
【０００９】しかし、上記のような従来の棒状ころ軸受
３０にあっては、棒状ころ３３の間には保持器３６を設
けているため、隣接する棒状ころ３３を一定寸法以下に
近接させることができず、棒状ころ３３を密に並べるこ
とには限界がある。However, in the conventional rod-shaped roller bearing 30 as described above, since the cage 36 is provided between the rod-shaped rollers 33, the adjacent rod-shaped rollers 33 can be brought close to each other within a certain size. This is not possible and there is a limit to how the rod rollers 33 can be arranged closely.
【００１０】また、一方、棒状ころの寸法Ｌを大きくす
ると、棒状ころの転動に伴う棒状ころを傾斜させようと
する力が大きくなるし、また、保持器３６の孔部３７の
長さ寸法を大きくすると、保持器３６の剛性を十分にと
ることができず、各棒状ころ３３の平行性を保つことが
できなくなったり、棒状ころ３３の傾き（スキュー）の
発生を防止できないという問題がある。これに対応して
保持器３６の剛性を確保するため、ポケット３７とポケ
ット３７との間の棒状ころ間隔保持部４０の幅寸法ｗ
（図４）を大きくすると、保持できる棒状ころ３３の数
が減少してしまい結局大きな荷重には耐えられないこと
となる。On the other hand, when the dimension L of the rod-shaped roller is increased, the force for inclining the rod-shaped roller due to the rolling of the rod-shaped roller is increased, and the length dimension of the hole portion 37 of the cage 36 is increased. If the value is increased, the cage 36 cannot be sufficiently rigid, the parallelism of the rod rollers 33 cannot be maintained, and the inclination (skew) of the rod rollers 33 cannot be prevented. . Correspondingly, in order to secure the rigidity of the cage 36, the width dimension w of the rod-shaped roller gap holding portion 40 between the pocket 37 and the pocket 37.
If (Fig. 4) is increased, the number of rod-shaped rollers 33 that can be held is reduced, and eventually a large load cannot be withstood.
【００１１】さらに、棒状ころ軸受は、挿入される軸４
０の軸径に対して、外輪３２の大きさを小さくすること
ができるが、棒状ころ３３の長さＬを長くし、棒状ころ
軸受の軸方向の長さを長くすると、棒状ころ軸受に偏荷
重が付加したとき、両端における回転の差が発生しころ
によじれが発生することとなる。Further, the rod roller bearing has a shaft 4 to be inserted.
Although the size of the outer ring 32 can be reduced with respect to the shaft diameter of 0, if the length L of the rod roller 33 is increased and the axial length of the rod roller bearing is increased, the rod roller bearing is biased to the rod roller bearing. When a load is applied, a difference in rotation occurs at both ends, and the rollers are twisted.
【００１２】そこで、本発明は、第１にころのスキュー
の防止を図り、第２に隣接するころ間の間隔をできるだ
け少なく配置して、ころを密に配置することができると
ともに、ころの寸法を大きくして、高荷重で使用しても
円滑な作動をするころ軸受を提供することを目的とす
る。Therefore, according to the present invention, firstly, the rollers are prevented from being skewed, and the distance between the rollers adjacent to the second roller is arranged as small as possible so that the rollers can be densely arranged and the dimension of the rollers can be reduced. It is an object of the present invention to provide a roller bearing which can be operated smoothly even if it is used under a high load by increasing the diameter.
【００１３】[0013]
【課題を解決するための手段】上記課題を解決するため
の本発明の手段は、図１に示すように、外周面に転動面
４を形成した内輪１と、内周面に転動面５を形成した外
輪２と、上記両転動面４，５間に介在して転動する多数
のころ３とからなるころ軸受６において、前記多数のこ
ろ３の両端部に、上記ころと同一のピッチ円を有するピ
ニオン７をころ３と同軸で回転するよう設け、前記内輪
１の転動面４の両外端部に歯車部８を配置し、上記ピニ
オン７を前記歯車部８に噛合させ、各ころ３を両転動面
４，５間に平行にかつ所定の間隔をもって並列させたこ
ろ軸受である。The means of the present invention for solving the above-mentioned problems are, as shown in FIG. 1, an inner ring 1 having a rolling surface 4 formed on the outer peripheral surface thereof and a rolling surface formed on the inner peripheral surface thereof. In a roller bearing 6 composed of an outer ring 2 which forms 5 and a large number of rollers 3 which roll while interposing between the rolling surfaces 4 and 5, both ends of the large number of rollers 3 are the same as the above rollers. Is provided so as to rotate coaxially with the rollers 3, gear parts 8 are arranged at both outer ends of the rolling surface 4 of the inner ring 1, and the pinion 7 is meshed with the gear part 8. A roller bearing in which each roller 3 is arranged in parallel between both rolling surfaces 4 and 5 at a predetermined interval.
【００１４】また、本発明にかかるころ軸受では、外周
面に転動面４を形成した内輪１と、内周面に転動面５を
形成した外輪２と、上記両転動面４，５間に介在して転
動する多数のころ３とからなるころ軸受６において、前
記多数のころ３の両端部に、上記ころと同一のピッチ円
を有するピニオン７をころ３と同軸で回転するよう設
け、前記外輪２の転動面５の両外端部に歯車部９を配置
し、上記ピニオン７を前記歯車部に噛合させ、各ころ３
を両転動面４，５間に平行にかつ所定の間隔をもって並
列させたころ軸受である。Further, in the roller bearing according to the present invention, the inner ring 1 having the rolling surface 4 formed on the outer peripheral surface thereof, the outer ring 2 having the rolling surface 5 formed on the inner peripheral surface thereof, and the both rolling surfaces 4, 5 described above. In a roller bearing 6 consisting of a large number of rollers 3 intervening and rolling, a pinion 7 having the same pitch circle as the rollers is coaxially rotated with the rollers 3 at both ends of the plurality of rollers 3. Gear wheels 9 are provided at both outer ends of the rolling surface 5 of the outer ring 2, and the pinion 7 is meshed with the gear wheel to form each roller 3
Is a roller bearing in which both rolling surfaces 4 and 5 are arranged in parallel at a predetermined interval.
【００１５】本発明に係るころ軸受によれば、内輪１の
外輪２に対する回転は、ころ３が転動面４，５間で自転
しつつ公転するから、円滑なものとなる。このとき、こ
ろ３の両端部に設けられたピニオン７は、ころ３と一緒
に回転しつつ歯車部８、または、歯車部９に噛合するの
で、ころ３の両端において転動距離は一致しころ３に傾
き方向のモーメントが作用することはないので、ころ３
に傾き（スキュー）は発生しない。According to the roller bearing of the present invention, the rotation of the inner ring 1 with respect to the outer ring 2 is smooth because the roller 3 revolves between the rolling surfaces 4 and 5 while revolving. At this time, the pinions 7 provided at both ends of the roller 3 mesh with the gear part 8 or the gear part 9 while rotating together with the roller 3, so that the rolling distances at both ends of the roller 3 are the same. Since the moment in the tilt direction does not act on 3,
There is no inclination (skew).
【００１６】そして、全てのころ３は、上記外輪２の回
転に相当する回転数だけ等しく回転するので、全てのこ
ろ３の間隔は変化せず、隣接するころ３どうしの間隔が
僅少であっても、ころ３どうしが接触したり、衝突した
りすることなく平行にかつ所定の間隔を保って移動し、
ころ３が傾いたり、ころ３の間隔が変動することはな
い。このため、保持器を廃止でき、隣接するころどうし
の間隔を可及的に少ないものとでき、ころを長尺のもの
とすることができる。Since all the rollers 3 rotate equally by the number of rotations corresponding to the rotation of the outer ring 2, the distance between all the rollers 3 does not change, and the distance between the adjacent rollers 3 is small. Also, the rollers 3 move in parallel and at a predetermined interval without contact or collision.
The rollers 3 do not tilt and the distance between the rollers 3 does not change. Therefore, the cage can be eliminated, the distance between the adjacent rollers can be made as small as possible, and the rollers can be made long.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の形態にかか
るころ軸受の構成を詳細に説明する。図１（１），
（２）、図２（１），（２）は本発明にかかる棒状ころ
軸受の第１の実施の形態の構成を示すものである。本実
施の形態は上記請求項１、及び２の記載に相当するもの
である。BEST MODE FOR CARRYING OUT THE INVENTION The structure of a roller bearing according to an embodiment of the present invention will be described in detail below. Figure 1 (1),
(2), FIGS. 2 (1) and 2 (2) show the configuration of the rod roller bearing according to the first embodiment of the present invention. The present embodiment corresponds to the above-mentioned claims 1 and 2.
【００１８】本実施の形態において、ころ軸受である棒
状ころ軸受６は、円筒形状の内輪１と、この内輪１の外
側に被せられる外輪２と、前記内輪１及び前記外輪２の
間に介在させた多数の棒状ころ３とからなる。In this embodiment, a rod-shaped roller bearing 6, which is a roller bearing, has a cylindrical inner ring 1, an outer ring 2 covering the inner ring 1 and an inner ring 1 and an outer ring 2. And a large number of rod rollers 3.
【００１９】そして、前記内輪１の外周面の棒状ころ３
との接触個所である外周面を平滑かつ高硬度の転動面４
として形成し、また、前記外輪２の内周面の棒状ころ３
との接触個所である内周面を同様に平滑かつ高硬度の転
動面５として形成している。The rod-like rollers 3 on the outer peripheral surface of the inner ring 1
The outer peripheral surface, which is the point of contact with, is a smooth and hard rolling surface 4
And the rod-shaped rollers 3 on the inner peripheral surface of the outer ring 2.
Similarly, the inner peripheral surface, which is the point of contact with, is formed as a smooth and highly hard rolling surface 5.
【００２０】そして、本実施の形態では、前記多数の棒
状ころ３の両端部には、図１（１）、図２（１）（２）
に示すように、棒状ころ３と同軸に、棒状ころ３の直径
と等しいピッチ円の直径を有する平歯車であるピニオン
７を固着形成するものとしている。このピニオン７は、
図２（２）に示すように、棒状ころ３の両端に形成した
軸部３ａに圧入して取り付けている。この例では、軸部
３ａの外周面をローレット加工し、また、ピニオン７の
穴部の内周面をブローチ加工することにより、それぞれ
の面にセレーション部１１を設け圧入するものとしてい
る。In the present embodiment, both end portions of the large number of rod-shaped rollers 3 are provided at the positions shown in FIGS. 1 (1) and 2 (1) (2).
As shown in FIG. 3, a pinion 7 which is a spur gear having a diameter of a pitch circle equal to the diameter of the rod roller 3 is fixedly formed coaxially with the rod roller 3. This pinion 7
As shown in FIG. 2 (2), the rod-shaped rollers 3 are press-fitted and attached to the shaft portions 3a formed at both ends thereof. In this example, the outer peripheral surface of the shaft portion 3a is knurled, and the inner peripheral surface of the hole portion of the pinion 7 is broached, so that the serration portions 11 are provided on the respective surfaces and press-fitted.
【００２１】また、前記内輪１には、転動面４の両側の
両外端円周に沿って上記棒状ころ３の両端に固着したピ
ニオン７と同一モジュールで、両ピニオン７がそれぞれ
噛合する２つの金属製の外歯歯車部８，８を設けてい
る。本実施の形態では、この外歯歯車部８は、内輪１に
上記転動面４の半径より小径の取付周面部１ａを形成
し、この取付周面部１ａに外向きの歯を形成した部材を
圧入等の手段により接合することにより形成する。Further, the inner ring 1 has the same module as the pinions 7 fixed to both ends of the rod-shaped roller 3 along both outer circumferences on both sides of the rolling surface 4, and both pinions 7 mesh with each other 2 Two metal external gears 8, 8 are provided. In the present embodiment, the external gear portion 8 is a member in which the inner peripheral surface 1 has a mounting peripheral surface portion 1a having a diameter smaller than the radius of the rolling surface 4, and the mounting peripheral surface portion 1a has outwardly formed teeth. It is formed by joining by means such as press fitting.
【００２２】さらに、本実施の形態では、上記外輪の転
動面５の両側の両外端円周に沿って両ピニオン７がそれ
ぞれ噛合する２つの金属製の内歯歯車部９，９を設けて
いる。本実施の形態では、この内歯歯車部９は、外輪２
に上記転動面５の半径より小径の取付周面部２ａを形成
し、この取付周面部２ａに内向きの歯を形成した部材を
圧入等の手段により接合することにより形成する。Further, in the present embodiment, two metallic internal gear parts 9, 9 are provided along which both pinions 7 mesh with each other along both outer circumferences on both sides of the rolling surface 5 of the outer ring. ing. In the present embodiment, the internal gear portion 9 is the outer ring 2
Is formed by forming a mounting peripheral surface portion 2a having a diameter smaller than the radius of the rolling surface 5 and joining members having inward teeth to the mounting peripheral surface portion 2a by means of press fitting or the like.
【００２３】そして、本実施の形態に係る棒状ころ軸受
を組み立てるには、ピニオン７を取り付けていない所定
数の棒状ころ３を上記転動面４と転動面５の間に挟むよ
うに内輪１と外輪と棒状ころ３とを組付け、各棒状ころ
３の間隔を適宜調整したのち、ピニオン７を上記外歯歯
車部８及び内歯歯車９に噛合させつつ全ての棒状ころ３
の両端に設けた軸部３ａに圧入すればよい。In order to assemble the rod roller bearing according to the present embodiment, the inner ring 1 is sandwiched between the rolling surface 4 and the rolling surface 5 by inserting a predetermined number of rod rollers 3 without the pinion 7 attached. After assembling the outer ring and the bar-shaped rollers 3 and adjusting the intervals between the bar-shaped rollers 3 appropriately, all the bar-shaped rollers 3 are engaged while the pinion 7 is meshed with the external gear 8 and the internal gear 9.
It may be press-fitted into the shaft portions 3a provided at both ends of the.
【００２４】したがって、本実施の形態にかかる棒状こ
ろ軸受によれば、内輪１の外輪２に対する回転は、ころ
３が転動面４，５間で自転しつつ公転するから、円滑な
ものとなる。Therefore, according to the rod-shaped roller bearing of the present embodiment, the rotation of the inner ring 1 with respect to the outer ring 2 is smooth because the roller 3 revolves between the rolling surfaces 4 and 5 while revolving. .
【００２５】このとき、内輪１の回転により棒状ころ３
両端部に設けられたピニオン７は、ころ３と一緒に回転
しつつ歯車部８，９に噛合するので、ころ３の両端にお
いて転動距離は一致し、ころ３に傾き方向のモーメント
が作用することはないので、ころ３にスキューは発生し
ない。そして、全ての棒状ころ３は、それぞれ同一距離
公転するので、棒状ころ３の間隔が変動することはな
い。At this time, the rod-shaped rollers 3 are rotated by the rotation of the inner ring 1.
Since the pinions 7 provided at both ends mesh with the gear parts 8 and 9 while rotating together with the roller 3, the rolling distances at both ends of the roller 3 are the same, and a moment in the tilt direction acts on the roller 3. Since there is no such thing, the skew does not occur in the roller 3. Since all the rod-shaped rollers 3 revolve at the same distance, the distance between the rod-shaped rollers 3 does not change.
【００２６】このように、本実施の形態によれば、棒状
ころの寸法Ｌを大きいものとしても棒状ころの平行性を
保ち棒状ころの傾き（スキュー）の発生を防止すること
ができ、また、棒状ころの間隔を小さくしても棒状ころ
どうしが接触するのを防止することができるので、隣接
する棒状ころどうしの間隔を可及的に少ないものとし、
棒状ころの配設密度を大きなものとでき、棒状ころ軸受
を高荷重で使用することができ、円滑な作動をするもの
とすることができる。As described above, according to the present embodiment, even if the dimension L of the rod-shaped roller is large, the parallelism of the rod-shaped roller can be maintained and the inclination (skew) of the rod-shaped roller can be prevented from occurring. Even if the distance between the rod rollers is reduced, it is possible to prevent the rod rollers from contacting each other, so the distance between the adjacent rod rollers should be as small as possible.
The arrangement density of the bar-shaped rollers can be increased, the bar-shaped roller bearing can be used with a high load, and the smooth operation can be achieved.
【００２７】さらに、本実施の形態によれば、棒状ころ
３の直径とピニオン７のピッチ円の直径とを同一として
いるので、ピニオン７の外歯歯車部８及び内歯歯車９上
での転動量と、棒状ころ３の転動面での転動量とは同一
となり、棒状ころ３は各転動面を滑ることなく転がり棒
状ころ軸受は円滑に作動する。Further, according to the present embodiment, since the diameter of the rod roller 3 and the diameter of the pitch circle of the pinion 7 are the same, the rolling of the pinion 7 on the external gear 8 and the internal gear 9 is performed. The amount of motion and the amount of rolling on the rolling surface of the rod roller 3 are the same, and the rolling rod roller bearing operates smoothly without the rod roller 3 sliding on each rolling face.
【００２８】なお、上記各実施の形態では、内輪１に外
歯歯車部８を設けて、かつ外輪２に内歯歯車部９を設け
るようにして、ピニオンを両方の歯車部に同時に噛合さ
せるようにしたが、内輪１に外歯歯車部８を設けて、ピ
ニオン７をこの外歯歯車部８のみに噛合させるようにし
ても、外輪転動面５に内歯歯車部９のみを設けるように
して、ピニオンを噛合させるようにしてもよい。In each of the above embodiments, the inner ring 1 is provided with the external gear section 8 and the outer ring 2 is provided with the internal gear section 9 so that the pinion is meshed with both gear sections at the same time. However, even if the external gear portion 8 is provided on the inner ring 1 and the pinion 7 is meshed only with this external gear portion 8, only the internal gear portion 9 is provided on the outer ring rolling surface 5. Then, the pinion may be engaged.
【００２９】また、上記実施の形態では、外歯歯車部及
びピニオンは平歯車として説明したが、外歯歯車部とピ
ニオンは、はすば歯車、やまば歯車として形成してもよ
く、これらの歯形を採用することにより、外歯歯車部と
ピニオンの噛合回転時の騒音の低下、噛み合い率の向上
を図ることができる。なお、はすば歯車を使用するとき
には、棒状ころの両端のはすば歯車の傾斜方向を逆とす
れば、はすば歯車による棒状ころ軸方向の推力が相殺さ
れる。Further, in the above embodiment, the external gear portion and the pinion are described as spur gears, but the external gear portion and the pinion may be formed as helical gears or helical gears. By adopting the tooth profile, it is possible to reduce noise at the time of meshing rotation of the external gear and the pinion and improve the meshing ratio. When the helical gear is used, the thrust force of the helical gear in the axial direction of the rod roller is canceled by reversing the inclination direction of the helical gear at both ends of the rod roller.
【００３０】さらに、上記例ではころとして棒状ころを
使用した棒状ころ軸受を例として説明したが、本発明は
針状ころ（ころの直径が５ｍｍ以下、長さ／直径が３以
上１０以下）を使用した針状ころ軸受、若しくは円筒こ
ろ（長さ／直径が３以下）を使用した円筒ころ軸受にも
同様に適用することができる。Further, in the above-mentioned example, the rod-shaped roller bearing using the rod-shaped roller as the roller has been described as an example. However, in the present invention, needle rollers (roller diameter 5 mm or less, length / diameter 3 or more and 10 or less) are used. It can be similarly applied to the needle roller bearing used or a cylindrical roller bearing using a cylindrical roller (length / diameter is 3 or less).
【００３１】[0031]
【発明の効果】以上説明したように、本発明のころ軸受
によれば、ころの両端部にころと同軸で回転するピニオ
ンを固着形成するとともに、内輪、外輪に転動面を挟ん
で歯車部を配置し、ピニオンを歯車部に噛合させ、各こ
ろを平行にかつ所定の間隔をもって並列させたから、こ
ろ軸受の作動時において、ピニオンは歯車部に噛合して
転動するので、ころと転動面との間に滑りが発生するこ
となく、各ころは平行にかつ所定の間隔をもって移動
し、ころのスキューを防止し、ころの間隔の変動を防止
する。したがって、ころ軸受のころを長尺で配設密度の
大きなものとでき、ころ軸受を高荷重下で円滑な作動を
するものとして使用でき、ころ軸受を従来使用されてい
なかった分野において使用することが可能となる。As described above, according to the roller bearing of the present invention, the pinion that rotates coaxially with the roller is fixedly formed at both ends of the roller, and the gear portion is sandwiched between the inner ring and the outer ring with the rolling surface interposed therebetween. The pinion meshes with the gear part, and the rollers are arranged in parallel with each other at a predetermined interval.When the roller bearing operates, the pinion meshes with the gear part and rolls. The rollers move in parallel and at a predetermined interval without slippage between the surfaces to prevent skew of the rollers and fluctuation of the roller interval. Therefore, the rollers of the roller bearing can be made long and have a large arrangement density, and the roller bearing can be used as one that smoothly operates under a high load, and the roller bearing can be used in a field where it has not been used before. Is possible.
【図１】本発明にかかるころ軸受である棒状ころ軸受の
実施の形態を示す図であり、（１）は正面図、（２）は
平面図である。FIG. 1 is a view showing an embodiment of a rod-shaped roller bearing which is a roller bearing according to the present invention, (1) is a front view and (2) is a plan view.
【図２】図１に示した棒状ころ軸受の棒状ころの端部と
ピニオンの状態を示す拡大図であり、（１）は正面図、
（２）は側面図である。2 is an enlarged view showing a state of a pinion and an end portion of the rod roller of the rod roller bearing shown in FIG. 1, (1) is a front view,
(2) is a side view.
【図３】従来の棒状ころ軸受を示す断面図である。FIG. 3 is a cross-sectional view showing a conventional rod roller bearing.
【図４】図４に示した棒状ころ軸受の保持器を示す斜視
図である。4 is a perspective view showing a cage of the rod-shaped roller bearing shown in FIG.
１ 内輪 ２ 外輪 ３ 棒状ころ（ころ） ４ 転動面 ５ 転動面 ６ 棒状ころ軸受（ころ軸受） ７ ピニオン ８ 外歯歯車部 ９ 内歯歯車部 1 Inner ring 2 Outer ring 3 Rod roller (roller) 4 Rolling surface 5 Rolling surface 6 Rod roller bearing (roller bearing) 7 Pinion 8 External gear section 9 Internal gear section
Claims (2)
面に転動面を形成した外輪と、上記両転動面間に介在し
て転動する多数のころとからなるころ軸受において、 前記多数のころの両端部に、上記ころと同一のピッチ円
を有するピニオンをころと同軸で回転するよう設け、 前記内輪の転動面の両外端部に歯車部を配置し、 上記ピニオンを前記歯車部に噛合させ、各ころを両転動
面間に平行にかつ所定の間隔をもって並列させたころ軸
受。1. A roller comprising an inner ring having a rolling surface formed on an outer peripheral surface thereof, an outer ring having a rolling surface formed on an inner peripheral surface thereof, and a large number of rollers interposed between the rolling surfaces. In the bearing, at both ends of the many rollers, a pinion having the same pitch circle as the rollers is provided so as to rotate coaxially with the rollers, and gear parts are arranged at both outer ends of the rolling surface of the inner ring, A roller bearing in which the pinion is meshed with the gear portion, and the rollers are arranged in parallel between both rolling surfaces at a predetermined interval.
面に転動面を形成した外輪と、上記両転動面間に介在し
て転動する多数のころとからなるころ軸受において、 前記多数のころの両端部に、上記ころと同一のピッチ円
を有するピニオンをころと同軸で回転するよう設け、 前記外輪の転動面の両外端部に歯車部を配置し、 上記ピニオンを前記歯車部に噛合させ、各ころを両転動
面間に平行にかつ所定の間隔をもって並列させたころ軸
受。2. A roller comprising an inner ring having a rolling surface formed on an outer peripheral surface thereof, an outer ring having a rolling surface formed on an inner peripheral surface thereof, and a large number of rollers rolling between the two rolling surfaces. In the bearing, at both ends of the plurality of rollers, a pinion having the same pitch circle as the rollers is provided so as to rotate coaxially with the rollers, and gear parts are arranged at both outer ends of the rolling surface of the outer ring, A roller bearing in which the pinion is meshed with the gear portion, and the rollers are arranged in parallel between both rolling surfaces at a predetermined interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25533995A JPH09100836A (en) | 1995-10-02 | 1995-10-02 | Roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25533995A JPH09100836A (en) | 1995-10-02 | 1995-10-02 | Roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09100836A true JPH09100836A (en) | 1997-04-15 |
Family
ID=17277420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25533995A Withdrawn JPH09100836A (en) | 1995-10-02 | 1995-10-02 | Roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09100836A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310151A (en) * | 2001-04-11 | 2002-10-23 | Thk Co Ltd | Rolling guide device and roller coupling body |
| WO2011139182A1 (en) * | 2010-05-04 | 2011-11-10 | Zakharov Evgeny Nikolaevich | Cageless rolling bearing (variant embodiments) and method for the assembly thereof (variant embodiments) |
| WO2011139184A1 (en) * | 2010-05-04 | 2011-11-10 | Zakharov Evgeny Nikolaevich | Method for manufacturing a rolling element, and rolling element |
| WO2011139183A1 (en) * | 2010-05-04 | 2011-11-10 | Zakharov Evgeny Nikolaevich | Rolling element and method for manufacturing same |
| JP2013174285A (en) * | 2012-02-24 | 2013-09-05 | Jtekt Corp | Rolling bearing |
-
1995
- 1995-10-02 JP JP25533995A patent/JPH09100836A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310151A (en) * | 2001-04-11 | 2002-10-23 | Thk Co Ltd | Rolling guide device and roller coupling body |
| WO2011139182A1 (en) * | 2010-05-04 | 2011-11-10 | Zakharov Evgeny Nikolaevich | Cageless rolling bearing (variant embodiments) and method for the assembly thereof (variant embodiments) |
| WO2011139184A1 (en) * | 2010-05-04 | 2011-11-10 | Zakharov Evgeny Nikolaevich | Method for manufacturing a rolling element, and rolling element |
| WO2011139183A1 (en) * | 2010-05-04 | 2011-11-10 | Zakharov Evgeny Nikolaevich | Rolling element and method for manufacturing same |
| JP2013174285A (en) * | 2012-02-24 | 2013-09-05 | Jtekt Corp | Rolling bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20021203 |