JP2008240763A - Retainer for cylindrical roller bearing - Google Patents

Retainer for cylindrical roller bearing Download PDF

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Publication number
JP2008240763A
JP2008240763A JP2007078140A JP2007078140A JP2008240763A JP 2008240763 A JP2008240763 A JP 2008240763A JP 2007078140 A JP2007078140 A JP 2007078140A JP 2007078140 A JP2007078140 A JP 2007078140A JP 2008240763 A JP2008240763 A JP 2008240763A
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Prior art keywords
insertion hole
column
cylindrical roller
roller bearing
side plates
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JP2007078140A
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Japanese (ja)
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Takahisa Adachi
貴弥 安達
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NTN Corp
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NTN Corp
NTN Toyo Bearing Co Ltd
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Priority to JP2007078140A priority Critical patent/JP2008240763A/en
Publication of JP2008240763A publication Critical patent/JP2008240763A/en
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    • 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
    • F16C33/4664—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages with more than three parts, e.g. two end rings connected by individual stays

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a retainer for a cylindrical roller bearing eliminating inclination and twisting of respective pillar parts. <P>SOLUTION: In the retainer for the cylindrical roller bearing having a pocket 10 for retaining a plurality of cylindrical rollers 5 between an inner ring 1 and an outer ring 2, it comprises a pair of annular side plates 7, 9 and a plurality of pillar parts 8 for connecting these side plates 7, 9, axial projections 11 are provided on both ends of the respective pillar parts 8, and a plurality of insertion holes 12 fitted with the projections 11 of the respective pillar parts 8 are formed in a circumferential direction of the respective side plates 7, 9 at a constant pitch. The respective projections 11 have taper parts 15 approaching toward the pillar part and engaged with a peripheral edge of the insertion hole 12 on both side surfaces in a radial direction. When the projection 11 is fitted to the insertion hole 12 by fastening fitting, since the peripheral edge of the insertion hole 12 is engaged with the taper part 15, the pillar part 8 is positioned relative to the side plates 7, 9. Thereby, when the projection 11 of the pillar part 8 is calked, the pillar part 8 can be prevented from being inclined and twisted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

ホイールローダ（油圧ポンプなど）などの建設機械等、各種機械装置の回転支持部に組み込まれる円筒ころ軸受に用いる保持器に関するものである。 The present invention relates to a cage used for a cylindrical roller bearing incorporated in a rotation support portion of various mechanical devices such as a construction machine such as a wheel loader (hydraulic pump or the like).

各種機械装置の回転支持部を支持する円筒ころ軸受は、内輪と外輪との相互間に所定間隔おきに複数の円筒ころを保持する保持器を備えている。この保持器としては、もみぬきにより形成されたくし型保持器が多く使用されており、環状部に軸方向の同じ向きに突出した複数の柱部を周方向に設け、この各柱部の先端部に設けた突起を、環状の側板に設けた挿入孔に挿入して、突起の先端部を加締めることにより各柱部と側板とを結合するものが知られている（例えば、特許文献１参照）。   Cylindrical roller bearings that support rotation support portions of various mechanical devices include cages that hold a plurality of cylindrical rollers at predetermined intervals between an inner ring and an outer ring. As this cage, a comb type cage formed by rice bran is often used, and a plurality of column portions projecting in the same direction in the axial direction are provided in the circumferential direction on the annular portion, and the tip portions of the respective column portions are provided. There is known a method in which a projection provided on the side plate is inserted into an insertion hole provided on an annular side plate and each column portion and the side plate are coupled by caulking the tip of the projection (see, for example, Patent Document 1). ).

このくし型保持器は、環状体から突出する各柱部の先端部を側板で支持しているので、円筒ころ軸受の高速運転時、回転の遠心力による柱部の先端部の外径方向への弾性変形が抑制される。柱部の弾性変形が抑制されることにより、柱部の周方向側面と円筒ころの転動面との過大な接触が防止されるとともに、保持器自体の強度が確保される。
特開２００６−９０４５９号公報 In this comb cage, the tip of each column protruding from the annular body is supported by the side plate. Therefore, when the cylindrical roller bearing is operated at high speed, the tip of the column is moved in the outer diameter direction by the centrifugal force of rotation. The elastic deformation of is suppressed. By suppressing the elastic deformation of the column portion, excessive contact between the circumferential side surface of the column portion and the rolling surface of the cylindrical roller is prevented, and the strength of the cage itself is ensured.
JP 2006-90459 A

しかし、上記のくし型保持器は、柱部の突起と側板の挿入孔との嵌め合いがルーズで、挿入孔と突起との間にすき間があり、各柱部の突起を側板に加締めた際、柱部や側板が径方向に動いてしまう。柱部が動くと、柱保持器を組み立てたときに、柱部が側板に対して傾いたり、ねじれたりした状態で結合される。このため、円筒ころのピッチ円（ＰＣＤ）にひずみが発生して、ポケット内での円筒ころの円滑な転動が阻害される。   However, the above comb-shaped cage has a loose fit between the projection of the column and the insertion hole of the side plate, and there is a gap between the insertion hole and the projection, and the projection of each column is crimped to the side plate. At this time, the column part and the side plate move in the radial direction. When the column part moves, when the column holder is assembled, the column part is joined in a state of being tilted or twisted with respect to the side plate. For this reason, distortion occurs in the pitch circle (PCD) of the cylindrical roller, and the smooth rolling of the cylindrical roller in the pocket is hindered.

また、治具を用いて柱部を環状部の軸方向に対して定ピッチに配列させた状態で、側板と柱部を加締めるようにしても、柱部の突起と側板の挿入孔と間にすき間があるため、この場合も、柱部が径方向に動くおそれがあった。   Also, even if the side plate and the column portion are crimped in a state where the column portion is arranged at a constant pitch with respect to the axial direction of the annular portion using a jig, the gap between the projection of the column portion and the insertion hole of the side plate In this case as well, there is a possibility that the column portion moves in the radial direction because there is a gap in the gap.

そこで、この発明は、各柱部の傾きやねじれをなくすことを課題とする。   Then, this invention makes it a subject to eliminate the inclination and twist of each pillar part.

上記の課題を解決するために、この発明は、環状の一対の側板と、これらの側板間を連結する複数の柱部とからなり、前記各柱部の両端部に軸方向の突起を設け、前記各側板の周方向に前記各柱部の突起を嵌める複数の挿入孔を定ピッチで形成し、前記突起を前記挿入孔に嵌め合わせた状態で、前記突起と前記挿入孔との嵌め合わせが締まり嵌めとなる構成を採用したのである。   In order to solve the above problems, the present invention comprises a pair of annular side plates and a plurality of pillars connecting the side plates, and axial projections are provided at both ends of each pillar, In the circumferential direction of each side plate, a plurality of insertion holes for fitting the projections of the column portions are formed at a constant pitch, and the projections and the insertion holes are fitted together in a state where the projections are fitted to the insertion holes. A configuration with an interference fit was adopted.

この構成によると、柱部を側板に嵌め合わせたとき、各柱部は所要の締め代をもって側板に嵌め合わされるので、柱部が側板に対して位置決めされ、柱部の突起を加締めた際、柱部が傾いたり、ねじれたりすることを防止することができる。   According to this configuration, when the column part is fitted to the side plate, each column part is fitted to the side plate with a required tightening margin, so when the column part is positioned with respect to the side plate and the protrusion of the column part is crimped It is possible to prevent the column portion from being tilted or twisted.

上記各柱部の突起は、径方向の両側面に先端部に向かうに従って広がるテーパ部を有し、前記突起を上記挿入孔に嵌め合わせた状態で、上記各側板の一端面の前記挿入孔周縁部が前記テーパ部に係合するものを採用することができる。   The projections of the column portions have tapered portions that expand toward both ends in the radial direction toward the tip, and the insertion hole peripheral edge of the one end surface of each side plate in a state where the projections are fitted into the insertion holes. A portion that engages with the tapered portion may be employed.

テーパ部を有する突起を挿入孔に嵌め合わせると、挿入孔の周縁部にテーパ部から挿入孔を押し広げる力を受け、この押し広げ力の軸方向の分力の作用により側板が柱部に押し付けられる。この押し付けにより、各側板の軸方向の位置ずれを防止することができる。   When a projection having a tapered portion is fitted into the insertion hole, the side plate is pressed against the column portion by the action of an axial component of the spreading force on the peripheral edge of the insertion hole. It is done. By this pressing, the axial displacement of each side plate can be prevented.

また、上記各側板の他端面の上記挿入孔周縁部に嵌合凹部を形成し、上記柱部の突起の周囲に軸方向に突出する補強段部を設け、前記嵌合凹部に前記補強段部が嵌り合うようにすると、軸受運転時の円筒ころの転動により柱部の突起と側板の挿入孔内周面との間に作用するせん断応力に対する強度を向上することができる。   In addition, a fitting recess is formed in the peripheral edge portion of the insertion hole on the other end surface of each side plate, a reinforcing step portion protruding in the axial direction is provided around the protrusion of the column portion, and the reinforcing step portion is provided in the fitting recess portion. If they are fitted, the strength against shear stress acting between the projection of the column portion and the inner peripheral surface of the insertion hole of the side plate can be improved by rolling of the cylindrical roller during the bearing operation.

上記嵌合凹部に補強段部が嵌まり合うときに、上記嵌合凹部と上記補強段部との径方向のすき間が、上記挿入孔の内側面と上記突起の柱部側の側面との径方向のすき間よりも小さいものであれば、挿入孔と突起との径方向の位置がずれた場合、嵌合凹部の径方向の内面に補強段部が突き当たり、その位置ずれを抑えることができる。   When the reinforcing stepped portion fits into the fitting concave portion, the radial gap between the fitting concave portion and the reinforcing stepped portion is the diameter of the inner side surface of the insertion hole and the side surface on the column portion side of the protrusion. If it is smaller than the gap in the direction, when the radial position between the insertion hole and the protrusion is displaced, the reinforcing stepped portion abuts against the radially inner surface of the fitting recess, and the displacement can be suppressed.

さらに、上記嵌合凹部と上記補強段部との間に軸方向のすき間を設けると、側板と柱部とが接触した状態となるので、前述した突起のテーパ部による側板の軸方向への押し付けが、補強段部ではなく柱部に対して作用し、各側板が柱部に確実に押し付けられる。   Further, if an axial gap is provided between the fitting recess and the reinforcing stepped portion, the side plate and the column portion are in contact with each other, so that the side plate is pressed in the axial direction by the tapered portion of the protrusion described above. However, it acts on the column part instead of the reinforcing step part, and each side plate is reliably pressed against the column part.

以上のように、この発明は、柱部に設けた突起を一対の側板の挿入孔に締まり嵌めにより嵌め合わせるようにしたので、柱部の傾きやねじれをなくすことができる。   As described above, according to the present invention, since the protrusions provided on the pillar portions are fitted into the insertion holes of the pair of side plates by interference fitting, the inclination and twist of the pillar portions can be eliminated.

以下、この発明の実施形態を図１〜図５に示す。この実施形態の円筒ころ軸受は、図１（ａ）、（ｂ）に示すように、外径面に軌道面３を有する内輪１と、内径面に軌道面４を有する外輪２と、この内輪１と外輪２とのそれぞれの軌道面３、４の相互間に周方向に転動可能に組み込まれる複数の円筒ころ５と、円筒ころ５を周方向に所定間隔をおいて保持する保持器６とから構成される。なお、上記円筒ころ軸受は、図示するように単列円筒ころ軸受に限定されるものでなく、複列円筒ころ軸受や多列円筒ころ軸受であってもよい。   Embodiments of the present invention are shown in FIGS. As shown in FIGS. 1A and 1B, the cylindrical roller bearing of this embodiment includes an inner ring 1 having a raceway surface 3 on an outer diameter surface, an outer ring 2 having a raceway surface 4 on an inner diameter surface, and the inner ring. A plurality of cylindrical rollers 5 incorporated so as to be able to roll in the circumferential direction between the respective raceway surfaces 3 and 4 of the outer ring 2 and a retainer 6 that holds the cylindrical rollers 5 at predetermined intervals in the circumferential direction. It consists of. The cylindrical roller bearing is not limited to a single row cylindrical roller bearing as shown in the figure, and may be a double row cylindrical roller bearing or a multi-row cylindrical roller bearing.

上記保持器６は、図２に示すように、環状の一対の側板７、９と、これらの側板７、９間を連結する複数の柱部８とから構成される。   As shown in FIG. 2, the retainer 6 includes a pair of annular side plates 7 and 9 and a plurality of column portions 8 that connect the side plates 7 and 9.

上記一対の側板７、９は、図２に示すように、その径方向の中心線をなすそれぞれの中心円Ｐ１、Ｐ２が、同じ直径となるように形成されており、その中心円Ｐ１（Ｐ２）上に定ピッチで挿入孔１２が形成されている。一対の側板７、９間に複数の柱部８が、挿入孔１２の形成ピッチと同ピッチで配置される。この隣り合う柱部８、８の周方向の側面と、一対の側板７、９とに囲まれた空間がポケット１０となり、このポケット１０内に円筒ころ５が回転可能に保持される。   As shown in FIG. 2, the pair of side plates 7 and 9 are formed such that respective center circles P1 and P2 forming a center line in the radial direction have the same diameter, and the center circle P1 (P2 ) The insertion holes 12 are formed at a constant pitch. A plurality of column portions 8 are arranged between the pair of side plates 7 and 9 at the same pitch as the formation pitch of the insertion holes 12. A space surrounded by the side surfaces in the circumferential direction of the adjacent column portions 8 and 8 and the pair of side plates 7 and 9 becomes a pocket 10, and the cylindrical roller 5 is rotatably held in the pocket 10.

上記各柱部８の両端部に軸方向の突起１１が設けられ、この突起１１は周方向（側板７の周方向）両側面が平面となっており、その先端部側に頭部１３が、柱部８側に基部１４が一体に設けられている。   Protrusions 11 in the axial direction are provided at both ends of each of the column parts 8, and both sides of the protrusions 11 are flat in the circumferential direction (the circumferential direction of the side plate 7). A base portion 14 is integrally provided on the column portion 8 side.

この基部１４は、図３（ａ）に示すように、径方向の幅ｂが、各側板７、９の挿入孔１２の径方向の幅ｃよりも小さく設けられており、基部１４の径方向の両側面が、先端部に向かって広がるように形成されたテーパ部１５を経て、頭部１３の径方向の両側面となっている。この頭部１３の径方向の幅ｄが、各側板７、９の挿入孔１２の径方向の幅ｃに対して所要の締め代分だけ大きく形成され、頭部１３先端部の径方向両側に面取りが施されている。   As shown in FIG. 3A, the base portion 14 is provided with a radial width b smaller than a radial width c of the insertion holes 12 of the side plates 7 and 9. Both side surfaces of the head portion 13 become both side surfaces in the radial direction of the head portion 13 through a tapered portion 15 formed so as to spread toward the tip portion. The radial width d of the head 13 is formed to be larger than the radial width c of the insertion hole 12 of each side plate 7, 9 by a required tightening allowance. Chamfered.

突起１１を側板９の挿入孔１２に嵌め合わせると、図４に示すように、突起１１の両テーパ部１５が挿入孔１２の周縁部が係合する位置に形成されているので、挿入孔１２の周縁部が両テーパ部１５に係合する。このため、突起１１を挿入孔１２に嵌め合わせた状態では、突起１１のテーパ部１５と挿入孔１２との嵌め合わせが締まり嵌めとなる（図３（ｂ）参照）。   When the protrusion 11 is fitted into the insertion hole 12 of the side plate 9, as shown in FIG. 4, both tapered portions 15 of the protrusion 11 are formed at positions where the peripheral edge of the insertion hole 12 is engaged. Are engaged with both tapered portions 15. For this reason, in the state where the projection 11 is fitted into the insertion hole 12, the fitting between the taper portion 15 of the projection 11 and the insertion hole 12 is an interference fit (see FIG. 3B).

締まり嵌めにより突起１１と側板９の挿入孔１２とを嵌め合わせるので、柱部８が側板９に対して位置決めされ、柱部８の突起を加締めた際、その柱部８が傾いたり、ねじれたりすることを防止することができる。   Since the projection 11 and the insertion hole 12 of the side plate 9 are fitted together by an interference fit, the column portion 8 is positioned with respect to the side plate 9, and when the projection of the column portion 8 is crimped, the column portion 8 is inclined or twisted. Can be prevented.

また、この両テーパ部１５に挿入孔１２の周縁部が係合する状態では、挿入孔１２の周縁部がテーパ部１５から力Ｆ（周縁部を押し広げようとする力）を受ける。この力Ｆは、軸方向の分力Ｆ１と径方向の分力Ｆ２とに分解でき、軸方向の分力Ｆ１の作用により側板９が柱部８に押し付けられる。   Further, in a state where the peripheral portions of the insertion hole 12 are engaged with both the tapered portions 15, the peripheral portion of the insertion hole 12 receives a force F (a force for expanding the peripheral portion) from the tapered portion 15. This force F can be broken down into an axial component force F1 and a radial component force F2, and the side plate 9 is pressed against the column portion 8 by the action of the axial component force F1.

この押し付けにより、側板９の軸方向の位置ずれを防止することができるとともに、側板９の他端面１７と柱部８との摩擦力が大きくなる。この摩擦力の増大によって、軸受運転時における保持器６の柱部８の径方向の荷重（運転時に円筒ころ５が柱部８に当たった際の荷重）に対する強度が増す。   By this pressing, the axial displacement of the side plate 9 can be prevented, and the frictional force between the other end surface 17 of the side plate 9 and the column portion 8 is increased. The increase in the frictional force increases the strength against the radial load of the column portion 8 of the cage 6 during the bearing operation (the load when the cylindrical roller 5 hits the column portion 8 during operation).

また、基部１４の径方向両側面と挿入孔１２の内側面とにはすき間ｅが設けられており、このすき間ｅの存在により、突起１１と挿入孔１２との径方向の加工寸法誤差が許容される。さらに、両テーパ部１５に挿入孔１２の周縁部が係合することにより、側板９の径方向の位置ずれを防止することができる。なお、側板７の挿入孔１２と柱部８の突起１１との嵌め合わせについての作用、効果は、側板９と柱部８との嵌め合わせと同様のものとなるので省略する。   In addition, a gap e is provided between the both side surfaces of the base portion 14 in the radial direction and the inner side surface of the insertion hole 12, and the presence of the gap e allows a machining dimension error in the radial direction between the protrusion 11 and the insertion hole 12 to be allowed. Is done. Furthermore, when the peripheral part of the insertion hole 12 engages with both the taper parts 15, the position shift of the side plate 9 in the radial direction can be prevented. In addition, since the effect | action and effect about the fitting with the insertion hole 12 of the side plate 7 and the protrusion 11 of the column part 8 become the same as the fitting with the side plate 9 and the column part 8, it abbreviate | omits.

次に、この発明の他の実施形態を図５に示す。この実施形態は、図５（ａ）に示すように、一対の側板７、９の他端面１７の挿入孔１２周縁部に嵌合凹部１９を設け、柱部８の突起１１の周囲に軸方向に突出する補強段部２１を形成し、嵌合凹部１９に補強段部２１が嵌り合うようにした点で、上述した一実施形態（図２参照）と相違する。その他の構成は上述した実施形態と同様である。   Next, another embodiment of the present invention is shown in FIG. In this embodiment, as shown in FIG. 5 (a), a fitting recess 19 is provided on the peripheral edge of the insertion hole 12 in the other end surface 17 of the pair of side plates 7, 9, and axially around the protrusion 11 of the column portion 8. The embodiment is different from the above-described embodiment (see FIG. 2) in that the reinforcing step portion 21 is formed so as to be fitted in the fitting recess portion 19. Other configurations are the same as those of the above-described embodiment.

この実施形態の嵌合凹部１９は、図５（ａ）に示すように、断面四角型に設けられ、その深さ（軸方向の深さ）が、突起１１周りに形成した補強段部２１の突出高さよりも大きいものである。また、補強段部２１は、嵌合凹部１９に適合して嵌り合う形状（断面四角型）に形成される。   As shown in FIG. 5A, the fitting recess 19 of this embodiment is provided in a square cross section, and the depth (axial depth) of the reinforcing step portion 21 formed around the protrusion 11. It is larger than the protruding height. The reinforcing step portion 21 is formed in a shape (cross-sectional square shape) that fits and fits into the fitting recess 19.

各柱部８の突起１１に側板９の挿入孔１２を嵌め合わせると、図５（ｂ）に示すように、補強段部２１に嵌合凹部１９が嵌り合う。この嵌り合いにより、軸受運転時における保持器６の柱部８の径方向の荷重（運転時に円筒ころ５が柱部８に当たった際の荷重）を補強段部２１が受けるので、突起１１の柱部８側部分に作用するせん断応力に対する強度を向上させることができる。   When the insertion hole 12 of the side plate 9 is fitted to the protrusion 11 of each column part 8, the fitting concave part 19 is fitted to the reinforcing step part 21, as shown in FIG. By this fitting, the reinforcing step portion 21 receives the radial load of the column portion 8 of the cage 6 during the bearing operation (the load when the cylindrical roller 5 hits the column portion 8 during operation). The strength against shearing stress acting on the column portion 8 side portion can be improved.

また、突起１１と挿入孔１２との嵌め合いにより嵌合凹部１９と補強段部２１との間に、径方向のすき間ｆおよび軸方向のすき間ｇが形成される。このとき、嵌合凹部１９と補強段部２１との径方向のすき間ｆが、挿入孔１２の内側面と突起１１の基部１４の側面との径方向のすき間ｅよりも小さく設定されている。   Further, a radial gap f and an axial gap g are formed between the fitting recess 19 and the reinforcing step portion 21 by fitting the protrusion 11 with the insertion hole 12. At this time, the radial clearance f between the fitting recess 19 and the reinforcing step portion 21 is set to be smaller than the radial clearance e between the inner side surface of the insertion hole 12 and the side surface of the base portion 14 of the protrusion 11.

このように設定されることにより、軸受運転時、挿入孔と突起との径方向の位置がずれた場合、嵌合凹部１９の径方向の内面に補強段部２１が突き当たるので、その位置ずれを小さく抑えることができる。   By setting in this way, when the radial position between the insertion hole and the protrusion is displaced during the bearing operation, the reinforcing stepped portion 21 abuts against the radially inner surface of the fitting recess 19, so that the positional displacement is reduced. It can be kept small.

さらに、上記嵌合凹部１９と補強段部２１との間に軸方向のすき間ｇが形成されれば、側板９と柱部８とが接触した状態となるので、上述した突起１１のテーパ部１５による側板９の軸方向への押し付け力Ｆ１（図４参照）が、補強段部２１ではなく柱部８に対して作用するため、側板９が柱部８に確実に押し付けられる。なお、この実施形態においても、側板７の挿入孔１２と柱部８の突起１１との嵌め合わせについての作用、効果は、側板９と柱部８との嵌め合わせと同様のものとなるので省略する。   Furthermore, if the axial gap g is formed between the fitting recess 19 and the reinforcing step portion 21, the side plate 9 and the column portion 8 are brought into contact with each other. Since the pressing force F <b> 1 (see FIG. 4) in the axial direction of the side plate 9 acts on the column portion 8 instead of the reinforcing step portion 21, the side plate 9 is reliably pressed against the column portion 8. In this embodiment as well, the operation and effect of the fitting between the insertion hole 12 of the side plate 7 and the protrusion 11 of the column portion 8 are the same as the fitting of the side plate 9 and the column portion 8, so that the description is omitted. To do.

（ａ）一実施形態の円筒ころ軸受用保持器の使用状態を示す断面図、（ｂ）図１（ａ）Ｂ−Ｂ線における一部切り欠き断面図(A) Sectional drawing which shows the use condition of the cage for cylindrical roller bearings of one Embodiment, (b) FIG.1 (a) Partially cutaway sectional view in the BB line 同上の円筒ころ軸受け用保持器の一部切り欠き分解斜視図Partially cut away exploded perspective view of the same cylindrical roller bearing retainer （ａ）同上の嵌め合わせる前の状態を示す正面図、（ｂ）同上の嵌め合わせた状態を示す正面図(A) Front view showing a state before fitting the same, (b) Front view showing a fitted state of the same. 同上の嵌め合わせた状態を示す要部拡大側面図The principal part enlarged side view which shows the state which fitted together same as the above （ａ）他の実施形態の円筒ころ軸受用保持器の一部切り欠き分解斜視図、（ｂ）同上の嵌め合わせた状態を示す要部拡大側面図(A) Partial cutaway exploded perspective view of a cylindrical roller bearing retainer of another embodiment, (b) Main part enlarged side view showing a fitted state of the above

符号の説明Explanation of symbols

１ 内輪
２ 外輪
３ 軌道面
４ 軌道面
５ 円筒ころ
６ 保持器
７ 側板
８ 柱部
９ 側板
１０ ポケット
１１ 突起
１２ 挿入孔
１３ 頭部
１４ 基部
１５ テーパ部
１６ 一端面
１７ 他端面
１９ 嵌合凹部
２１ 補強段部 DESCRIPTION OF SYMBOLS 1 Inner ring 2 Outer ring 3 Raceway surface 4 Raceway surface 5 Cylindrical roller 6 Cage 7 Side plate 8 Column 9 Side plate 10 Pocket 11 Protrusion 12 Insertion hole 13 Head 14 Base 15 Taper portion 16 End surface 17 End surface 19 Fitting recess 21 Reinforcement Step

Claims (5)

環状の一対の側板(７)、(９)と、これらの側板(７)、(９)間を連結する複数の柱部(８)とからなり、前記各柱部(８)の両端部に軸方向の突起(１１)を設け、前記各側板(７)、(９)の周方向に前記各柱部(８)の突起(１１)を嵌める複数の挿入孔(１２)を定ピッチで形成し、前記突起(１１)を前記挿入孔(１２)に嵌め合わせた状態で、前記突起(１１)と前記挿入孔(１２)との嵌め合わせが締まり嵌めとなる円筒ころ軸受用保持器。   It consists of a pair of annular side plates (7), (9) and a plurality of column portions (8) connecting these side plates (7), (9), and is provided at both ends of each column portion (8). Protrusions (11) in the axial direction are provided, and a plurality of insertion holes (12) for fitting the protrusions (11) of the pillars (8) in the circumferential direction of the side plates (7), (9) are formed at a constant pitch. A cylindrical roller bearing retainer in which the fitting between the projection (11) and the insertion hole (12) is an interference fit in a state where the projection (11) is fitted into the insertion hole (12). 上記各柱部(８)の突起(１１)は、径方向の両側面に先端部に向かうに従って広がるテーパ部(１５)を有し、前記突起(１１)を上記挿入孔(１２)に嵌め合わせた状態で、上記各側板(７)、(９)の一端面(１６)の前記挿入孔(１２)周縁部が前記テーパ部(１５)に係合する請求項１に記載の円筒ころ軸受用保持器。   The protrusions (11) of the pillars (8) have taper portions (15) that widen toward both ends in the radial direction toward the tip, and the protrusions (11) are fitted into the insertion holes (12). 2. The cylindrical roller bearing according to claim 1, wherein a peripheral edge portion of the insertion hole (12) of the one end face (16) of each of the side plates (7) and (9) engages with the tapered portion (15). Cage. 上記各側板(７)、(９)の他端面(１７)の上記挿入孔(１２)周縁部に嵌合凹部(１９)を形成し、上記柱部(８)の突起(１１)の周囲に軸方向に突出する補強段部(２１)を設け、前記嵌合凹部(１９)に前記補強段部(２１)が嵌り合う請求項１または２に記載の円筒ころ軸受用保持器。   A fitting recess (19) is formed in the peripheral edge of the insertion hole (12) on the other end face (17) of each side plate (7), (9), and around the protrusion (11) of the column (8). The cylindrical roller bearing retainer according to claim 1 or 2, wherein a reinforcing step portion (21) protruding in the axial direction is provided, and the reinforcing step portion (21) is fitted in the fitting recess (19). 上記嵌合凹部(１９)と上記補強段部(２１)との径方向のすき間(ｆ)が、上記挿入孔(１２)の内側面と上記突起(１１)の柱部(８)側の側面との径方向のすき間(ｅ)よりも小さい請求項３に記載の円筒ころ軸受用保持器。   The gap (f) in the radial direction between the fitting recess (19) and the reinforcing step (21) is the inner side of the insertion hole (12) and the side of the protrusion (11) on the side of the column (8). The cylindrical roller bearing retainer according to claim 3, which is smaller than the radial clearance (e). 上記嵌合凹部(１９)と上記補強段部(２１)との間に軸方向のすき間(ｇ)を設けた請求項３または４に記載の円筒ころ軸受用保持器。   The cylindrical roller bearing retainer according to claim 3 or 4, wherein an axial gap (g) is provided between the fitting recess (19) and the reinforcing step portion (21).
JP2007078140A 2007-03-26 2007-03-26 Retainer for cylindrical roller bearing Pending JP2008240763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007078140A JP2008240763A (en) 2007-03-26 2007-03-26 Retainer for cylindrical roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007078140A JP2008240763A (en) 2007-03-26 2007-03-26 Retainer for cylindrical roller bearing

Publications (1)

Publication Number Publication Date
JP2008240763A true JP2008240763A (en) 2008-10-09

Family

ID=39912380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007078140A Pending JP2008240763A (en) 2007-03-26 2007-03-26 Retainer for cylindrical roller bearing

Country Status (1)

Country Link
JP (1) JP2008240763A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103573825A (en) * 2013-10-14 2014-02-12 宋利涛 Copper retainer for cylindrical roller bearing
JP2014047804A (en) * 2012-08-29 2014-03-17 Jtekt Corp Holder for cone roller bearing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014047804A (en) * 2012-08-29 2014-03-17 Jtekt Corp Holder for cone roller bearing
CN103573825A (en) * 2013-10-14 2014-02-12 宋利涛 Copper retainer for cylindrical roller bearing

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