JP2008019921A - Rolling bearing cage and rolling bearing - Google Patents

Rolling bearing cage and rolling bearing Download PDF

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Publication number
JP2008019921A
JP2008019921A JP2006190793A JP2006190793A JP2008019921A JP 2008019921 A JP2008019921 A JP 2008019921A JP 2006190793 A JP2006190793 A JP 2006190793A JP 2006190793 A JP2006190793 A JP 2006190793A JP 2008019921 A JP2008019921 A JP 2008019921A
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connecting pin
pin
axial direction
rolling bearing
annular plate
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Japanese (ja)
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Masakazu Tsuchiyama
正和 土山
Eishin Umagami
英信 馬上
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NSK Ltd
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NSK Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/46Cages for rollers or needles
    • F16C33/52Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers
    • F16C33/523Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers with pins extending into holes or bores on the axis of the rollers
    • F16C33/526Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers with pins extending into holes or bores on the axis of the rollers extending through the rollers and joining two lateral cage parts

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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 rolling bearing cage having improved manufacturing efficiency while relaxing stress concentration on connection portions between each annular plate and each connection pin, and to provide a rolling bearing. <P>SOLUTION: The rolling bearing comprises the cage 5 for holding a plurality of rollers 3 rollingly mounted between two bearing rings 1, 2. The cage 5 has the connection pins 6 inserted through the through-holes of the rollers 3 for rotatably holding the rollers 3, and the pair of annular plates 8a, 8b opposing each other across the rollers 3. The pair of annular plates 8a, 8b are connected to each connection pin 6 at one end via a male screw 6n and a female screw 9m, and connected to each connection pin 6 at the other end using a C-ring 7 for constraining the axial movement of the connection pin 6 and permitting the radial movement. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、転がり軸受用保持器および転がり軸受に関する。   The present invention relates to a rolling bearing cage and a rolling bearing.

例えば、急加減速や負荷変動が繰り返される減速機、あるいは重荷重を受ける圧延機など鉄鋼設備で使用される転がり軸受では、ラジアル方向および円周方向に急激な負荷変動が繰り返し発生するため、転がり軸受の許容荷重を大きくとれるように、その外輪と内輪との間に組み込まれる転動体として、例えば、円筒状あるいは円錐状の転動体(以下、「ころ」と記す)を使用している。   For example, in rolling bearings used in steel facilities such as reduction gears that repeatedly undergo rapid acceleration / deceleration and load fluctuations, or rolling mills that receive heavy loads, rapid load fluctuations occur repeatedly in the radial and circumferential directions. For example, a cylindrical or conical rolling element (hereinafter referred to as “roller”) is used as a rolling element incorporated between the outer ring and the inner ring so that the allowable load of the bearing can be increased.

ここで、この種の転がり軸受のころを保持する保持器としては、種々のタイプのものがあるが、ピンタイプ保持器と称されるものは、例えば図7に示すように、ころ103の中心の貫通孔103aに挿通する連結ピン106の一方の端部106bには雄ねじが形成されており、この一方の端部106bが、これに対向する一方の環状板108bに形成されて雌ねじを有するピン受け孔109bに螺合されている。そして、連結ピン106の他方の端部106aは、これに対向する環状板108aに設けられたピン受け孔109aに嵌入され、このピン受け孔109aに嵌入された側の端部106aの端面全体を覆うように溶接110によって相互に連結されている(例えば特許文献1参照)。
特開2003−343574号公報
Here, there are various types of cages for holding the rollers of this type of rolling bearing, but what is called a pin type cage is the center of the roller 103 as shown in FIG. A male screw is formed on one end portion 106b of the connecting pin 106 that is inserted into the through hole 103a, and this one end portion 106b is formed on one annular plate 108b facing the pin 106 and has a female screw. Screwed into the receiving hole 109b. The other end 106a of the connecting pin 106 is fitted into a pin receiving hole 109a provided in the annular plate 108a facing the connecting pin 106, and the entire end face of the end 106a on the side fitted into the pin receiving hole 109a is covered. It is mutually connected by welding 110 so that it may cover (for example, refer to patent documents 1).
JP 2003-343574 A

しかしながら、従来のこの種の保持器では、環状板と連結ピンとの連結部分に溶接を採用しているので、ラジアル方向および円周方向に強い衝撃を受けるような過酷な条件下において、この溶接された連結部分に応力が集中し、連結部分にクラックが生じることがある。そこで、このような連結部分への応力集中を緩和させるために、環状板のピン受け孔と連結ピンとの嵌合孔部に締め代をもたせ、この締め代をもたせた嵌合孔部によってラジアル方向の衝撃を受けさせる構造としたものもある。しかし、嵌合孔部に締め代をもたせた保持器の場合であっても、やはり連結部分に溶接を採用しているので、溶接部にクラック等が生じるおそれがある点では同様であり、また、溶接作業は手間の掛かる作業なので、生産効率の観点からも改善の余地が残されている。   However, since this type of conventional cage employs welding at the connecting portion between the annular plate and the connecting pin, it is welded under severe conditions that are subject to strong impacts in the radial and circumferential directions. Stress may concentrate on the connected portion, and a crack may occur in the connected portion. Therefore, in order to alleviate the stress concentration on the connecting portion, the fitting hole portion between the pin receiving hole of the annular plate and the connecting pin has a tightening margin, and the fitting hole portion having the tightening margin has a radial direction. There is also a structure that receives the impact of. However, even in the case of a cage in which a fitting hole is provided with a tightening allowance, since welding is also adopted for the connecting portion, the same is true in that there is a possibility that a crack or the like may occur in the welded portion. Since the welding work is time-consuming work, there is still room for improvement from the viewpoint of production efficiency.

そこで、本発明は、このような問題点に着目してなされたものであって、環状板と連結ピンとの連結部分への応力集中を防止または緩和するとともに、生産効率を向上し得る転がり軸受用保持器および転がり軸受を提供することを目的としている。   Therefore, the present invention has been made paying attention to such a problem, and it is for a rolling bearing that can prevent or alleviate stress concentration on the connection portion between the annular plate and the connection pin and can improve the production efficiency. The object is to provide a cage and a rolling bearing.

上記課題を解決するために、本発明のうち第一の発明は、外周面に軌道を有する内輪と、内周面に軌道を有する外輪と、これら軌道同士の間に転動自在に介装され、軸方向に貫通孔を有する複数のころと、を備えた転がり軸受に用いられ、前記ころの貫通孔に挿通されて前記ころを回転自在に保持する連結ピンと、前記ころを挟んで互いに対向する一対の環状板と、を備え、前記一対の環状板は、前記連結ピンの各端部を挿入可能な複数のピン受け孔をそれぞれ有し、前記一対の環状板のピン受け孔と前記連結ピンの各端部とが相互にそれぞれ連結される保持器であって、前記一対の環状板のピン受け孔と前記連結ピンの各端部とは、前記連結ピンの一端側が、当該一端側の連結ピンの端部に設けられた雄ねじと、当該一端側の前記環状板のピン受け孔に形成されて前記雄ねじに螺合可能な雌ねじと、によって相互に連結されており、前記連結ピンの他端側が、前記連結ピンの軸方向への移動については拘束し且つ径方向への移動については許容する係合手段によって相互に連結されていることを特徴としている。   In order to solve the above-described problems, a first invention of the present invention is an inner ring having a raceway on an outer peripheral surface, an outer ring having a raceway on an inner peripheral surface, and a roll freely interposed between these raceways. And a plurality of rollers having a through hole in the axial direction, and a connecting pin that is inserted through the through hole of the roller and rotatably holds the roller, and faces each other across the roller A pair of annular plates, each of the pair of annular plates having a plurality of pin receiving holes into which end portions of the connecting pins can be inserted, and the pin receiving holes of the pair of annular plates and the connecting pins Each of the end portions of the pair of annular plates and the end portions of the connecting pin are connected to each other at one end side of the connecting pin. The male screw provided at the end of the pin and the annular plate on the one end side And the other end side of the connecting pin restrains the movement of the connecting pin in the axial direction and extends in the radial direction. These movements are connected to each other by an allowable engaging means.

また、本発明のうち第二の発明は、外周面に軌道を有する内輪と、内周面に軌道を有する外輪と、これら軌道同士の間に転動自在に介装され、軸方向に貫通孔を有する複数のころと、を備えた転がり軸受に用いられ、前記ころの貫通孔に挿通されて前記ころを回転自在に保持する連結ピンと、前記ころを挟んで互いに対向する一対の環状板と、を備え、前記一対の環状板は、前記連結ピンの各端部を挿入可能な複数のピン受け孔をそれぞれ有し、前記一対の環状板のピン受け孔と前記連結ピンの各端部とが相互にそれぞれ連結される保持器であって、前記一対の環状板のピン受け孔と前記連結ピンの各端部とのそれぞれは、前記連結ピンの軸方向への移動については拘束し且つ径方向への移動については許容する係合手段によって相互に連結されていることを特徴としている。   The second invention of the present invention is an inner ring having a raceway on the outer peripheral surface, an outer ring having a raceway on the inner peripheral surface, and a roll between these raceways, and a through hole in the axial direction. A connecting pin that is inserted into a through-hole of the roller and rotatably holds the roller, and a pair of annular plates facing each other with the roller interposed therebetween, Each of the pair of annular plates has a plurality of pin receiving holes into which the end portions of the connecting pins can be inserted, and the pin receiving holes of the pair of annular plates and the end portions of the connecting pins are connected to each other. Retainers connected to each other, wherein each of the pin receiving holes of the pair of annular plates and each end of the connecting pin restrains movement of the connecting pin in the axial direction and radially Are connected to each other by allowing engagement means. It is characterized in that it is.

なお、上記係合手段としては、例えば、連結ピンの外周面に係合溝を形成し、その係合溝に嵌め込み可能な止め輪等を用いることで構成することができる。
また、本発明のうち第三の発明は、転がり軸受であって、上記本発明に係る転がり軸受用保持器を備えていることを特徴としている。
In addition, as said engaging means, an engaging groove is formed in the outer peripheral surface of a connection pin, for example, It can comprise by using the retaining ring etc. which can be engage | inserted in the engaging groove.
The third invention of the present invention is a rolling bearing, and is characterized by comprising the rolling bearing retainer according to the present invention.

本発明によれば、環状板と連結ピンの端部とは、連結ピンの軸方向への移動については拘束し且つ径方向への移動については許容する係合手段によって相互が連結されているので、この係合手段による連結部分は、ラジアル方向および円周方向に負荷変動が生じても、環状板と連結ピンとの連結部分への応力集中が軽減される。
そして、この係合手段としては、例えば、連結ピンの外周面に係合溝を形成し、その係合溝に嵌め込み可能な止め輪等を用いることで構成することができるので、溶接作業に比べて、相互を連結するための作業が簡単である。
According to the present invention, the annular plate and the end of the connecting pin are connected to each other by the engaging means that restrains the connecting pin from moving in the axial direction and allows it to move in the radial direction. The connection portion by the engaging means reduces the stress concentration on the connection portion between the annular plate and the connection pin even if a load fluctuation occurs in the radial direction and the circumferential direction.
And as this engaging means, for example, it can be constituted by forming an engaging groove on the outer peripheral surface of the connecting pin and using a retaining ring or the like that can be fitted into the engaging groove. Thus, the work for connecting the two is simple.

したがって、本発明によれば、環状板と連結ピンとの連結部分への応力集中を防止または緩和するとともに、生産効率を向上させることができる。   Therefore, according to the present invention, it is possible to prevent or alleviate the stress concentration on the connecting portion between the annular plate and the connecting pin, and improve the production efficiency.

以下、本発明に係る転がり軸受用保持器およびその保持器を備えた転がり軸受の一実施形態について、図面を適宜参照しつつ説明する。
図1は、本発明を円筒ころ軸受に適用した例であり、同図では、円筒ころ軸受をその軸方向の断面図で示している。
同図に示すように、この円筒ころ軸受10は、外周面に軌道4aを有する内輪1と、内周面に軌道4bを有する外輪2と、を備えている。そして、内輪1および外輪2が組み合わされてつくる軌道4a、4b同士の間に、軸方向に貫通孔3aを有する円筒状のころ3が転動自在に複数介装されている。さらに、軌道4a、4b同士の間には、その各ころ3相互の円周方向位置を規制する保持器5が配置されている。
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of a rolling bearing cage and a rolling bearing including the cage according to the present invention will be described with reference to the drawings as appropriate.
FIG. 1 shows an example in which the present invention is applied to a cylindrical roller bearing. In FIG. 1, the cylindrical roller bearing is shown in an axial sectional view.
As shown in the figure, the cylindrical roller bearing 10 includes an inner ring 1 having a raceway 4a on the outer peripheral surface and an outer ring 2 having a raceway 4b on the inner peripheral surface. A plurality of cylindrical rollers 3 having through holes 3a in the axial direction are interposed between the raceways 4a and 4b formed by combining the inner ring 1 and the outer ring 2 so as to be able to roll. Further, a cage 5 is disposed between the tracks 4a and 4b to regulate the circumferential position between the rollers 3.

次に、この保持器5について図2を適宜参照して詳しく説明する。なお、同図は、図1でのZ−Z断面を拡大して示している。
この保持器5は、同図に示すように、ころ3の貫通孔3aに挿通されて、ころ3を回転自在に保持する複数本の連結ピン6を有する。この連結ピン6は、SNCM431、S35C、S38C等の鉄鋼材料で形成されており、各連結ピン6の表層部には浸炭硬化層が形成されている。そして、その連結ピン6の両側には、ころ3を挟んで互いに対向する一対の環状板8a、8bを備えている。
Next, the cage 5 will be described in detail with reference to FIG. In addition, the same figure has expanded and shown the ZZ cross section in FIG.
As shown in the figure, the cage 5 has a plurality of connecting pins 6 that are inserted into the through holes 3a of the rollers 3 and hold the rollers 3 rotatably. The connecting pin 6 is made of a steel material such as SNCM431, S35C, or S38C, and a carburized hardened layer is formed on the surface layer portion of each connecting pin 6. A pair of annular plates 8 a and 8 b are provided on both sides of the connecting pin 6 so as to face each other with the roller 3 interposed therebetween.

これら一対の環状板8a、8bは、連結ピン6の端部それぞれが挿入されて相互が連結される複数のピン受け孔9a、9bが、円周方向に等間隔を開けてそれぞれに形成されている。そして、この保持器5は、一対の環状板8a、8bの各ピン受け孔9a、9bに連結ピン6の端部がそれぞれ連結され、一対の環状板8a、8bが連結ピン6によって所定の間隔を開けて相互に一体化されている。   Each of the pair of annular plates 8a and 8b has a plurality of pin receiving holes 9a and 9b that are inserted into the ends of the connecting pins 6 and connected to each other, and are formed at equal intervals in the circumferential direction. Yes. The retainer 5 is connected to the pin receiving holes 9a, 9b of the pair of annular plates 8a, 8b at the ends of the connection pins 6, respectively. The pair of annular plates 8a, 8b are connected to each other by the connection pins 6. Are open and integrated with each other.

詳しくは、同図に示すように、ピン受け孔のうち一端側(同図での右側)の環状板8bに穿設されたピン受け孔9bには、その内周面に、幅方向の内側から外側に向けて縮径するテーパ状の雌ねじ9mが形成されている。そして、連結ピン6の右側端部6bには、その外周面に、雌ねじ9mに螺合可能なテーパ状の雄ねじ6nが形成されており、連結ピン6の右側端部6bが、環状板8aの外側面に対して面一となる位置まで締め込まれて相互に固定されている。   Specifically, as shown in the figure, the pin receiving hole 9b formed in the annular plate 8b on one end side (the right side in the figure) of the pin receiving hole has an inner circumferential surface on the inner side in the width direction. A tapered female screw 9m having a diameter decreasing toward the outside is formed. A tapered male screw 6n that can be screwed into the female screw 9m is formed on the outer peripheral surface of the right end 6b of the connecting pin 6. The right end 6b of the connecting pin 6 is connected to the annular plate 8a. They are fastened to a position that is flush with the outer surface and fixed to each other.

一方、他端側(同図での左側)の環状板8aに穿設されたピン受け孔9aには、連結ピン6の左側端部6aが環状板8aに嵌入されている。
このピン受け孔9aは、段付き孔になっており、連結ピン6の左側端部6aの外径より僅かに大きな孔径を有する嵌合孔部9nと、その嵌合孔部9nと同軸に且つその外径よりも大きな外径をもつとともに、軸方向(幅方向)の端部側に設けられる凹の段部9hと、を有して形成されている。そして、連結ピン6の左側端部6aには、その端部側の外周面に、円環状の係合溝6mが形成されている。なお、連結ピン6の左側端部6aは、その端面に、段部6gを有する。
On the other hand, the left end 6a of the connecting pin 6 is fitted into the annular plate 8a in the pin receiving hole 9a formed in the annular plate 8a on the other end side (left side in the figure).
The pin receiving hole 9a is a stepped hole, and has a fitting hole 9n having a diameter slightly larger than the outer diameter of the left end 6a of the connecting pin 6, and coaxial with the fitting hole 9n. It has an outer diameter larger than the outer diameter, and has a concave step 9h provided on the end side in the axial direction (width direction). An annular engagement groove 6m is formed on the outer peripheral surface on the end portion side of the left end portion 6a of the connecting pin 6. The left end portion 6a of the connecting pin 6 has a stepped portion 6g on its end surface.

そして、この連結ピン6の左側端部6aの係合溝6mに、止め輪であるCリング7が装着され、上記凹の段部9hの幅方向を向く面9rに、このCリング7が当接することで、連結ピン6の軸方向への移動が拘束されるようになっている。ここで、このCリング7の外径は、凹の段部9hの内径よりも小さい。そして、相互の隙間は、連結ピン6の径方向での移動量よりも大きくなっている。そのため、Cリング7は、連結ピン6の径方向への移動については規制せず、その移動を許容する。なお、連結ピン6の軸方向での嵌入位置は、両環状板8a、8bともにその外側面と面一に規制されている。つまり、Cリング7による他端側での連結についても、環状板8aの外側面からの連結ピン6の軸方向への突出量がほとんど生じない(ほぼ0mm)位置に凹の段部9hの深さや係合溝6mの軸方向での位置が設定されている。   Then, a C ring 7 as a retaining ring is attached to the engaging groove 6m of the left end portion 6a of the connecting pin 6, and the C ring 7 contacts the surface 9r facing the width direction of the concave step portion 9h. By contacting, the movement of the connecting pin 6 in the axial direction is restricted. Here, the outer diameter of the C ring 7 is smaller than the inner diameter of the concave step 9h. The mutual gap is larger than the movement amount of the connecting pin 6 in the radial direction. Therefore, the C ring 7 does not regulate the movement of the connecting pin 6 in the radial direction and allows the movement. In addition, the insertion position in the axial direction of the connecting pin 6 is regulated to be flush with the outer surface of both the annular plates 8a and 8b. That is, for the connection on the other end side by the C ring 7, the depth of the concave step portion 9 h at a position where the protruding amount of the connecting pin 6 from the outer surface of the annular plate 8 a in the axial direction hardly occurs (approximately 0 mm). The position of the sheath groove 6m in the axial direction is set.

ここで、本実施形態の例では、上記係合手段には、環状板8aのピン受け孔9aに形成された凹の段部9hと、連結ピン6の左側端部6aに設けられた係合溝6mと、この係合溝6mに装着されるとともにピン受け孔9aに対しその幅方向を向く面9rに当接するCリング7と、からなる構成が対応する。
次に、この保持器5およびこれを備える円筒ころ軸受10の作用・効果について説明する。
Here, in the example of the present embodiment, the engaging means includes an engaging step provided on the concave step portion 9 h formed in the pin receiving hole 9 a of the annular plate 8 a and the left end portion 6 a of the connecting pin 6. A configuration comprising a groove 6m and a C ring 7 attached to the engaging groove 6m and abutting against a surface 9r facing the width direction of the pin receiving hole 9a corresponds.
Next, functions and effects of the cage 5 and the cylindrical roller bearing 10 having the cage 5 will be described.

上述のように、この円筒ころ軸受10によれば、その内輪1と外輪2との間に組み込まれる転動体として、円筒状のころ3を使用しているので、例えば、急加減速や負荷変動が繰り返される減速機、あるいは重荷重を受ける圧延機などの鉄鋼設備で使用される場合であっても、転がり軸受の許容荷重を大きくとれる。
特に、この円筒ころ軸受10によれば、連結ピン6の一端側は、雄ねじ6nと雌ねじ9mとによって相互に連結され、他端側は、連結ピン6の係合溝6mにCリング7が装着され、このCリング7が、ピン受け孔9aの凹の段部9hに対しその幅方向を向く面9rに当接することで軸方向の移動を拘束し、これにより、一対の環状板8a、8bと連結ピン6とが相互に連結されているので、一対の環状板8a、8bのピン受け孔9a、9bと連結ピン6の端部6a、6bそれぞれとは、溶接を用いることなく連結可能である。そのため、手間の掛かる溶接作業を不要とし、保持器5の組立を容易に行うことができる。したがって、この円筒ころ軸受10(保持器5)の生産効率を向上させることができる。
As described above, according to the cylindrical roller bearing 10, the cylindrical roller 3 is used as a rolling element incorporated between the inner ring 1 and the outer ring 2. Even when used in steel equipment such as a reduction gear that repeats the above, or a rolling mill that receives a heavy load, the allowable load of the rolling bearing can be increased.
In particular, according to this cylindrical roller bearing 10, one end side of the connecting pin 6 is connected to each other by the male screw 6n and the female screw 9m, and the other end side is mounted with the C ring 7 in the engaging groove 6m of the connecting pin 6. The C ring 7 restrains the movement in the axial direction by contacting the concave step 9h of the pin receiving hole 9a with the surface 9r facing in the width direction, and thereby a pair of annular plates 8a, 8b. Since the connecting pin 6 and the connecting pin 6 are connected to each other, the pin receiving holes 9a, 9b of the pair of annular plates 8a, 8b and the end portions 6a, 6b of the connecting pin 6 can be connected without using welding. is there. This eliminates the need for time-consuming welding work and allows the cage 5 to be easily assembled. Therefore, the production efficiency of this cylindrical roller bearing 10 (retainer 5) can be improved.

さらに、このCリング7は、連結ピン6の径方向への移動についてはこれを許容するように装着されるので、Cリング7は、ラジアル方向での荷重を受けることはない。そのため、例えば上述のように、溶接を採用した連結構造に比べ、ラジアル方向および円周方向に強い衝撃を受ける等によって、このCリング7で連結された連結部分に応力が集中することがない。また、溶接による残留引張応力などが生じることもないので、保持器5全体の歪み等が生じることも軽減される。したがって、環状板と連結ピンとの連結部分への応力集中を防止または緩和することができる。   Further, since the C ring 7 is mounted so as to allow the movement of the connecting pin 6 in the radial direction, the C ring 7 does not receive a load in the radial direction. Therefore, for example, as described above, stress is not concentrated on the connecting portion connected by the C ring 7 due to a strong impact in the radial direction and the circumferential direction as compared with the connecting structure employing welding. Further, since there is no residual tensile stress due to welding, it is possible to reduce the occurrence of distortion of the entire cage 5. Therefore, stress concentration on the connection portion between the annular plate and the connection pin can be prevented or alleviated.

なお、本発明に係る転がり軸受用保持器および転がり軸受は、上記実施形態に限定されるものではない。
例えば、上記実施形態では、連結ピン6の軸方向での嵌入位置を環状板8a、8bの外側面と面一とし、Cリング7による連結構造は、環状板8a、8bの外側面からの連結ピン6の軸方向への突出量がほとんど生じない(ほぼ0mm)ように形成されている例で説明したが、これに限定されず、例えば連結ピン6の端面が環状板の外側面から僅かに出っ張って嵌入されてもよいし、また、連結ピン6の端面が環状板の外側面から僅かに引っ込んで嵌入されてもよい。
The rolling bearing retainer and the rolling bearing according to the present invention are not limited to the above-described embodiment.
For example, in the above embodiment, the insertion position of the connecting pin 6 in the axial direction is flush with the outer surface of the annular plates 8a and 8b, and the connection structure by the C ring 7 is connected from the outer surface of the annular plates 8a and 8b. The example in which the protruding amount of the pin 6 in the axial direction hardly occurs (almost 0 mm) has been described. However, the present invention is not limited to this. For example, the end surface of the connecting pin 6 is slightly from the outer surface of the annular plate. It may be inserted in a protruding manner, or the end surface of the connecting pin 6 may be slightly retracted from the outer surface of the annular plate.

また、本発明に係る転がり軸受用保持器および転がり軸受は、上記実施形態に限定されず、本発明の趣旨を逸脱しなければ種々の変形が可能である。以下、上記実施形態の変形例を示す。なお、以下例示する変形例は、上記実施形態と異なる点について説明し、同様の構成については同一の符号を付すとともに、その詳しい説明については省略する。
まず、図3に、本発明に係る転がり軸受用保持器において、連結ピン6に二段ピンを用いた例(第一の変形例)を示す。
Moreover, the rolling bearing retainer and the rolling bearing according to the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. Hereinafter, modifications of the above embodiment will be described. In addition, the modification illustrated below demonstrates a different point from the said embodiment, while attaching | subjecting the same code | symbol about the same structure, it abbreviate | omits about the detailed description.
First, FIG. 3 shows an example (first modification) in which a two-stage pin is used as the connecting pin 6 in the rolling bearing retainer according to the present invention.

つまり、上記実施形態では、連結ピン6として、いわゆる一段ピンを採用した例で説明したが、これに限定されず、例えば連結ピン6として、いわゆる二段ピンを用いてもよい。
詳しくは、同図に示すように、環状板8aのピン受け孔9aは、上記同様の嵌合孔部9nと、その嵌合孔部9nと同軸に且つその外径よりも大きな外径をもつとともに、軸方向(幅方向)の端部側に設けられる第一の凹の段部9kと、この第一の凹の段部9kと同軸に且つその外径よりも大きな外径をもつとともに軸方向のさらに端部側に設けられる第二の凹の段部9pと、を有して形成されている。そして、このピン受け孔9aに連結される連結ピン6の左側端部6aは、ピン受け孔9aの嵌合孔部9nに嵌入される第一の嵌入部6nと、この第一の嵌入部6nよりも軸方向の端部側に設けられて前記第一の凹の段部9kに嵌入可能な第二の嵌入部6kと、を有して形成されている。そして、係合溝6mは、この第二の嵌入部6kの外周面に端部寄りの位置に形成されており、Cリング7が、前記第二の凹の段部9pに対しその幅方向を向く面9rに当接するように構成されている。
That is, in the above-described embodiment, the example in which a so-called single-stage pin is employed as the connecting pin 6 has been described. However, the present invention is not limited to this, and for example, a so-called two-stage pin may be used as the connecting pin 6.
Specifically, as shown in the figure, the pin receiving hole 9a of the annular plate 8a has the same fitting hole 9n as described above, and has an outer diameter that is coaxial with the fitting hole 9n and larger than its outer diameter. And a first concave step 9k provided on the end side in the axial direction (width direction), an axis that is coaxial with the first concave step 9k and has an outer diameter larger than its outer diameter. And a second concave step 9p provided on the further end side in the direction. The left end portion 6a of the connecting pin 6 connected to the pin receiving hole 9a includes a first fitting portion 6n fitted into the fitting hole portion 9n of the pin receiving hole 9a, and the first fitting portion 6n. And a second fitting portion 6k that is provided closer to the end portion in the axial direction and can be fitted into the first concave step portion 9k. And the engaging groove 6m is formed in the outer peripheral surface of this 2nd insertion part 6k in the position near the edge part, and the C ring 7 has the width direction with respect to said 2nd recessed step part 9p. It is comprised so that it may contact | abut to the surface 9r which faces.

このような構成であっても、上記第一実施形態同様に、手間の掛かる溶接作業を不要とし、保持器の組立を容易に行うことができるので、保持器5の生産効率を向上させることができる。さらに、Cリング7は、連結ピン6の径方向への移動については許容するように装着されている。つまり、ラジアル方向および円周方向での荷重を受けることはないので、ラジアル方向および円周方向に強い衝撃を受ける等によっても、環状板と連結ピンとの連結部分への応力集中を防止または緩和することができる。   Even with such a configuration, as in the first embodiment, it is possible to eliminate the labor-consuming welding work and to easily assemble the cage, thereby improving the production efficiency of the cage 5. it can. Further, the C ring 7 is mounted so as to allow the movement of the connecting pin 6 in the radial direction. That is, since the load in the radial direction and the circumferential direction is not received, the stress concentration on the connection portion between the annular plate and the connection pin is prevented or alleviated even by receiving a strong impact in the radial direction and the circumferential direction. be able to.

特に、この第一の変形例によれば、Cリング7を装着する部分(第二の嵌入部6k)の外径を大きくすることができるので、呼びの大きなCリング(止め輪)を選定して、これを装着可能である。そのため、耐荷重をより大きく設定することができる。また、この第一の変形例によれば、連結ピン6に二段ピンを用いているので、同じ呼びのCリング(止め輪)を選定した場合でも、上記実施形態に比べて連結ピン6の径を細く設定することができる。   In particular, according to the first modification, the outer diameter of the portion (second fitting portion 6k) to which the C ring 7 is attached can be increased, so a large C ring (retaining ring) is selected. This can be installed. Therefore, the load resistance can be set larger. In addition, according to the first modification, since the two-stage pin is used as the connecting pin 6, even when a C-ring (retaining ring) having the same name is selected, the connecting pin 6 is compared with the above embodiment. The diameter can be set thin.

また、例えば、上記実施形態では、一対の環状板8a、8bそれぞれに対し、連結ピン6の両端部6a、6bを、一方の端部6bは雌雄のねじによって締結するように構成し、他方の端部6aはCリング7にて連結する例で説明したが、これに限定されず、連結ピン6の両端部6a、6bを、ピン受け孔9a、9bに嵌入する構造とし、Cリング7や段付き軸にて相互を連結する構成としてもよい。   Further, for example, in the above-described embodiment, both end portions 6a and 6b of the connecting pin 6 are configured to be fastened to the pair of annular plates 8a and 8b, respectively, and one end portion 6b is fastened by male and female screws. Although the end part 6a was demonstrated in the example connected with the C ring 7, it is not limited to this, The both ends 6a and 6b of the connection pin 6 are made into the structure which fits into the pin receiving holes 9a and 9b, C ring 7 It is good also as a structure which mutually connects with a stepped axis | shaft.

例えば、図4に、本発明に係る転がり軸受用保持器において、連結ピン6を嵌入する構造を用いた例(第二の変形例)を示す。
同図に示すように、この連結ピン6の右側端部6bは、ねじによる締結に替えて、Cリング7が装着されるようになっている。つまり、環状板8bのピン受け孔9bは、嵌合孔部9nと、これと同軸に且つその外径よりも大きな外径をもつとともに幅方向の外側に形成された凹の段部9hと、を有している。そして、連結ピン6の右側端部6bには、その外周面に円環状の係合溝6mが設けられており、この係合溝6mに上記同様にCリング7が装着されている。
For example, FIG. 4 shows an example (second modification) using a structure in which the connecting pin 6 is inserted in the rolling bearing retainer according to the present invention.
As shown in the figure, the right end 6b of the connecting pin 6 is adapted to be fitted with a C-ring 7 instead of fastening with a screw. That is, the pin receiving hole 9b of the annular plate 8b has a fitting hole portion 9n, a concave step portion 9h that is coaxial with this and has an outer diameter larger than the outer diameter and is formed on the outer side in the width direction, have. An annular engaging groove 6m is provided on the outer peripheral surface of the right end 6b of the connecting pin 6, and the C ring 7 is mounted in the engaging groove 6m in the same manner as described above.

さらに、連結ピン6の左側端部6aには、その径方向に円環状に張り出す鍔部6tが設けられている。そして、環状板9aのピン受け孔9aには、上記同様の嵌合孔部9nと、凹の段部9hと、が形成されている。この凹の段部9hの内径は、鍔部6tの外径よりも大きく、径方向で相互に隙間を有している。これにより、上記鍔部6tは、凹の段部9hに連結ピン6の軸方向で係合することで連結ピン6の軸方向への移動については拘束するとともに、径方向への移動については許容するように構成されている。   Furthermore, the left end portion 6a of the connecting pin 6 is provided with a flange portion 6t projecting in an annular shape in the radial direction. The pin receiving hole 9a of the annular plate 9a is formed with a fitting hole portion 9n similar to the above and a concave step portion 9h. The inner diameter of the concave step portion 9h is larger than the outer diameter of the flange portion 6t and has a gap in the radial direction. As a result, the flange 6t engages with the concave step 9h in the axial direction of the connecting pin 6, thereby restraining the movement of the connecting pin 6 in the axial direction and allowing the movement in the radial direction. Is configured to do.

ここで、この連結ピン6の両端部6a、6bは、共に、それぞれの嵌入されるピン受け孔9a、9bの孔径に、所定の締め代をもって嵌入されている。なお、この所定の締め代としては、例えば、連結ピン6の両端部6a、6bの外径よりもピン受け孔9a、9bの孔径が5〜40μm程度小さい孔径とすれば好ましい。
本発明に係る係合手段は、この第二の変形例のように構成されていても、上記第一実施形態同様の作用・効果を奏する。つまり、この鍔部6tと、凹の段部9hとによっても、連結ピンの軸方向への移動を拘束し且つ径方向への移動については許容する係合手段を構成可能であり、上記第一実施形態同様に、手間の掛かる溶接作業を不要とし、保持器の組立を容易に行うことができるので、保持器5の生産効率を向上させることができる。さらに、この鍔部6tは、ラジアル方向および円周方向での荷重を受けることはないので、円筒ころ軸受10がラジアル方向および円周方向に強い衝撃を受ける等によっても、環状板9aと連結ピン6の左側端部6aとの連結部分への応力集中を防止または緩和することができる。
Here, both end portions 6a and 6b of the connecting pin 6 are inserted into the hole diameters of the respective pin receiving holes 9a and 9b to be inserted with a predetermined tightening margin. In addition, as this predetermined fastening allowance, for example, it is preferable that the hole diameters of the pin receiving holes 9a and 9b are smaller than the outer diameters of both end portions 6a and 6b of the connecting pin 6 by about 5 to 40 μm.
Even if the engaging means according to the present invention is configured as in the second modification, the same operation and effect as in the first embodiment are achieved. That is, the hook 6t and the concave step 9h can also constitute an engaging means that restricts the movement of the connecting pin in the axial direction and allows the movement in the radial direction. Similar to the embodiment, since a labor-consuming welding operation is not required and the cage can be easily assembled, the production efficiency of the cage 5 can be improved. Further, since the flange 6t does not receive a load in the radial direction and the circumferential direction, the annular plate 9a and the connecting pin are also received when the cylindrical roller bearing 10 receives a strong impact in the radial direction and the circumferential direction. It is possible to prevent or alleviate stress concentration on the connecting portion of the 6 with the left end 6a.

また、特に、この第二の変形例の構成によれば、連結ピン6の両端部6a、6bは、共に、それぞれの嵌入されるピン受け孔9a、9bの孔径に、所定の締め代をもって嵌入されているので、この締め代をもって嵌入されている部分で、ラジアル方向および円周方向での衝撃を好適に受けることができる   In particular, according to the configuration of the second modification, both end portions 6a and 6b of the connecting pin 6 are inserted into the hole diameters of the respective pin receiving holes 9a and 9b to be inserted with a predetermined tightening allowance. Therefore, it is possible to suitably receive the impact in the radial direction and the circumferential direction at the portion inserted with this tightening allowance.

このように、本発明に係る係合手段は、Cリング7の使用の有無についても制限されない。しかし、着脱可能な係合手段を簡単な構成で実現する上では、止め輪を備える係合手段が好適に採用可能である。また、本発明に係る係合手段に用いる止め輪についても、上記例示したCリングに限定されるものではなく、連結ピンの軸方向への移動を拘束し且つ径方向への移動については許容するものであれば、種々の止め輪を適用可能である。例えば、Eリングが採用できる。Eリングを採用する場合、係合溝の部分の周囲に軸に直角な方向に貫通する溝(スリット)を形成すれば、容易に装着することができる。また、その他の止め輪としては、例えば、いわゆるプッシュナットやスピードナット等も使用可能である。   Thus, the engagement means according to the present invention is not limited with respect to whether or not the C-ring 7 is used. However, in order to realize the detachable engaging means with a simple configuration, an engaging means having a retaining ring can be suitably employed. Further, the retaining ring used for the engaging means according to the present invention is not limited to the C ring exemplified above, but restricts the movement of the connecting pin in the axial direction and allows the movement in the radial direction. If it is a thing, various retaining rings are applicable. For example, an E ring can be adopted. When the E-ring is adopted, it can be easily mounted if a groove (slit) penetrating in a direction perpendicular to the axis is formed around the engaging groove portion. Further, as other retaining rings, for example, so-called push nuts, speed nuts, and the like can be used.

さらに、図5に、本発明に係る転がり軸受用保持器において、連結ピン6の両端部を環状板に嵌入する構造を用いた例(第三の変形例)を示す。
同図に示すように、この連結ピン6は、その両端部6a、6b共に、Cリング7が装着されるようになっている。なお、各端部の係合手段の構成は上記第二の変形例での連結ピン6の右側端部6b同様である。したがって、この第三の変形例のように構成されていても、上記第二の変形例同様の作用・効果を奏する。
Furthermore, FIG. 5 shows an example (third modification) using a structure in which both ends of the connecting pin 6 are fitted into the annular plate in the rolling bearing retainer according to the present invention.
As shown in the figure, a C ring 7 is attached to both ends 6a and 6b of the connecting pin 6. The configuration of the engaging means at each end is the same as that of the right end 6b of the connecting pin 6 in the second modification. Therefore, even if configured as in the third modified example, the same operations and effects as the second modified example are achieved.

さらにまた、図6に、本発明に係る転がり軸受用保持器において、連結ピン6の両端部を環状板に嵌入する構造を用いた例(第四の変形例)を示す。
同図に示すように、この第四の変形例は、上記第三の変形例の構成に対し、一対の環状板8a、8bそれぞれに対し、その外側を塞ぐように円環状の蓋部材11a、11bをさらに装着した例である。
Furthermore, FIG. 6 shows an example (fourth modification) using a structure in which both ends of the connecting pin 6 are fitted into an annular plate in the rolling bearing retainer according to the present invention.
As shown in the figure, in the fourth modification example, an annular lid member 11a, so as to close the outside of each of the pair of annular plates 8a, 8b with respect to the configuration of the third modification example, In this example, 11b is further mounted.

環状板8a、8bの外側を塞ぐ各蓋部材11a、11bは、各環状板8a、8bそれぞれと同じ内外径を有する円環形状を有している。そして、各蓋部材11a、11bは、連結ピン6の両端部6a、6bそれぞれに対向する位置に、その端部の軸径よりも僅かに大きな貫通孔11cがそれぞれ形成されている。さらに、各環状板8a、8bには、ころ3や連結ピン6に干渉しない位置に、ねじ穴21が周方向に等間隔に複数形成されている。そして、各蓋部材11a、11bは、そのねじ穴21それぞれに対向する位置に皿穴22を有し、止めねじ20によって各環状板8a、8bに装着されるようになっている。   Each lid member 11a, 11b closing the outside of the annular plates 8a, 8b has an annular shape having the same inner and outer diameters as the respective annular plates 8a, 8b. Each lid member 11a, 11b is formed with a through hole 11c slightly larger than the axial diameter of the end portion at a position facing both end portions 6a, 6b of the connecting pin 6, respectively. Further, a plurality of screw holes 21 are formed in each annular plate 8a, 8b at equal intervals in the circumferential direction at positions where they do not interfere with the rollers 3 and the connecting pins 6. Each lid member 11 a, 11 b has a countersink 22 at a position facing each of the screw holes 21, and is attached to each annular plate 8 a, 8 b by a set screw 20.

この第四の変形例によれば、上記第三の変形例同様の作用・効果を奏するとともに、さらに、一対の環状板8a、8bそれぞれに対し、その外側を塞ぐように円環状の蓋部材11a、11bをそれぞれ装着しているので、Cリング7の外周側からもCリング7の軸方向の移動を拘束可能である。そのため、連結ピン6の軸方向での位置をより確実に拘束することができる。   According to the fourth modification, the same effects and advantages as those of the third modification are achieved, and each of the pair of annular plates 8a and 8b has an annular lid member 11a so as to close the outside. 11b are attached, so that the movement of the C ring 7 in the axial direction can be restricted from the outer peripheral side of the C ring 7 as well. Therefore, the position of the connecting pin 6 in the axial direction can be more reliably restrained.

なお、上記実施形態ないし変形例では、本発明を円筒ころ軸受(およびこれに用いられる保持器)に適用した例で説明したが、本発明を適用可能な転がり軸受および保持器は、円筒ころ軸受に限定されず、本発明は、例えば円すいころ軸受にも適用可能である。   In the above-described embodiment or modification, the present invention has been described as an example in which the present invention is applied to a cylindrical roller bearing (and a cage used therein). However, a rolling bearing and a cage to which the present invention can be applied are a cylindrical roller bearing. However, the present invention can be applied to, for example, a tapered roller bearing.

本発明の一実施形態に係る円筒ころ軸受の説明図であり、同図は、円筒ころ軸受をその軸方向の断面図で示している。It is explanatory drawing of the cylindrical roller bearing which concerns on one Embodiment of this invention, The figure has shown the cylindrical roller bearing with the sectional drawing of the axial direction. 本発明の一実施形態に係る保持器の説明図であり、同図は、図1でのZ−Z断面を拡大して示している。It is explanatory drawing of the holder | retainer which concerns on one Embodiment of this invention, The figure has expanded and shown the ZZ cross section in FIG. 本発明に係る転がり軸受用保持器の変形例(第一の変形例)を説明する図であり、同図は、図2に対応する図を示している。It is a figure explaining the modification (1st modification) of the cage for rolling bearings which concerns on this invention, The figure has shown the figure corresponding to FIG. 本発明に係る転がり軸受用保持器の変形例(第二の変形例)を説明する図であり、同図は、図2に対応する図を示している。It is a figure explaining the modification (2nd modification) of the cage for rolling bearings which concerns on this invention, The figure has shown the figure corresponding to FIG. 本発明に係る転がり軸受用保持器の変形例(第三の変形例)を説明する図であり、同図は、図2に対応する図を示している。It is a figure explaining the modification (3rd modification) of the cage for rolling bearings which concerns on this invention, The figure has shown the figure corresponding to FIG. 本発明に係る転がり軸受用保持器の変形例(第四の変形例)を説明する図であり、同図は、図2に対応する図を示している。It is a figure explaining the modification (4th modification) of the cage for rolling bearings which concerns on this invention, The figure has shown the figure corresponding to FIG. 従来の転がり軸受用保持器を説明する図であり、同図では、保持器の一部を、その軸方向の拡大断面図で示している。It is a figure explaining the conventional cage for rolling bearings, In the same figure, a part of cage is shown in the expanded sectional view of the axial direction.

符号の説明Explanation of symbols

1 内輪
2 外輪
3 ころ
3a 貫通孔
4a、4b 軌道
5 保持器
6 連結ピン
6n 雄ねじ
6t 鍔部
6m 係合溝
6n 第一の嵌入部
6k 第二の嵌入部
7 Cリング(止め輪)
8a、8b 環状板
9a、9b ピン受け孔
9m 雌ねじ
9n 嵌合孔部
9h 凹の段部
9k 第一の凹の段部
9p 第二の凹の段部
10 円筒ころ軸受(転がり軸受)
20 止めねじ
21 ねじ穴
22 皿穴
DESCRIPTION OF SYMBOLS 1 Inner ring 2 Outer ring 3 Roller 3a Through-hole 4a, 4b Track 5 Cage 6 Connecting pin 6n Male screw 6t 鍔 part 6m Engaging groove 6n First fitting part 6k Second fitting part 7 C ring (Retaining ring)
8a, 8b annular plate 9a, 9b pin receiving hole 9m female screw 9n fitting hole 9h concave step 9k first concave step 9p second concave step 10 cylindrical roller bearing (rolling bearing)
20 Set screw 21 Screw hole 22 Countersunk hole

Claims (8)

外周面に軌道を有する内輪と、内周面に軌道を有する外輪と、これら軌道同士の間に転動自在に介装され、軸方向に貫通孔を有する複数のころと、を備えた転がり軸受に用いられ、前記ころの貫通孔に挿通されて前記ころを回転自在に保持する連結ピンと、前記ころを挟んで互いに対向する一対の環状板と、を備え、前記一対の環状板は、前記連結ピンの各端部を挿入可能な複数のピン受け孔をそれぞれ有し、前記一対の環状板のピン受け孔と前記連結ピンの各端部とが相互にそれぞれ連結される保持器であって、
前記一対の環状板のピン受け孔と前記連結ピンの各端部とは、前記連結ピンの一端側が、当該一端側の連結ピンの端部に設けられた雄ねじと、当該一端側の前記環状板のピン受け孔に形成されて前記雄ねじに螺合可能な雌ねじと、によって相互に連結されており、前記連結ピンの他端側が、前記連結ピンの軸方向への移動については拘束し且つ径方向への移動については許容する係合手段によって相互に連結されていることを特徴とする転がり軸受用保持器。
A rolling bearing provided with an inner ring having a raceway on the outer peripheral surface, an outer ring having a raceway on the inner peripheral surface, and a plurality of rollers having a through hole in the axial direction interposed between the raceways. A connecting pin that is inserted into a through hole of the roller and rotatably holds the roller, and a pair of annular plates that face each other with the roller interposed therebetween, and the pair of annular plates includes the connecting pin A plurality of pin receiving holes into which the respective end portions of the pins can be inserted, and the pin receiving holes of the pair of annular plates and the respective end portions of the connecting pins are connected to each other;
The pin receiving holes of the pair of annular plates and the end portions of the connecting pins are: one end side of the connecting pin is a male screw provided at the end of the connecting pin on the one end side; and the annular plate on the one end side Are connected to each other by a female screw that can be screwed into the male screw, and the other end side of the connecting pin restrains the movement of the connecting pin in the axial direction and is in the radial direction. A rolling bearing retainer characterized in that it is connected to each other by engaging means that allows movement to the position.
外周面に軌道を有する内輪と、内周面に軌道を有する外輪と、これら軌道同士の間に転動自在に介装され、軸方向に貫通孔を有する複数のころと、を備えた転がり軸受に用いられ、前記ころの貫通孔に挿通されて前記ころを回転自在に保持する連結ピンと、前記ころを挟んで互いに対向する一対の環状板と、を備え、前記一対の環状板は、前記連結ピンの各端部を挿入可能な複数のピン受け孔をそれぞれ有し、前記一対の環状板のピン受け孔と前記連結ピンの各端部とが相互にそれぞれ連結される保持器であって、
前記一対の環状板のピン受け孔と前記連結ピンの各端部とのそれぞれは、前記連結ピンの軸方向への移動については拘束し且つ径方向への移動については許容する係合手段によって相互に連結されていることを特徴とする転がり軸受用保持器。
A rolling bearing provided with an inner ring having a raceway on the outer peripheral surface, an outer ring having a raceway on the inner peripheral surface, and a plurality of rollers having a through hole in the axial direction interposed between these raceways. A connecting pin that is inserted into a through hole of the roller and rotatably holds the roller, and a pair of annular plates that face each other with the roller interposed therebetween, and the pair of annular plates includes the connecting pin A plurality of pin receiving holes into which the respective end portions of the pins can be inserted, and the pin receiving holes of the pair of annular plates and the respective end portions of the connecting pins are connected to each other;
The pin receiving holes of the pair of annular plates and the end portions of the connecting pins are mutually connected by engaging means that restrains movement of the connecting pins in the axial direction and allows movement of the connecting pins in the radial direction. It is connected to a rolling bearing cage.
前記係合手段によって連結される前記環状板のピン受け孔は、前記連結ピンの端部に嵌合する嵌合孔部と、この嵌合孔部と同軸に且つその内径よりも大きな内径をもつとともに軸方向の端部側に設けられた凹の段部と、を有して形成され、
当該係合手段によって連結される前記連結ピンの端部は、その外周面に円環状に設けられた係合溝を有して形成され、
当該係合手段は、前記環状板の凹の段部と、前記連結ピンの係合溝と、この係合溝に装着されるとともに前記環状板の凹の段部に対し前記連結ピンの軸方向に係合する止め輪と、から構成されていることを特徴とする請求項1に記載の転がり軸受用保持器。
The pin receiving hole of the annular plate connected by the engaging means has a fitting hole that fits to the end of the connecting pin, and has an inner diameter that is coaxial with the fitting hole and larger than the inner diameter. And a concave step portion provided on the end side in the axial direction.
The end of the connecting pin connected by the engaging means is formed with an engaging groove provided in an annular shape on the outer peripheral surface thereof,
The engaging means includes a concave step portion of the annular plate, an engaging groove of the connecting pin, and an axial direction of the connecting pin with respect to the concave step portion of the annular plate and is mounted in the engaging groove. The rolling bearing retainer according to claim 1, wherein the retaining ring is configured to engage with the retaining ring.
前記係合手段によって連結される前記環状板のピン受け孔は、前記連結ピンの端部に嵌合する嵌合孔部と、この嵌合孔部と同軸に且つその内径よりも大きな内径をもつとともに軸方向の端部側に設けられた第一の凹の段部と、この第一の凹の段部と同軸に且つその内径よりも大きな内径をもつとともに軸方向の端部側に設けられた第二の凹の段部と、を有して形成され、
当該係合手段によって連結される前記連結ピンの端部は、前記嵌合孔部に嵌入される第一の嵌入部と、当該連結ピンの軸方向の端部側に設けられて前記第一の凹の段部に嵌入可能な第二の嵌入部と、を有して形成され、さらに、前記第二の嵌入部は、その外周面に円環状に設けられた係合溝を有して形成されており、
当該係合手段は、前記環状板の第二の凹の段部と、前記連結ピンの係合溝と、この係合溝に装着されるとともに前記環状板の第二の凹の段部に対し前記連結ピンの軸方向に係合する止め輪と、から構成されていることを特徴とする請求項1に記載の転がり軸受用保持器。
The pin receiving hole of the annular plate connected by the engaging means has a fitting hole that fits to the end of the connecting pin, and has an inner diameter that is coaxial with the fitting hole and larger than the inner diameter. And a first concave step provided on the end side in the axial direction, and an inner diameter that is coaxial with the first concave step portion and larger than the inner diameter and provided on the end side in the axial direction. A second concave step, and
The end of the connection pin connected by the engaging means is provided on the first insertion portion inserted in the fitting hole and on the end side in the axial direction of the connection pin. A second fitting portion that can be fitted into the concave step portion, and the second fitting portion is formed to have an engagement groove provided in an annular shape on the outer peripheral surface thereof. Has been
The engaging means includes a second concave step portion of the annular plate, an engagement groove of the connecting pin, and a second concave step portion of the annular plate that is attached to the engagement groove. The rolling bearing retainer according to claim 1, comprising a retaining ring that engages in an axial direction of the connecting pin.
前記係合手段によって連結される前記環状板のピン受け孔は、前記連結ピンの端部に嵌合する嵌合孔部と、この嵌合孔部と同軸に且つその内径よりも大きな内径をもつとともに軸方向の端部側に設けられた凹の段部と、を有して形成され、
当該係合手段によって連結される前記連結ピンの端部は、その外周面に円環状に設けられた係合溝を有して形成され、
当該係合手段は、前記環状板の凹の段部と、前記連結ピンの係合溝と、この係合溝に装着されるとともに前記環状板の凹の段部に対し前記連結ピンの軸方向に係合する止め輪と、から構成されていることを特徴とする請求項2に記載の転がり軸受用保持器。
The pin receiving hole of the annular plate connected by the engaging means has a fitting hole that fits to the end of the connecting pin, and has an inner diameter that is coaxial with the fitting hole and larger than the inner diameter. And a concave step portion provided on the end side in the axial direction.
The end of the connecting pin connected by the engaging means is formed with an engaging groove provided in an annular shape on the outer peripheral surface thereof,
The engaging means includes a concave step portion of the annular plate, an engaging groove of the connecting pin, and an axial direction of the connecting pin with respect to the concave step portion of the annular plate and is mounted in the engaging groove. A retainer for a rolling bearing according to claim 2, wherein the retainer is engaged with the retaining ring.
前記環状板のピン受け孔は、前記連結ピンの端部に嵌合する嵌合孔部と、この嵌合孔部と同軸に且つその内径よりも大きな内径をもつとともに軸方向の端部側に設けられる凹の段部と、を有して形成され、
前記連結ピンの一端側は、その外周面に円環状に設けられた係合溝を有して形成され、前記一端側の係合手段は、前記環状板の凹の段部と、前記連結ピンの係合溝と、この係合溝に装着されるとともに前記環状板の凹の段部に対し前記連結ピンの軸方向で係合する止め輪と、から構成されており、
前記連結ピンの他端側は、当該連結ピンの軸方向の端部側に設けられて前記凹の段部に嵌入可能且つその内径よりも小さな外径をもって径方向に張り出す鍔部を有して形成され、前記他端側の係合手段は、前記環状板の凹の段部と、前記連結ピンの鍔部と、から構成されている請求項2に記載の転がり軸受用保持器。
The pin receiving hole of the annular plate has a fitting hole portion that fits into an end portion of the connecting pin, an inner diameter that is coaxial with the fitting hole portion and larger than the inner diameter thereof, and on the end side in the axial direction. A recessed step provided, and
One end side of the connection pin is formed to have an annular engagement groove provided on the outer peripheral surface thereof, and the engagement means on the one end side includes a concave step portion of the annular plate, and the connection pin And a retaining ring that is attached to the engagement groove and engages with the concave step portion of the annular plate in the axial direction of the connection pin,
The other end side of the connecting pin has a flange portion that is provided on the end side in the axial direction of the connecting pin, can be fitted into the concave stepped portion, and protrudes in the radial direction with an outer diameter smaller than the inner diameter. The rolling bearing retainer according to claim 2, wherein the engaging means on the other end side includes a concave step portion of the annular plate and a flange portion of the connecting pin.
前記連結ピンは、前記ピン受け孔の嵌合孔部に、締め代をもって嵌入されていることを特徴とする請求項5または6に記載の転がり軸受用保持器。   The rolling bearing retainer according to claim 5 or 6, wherein the connecting pin is fitted into a fitting hole portion of the pin receiving hole with a tightening margin. 請求項1〜6のいずれか一項に記載の転がり軸受用保持器を備えていることを特徴とする転がり軸受。   A rolling bearing comprising the rolling bearing cage according to any one of claims 1 to 6.
JP2006190793A 2006-07-11 2006-07-11 Rolling bearing cage and rolling bearing Pending JP2008019921A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013036496A (en) * 2011-08-04 2013-02-21 Jtekt Corp Pin type retainer, roller assembly, rolling device and roller bearing
WO2017159477A1 (en) * 2016-03-17 2017-09-21 Ntn株式会社 Tapered roller bearing
JP2017166624A (en) * 2016-03-17 2017-09-21 Ntn株式会社 Conical roller bearing
JP2017166625A (en) * 2016-03-17 2017-09-21 Ntn株式会社 Conical roller bearing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013036496A (en) * 2011-08-04 2013-02-21 Jtekt Corp Pin type retainer, roller assembly, rolling device and roller bearing
WO2017159477A1 (en) * 2016-03-17 2017-09-21 Ntn株式会社 Tapered roller bearing
JP2017166624A (en) * 2016-03-17 2017-09-21 Ntn株式会社 Conical roller bearing
JP2017166625A (en) * 2016-03-17 2017-09-21 Ntn株式会社 Conical roller bearing

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