JPH11201170A - Pin shape cage - Google Patents
Pin shape cageInfo
- Publication number
- JPH11201170A JPH11201170A JP160198A JP160198A JPH11201170A JP H11201170 A JPH11201170 A JP H11201170A JP 160198 A JP160198 A JP 160198A JP 160198 A JP160198 A JP 160198A JP H11201170 A JPH11201170 A JP H11201170A
- Authority
- JP
- Japan
- Prior art keywords
- pin
- side plate
- hollow roller
- bush
- clearance
- 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.)
- Pending
Links
Classifications
-
- 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
- F16C33/52—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers
- F16C33/523—Cages 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
- F16C33/526—Cages 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
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
- F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、転がり軸受のピン
形保持器の改良に係り、特に、圧延機，圧延機用減速
機，ピニオンスタンド，粉砕機等のように大きな振動を
発生する設備で使用される軸受におけるピン破損防止に
好適なピン形保持器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a pin type cage for a rolling bearing, and more particularly to a facility that generates a large vibration such as a rolling mill, a speed reducer for a rolling mill, a pinion stand, a crusher, and the like. The present invention relates to a pin type cage suitable for preventing pin breakage in a used bearing.
【０００２】[0002]
【従来の技術】従来のピン形保持器としては、例えば実
開昭６０−１８２５２５号公報に開示されているものが
ある。図４に示したように、この従来のピン形保持器１
は、ピン２とその両端を支持する側板３，３とで構成さ
れている。ピン２は中空ころ４の軸心部のピン穴４ａを
貫通している。一方の側板３に支持されるピン２の端部
（ピン頭部）２ａは太径になっており、側板３に開けら
れた通し穴３ａに嵌合して溶接で固定され、ピン２の回
り止め及び抜け止めになっている。他方の側板３に支持
される端部２ｂの方はテーパねじ５で側板３に螺合され
ている。2. Description of the Related Art As a conventional pin-shaped retainer, for example, there is one disclosed in Japanese Utility Model Laid-Open Publication No. 60-182525. As shown in FIG. 4, this conventional pin type cage 1
Comprises a pin 2 and side plates 3 and 3 supporting both ends thereof. The pin 2 penetrates a pin hole 4 a in the shaft center of the hollow roller 4. The end (pin head) 2a of the pin 2 supported by one side plate 3 has a large diameter, and is fitted into a through hole 3a opened in the side plate 3 and fixed by welding. Stops and stops. The end 2 b supported by the other side plate 3 is screwed to the side plate 3 with a tapered screw 5.
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記公報に開
示されている従来のピン形保持器１の場合、溶接側のピ
ン頭部２ａの外径と側板３の通し穴３ａの内径との間に
すき間Ｃがあるために、軸受の作動時にころ４がピン２
に衝突したり押圧したりしてピン２に力が作用すると、
強度が低い溶接部の耐久性が問題になるという欠点を有
している。この欠点を改善するには、ピン頭部２ａと側
板の通し穴４ａの嵌合のすき間Ｃをなくさねばならず、
加工精度を厳重に管理する必要があることから、コスト
高になる。However, in the case of the conventional pin type cage 1 disclosed in the above-mentioned publication, the distance between the outer diameter of the pin head 2a on the welding side and the inner diameter of the through hole 3a of the side plate 3 is increased. When the bearing is in operation, the rollers 4
When a force is applied to the pin 2 by colliding or pressing against the
There is a disadvantage that durability of the welded part having low strength becomes a problem. In order to remedy this drawback, the clearance C between the pin head 2a and the through hole 4a of the side plate must be eliminated.
Since the processing accuracy must be strictly controlled, the cost increases.
【０００４】これに対して、精密加工をせずに上記溶接
側のピン頭部２ａと側板の通し穴３ａとの嵌合のすき間
Ｃを無くすか或いはできるだけ小さくする提案が例えば
実公昭５３−４１６４２号（図５参照），実開昭５０−
１５０６５６号（図６参照），実公平６−１３３８０号
（図７参照），実公平１−１８８９１号（図８参照）等
に提案されている。しかしながら、これら従来の他のピ
ン形保持器１にあっては、溶接側のピン頭部２ａと側板
３の通し穴との嵌合すき間をなくすようにはしも、ピン
２自身の強度向上については考慮されていない。つま
り、ピン形保持器１で保持される中空ころ４の強度の点
からその軸心部を貫通するピン穴４ａの径が制約される
ので、必然的にピン２の径も規制されてしまい、ピン２
を太くして強度向上を図ることは難しいという問題があ
る。On the other hand, a proposal has been made to eliminate or minimize the clearance C between the pin head 2a on the welding side and the through hole 3a in the side plate without precision machining, for example, Japanese Utility Model Publication No. 53-41642. No. (see Fig. 5), Shokai 50-
No. 150656 (see FIG. 6), Japanese Utility Model Publication No. 6-13380 (see FIG. 7), and Japanese Utility Model Publication No. 1-18891 (see FIG. 8). However, in these other conventional pin-shaped retainers 1, the strength of the pin 2 itself is improved even if the clearance between the welding-side pin head 2a and the through hole of the side plate 3 is eliminated. Is not taken into account. In other words, the diameter of the pin hole 4a penetrating through the axial center of the hollow roller 4 held by the pin-shaped retainer 1 is restricted from the point of strength, so that the diameter of the pin 2 is necessarily restricted. Pin 2
There is a problem that it is difficult to improve the strength by increasing the thickness.
【０００５】そこで、本発明は、このような従来のピン
形保持器の問題点に着目してなされたものであり、精密
加工を施してピン頭部とこれが嵌合する側板との間のす
き間を無くしたり、ピン自体を太くしたりせずに強度を
向上させることができるピン形保持器を提供することを
目的とする。Accordingly, the present invention has been made in view of such a problem of the conventional pin type cage, and has been subjected to precision machining to provide a clearance between a pin head and a side plate to which the pin head is fitted. It is an object of the present invention to provide a pin-shaped retainer capable of improving strength without removing the pin and making the pin itself thick.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項１に係る本発明は、中空ころのピン穴を貫
通したピンを側板で支持する構造のピン形保持器におい
て、前記中空ころと前記側板とをピンより直径の大きい
係合突部を介して係合せしめたことを特徴とする。According to a first aspect of the present invention, there is provided a pin type retainer having a structure in which a pin passing through a pin hole of a hollow roller is supported by a side plate. The hollow roller and the side plate are engaged via an engagement protrusion having a diameter larger than that of the pin.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。なお、各図において、同一又は相
当部分には同一の符号を付して、重複した説明を省く。Embodiments of the present invention will be described below with reference to the drawings. In each of the drawings, the same or corresponding portions are denoted by the same reference characters, and redundant description will be omitted.
【０００８】図１は第１の実施形態を示す本発明のピン
形保持器１０Ａを装着した円筒ころ軸受の要部断面図で
ある。まず構成を説明すると、このピン形保持器１０Ａ
は、外輪１１ｇと内輪１１ｎとの間に円周等分に配設さ
れている複数の中空ころ４を回転自在に保持するピン１
２と、このピン１２の両端を支持する側板１３，１３
と、ピン１２と側板１３との間に介在してピン１２より
断面積の大きい係合突部を形成するブシュ１４とで構成
されている。FIG. 1 is a sectional view of a main part of a cylindrical roller bearing according to a first embodiment on which a pin type retainer 10A of the present invention is mounted. First, the configuration will be described.
Is a pin 1 that rotatably holds a plurality of hollow rollers 4 that are equally spaced around the circumference between the outer ring 11g and the inner ring 11n.
2 and side plates 13, 13 supporting both ends of the pin 12.
And a bushing 14 interposed between the pin 12 and the side plate 13 to form an engaging projection having a larger sectional area than the pin 12.
【０００９】前記ピン１２は一様な太さをもち、中空こ
ろ４の軸心部のピン穴４ａをすき間Ｈを保って貫通して
いる。前記側板１３は円環状で、ころ軸受の外輪１１ｇ
の端部と内輪１１ｎの端部との間に形成される円環状の
すき間空間に配設される。側板１３の円環状の平面に
は、ピン１２の両端に固定されたブシュ１４と係合する
複数個の貫通穴がブシュ係合穴１３ａとして円周上等間
隔に配設されている。側板の内側平面１３ｂは中空ころ
４の端面４ｂに対向してころ案内面として機能する。The pin 12 has a uniform thickness and penetrates through the pin hole 4a at the shaft center of the hollow roller 4 with a gap H therebetween. The side plate 13 is annular, and the outer ring 11g of the roller bearing is provided.
And an annular gap formed between the end of the inner ring 11n and the end of the inner ring 11n. A plurality of through holes that engage with bushings 14 fixed to both ends of the pin 12 are arranged at equal circumferential intervals on the annular flat surface of the side plate 13 as bushing engagement holes 13a. The inner flat surface 13b of the side plate faces the end surface 4b of the hollow roller 4 and functions as a roller guide surface.
【００１０】前記ブシュ１４は、ピン１２より直径が大
きい円筒部１４ａとその後端に設けたフランジ部１４ｆ
とからなり、両部の軸心を貫通するピン係合穴１４ｃを
有する。その円筒部１４ａの外径面が側板１３の前記ブ
シュ係合穴１３ａに締め代をもって嵌着される。また、
フランジ部１４ｆの段部平面１４ｂが側板１３に当たっ
て軸方向に位置決めされる。こうして側板１３と結合さ
れたブシュ１４は、溶接１５で一体に固定されている。
ピン１２はピン係合穴１４ｃを通してブシュ１４に嵌着
されるとともに、ピン端部とブシュ１４とを溶接１６で
固定し一体にされる。The bush 14 has a cylindrical portion 14a having a diameter larger than that of the pin 12 and a flange portion 14f provided at a rear end thereof.
And a pin engaging hole 14c penetrating through the axis of both parts. The outer diameter surface of the cylindrical portion 14a is fitted into the bush engagement hole 13a of the side plate 13 with a tight allowance. Also,
The step portion flat surface 14b of the flange portion 14f contacts the side plate 13 and is positioned in the axial direction. The bush 14 connected to the side plate 13 in this manner is fixed integrally by welding 15.
The pin 12 is fitted to the bush 14 through the pin engagement hole 14c, and the pin end and the bush 14 are fixed by welding 16 to be integrated.
【００１１】保持ピン１２及び側板１３と一体化される
ブシュ１４における円筒部１４ａの先端部は、側板１３
の内側平面１３ｂより内方へ突出してピン１２より直径
の大きい係合突部Ｔを形成している。その係合突部Ｔが
中空ころ４の端面にピン穴４ａと同心に設けた座ぐり穴
（ブシュ係合穴）４ｃに緩く係合する。The distal end of the cylindrical portion 14a of the bush 14 integrated with the holding pin 12 and the side plate 13 is
And an engagement projection T having a diameter larger than that of the pin 12 is formed so as to protrude inward from the inner flat surface 13b. The engagement protrusion T loosely engages a counterbore hole (bushing engagement hole) 4c provided on the end surface of the hollow roller 4 concentrically with the pin hole 4a.
【００１２】ここで、中空ころ４と、一体化されたピン
１２，側板１３，ブシュ１４との係合すき間の相互関係
について説明する。先ず軸方向のすき間に関して述べ
る。側板１３の内側平面１３ｂと中空ころ４の端面４ｂ
との間の対向すき間δと、ブシュの円筒部１４ａの先端
面１４ｄとこれに対向する前記ころ座ぐり穴（ブシュ係
合穴）の端面４ｄとの間の対向すき間Δとの関係は、δ
＜Δに設定している。Here, the mutual relationship between the hollow rollers 4 and the engagement gaps between the integrated pins 12, side plates 13, and bushings 14 will be described. First, the axial gap will be described. Inner flat surface 13b of side plate 13 and end surface 4b of hollow roller 4
And the opposing gap Δ between the tip end face 14d of the bushing cylindrical portion 14a and the end face 4d of the roller counterbore hole (bushing engaging hole) opposed thereto is represented by δ.
<Δ is set.
【００１３】次に径方向のすき間について述べると、ブ
シュ１４の円筒部１４ａの先端にある係合突部Ｔの外径
面とこれに対向する前記ころ座ぐり穴（ブシュ係合穴）
４ｃの内径面との間の半径方向のすき間ｈと、ピン１２
の外径面とこれに対向する中空ころ４のピン穴４ａの内
径面との間の半径方向のすき間Ｈとの関係は、ｈ＜Ｈに
設定してある。Next, the radial clearance will be described. The outer diameter surface of the engaging projection T at the tip of the cylindrical portion 14a of the bush 14 and the roller counterbore hole (the bush engaging hole) opposed thereto.
4c, the radial clearance h between the inner surface of the
The relationship between the outer diameter surface and the clearance H in the radial direction between the outer diameter surface and the inner diameter surface of the pin hole 4a of the hollow roller 4 opposed to the outer diameter surface is set to h <H.
【００１４】続いて、作用を説明する。このピン形保持
器１０Ａで保持されている中空ころ４は、従来のように
ピン１２の外径面で案内されるものではなく、ピン１２
より直径が大きいブシュ１４の円筒部先端すなわち係合
突部Ｔにより案内される。中空ころ４のピン穴４ａを貫
通するピン１２の外径面と、そのピン穴４ａの内径面と
の間の半径方向のすき間Ｈよりも、ブシュ１４の先端の
係合突部Ｔの外径面とこれに対向するころ座ぐり穴（ブ
シュ係合穴）４ｃの内径面との間の半径方向のすき間ｈ
の方を小さくなるように設定してあるため（ｈ＜Ｈ）、
中空ころ４はピン１２に接触する前に、ブシュの先端の
係合突部Ｔに接触して案内される。そのため、中空ころ
４から作用する力を直径の大きいブシュの円筒部１４ａ
で受けることになり、断面積が小さいピン１２で受ける
ことはない。Next, the operation will be described. The hollow roller 4 held by the pin type retainer 10A is not guided by the outer diameter surface of the pin 12 as in the related art.
It is guided by the tip of the cylindrical portion of the bush 14 having a larger diameter, that is, the engaging projection T. The outer diameter of the engaging projection T at the tip of the bush 14 is smaller than the radial gap H between the outer diameter surface of the pin 12 penetrating the pin hole 4a of the hollow roller 4 and the inner diameter surface of the pin hole 4a. Radial clearance h between the surface and the inner diameter surface of the roller counterbore hole (bushing engagement hole) 4c facing this surface
Is set to be smaller (h <H),
Before contacting the pin 12, the hollow roller 4 comes into contact with the engaging projection T at the tip of the bush and is guided. Therefore, the force acting from the hollow roller 4 is applied to the cylindrical portion 14a of the bush having a large diameter.
, And is not received by the pin 12 having a small cross-sectional area.
【００１５】また、側板１３がブシュ１４と段部平面１
４ｂにおいて密着し、両者１３，１４は軸方向にすき間
なく結合している。しかも、中空ころの端面４ｂに対向
する側板１３の内側平面１３ｂとの間の軸方向のすき間
δが、ブシュ１４の先端面１４ｄに対向する中空ころの
座ぐり穴（ブシュ係合穴）４ｃの端面４ｄとの間の軸方
向のすき間Δより小さく設定されている（δ＜Δ）。そ
のため、ピン形保持器１０Ａが軸方向に動いて中空ころ
４の端面４ｂに衝突した場合も、当該衝突力は側板１３
を介してブシュの段部平面１４ｂで受けることになる。
したがって、側板１３とブシュ１４とを固定している溶
接部１５，１６に直接に力が作用することがない。The side plate 13 is formed of a bush 14 and a stepped flat surface 1.
4b, the two members 13 and 14 are joined together without any gap in the axial direction. In addition, the axial gap δ between the inner surface 13b of the side plate 13 and the end face 4b of the hollow roller is different from that of the counterbore hole (bushing engaging hole) 4c of the hollow roller facing the tip end face 14d of the bush 14. It is set to be smaller than the axial gap Δ with the end face 4d (δ <Δ). Therefore, even when the pin-shaped retainer 10A moves in the axial direction and collides with the end face 4b of the hollow roller 4, the collision force is not applied to the side plate 13a.
Through the step surface 14b of the bush.
Therefore, no force acts directly on the welded portions 15 and 16 that fix the side plate 13 and the bushing 14.
【００１６】かくして、この実施形態によれば、中空こ
ろ４から作用される力を、比較的強度が小さいピン１２
で受けるかわりに、強度の大きいブシュ１４を介して受
けることにより、ピン１２自体の破損や溶接部１５，１
６の破損を確実に防止することができる。Thus, according to this embodiment, the force applied from the hollow rollers 4 is reduced by the pins 12 having relatively small strength.
Instead of receiving the pin 12 through the bushing 14 having high strength, the pin 12 itself may be damaged or the welded portions 15, 1 may be damaged.
6 can be reliably prevented.
【００１７】図２は、第２の実施形態を示す本発明のピ
ン形保持器１０Ｂを装着した円筒ころ軸受の要部断面図
である。このピン形保持器１０Ｂは、ブシュの形状並び
にその側板１３への取付け方が上記第１の実施形態と異
なっている。すなわち、ブシュ２４は円筒状であってフ
ランジ部はない。そして側板１３の中空ころ４の端面４
ｂと対向する内側平面１３ｂに設けた座ぐり穴２１に、
円筒状の一端側を締め代をもって圧入または打ち込みな
どの方法で嵌着することで、ブシュ２４を側板１３に一
体に固定している。そのブシュ２４の他端側は、側板１
３の内側平面１３ｂより突出してピン１２より直径の大
きい円筒状係合突部Ｔを形成している。そのブシュ２４
及び側板１３の軸心をそれぞれ貫通するピン係合穴２４
ｃ，１３ｃにピン１２を挿通し、ピン端を側板１３に溶
接１６で固定することでピン形保持器１０Ｂが形成され
ている。FIG. 2 is a sectional view of a main part of a cylindrical roller bearing according to a second embodiment, to which a pin type retainer 10B of the present invention is mounted. This pin-shaped retainer 10B is different from the first embodiment in the shape of the bush and how to attach it to the side plate 13. That is, the bush 24 is cylindrical and has no flange. And the end face 4 of the hollow roller 4 of the side plate 13
a counterbore 21 provided in the inner flat surface 13b facing
The bush 24 is integrally fixed to the side plate 13 by fitting one end of the cylindrical shape with a method such as press-fitting or driving in with a margin. The other end of the bush 24 is the side plate 1
3, a cylindrical engaging projection T having a diameter larger than that of the pin 12 is formed. The bush 24
And a pin engagement hole 24 penetrating through the axis of the side plate 13 respectively.
The pin-shaped retainer 10B is formed by inserting the pin 12 through c and 13c and fixing the pin end to the side plate 13 by welding 16.
【００１８】前記係合突部Ｔが、中空ころ４の端面４ｂ
にピン穴４ａと同心に設けた座ぐり穴（ブシュ係合穴）
４ｃに、半径方向のすき間ｈを介して緩く係合する点は
図１に示したものと同様である。この場合も、前記半径
方向のすき間ｈは、中空ころ４のピン穴４ａピン１２と
の間の半径方向のすき間Ｈよりも小さくしている。これ
により中空ころ４から作用する力を直径の大きいブシュ
２４で受け、断面積が小さいピン１２の破損を防止して
いる。また、中空ころ４と側板１３との間の軸方向のす
き間δは、中空ころの座ぐり穴４ｃの端面４ｄとブシュ
２４ａとの間の軸方向のすき間Δより小さくして、ピン
形保持器１０Ｂと中空ころ４との衝突力を側板１３で受
け、ピン１２と側板１３との溶接部１６に直接に力が作
用するのを防止している。The engaging protrusion T is formed on the end face 4b of the hollow roller 4.
Counterbore hole (bushing engagement hole) provided concentrically with the pin hole 4a
4c is loosely engaged via a radial gap h as in FIG. Also in this case, the radial gap h is smaller than the radial gap H between the hollow roller 4 and the pin hole 4a pin 12. As a result, the force acting from the hollow roller 4 is received by the bush 24 having a large diameter, and the pin 12 having a small cross-sectional area is prevented from being damaged. The axial clearance δ between the hollow roller 4 and the side plate 13 is smaller than the axial clearance Δ between the end face 4d of the counterbore 4c of the hollow roller and the bush 24a, so that the pin-shaped cage is formed. The side plate 13 receives the collision force between the roller 10B and the hollow roller 4, and prevents the force from directly acting on the welded portion 16 between the pin 12 and the side plate 13.
【００１９】図３は、第３の実施形態を示す本発明のピ
ン形保持器１０Ｃを装着した円筒ころ軸受の要部断面図
である。このピン形保持器１０Ｃの場合は、ブシュは用
いないで、中空ころ４の端面に、ピン１２より大きな外
径をもって軸方向に突出する円筒状係合突部Ｔを設ける
とともに、側板１３の方に当該係合突部Ｔが嵌合する座
ぐり穴３１を設けて構成した点が上記各実施形態とは異
なっている。側板１３の内側平面１３ｂに設けた前記座
ぐり穴３１は、中空ころ４の突起部Ｔと同心である。そ
の座ぐり穴３１に半径方向のすき間ｈおよび軸方向のす
き間δをもたせて中空ころ４の係合突部Ｔを嵌合させ
る。側板１３には座ぐり穴３１と同心にピン係合穴１３
ｃが設けてあり、このピン係合穴１３ｃと中空ころ４の
ピン穴４ａとにピン１２を通した後、ピン１２の両端を
溶接１６により側板１３に固定することでピン形保持器
１０Ｃが形成されている。FIG. 3 is a sectional view of a main part of a cylindrical roller bearing according to a third embodiment, on which a pin type retainer 10C of the present invention is mounted. In the case of this pin-shaped retainer 10C, a bush is not used, and a cylindrical engaging projection T that projects in the axial direction with an outer diameter larger than that of the pin 12 is provided on the end face of the hollow roller 4, and the side plate 13 is The present embodiment is different from the above embodiments in that a counterbore 31 for fitting the engaging protrusion T is provided. The counterbore 31 provided in the inner flat surface 13 b of the side plate 13 is concentric with the projection T of the hollow roller 4. The engaging projection T of the hollow roller 4 is fitted to the counterbore 31 with a clearance h in the radial direction and a clearance δ in the axial direction. The side plate 13 has a pin engagement hole 13 concentric with the counterbore hole 31.
After the pin 12 is passed through the pin engaging hole 13c and the pin hole 4a of the hollow roller 4, the both ends of the pin 12 are fixed to the side plate 13 by welding 16 so that the pin type retainer 10C is provided. Is formed.
【００２０】前記中空ころ４の端部に突設した係合突部
Ｔの外径面と座ぐり穴３１の内径面との間の半径方向の
すき間ｈは、ピン１２の外径面と中空ころ４のピン穴４
ａの内径面との間の半径方向のすき間Ｈよりも小さい。
それゆえ、中空ころ４の両端面に突出させた係合突部Ｔ
で中空ころ４を案内するとともに、中空ころ４に作用す
る力をその係合突部Ｔを介して側板１３で受けることと
なり、ピン１２自身とかピン端の溶接部１６に直接に力
は作用しないから、同じくピン１２自体の破損や溶接部
１６の破損を防止できる。A radial gap h between the outer diameter surface of the engaging projection T protruding from the end of the hollow roller 4 and the inner diameter surface of the counterbore 31 is defined by the outer diameter surface of the pin 12 and the hollow. Pin hole 4 of roller 4
a is smaller than a radial gap H between the inner diameter surface a of FIG.
Therefore, the engagement protrusions T protruding from both end surfaces of the hollow roller 4
In addition to guiding the hollow rollers 4, the force acting on the hollow rollers 4 is received by the side plate 13 via the engaging projections T, and no force acts directly on the pin 12 itself or the welded portion 16 at the pin end. Accordingly, damage to the pin 12 itself and damage to the welded portion 16 can be prevented.
【００２１】なお、上記各実施形態では、本発明のピン
形保持器を適用する転がり軸受として円筒ころ軸受を例
に挙げて説明したが、これに限られず、本発明は円すい
ころ軸受，自動調心ころ軸受のピン形保持器にも好適に
適用でき、円筒ころ軸受の場合と同様の効果が得られ
る。In each of the above embodiments, a cylindrical roller bearing has been described as an example of a rolling bearing to which the pin type cage of the present invention is applied. However, the present invention is not limited to this. The present invention can be suitably applied to a pin type cage of a roller bearing, and the same effect as that of a cylindrical roller bearing can be obtained.
【００２２】[0022]
【発明の効果】以上説明したように、本発明によれば、
中空ころからの作用力をピンより直径の大きい係合突部
を介して受け止め、ピン自体やピンと側板との溶接部に
直接に負荷させることがないから、ピンの破損や溶接部
の破損を効果的に防止することができる。As described above, according to the present invention,
The acting force from the hollow roller is received through the engaging projection with a diameter larger than that of the pin, and there is no direct load on the pin itself or the weld between the pin and the side plate. Can be prevented.
【００２３】しかも、ピン自体を複雑な形状にしたり、
断面積を大きいものにする必要がなく、且つ加工精度を
厳密に管理する必要もないから低コストである。In addition, the pin itself may have a complicated shape,
The cost is low because there is no need to increase the cross-sectional area and there is no need to strictly control the processing accuracy.
【図１】本発明のピン形保持器の第１の実施形態の断面
図である。FIG. 1 is a cross-sectional view of a first embodiment of a pin type retainer of the present invention.
【図２】本発明のピン形保持器の第２の実施形態の断面
図である。FIG. 2 is a cross-sectional view of a pin-shaped retainer according to a second embodiment of the present invention.
【図３】本発明のピン形保持器の第３の実施形態の断面
図である。FIG. 3 is a cross-sectional view of a pin-shaped retainer according to a third embodiment of the present invention.
【図４】従来のピン形保持器の断面図である。FIG. 4 is a sectional view of a conventional pin type cage.
【図５】従来の他のピン形保持器の断面図である。FIG. 5 is a sectional view of another conventional pin type cage.
【図６】従来の他のピン形保持器の断面図である。FIG. 6 is a cross-sectional view of another conventional pin type cage.
【図７】従来の他のピン形保持器の断面図である。FIG. 7 is a cross-sectional view of another conventional pin type cage.
【図８】従来の他のピン形保持器の断面図である。FIG. 8 is a sectional view of another conventional pin type cage.
２ ピン ４ 中空ころ ４ａ ピン穴 １０Ａ ピン形保持器 １０Ｂ ピン形保持器 １０Ｃ ピン形保持器 １２ ピン １３ 側板 Ｔ 係合突部 2 pin 4 hollow roller 4a pin hole 10A pin type cage 10B pin type cage 10C pin type cage 12 pin 13 side plate T engaging projection
Claims (1)
で支持する構造のピン形保持器において、前記中空ころ
と前記側板とをピンより直径の大きい係合突部を介して
係合せしめたことを特徴とするピン形保持器。1. A pin type retainer having a structure in which a pin passing through a pin hole of a hollow roller is supported by a side plate, wherein the hollow roller and the side plate are engaged via an engaging projection having a diameter larger than that of the pin. A pin-shaped retainer characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP160198A JPH11201170A (en) | 1998-01-07 | 1998-01-07 | Pin shape cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP160198A JPH11201170A (en) | 1998-01-07 | 1998-01-07 | Pin shape cage |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005071001A Division JP2005195181A (en) | 2005-03-14 | 2005-03-14 | Pin-like holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11201170A true JPH11201170A (en) | 1999-07-27 |
Family
ID=11506032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP160198A Pending JPH11201170A (en) | 1998-01-07 | 1998-01-07 | Pin shape cage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11201170A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10031427A1 (en) * | 2000-06-28 | 2002-01-17 | Skf Gmbh | Cage for roller bearing comprises two disks connected by bolts, each of which runs through center of roller and is connected to each disk by sleeve mounted in bore in disk and which is press-fitted over bolt |
| DE112004000693B4 (en) * | 2003-05-12 | 2008-11-13 | Nsk Ltd. | Roller bearing cage |
| WO2012068253A3 (en) * | 2010-11-17 | 2012-09-27 | Johnson Crushers International | Roller bearing method and apparatus |
| CN114483793A (en) * | 2022-01-28 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Bearing holding device |
-
1998
- 1998-01-07 JP JP160198A patent/JPH11201170A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10031427A1 (en) * | 2000-06-28 | 2002-01-17 | Skf Gmbh | Cage for roller bearing comprises two disks connected by bolts, each of which runs through center of roller and is connected to each disk by sleeve mounted in bore in disk and which is press-fitted over bolt |
| DE10031427C2 (en) * | 2000-06-28 | 2003-09-25 | Skf Gmbh | Cage for a rolling bearing |
| DE112004000693B4 (en) * | 2003-05-12 | 2008-11-13 | Nsk Ltd. | Roller bearing cage |
| US7883273B2 (en) | 2003-05-12 | 2011-02-08 | Nsk Ltd. | Cage for roller bearing |
| WO2012068253A3 (en) * | 2010-11-17 | 2012-09-27 | Johnson Crushers International | Roller bearing method and apparatus |
| CN114483793A (en) * | 2022-01-28 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Bearing holding device |
| CN114483793B (en) * | 2022-01-28 | 2024-04-23 | 中国铁建重工集团股份有限公司 | Bearing holding device |
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