JP2014020392A - Assembly method for roller bearing - Google Patents

Assembly method for roller bearing Download PDF

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JP2014020392A
JP2014020392A JP2012156596A JP2012156596A JP2014020392A JP 2014020392 A JP2014020392 A JP 2014020392A JP 2012156596 A JP2012156596 A JP 2012156596A JP 2012156596 A JP2012156596 A JP 2012156596A JP 2014020392 A JP2014020392 A JP 2014020392A
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Prior art keywords
inner ring
temporary fixing
rollers
cage
roller bearing
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JP6019851B2 (en
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Takeshi Miyaji
武志 宮地
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JTEKT Corp
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JTEKT Corp
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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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/04—Preventing damage to bearings during storage or transport thereof or when otherwise out of use
    • 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
    • F16C19/34—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 both radial and axial load
    • F16C19/36—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 both radial and axial load with a single row of rollers
    • F16C19/364—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 both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C33/51—Cages for rollers or needles formed of unconnected members
    • F16C33/513—Cages for rollers or needles formed of unconnected members formed of arcuate segments for carrying one or more rollers
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an assembly method for a roller bearing capable of securing the integration of cage segments, rollers and an inner ring to allow easy assembly.SOLUTION: The assembly method for a tapered roller bearing includes a step of temporarily fixing a body part 11a of a temporary fixture 11 to an end face 3d of an inner ring 3 in the state of protruding an inclined part 11b of the temporary fixture 11 radially outward of the inner ring 3, a step of annularly arranging cage segments 6 on the outer periphery of the inner ring 3, a step of inserting tapered rollers 4 into pockets of the cage segments 6, a step of inserting temporarily fixing pins 12 into first and second hole portions 21a, 22a formed in first and second rim parts 21, 22, respectively, and through-holes 4a passing through the tapered rollers 4 in the axial direction to fix the temporarily fixing pins 12 to the temporary fixture 11, and a step of fitting the inner ring 3 into an outer ring so that the outer raceway surface of the outer ring has external contact with the tapered rollers.

Description

本発明は、複数の保持器セグメントを環状に配列した分割保持器を備えたころ軸受の組立方法に関する。   The present invention relates to a method for assembling a roller bearing including a split cage in which a plurality of cage segments are arranged in an annular shape.

従来、水平軸プロペラ式の風力発電装置においては、ブレードを取り付ける主軸を回転自在に支持するために、転がり軸受が用いられている。近年、風力発電装置の大型化に伴って、主軸の直径が数メートルを超えることもあり、このような大型の主軸を支持するために、転がり軸受も大型化している。大型の転がり軸受に用いられる保持器として、合成樹脂製の保持器が用いられる場合がある。この合成樹脂製の保持器は、溶接で組み立てる金属製の保持器に較べて、軽量であるとともに精度も確保し易いという利点がある。しかし、直径の大きい合成樹脂製の保持器を、射出成形で一体成形することは困難である。そこで、周方向に複数に分割した分割保持器が用いられている（例えば特許文献１参照）。この分割保持器は、複数の保持器セグメントを環状に配列したものである。   Conventionally, in a horizontal axis propeller-type wind power generator, a rolling bearing is used to rotatably support a main shaft to which a blade is attached. In recent years, with the increase in size of wind power generators, the diameter of the main shaft may exceed several meters, and in order to support such a large main shaft, the rolling bearing is also increased in size. As a cage used for a large-sized rolling bearing, a synthetic resin cage may be used. This cage made of synthetic resin is advantageous in that it is lightweight and easy to ensure accuracy compared to a metal cage assembled by welding. However, it is difficult to integrally mold a cage made of a synthetic resin having a large diameter by injection molding. Therefore, a split cage that is divided into a plurality in the circumferential direction is used (see, for example, Patent Document 1). This divided cage is formed by annularly arranging a plurality of cage segments.

図７は従来の保持器セグメントの一例を示す要部斜視図であり、図８は従来の保持器セグメントを用いた円すいころ軸受を示す要部断面図である。この保持器セグメント１００は、所定間隔離して対向させた一対の第１，第２リム部１０１，１０２と、この第１，第２リム部１０１，１０２の間に架設した複数の柱部１０３とを有しており、隣り合う柱部１０３と第１，第２リム部１０１，１０２とによって囲まれる空間を、転動体としての円すいころ１１３（図８参照）を収容するポケット１０４として構成している。前記保持器セグメント１００は、射出成形によって成形された合成樹脂製のものである。   FIG. 7 is a main part perspective view showing an example of a conventional cage segment, and FIG. 8 is a main part sectional view showing a tapered roller bearing using the conventional cage segment. The cage segment 100 includes a pair of first and second rim portions 101 and 102 opposed to each other at a predetermined interval, and a plurality of column portions 103 installed between the first and second rim portions 101 and 102. The space surrounded by the adjacent pillar portion 103 and the first and second rim portions 101, 102 is configured as a pocket 104 that accommodates a tapered roller 113 (see FIG. 8) as a rolling element. Yes. The cage segment 100 is made of a synthetic resin molded by injection molding.

円すいころ軸受１１０は、外輪１１１と内輪１１２との間に複数の円すいころ１１３を配列し、各円すいころ１１３を、複数の前記保持器セグメント１００からなる分割保持器１２０によって保持している。内輪１１２の外周には、各円すいころ１１３が転動する軌道面１１２ａが形成されており、この軌道面１１２ａを挟んで、円すいころ１１３の端面が接触する大鍔部１１２ｂと小鍔部１１２ｃとが設けられている。
前記円すいころ軸受１１０は、例えば、各保持器セグメント１００を、内輪１１２の外周に沿って環状に配列し、各保持器セグメント１００のポケット１０４に円すいころ１１３を順次挿入した後、内輪１１２を各保持器セグメント１００及び円すいころ１１３とともに、予めハウジングに装着された外輪１１１に嵌め込むことにより組み立てられる。 In the tapered roller bearing 110, a plurality of tapered rollers 113 are arranged between the outer ring 111 and the inner ring 112, and each tapered roller 113 is held by a divided cage 120 including a plurality of the cage segments 100. A raceway surface 112a on which each tapered roller 113 rolls is formed on the outer periphery of the inner ring 112, and a large collar portion 112b and a small collar portion 112c with which the end surface of the tapered roller 113 comes into contact with the raceway surface 112a. Is provided.
In the tapered roller bearing 110, for example, the cage segments 100 are arranged in an annular shape along the outer periphery of the inner ring 112, and after the tapered rollers 113 are sequentially inserted into the pockets 104 of the cage segments 100, the inner rings 112 are moved to the respective tapered portions. The cage segment 100 and the tapered roller 113 are assembled together by being fitted into an outer ring 111 previously mounted on the housing.

ヨーロッパ特許公報ＥＰ２２６４３２５（Ａ１）European Patent Publication EP 2264325 (A1)

従来の円すいころ軸受１１０は、内輪１１２を外輪１１１に嵌め込む前の状態において、各保持器セグメント１００同士は分離された状態で内輪１１２の外周面に配列されていため、保持器セグメント１００が円すいころ１０４とともに内輪１１２から脱落し易い。このため、内輪１１２を各保持器セグメント１００及び円すいころ１１３とともに、ハウジングに装着された外輪１１１に嵌め込む作業が困難となり、円すいころ軸受１１０を組み立てるのに多くの工数を要するという問題があった。
本発明は、前記問題点に鑑みてなされたものであり、保持器セグメント、ころ及び内輪の一体性を確保することができ、容易に組み立てることができるころ軸受の組立方法を提供することを目的とする。 Since the conventional tapered roller bearing 110 is arranged on the outer peripheral surface of the inner ring 112 in a state in which the cage segments 100 are separated from each other before the inner ring 112 is fitted into the outer ring 111, the cage segment 100 is tapered. It is easy to drop off from the inner ring 112 together with the rollers 104. Therefore, it is difficult to fit the inner ring 112 into the outer ring 111 mounted on the housing together with the cage segments 100 and the tapered rollers 113, and there is a problem that many man-hours are required to assemble the tapered roller bearing 110. .
The present invention has been made in view of the above problems, and an object of the present invention is to provide a roller bearing assembling method that can ensure the integrity of the cage segment, the roller, and the inner ring and can be easily assembled. And

本発明のころ軸受の組立方法は、外輪と、内輪と、前記外輪に形成された外軌道面と前記内輪に形成された内軌道面との間に転動自在に配置された複数のころと、各ころを保持するとともに周方向に複数に分割されている分割保持器と、を備え、前記分割保持器は、軸方向に所定間隔離して対向させた第１，第２リム部と、この第１，第２リム部の間に架設した複数の柱部とを有し、隣り合う柱部と前記第１，第２リム部とによって囲まれる空間を、前記ころを収容するポケットとして構成している複数の合成樹脂製の保持器セグメントを、周方向に沿って環状に配列してなるころ軸受の組立方法であって、前記内輪の径方向外方に仮固定具の一端部を突出させた状態で、当該仮固定具の他端部を前記内輪の端面に仮固定する工程と、前記内輪の外周に前記各保持器セグメントを環状に配列する工程と、前記各保持器セグメントのポケットに前記ころを挿入する工程と、前記第１，第２リム部にそれぞれ形成された第１，第２孔部、及び前記ころを軸方向に貫通する貫通孔に、仮固定ピンを挿入し、当該仮固定ピンを前記仮固定具に仮固定する工程と、前記外輪の外軌道面が前記各ころに外接するように、前記内輪を前記外輪に嵌め込む工程と、を含むことを特徴とする。   An assembly method for a roller bearing according to the present invention includes an outer ring, an inner ring, a plurality of rollers that are rotatably arranged between an outer raceway surface formed on the outer ring and an inner raceway surface formed on the inner ring. A split cage that holds each roller and is divided into a plurality of portions in the circumferential direction, and the split cage includes first and second rim portions that are spaced apart from each other by a predetermined distance in the axial direction. A plurality of pillars erected between the first and second rim parts, and a space surrounded by the adjacent pillar parts and the first and second rim parts is configured as a pocket for accommodating the rollers. A roller bearing assembly method in which a plurality of cage segments made of synthetic resin are annularly arranged along a circumferential direction, wherein one end portion of a temporary fixture is protruded radially outward of the inner ring. A step of temporarily fixing the other end of the temporary fixing tool to the end surface of the inner ring, A step of annularly arranging the cage segments on the outer periphery, a step of inserting the rollers into the pockets of the cage segments, and first and second formed on the first and second rim portions, respectively. A step of inserting a temporary fixing pin into a hole and a through-hole penetrating the roller in the axial direction, and temporarily fixing the temporary fixing pin to the temporary fixing tool; and an outer raceway surface of the outer ring on each of the rollers A step of fitting the inner ring into the outer ring so as to circumscribe the outer ring.

本発明によれば、内輪の外周に各保持器セグメントを環状に配列し、各保持器セグメントのポケットにころを挿入した状態で、第１，第２リム部の第１，第２孔部及びころの貫通孔に仮固定ピンを挿入することで、保持器セグメントところとを連結することができる。さらに、この連結状態で内輪に仮固定された仮固定具に仮固定ピンを仮固定することで、保持器セグメント、ころ及び内輪の一体性を確保することができる。これにより、各保持器セグメントを環状に配列した内輪を外輪に嵌め込む際に、内輪に添わせた保持器セグメントがころとともに内輪から脱落するのを防止することができるため、ころ軸受を容易に組み立てることができる。   According to the present invention, the cage segments are arranged annularly on the outer periphery of the inner ring, and the rollers are inserted into the pockets of the cage segments, and the first and second hole portions of the first and second rim portions and By inserting a temporary fixing pin into the through hole of the roller, the cage segment can be connected. Further, by temporarily fixing the temporary fixing pin to the temporary fixing tool temporarily fixed to the inner ring in this connected state, the integrity of the cage segment, the roller and the inner ring can be ensured. As a result, when the inner ring in which the cage segments are arranged in an annular shape is fitted into the outer ring, the cage segment attached to the inner ring can be prevented from falling off from the inner ring together with the rollers. Can be assembled.

前記ころ軸受の組立方法は、前記仮固定ピンに形成された雄ねじ部を、前記仮固定具の前記一端部に形成された雌ねじ部に螺合することで、当該仮固定ピンを前記仮固定具に仮固定することが好ましい。この場合、仮固定ピンを仮固定部に容易に仮固定することができるため、ころ軸受をさらに容易に組み立てることができる。   The method of assembling the roller bearing includes screwing a male screw portion formed on the temporary fixing pin into a female screw portion formed on the one end portion of the temporary fixing tool, whereby the temporary fixing pin is connected to the temporary fixing tool. It is preferable to temporarily fix to. In this case, since the temporary fixing pin can be temporarily fixed to the temporary fixing portion, the roller bearing can be assembled more easily.

本発明のころ軸受の組立方法によれば、保持器セグメント、ころ及び内輪の一体性を確保することができるので、ころ軸受を容易に組み立てることができる。   According to the assembly method of the roller bearing of the present invention, the integrity of the cage segment, the roller and the inner ring can be ensured, so that the roller bearing can be easily assembled.

本発明の一実施形態に係る円すいころ軸受を示す要部断面図である。It is principal part sectional drawing which shows the tapered roller bearing which concerns on one Embodiment of this invention. 上記円すいころ軸受の分割保持器を示す概略側面図である。It is a schematic side view which shows the division holder of the said tapered roller bearing. 上記分割保持器の保持器セグメントを示す斜視図である。It is a perspective view which shows the holder | retainer segment of the said division | segmentation holder | retainer. 上記円すいころ軸受の組み立て時に用いられる治具を示す断面図である。It is sectional drawing which shows the jig | tool used at the time of the assembly of the said tapered roller bearing. 上記円すいころ軸受の組立方法を示す要部断面図である。It is principal part sectional drawing which shows the assembly method of the said tapered roller bearing. 上記円すいころ軸受の組立方法を示す要部断面図である。It is principal part sectional drawing which shows the assembly method of the said tapered roller bearing. 従来の保持器セグメントの一例を示す斜視図である。It is a perspective view which shows an example of the conventional holder | retainer segment. 従来の保持器セグメントを用いた円すいころ軸受を示す要部断面図である。It is principal part sectional drawing which shows the tapered roller bearing using the conventional cage | basket segment.

以下、本発明の実施形態について添付図面を参照しながら詳述する。
図１は、本発明の一実施形態に係る円すいころ軸受を示す要部断面図である。本実施形態の円すいころ軸受１は、風力発電装置の主軸を支持する大型のものであり、外輪２と、内輪３と、外輪２と内輪３との間に配列された複数の円すいころ４と、各円すいころ４を保持するとともに周方向に複数に分割された各円すいころ４を保持する分割保持器５とを備えている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of an essential part showing a tapered roller bearing according to an embodiment of the present invention. The tapered roller bearing 1 of the present embodiment is a large-sized one that supports the main shaft of the wind turbine generator, and includes an outer ring 2, an inner ring 3, and a plurality of tapered rollers 4 arranged between the outer ring 2 and the inner ring 3. And a split cage 5 for holding each tapered roller 4 and holding each tapered roller 4 divided into a plurality in the circumferential direction.

外輪２の内周には、円すいころ４が転動するように、円すい面からなる外軌道面２ａが形成されている。内輪３の外周には、外軌道面２ａと対向する位置に円すいころ４が転動するように、円すい面からなる内軌道面３ａが形成されている。また、内輪３の外周には、内軌道面３ａを挟んで径方向外方に突出し、円すいころ４の軸方向両側の端面がそれぞれ接触する大鍔部３ｂと小鍔部３ｃとが形成されている。内輪３には、大鍔部３ｂ側の端面３ｄに開口する雌ねじ部３ｅが軸方向に延びて形成されている。   An outer raceway surface 2a made of a conical surface is formed on the inner periphery of the outer ring 2 so that the tapered rollers 4 roll. An inner raceway surface 3a made of a conical surface is formed on the outer periphery of the inner ring 3 so that the tapered rollers 4 roll at positions facing the outer raceway surface 2a. Further, on the outer periphery of the inner ring 3, there are formed a large collar part 3 b and a small collar part 3 c that protrude radially outward across the inner raceway surface 3 a and contact the end faces on both sides in the axial direction of the tapered rollers 4. Yes. The inner ring 3 is formed with an internally threaded portion 3e that opens in the end surface 3d on the large collar 3b side, extending in the axial direction.

図２は、分割保持器５を示す概略側面図であり、図３はその分割保持器５を構成する保持器セグメント６を示す斜視図である。
分割保持器５は、円弧状に形成された複数の保持器セグメント６を、周方向に沿って環状に配列することによって構成されている。保持器セグメント６は、軸方向に所定間隔離して対向させた第１リム部２１及び第２リム部２２と、この第１，第２リム部２１，２２の相互間に架設した複数の柱部２３とを備えており、隣り合う２つの柱部２３と前記第１，第２リム部２１，２２とによって囲まれる空間を、円すいころ４を収容するポケット２４として構成している。この保持器セグメント６は、射出成形によって一体成形された合成樹脂製のものである。 FIG. 2 is a schematic side view showing the split cage 5, and FIG. 3 is a perspective view showing a cage segment 6 constituting the split cage 5.
The divided cage 5 is configured by arranging a plurality of cage segments 6 formed in an arc shape in an annular shape along the circumferential direction. The cage segment 6 includes a first rim portion 21 and a second rim portion 22 which are opposed to each other with a predetermined spacing in the axial direction, and a plurality of column portions laid between the first and second rim portions 21 and 22. 23, and a space surrounded by the two adjacent column portions 23 and the first and second rim portions 21 and 22 is configured as a pocket 24 that accommodates the tapered roller 4. The cage segment 6 is made of synthetic resin integrally molded by injection molding.

図１及び図３に示すように、円すいころ４には、その軸心と同心状に軸方向に貫通する貫通孔４ａが形成されている。また、第１リム部２１の各ポケット２４に対応する位置には、ポケット２４側の側面に開口する有底の孔からなる第１孔部２１ａが形成されている。さらに、第２リム部２２の前記各第１孔部２１ａに対向する位置には、第２孔部２２ａが軸方向に貫通して形成されている。第１，第２孔部２１ａ，２２ａは、同一の孔径に設定されており、図１に示すように、円すいころ４がポケット２４に収容された状態で、貫通孔４ａと同心状に配置されている。   As shown in FIGS. 1 and 3, the tapered roller 4 is formed with a through hole 4 a that is concentric with the axial center and penetrates in the axial direction. Moreover, the 1st hole part 21a which consists of a bottomed hole opened in the side surface at the side of the pocket 24 is formed in the position corresponding to each pocket 24 of the 1st rim part 21. As shown in FIG. Furthermore, the 2nd hole 22a is penetrated and formed in the axial direction in the position which opposes each said 1st hole 21a of the 2nd rim | limb part 22. As shown in FIG. The first and second hole portions 21a and 22a are set to have the same hole diameter, and are arranged concentrically with the through hole 4a in a state where the tapered roller 4 is accommodated in the pocket 24 as shown in FIG. ing.

図４は、円すいころ軸受１の組み立て時に用いられる治具１０を示す断面図である。この治具１０は、内輪３の大鍔部３ｂ側の端面３ｄに仮固定される仮固定具１１と、この仮固定具１１に仮固定される仮固定ピン１２とを備えている。仮固定具１１は、断面が略への字状に形成された板部材からなり、本体部（他端部）１１ａと、本体部１１ａに対して傾斜している傾斜部（一端部）１１ｂとを有している。   FIG. 4 is a cross-sectional view showing the jig 10 used when the tapered roller bearing 1 is assembled. The jig 10 includes a temporary fixing tool 11 that is temporarily fixed to the end surface 3 d of the inner ring 3 on the large collar portion 3 b side, and a temporary fixing pin 12 that is temporarily fixed to the temporary fixing tool 11. The temporary fixture 11 is made of a plate member having a substantially U-shaped cross section, and includes a main body (other end) 11a and an inclined portion (one end) 11b that is inclined with respect to the main body 11a. have.

仮固定具１１の本体部１１ａには、その厚み方向に貫通する貫通孔１１ａ１が形成されており、この貫通孔１１ａ１にはボルト１３が挿通され、内輪３の雌ねじ部３ｅに螺合される。これにより、本体部１１ａは、内輪３の端面３ｄに仮固定される。傾斜部１１ｂは、本体部１１ａが前記端面３ｄに仮固定された状態で、内輪３の径方向外方に突出するとともに、第２リム部２２に対して軸方向に所定間隔をあけて対向配置される。傾斜部１１ｂには、その厚み方向に貫通する雌ねじ部１１ｂ１が形成されている。   A through-hole 11a1 penetrating in the thickness direction is formed in the main body portion 11a of the temporary fixing tool 11, and a bolt 13 is inserted into the through-hole 11a1 and screwed into the female screw portion 3e of the inner ring 3. As a result, the main body 11 a is temporarily fixed to the end surface 3 d of the inner ring 3. The inclined portion 11b protrudes radially outward of the inner ring 3 in a state where the main body portion 11a is temporarily fixed to the end surface 3d, and is opposed to the second rim portion 22 with a predetermined interval in the axial direction. Is done. The inclined portion 11b is formed with a female screw portion 11b1 penetrating in the thickness direction.

仮固定ピン１２は、基端部に雄ねじ部１２ａが形成されるとともに、雄ねじ部１２ａよりも先端側に円柱状のピン部１２ｂが形成されたボルトからなる。ピン部１２ｂの外径は、円すいころ４の貫通孔４ａの孔径よりも小径であって、かつ第１，第２リム部２１，２２の第１，第２孔部２１ａ，２２ａの孔径と同径に設定されている。ピン部１２ｂは第１，第２孔部２１ａ，２２ａ及び貫通孔４ａに挿入され、雄ねじ部１２ａは仮固定具１１の雌ねじ部１１ｂ１に螺合されるようになっている。その際、仮固定ピン１２が第１，第２孔部２１ａ，２２ａに圧入されることにより、第１，第２リム部２１，２２は仮固定ピン１２に対して連結固定される。また、円すいころ４は、仮固定ピン１２に対して回転自在な状態で連結される。   The temporary fixing pin 12 includes a bolt in which a male screw portion 12a is formed at the base end portion, and a cylindrical pin portion 12b is formed on the tip side of the male screw portion 12a. The outer diameter of the pin portion 12b is smaller than the diameter of the through hole 4a of the tapered roller 4, and is the same as the diameter of the first and second hole portions 21a and 22a of the first and second rim portions 21 and 22. The diameter is set. The pin portion 12b is inserted into the first and second hole portions 21a and 22a and the through hole 4a, and the male screw portion 12a is screwed into the female screw portion 11b1 of the temporary fixing tool 11. At this time, the temporary fixing pin 12 is press-fitted into the first and second hole portions 21 a and 22 a, whereby the first and second rim portions 21 and 22 are connected and fixed to the temporary fixing pin 12. The tapered roller 4 is connected to the temporary fixing pin 12 in a rotatable state.

次に、円すいころ軸受１の組立方法について、図４〜図６を参照しながら説明する。まず、図５（ａ）に示すように、仮固定具１１の傾斜部１１ｂを内輪３の径方向外方に突出させた状態で、本体部１１ａを内輪３の端面３ｄに仮固定する。具体的には、ボルト１３を本体部１１ａの貫通孔１１ａ１を貫通して、内輪３の雌ねじ部３ｅに螺合する。   Next, a method for assembling the tapered roller bearing 1 will be described with reference to FIGS. First, as shown in FIG. 5A, the main body 11 a is temporarily fixed to the end surface 3 d of the inner ring 3 with the inclined portion 11 b of the temporary fixing tool 11 protruding outward in the radial direction of the inner ring 3. Specifically, the bolt 13 passes through the through hole 11a1 of the main body portion 11a and is screwed into the female screw portion 3e of the inner ring 3.

次に、図５（ｂ）に示すように、各保持器セグメント６を、内輪３の外周に沿って環状に配列した後、各保持器セグメント６のポケット２４に円すいころ４を挿入する。この状態で、図６（ａ）に示すように、仮固定ピン１２のピン部１２ｂを、仮固定具１１の軸方向外側から、仮固定具１１の雌ねじ部１１ｂ１、第２リム部２２の第２孔部２２ａ、円すいころ４の貫通孔４ａ、第１リム部２１の第１孔部２１ａの順に挿入し、仮固定ピン１２の雄ねじ部１２ａを仮固定具１１の雌ねじ部１１ｂ１に螺合する。これにより、図４に示すように、仮固定ピン１２は、仮固定具１１に仮固定されるとともに、保持器セグメント６と円すいころ４とが、仮固定具１１及び仮固定ピン１２を介して、内輪３ととともに一体的に連結される。   Next, as shown in FIG. 5B, the cage segments 6 are annularly arranged along the outer circumference of the inner ring 3, and then the tapered rollers 4 are inserted into the pockets 24 of the cage segments 6. In this state, as shown in FIG. 6A, the pin portion 12 b of the temporary fixing pin 12 is moved from the outside in the axial direction of the temporary fixing device 11 to the female screw portion 11 b 1 of the temporary fixing device 11 and the second rim portion 22. The two holes 22a, the through-hole 4a of the tapered roller 4 and the first hole 21a of the first rim part 21 are inserted in this order, and the male screw part 12a of the temporary fixing pin 12 is screwed into the female screw part 11b1 of the temporary fixing tool 11. . Thereby, as shown in FIG. 4, the temporary fixing pin 12 is temporarily fixed to the temporary fixing tool 11, and the cage segment 6 and the tapered roller 4 are connected via the temporary fixing tool 11 and the temporary fixing pin 12. The inner ring 3 and the inner ring 3 are integrally connected.

次に、図６（ｂ）に示すように、外輪２の外軌道面２ａが各円すいころ４に外接するように内輪３を外輪２に嵌め込む。このように内輪３を外輪２に嵌め込んだ後は、仮固定ピン１２の雄ねじ部１２ａと仮固定具１１の雌ねじ部１１ｂ１との螺合を解除し、仮固定ピン１２を仮固定具１１から取り外す。そして最後に、ボルト１３と内輪３の雌ねじ部３ｅとの螺合を解除し、仮固定具１１を内輪３から取り外す。これにより、円すいころ軸受１の組み立てが完了する。   Next, as shown in FIG. 6B, the inner ring 3 is fitted into the outer ring 2 so that the outer raceway surface 2 a of the outer ring 2 circumscribes each tapered roller 4. After the inner ring 3 is thus fitted into the outer ring 2, the screwing of the male screw portion 12 a of the temporary fixing pin 12 and the female screw portion 11 b 1 of the temporary fixing tool 11 is released, and the temporary fixing pin 12 is removed from the temporary fixing tool 11. Remove. Finally, the screw 13 is released from the internal thread 3e of the inner ring 3 and the temporary fastener 11 is removed from the inner ring 3. Thereby, the assembly of the tapered roller bearing 1 is completed.

以上の構成の円すいころ軸受１の組立方法によれば、内輪３の外周に各保持器セグメント６を環状に配列し、各保持器セグメント６のポケット２４に円すいころ４を挿入した状態で、第１，第２リム部２１，２２の第１，第２孔部２１ａ，２２ａ及び円すいころ４の貫通孔４ａに仮固定ピン１２を挿入することで、保持器セグメント６と円すいころ４とを連結することができる。さらに、この連結状態で内輪３に仮固定された仮固定具１１に仮固定ピン１２を仮固定することで、保持器セグメント６、円すいころ４及び内輪３の一体性を確保することができる。これにより、各保持器セグメント６を環状に配列した内輪３を外輪２に嵌め込む際に、一旦内輪３に添わせた保持器セグメント６が円すいころ４とともに内輪３から脱落するのを防止することができるため、円すいころ軸受１を容易に組み立てることができる。   According to the method for assembling the tapered roller bearing 1 having the above configuration, the cage segments 6 are arranged in an annular shape on the outer periphery of the inner ring 3, and the tapered rollers 4 are inserted into the pockets 24 of the cage segments 6. The cage segment 6 and the tapered roller 4 are connected by inserting the temporary fixing pin 12 into the first and second hole portions 21 a and 22 a of the first and second rim portions 21 and 22 and the through hole 4 a of the tapered roller 4. can do. Further, by temporarily fixing the temporary fixing pin 12 to the temporary fixing tool 11 temporarily fixed to the inner ring 3 in this connected state, the integrity of the cage segment 6, the tapered roller 4 and the inner ring 3 can be ensured. Thus, when the inner ring 3 in which the cage segments 6 are arranged in an annular shape is fitted into the outer ring 2, the cage segment 6 once attached to the inner ring 3 is prevented from dropping off from the inner ring 3 together with the tapered rollers 4. Therefore, the tapered roller bearing 1 can be easily assembled.

また、仮固定ピン１２に形成された雄ねじ部１２ａを、仮固定具１１の傾斜部１１ｂに形成された雌ねじ部１１ｂ１に螺合することで、仮固定ピン１２を仮固定具１１に容易に仮固定することができるため、円すいころ軸受１をさらに容易に組み立てることができる。   Further, the male screw portion 12 a formed on the temporary fixing pin 12 is screwed into the female screw portion 11 b 1 formed on the inclined portion 11 b of the temporary fixing device 11, so that the temporary fixing pin 12 can be temporarily attached to the temporary fixing device 11. Since it can be fixed, the tapered roller bearing 1 can be assembled more easily.

本発明は、上記の実施形態に限定されることなく適宜変更して実施可能である。例えば、上記実施形態では、第２リム部２２に形成される第２孔部２２ａは、有底の孔からなるが、貫通孔であってもよい。また、本発明は、円すいころ軸受以外に、円筒ころ軸受にも適用することができる。   The present invention is not limited to the above embodiment and can be implemented with appropriate modifications. For example, in the above embodiment, the second hole portion 22a formed in the second rim portion 22 is a bottomed hole, but may be a through hole. The present invention can also be applied to cylindrical roller bearings in addition to tapered roller bearings.

１：円すいころ軸受（ころ軸受）、２：外輪、２ａ：外軌道面、３：内輪、３ａ：内軌道面、３ｄ：端面、４：円すいころ（ころ）、４ａ：貫通孔、５：分割保持器、６：保持器セグメント、１１：仮固定具、１１ａ：本体部（他端部）、１１ｂ：傾斜部（一端部）、１１ｂ１：雌ねじ部、１２：仮固定ピン、１２ａ：雄ねじ部、２１：第１リム部、２１ａ：第１孔部、２２：第２リム部、２２ａ：第２孔部、２３：柱部、２４：ポケット   1: Tapered roller bearing (roller bearing), 2: outer ring, 2a: outer raceway surface, 3: inner ring, 3a: inner raceway surface, 3d: end face, 4: tapered roller (roller), 4a: through hole, 5: divided Cage, 6: Cage segment, 11: Temporary fixture, 11a: Body part (other end part), 11b: Inclined part (one end part), 11b1: Female screw part, 12: Temporary fixing pin, 12a: Male screw part, 21: First rim part, 21a: First hole part, 22: Second rim part, 22a: Second hole part, 23: Column part, 24: Pocket

Claims (2)

外輪と、内輪と、前記外輪に形成された外軌道面と前記内輪に形成された内軌道面との間に転動自在に配置された複数のころと、各ころを保持するとともに周方向に複数に分割されている分割保持器と、を備え、
前記分割保持器は、軸方向に所定間隔離して対向させた第１，第２リム部と、この第１，第２リム部の間に架設した複数の柱部とを有し、隣り合う柱部と前記第１，第２リム部とによって囲まれる空間を、前記ころを収容するポケットとして構成している複数の合成樹脂製の保持器セグメントを、周方向に沿って環状に配列してなるころ軸受の組立方法であって、
前記内輪の径方向外方に仮固定具の一端部を突出させた状態で、当該仮固定具の他端部を前記内輪の端面に仮固定する工程と、
前記内輪の外周に前記各保持器セグメントを環状に配列する工程と、
前記各保持器セグメントのポケットに前記ころを挿入する工程と、
前記第１，第２リム部にそれぞれ形成された第１，第２孔部、及び前記ころを軸方向に貫通する貫通孔に、仮固定ピンを挿入し、当該仮固定ピンを前記仮固定具に仮固定する工程と、
前記外輪の外軌道面が前記各ころに外接するように、前記内輪を前記外輪に嵌め込む工程と、を含むころ軸受の組立方法。 An outer ring, an inner ring, a plurality of rollers arranged to roll freely between an outer raceway surface formed on the outer ring and an inner raceway surface formed on the inner ring, and holding each roller and circumferentially A plurality of divided cages,
The split cage includes first and second rim portions that are spaced apart from each other by a predetermined distance in the axial direction, and a plurality of column portions that are laid between the first and second rim portions. A plurality of synthetic resin-made cage segments are arranged in a ring shape along the circumferential direction, and the space surrounded by the first and second rim portions is configured as a pocket for accommodating the rollers. A roller bearing assembly method comprising:
Temporarily fixing the other end portion of the temporary fixing tool to the end surface of the inner ring in a state where one end portion of the temporary fixing tool protrudes radially outward of the inner ring;
Arranging the cage segments in an annular shape on the outer periphery of the inner ring;
Inserting the rollers into the pockets of each cage segment;
Temporary fixing pins are inserted into the first and second hole portions respectively formed in the first and second rim portions, and through holes penetrating the rollers in the axial direction, and the temporary fixing pins are inserted into the temporary fixing tool. Temporarily fixing to,
And a step of fitting the inner ring into the outer ring such that an outer raceway surface of the outer ring circumscribes the rollers. 前記仮固定ピンに形成された雄ねじ部を、前記仮固定具の前記一端部に形成された雌ねじ部に螺合することで、当該仮固定ピンを前記仮固定具に仮固定する請求項１に記載のころ軸受の組立方法。   The temporary fixing pin is temporarily fixed to the temporary fixing tool by screwing a male screw portion formed on the temporary fixing pin with a female screw part formed on the one end of the temporary fixing tool. A method for assembling the described roller bearing.
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EP3173645A1 (en) * 2015-11-27 2017-05-31 NTN-SNR Roulements Rolling bearing cage und rolling bearing comprising such a cage
CN112576632A (en) * 2019-09-30 2021-03-30 斯凯孚公司 Mounting tool
CN112576633A (en) * 2019-09-30 2021-03-30 斯凯孚公司 Assembling tool

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JP2007263305A (en) * 2006-03-29 2007-10-11 Ntn Corp Bearing incorporating tool, tapered roller bearing, tapered roller bearing incorporating method, and main shaft supporting structure of wind power generator
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EP3173645A1 (en) * 2015-11-27 2017-05-31 NTN-SNR Roulements Rolling bearing cage und rolling bearing comprising such a cage
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