JP4529292B2 - Bearing assembly method and structure - Google Patents

Bearing assembly method and structure Download PDF

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Publication number
JP4529292B2
JP4529292B2 JP2001016906A JP2001016906A JP4529292B2 JP 4529292 B2 JP4529292 B2 JP 4529292B2 JP 2001016906 A JP2001016906 A JP 2001016906A JP 2001016906 A JP2001016906 A JP 2001016906A JP 4529292 B2 JP4529292 B2 JP 4529292B2
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bearing
diameter
shaft
pressing member
recess
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JP2002221233A (en
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浩平 明石
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Isuzu Motors Ltd
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Isuzu Motors Ltd
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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
    • F16C41/045—Devices for provisionally retaining needles or rollers in a bearing race before mounting of the bearing on a shaft
    • 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
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • 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
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • F16C19/463—Needle bearings with one row or needles consisting of needle rollers held in a cage, i.e. subunit without race rings
    • 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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or bearings
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii
    • F16C2240/80—Pitch circle diameters [PCD]
    • F16C2240/82—Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD
    • F16C2240/84—Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD with full complement of balls or rollers, i.e. sum of clearances less than diameter of one rolling element
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Mounting Of Bearings Or Others (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、ベアリングの組付方法及び構造に係り、特に、車両の変速機における入力軸と出力軸とを互いに相対回転可能に連結するためのベアリングの組付方法及び構造に関するものである。
【０００２】
【従来の技術】
まず、図７を用いて、車両の変速機の概略を説明する。
【０００３】
図に示す変速機は、所謂、常時かみ合い式の手動変速機であり、入力軸１０と、入力軸１０に対して相対回転可能に連結された出力軸２０と、入力軸１０及び出力軸２０と平行に配置された副軸４５とがミッションケース４６内に収容されている。
【０００４】
入力軸１０には５速メインギヤを兼ねる入力ギヤ４７が設けられており、入力ギヤ４７の右側にはスプライン形状のドグ４９が固設されている。
【０００５】
副軸４５には、入力軸１０の入力ギヤ４７と螺合する入力カウンタギヤ５０と、４速カウンタギヤ５１と、３速カウンタギヤ５２と、２速カウンタギヤ５３と、１速カウンタギヤ５４と、リバースカウンタギヤ５５とが固設されている。更に、副軸４５には、６速カウンタギヤ５６が副軸４５に対して相対回転可能に設けられており、６速カウンタギヤ５６の右側にはスプライン形状のドグ５７が固設されている。副軸４５の端部にはスプライン形状のハブ５９が固設されており、ハブ５９の外周部には、軸方向に移動して６速カウンタギヤ５６のドグ５７とハブ５９とを噛合接続できるスリーブ６０が設けられている。
【０００６】
出力軸２０には、副軸４５の各カウンタギヤ５１〜５４とそれぞれ噛合する４速メインギヤ６１、３速メインギヤ６２、２速メインギヤ６３及び１速メインギヤ６４と、リバースカウンタギヤ５５とアイドルギヤ６５を介して噛合するリバースメインギヤ６６とが、それぞれ相対回転可能に設けられている。各メインギヤ６１〜６６の側部にはスプライン形状のドグ７１〜７５が固設されている。また、出力軸２０には、入力軸１０に設けられた入力ギヤ４７のドグ４９と４速メインギヤ６１に固設されたドグ７１との間、３速メインギヤ６２のドグ７２と２速メインギヤ６３のドグ７３との間、および１速メインギヤ６４のドグ７４とリバースメインギヤ６６のドグ７５との間に位置してハブ７６〜７８が固設されている。ハブ７６〜７８の外周部には軸方向に移動して、隣接するドグとハブとを噛合接続できるスリーブ８１〜８３が設けられている。
【０００７】
更に、出力軸２０には、副軸４５の６速カウンタギヤ５６と噛合する６速メインギヤ７９が固設されている。
【０００８】
なお、各ハブとドグとの間には、通常の同期機構（図示せず）が設けられている。
【０００９】
そして、スリーブ８１がドグ７１とハブ７６とを噛合接続すると、出力軸２０は１速メインギヤ６１と一体化されて前進１速相当で回転する。同様に、スリーブ８２がドグ７２とハブ７７とを噛合接続すると２速、スリーブ８２がドグ７３とハブ７７とを噛合接続すると３速、スリーブ８３がドグ７４とハブ７８とを噛合接続すると４速、スリーブ８１がドグ４９とハブ７６とを噛合接続すると５速、スリーブ６０がドグ５７とハブ５９とを噛合接続すると６速となる。また、スリーブ８３がドグ７５とハブ７８とを噛合接続すると主軸２０は逆方向に回転する。
【００１０】
次に、図８を用いて、この変速機における入力軸１０と出力軸２０との連結部Ａを説明する。
【００１１】
図８に示すように、入力軸１０の端部には軸方向に窪んだ凹部１１が形成されており、その凹部１１内に出力軸２０の端部に形成された凸部２１が挿入されて連結されている。そして、凹部１１と凸部２１との間には、入力軸１０と出力軸２０とを互いに相対回転可能とすべく、ベアリング９０が組み込まれている。
【００１２】
このベアリング９０は、凹部１１と凸部２１との間で環状に配置された複数のころ９１と、そのころ９１を外側および内側から押さえこむ保持器９２とからなっている。保持器９２は、断面がＭ字状に屈曲した周部によってころ９１を上下から挟み込んでおり、ころ９１が保持器９２から脱落しないようになっている。
【００１３】
【発明が解決しようとする課題】
ところで、近年、この入力軸１０と出力軸２０との連結部に使用するベアリング９０の容量を大きくすることが望まれている。
【００１４】
ベアリングの容量を大きくするためには、ベアリングの外径を大きくする、ころの径を大きくする、ころの数を多くすることが考えられるが、入力軸１０の凹部１１の内径は決まっているため、ベアリングの外径を大きくすることはできない。
【００１５】
そこで、外径を変えずに、容量を大きくしたものとして図２及び図５に示すようなベアリングがある。
【００１６】
図２に示すベアリング３０は、ころ３１と外側保持器３３とからなる。外側保持器３３は、ころ３１を収容すると共にころ３１が外側へ飛び出すことを防止する収容穴３２を有しており、ころ３１は収容穴３２から外側へ飛び出すことはない。しかし、ころ３１は外側保持器３３の内側には自由に移動できる。
【００１７】
このベアリング３０は、図８に示したベアリング９０と比べてころ同士の間隔を小さくでき、ころの数を多くして容量を大きくしたものである。なお、図中、３５はベアリングの組付前にころ３１が内側に脱落することを防ぐ内側仮押え部材である。
【００１８】
また、図５に示すベアリング３０´は、ころ３１のみで形成されたものであり、よりころ３１の数を多くすることができる。なお、図中、３５及び４０は組付前にころ３１を内側及び外側から押さえ込んでころを環状に保持する内側仮押え部材及び外側押え部材である。
【００１９】
しかしながら、このようなベアリング３０及び３０´を入力軸１０と出力軸２０との間に組み付けるために仮押え部材３５，４０を取り外すと、ころ３１が外側保持器３３から脱落したり、ばらばらになってしまうため、組付けが非常に困難で作業性が悪い問題があった。
【００２０】
そこで、本発明の目的は、上記課題を解決し、大容量タイプのベアリングを容易に組付けることができるベアリングの組付方法及び構造を提供することにある。
【００２１】
【課題を解決するための手段】
上記目的を達成するために本発明は、環状に配置された複数のころと、該ころを収容すると共に該ころが外側へ飛び出すことを防止する収容穴を有する円筒形状の外側保持器とからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付けるための組付方法において、上記ベアリングの外側保持器の内方に、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを内側から押さえこむ内側仮押え部材を装着し、該内側仮押え部材が装着されたベアリングを上記第一軸の凹部に収容した後、上記第二軸の凸部を上記凹部内に挿入して、該凸部によって上記内側仮押え部材を押し出し、上記内側仮押え部材を上記凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しい収納スペースに密接させて収納するようにしたものである。
【００２２】
これによれば、内側仮押え部材を装着した状態でベアリングを凹部に収容でき、その後、第二軸の凸部によって内側仮押え部材をベアリングから取り外すことができるため、ころが外側保持器から脱落することがなく、容易かつ迅速に組付けを行うことができる。
【００２３】
また、環状に配置された複数のころからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付けるための組付方法において、上記環状に配置された複数のころの外方に、上記ころを外側から押さえこむ外側仮押え部材を装着すると共に、上記ころの内方に、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを内側から押さえこむ内側仮押え部材を装着し、上記第一軸の凹部の外縁に上記外側仮押え部材を当接させた状態で上記ころ及び内側仮押え部材を上記第一軸の凹部内に押し出して収容した後、上記第二軸の凸部を上記凹部内に挿入して、該凸部によって上記内側仮押え部材を押し出し、上記内側仮押え部材を上記凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しい収納スペースに密接させて収納するようにしたものである。
【００２４】
これによれば、ころだけで形成されるタイプのベアリングについても容易に組付けることができる。
【００２５】
また、上記第一軸及び第二軸は、車両の変速機における入力軸及び出力軸でも良い。
【００２６】
また本発明は、環状に配置された複数のころと、該ころを収容すると共に該ころが外側へ飛び出すことを防止する収容穴を有する円筒形状の外側保持器とからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付ける組付構造において、上記ベアリングの外側保持器の内方に装着され、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを内側から押さえこむ内側仮押え部材と、上記第一軸の凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しく、上記ベアリングと上記凸部が上記凹部内に挿入された状態で上記内側仮押え部材を密接させて収納する収納スペースとを備えたものである。
【００２７】
更に本発明は、環状に配置された複数のころからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付ける組付構造において、上記環状に配置された複数のころの外方に装着され、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを外側から押さえこむ外側仮押え部材と、上記ころの内方に装着され、上記ころを内側から押さえこむ内側仮押え部材と、上記第一軸の凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しく、上記凹部の外縁に上記外側仮押え部材を当接させた状態で上記ころ及び内側仮押え部材を上記凹部内に押し出して収容した後に上記凹部内に挿入される上記凸部によって押し出される上記内側仮押え部材を密接させて収納する収納スペースとを備えたものである。
【００２８】
また、上記第一軸及び第二軸は、車両の変速機における入力軸及び出力軸であっても良い。
【００２９】
【発明の実施の形態】
以下、本発明の好適な一実施形態を添付図面に基づいて詳述する。
【００３０】
図１は、本発明の一実施形態に係るベアリングの組付方法及び構造を示す断面図であり、図２は図１におけるベアリングの拡大斜視図であり、図３はベアリングの展開斜視図である。
【００３１】
図１は、本発明の一実施形態として、図７に示したような車両の変速機における入力軸（第一軸）１０´と出力軸（第二軸）２０´との連結部Ａを示したものであり、入力軸１０´と出力軸２０´とは互いに相対回転可能に連結される。
【００３２】
入力軸１０´の端部には、軸方向に所定深さ窪んだ丸形の凹部１１´が形成されると共に、その凹部１１´の底面１１´ａから連続して、凹部１１´よりも径の小さい丸形の収容スペース１２が形成されている。なお、従来から入力軸１０の端部には、凹部１１を加工するために、予め、素材となる材料に凹部１１よりも径が小さく、かつ深さの深い穴９５を設けている（図８参照）。従って、その穴９５を収容スペース１２として利用するようにすれば、従来の入力軸１０をそのまま用いることができ、新たな加工を行う必要はない。
【００３３】
図中、４７及び４９は入力ギヤ及びドグである。
【００３４】
一方、出力軸２０´の端部には、入力軸１０´の凹部１１´内に挿入される丸形の凸部２１´が形成されている。
【００３５】
そして、入力軸１０´の凹部１１´と出力軸２０´の凸部２１´との間には、入力軸１０´と出力軸２０´とを互いに相対回転可能とすべく、ベアリング３０が組み込まれる。
【００３６】
ベアリング３０は、図２及び図３に示すように、複数の円筒形状のころ３１と、そのころ３１を回転自在に収容すると共にころ３１が外側へ飛び出すことを防止する収容穴３２が周部に形成された円筒形状の外側保持器３３とからなる。
【００３７】
外側保持器３３の収容穴３２は、軸方向の長さが、ころ３１の長さとほぼ等しく、幅が、ころ３１の径よりも所定長さ短く形成されている。
【００３８】
このため、ころ３１を外側保持器３３の内側から収容穴３２に収容すると、ころ３１の一部は外側保持器３３の外方に突出するが、ころ３１が収容穴３２から外側に飛び出すことはない。これに対して、ころ３１は外側保持器３３の内側には自由に移動できる。従って、ころ３１を外側保持器３３の内側から外側へ押さえこんでいない場合、ころ３１はその自重によって収容穴３２から脱落する。
【００３９】
ころ３１を外側保持器３３の全ての収容穴３２に収容すると、ころ３１は環状に配置され、その外接円３６は、入力軸１０´の凹部１１´の内径と等しく、内接円３７は出力軸２０´の凸部２１´の外径と等しくなる。
【００４０】
そして、非使用時（組付前）には、外側保持器３３の内方に、ころ３１を内側から押さえこんで脱落を防止する内側仮押え部材３５が装着される。
【００４１】
この内側仮押え部材３５は、合成樹脂等からなる円筒体であり、その外径は、ころ３１の内接円３７と等しいか若干大きい。また、内側仮押え部材３５には、その軸方向両端部間に渡って延びるスリット３９が形成されており、その径を若干、拡径あるいは縮径することができる。
【００４２】
図１を用いて、このベアリング３０の組付方法を説明する。
【００４３】
まず、ベアリング３０の外側保持器３３の内方に内側仮押え部材３５を装着して、ころ３１が外側保持器３３から周方向外側及び内側のどちらにも脱落しない状態にして、ベアリング３０を入力軸１０´の凹部１１´内に収容する。
【００４４】
次に、出力軸２０´の凸部２１´を凹部１１´と同心に位置させて凹部１１´内に挿入する。そうすると、凸部２１´の外径はころ３１の内接円と等しいので、ころ３１の内方に装着された内側仮押え部材３５は、凸部２１´によって、図において下方に押し出されて、凹部１１´内を底面１１´ａ側に移動する。
【００４５】
凸部２１´を全て凹部１１´内に挿入すると、内側仮押え部材３５は凹部１１´から収容スペース１２内に押し出されて収容され、組付が完了する。
【００４６】
従って、組付後、内側仮押え部材３５は収容スペース１２内に残る。
【００４７】
この組付方法によれば、内側仮押え部材３５を装着した状態でベアリング３０を凹部１１´内に収容し、その後、出力軸２０´の凸部２１´によって内側仮押え部材３５をベアリング３０から取り外すことができるため、ころ３１の内方には、常に内側仮押え部材３５あるいは凸部２１´のどちらかが存在することになり、外側保持器３３から脱落することがない。そのため、容易かつ迅速に組付けを行うことができる。
【００４８】
次に、図４〜図６を用いて、ころのみで形成されるベアリングの組付方法を説明する。
【００４９】
図５及び図６に示すように、このベアリング３０´は、複数の円筒形状のころ３１のみからなる。
【００５０】
非使用時（組付前）には、各ころ３１を環状に配置した状態で保持するために、ころ３１の外方に、ころ３１を外側から押さえこむ外側仮押え部材４０が装着されると共に、ころ３１の内方に、ころ３１を内側から押さえこむ内側仮押え部材３５が装着される。
【００５１】
外側仮押え部材４０及び内側仮押え部材３５は、合成樹脂等からなる円筒体であり、その軸方向両端部間に渡ってそれぞれスリット４１，３９が形成されており、その径を若干、拡径あるいは縮径することができる。
【００５２】
内側仮押え部材３５は、その外径が出力軸２０´の凸部２１´の外径と等しく形成されている。
【００５３】
外側仮押え部材４０は、その内径が入力軸１０´の凹部１１´の径と等しく形成されている。従って、外側仮押え部材４０及び内側仮押え部材３５とによって環状に支持されたころ３１の外接円４３の径は入力軸１０´の凹部１１´の内径と等しく、内接円４２の径は出力軸２０´の凸部２１´の外径と等しい。
【００５４】
このベアリング３０´の組付方法は、図４に示すように、まず、ころ３１の外方に外側仮押え部材４０及び内側仮押え部材３５を装着して、ころ３１を環状に保持した状態で、ベアリング３０´を入力軸１０´の端部に凹部１１´と同心に配置する（図４（ａ）参照）。そうすると、外側仮押え部材４０の内径は凹部１１´の内径と等しいため、外側仮押え部材４０の端面は凹部１１´の外縁に当接した状態になる。その状態で、外側仮押え部材４０を除いて、ころ３１及び内側仮押え部材３５を凹部１１´内に押し出して収容する。
【００５５】
このとき、外側仮押え部材４０の内径よりも小さく、内側仮押え部材３５の外径よりも大きな径を有する丸棒等を外側仮押え部材４０の内側に挿入して、ころ３１及び内側仮押え部材３５を押し出すようにすると良い。
【００５６】
次に、外側仮押え部材４０を除去したら、出力軸２０´の凸部２１´を凹部１１´と同心に位置させて凹部１１´内に挿入する。そうすると、凸部２１´の外径はころ３１の内接円と等しいので、ころ３１の内方に装着された内側仮押え部材３５は、凸部２１´によって押し出されて凹部１１´内を底面１１´ａ側に移動する。
【００５７】
凸部２１´を全て凹部１１´内に挿入すると、内側仮押え部材３５は凹部１１´から、収容スペース１２内に押し出されて収容され組付が完了する。
【００５８】
この組付方法によれば、ころだけで形成されるタイプのベアリングについても、ころ３１がばらばらになることがなく、容易かつ迅速に組付けることができる。
【００５９】
ところで、収容スペース１２の内径に制約はないが、内側仮押え部材３５の外径とほぼ等しく形成すれば、収容スペース１２内に押し出された内側仮押え部材３５が、収容スペース１２と隙間無く収容されるため、組付後に収容スペース１２内で暴れることがない。
【００６０】
仮に、収容スペース１２を内側仮押え部材３５よりも大きく形成し、内側仮押え部材３５が収容スペース１２内で暴れたとしても、内側仮押え部材３５を合成樹脂等で形成すれば、好ましくない騒音が発生することはない。また、収容スペース１２は、内側仮押え部材３５を収容できればよく、丸形に限定はされない。
【００６１】
また、内側仮押え部材３５はベアリング３０の組付後も連結部内に残るものであるので、連結部の条件を考慮して、耐油性や耐熱性等を有する材質が適宜選択される。
【００６２】
また、図１及び図４では、出力軸１０´及び入力軸２０´を縦向きにした状態で組み付ける方法を示しているが、横向きで組み付ける場合にも適応できることは勿論である。
【００６３】
これまで、車両の変速機における入力軸（第一軸）と出力軸（第二軸）との連結部におけるベアリングの組付方法及び構造を説明してきたが、本発明はこの点において限定されず、軸と軸とを互いに相対回転可能に連結する部分であれば適応できるものである。
【００６４】
【発明の効果】
以上要するに本発明によれば、以下に示す如く優れた効果を発揮するものである。
１）大容量タイプのベアリングを容易かつ迅速に組付けることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係るベアリングの組付方法及び構造を示す断面図である。
【図２】図１におけるベアリングの拡大斜視図である。
【図３】図１におけるベアリングの展開斜視図である。
【図４】ころのみで形成されるベアリングの組付方法及び構造を示す断面図である。
【図５】ころのみで形成されるベアリングの拡大斜視図である。
【図６】ころのみで形成されるベアリングの展開斜視図である。
【図７】車両の変速機の概略図である。
【図８】従来の車両の変速機における入力軸と出力軸との連結部を示す断面図である。
【符号の説明】
１０´ 第一軸（入力軸）
１１´ 凹部
１２ 収納スペース
２０´ 第二軸（出力軸）
２１´ 凸部
３０ ベアリング
３１ ころ
３３ 外側保持器
３５ 内側仮押え部材
４０ 外側仮押え部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bearing assembling method and structure, and more particularly, to a bearing assembling method and structure for connecting an input shaft and an output shaft of a vehicle transmission so as to be relatively rotatable with each other.
[0002]
[Prior art]
First, the outline of the transmission of the vehicle will be described with reference to FIG.
[0003]
The transmission shown in the figure is a so-called always-meshing manual transmission, and includes an input shaft 10, an output shaft 20 connected to the input shaft 10 so as to be rotatable relative to the input shaft 10, and the input shaft 10 and the output shaft 20. The auxiliary shaft 45 disposed in parallel is accommodated in the mission case 46.
[0004]
The input shaft 10 is provided with an input gear 47 that also serves as a 5-speed main gear, and a spline-shaped dog 49 is fixed to the right side of the input gear 47.
[0005]
The countershaft 45 includes an input counter gear 50 that is screwed with the input gear 47 of the input shaft 10, a fourth speed counter gear 51, a third speed counter gear 52, a second speed counter gear 53, and a first speed counter gear 54. The reverse counter gear 55 is fixed. Further, the countershaft 45 is provided with a 6-speed counter gear 56 so as to be rotatable relative to the countershaft 45, and a spline-shaped dog 57 is fixed on the right side of the 6-speed counter gear 56. A spline-shaped hub 59 is fixed to the end of the countershaft 45, and the dog 57 of the 6-speed counter gear 56 and the hub 59 can be meshed and connected to the outer periphery of the hub 59 in the axial direction. A sleeve 60 is provided.
[0006]
The output shaft 20 includes a fourth speed main gear 61, a third speed main gear 62, a second speed main gear 63, and a first speed main gear 64 that mesh with the counter gears 51 to 54 of the auxiliary shaft 45, a reverse counter gear 55, and an idle gear 65, respectively. And a reverse main gear 66 meshing with each other are provided so as to be relatively rotatable. Spline-shaped dogs 71 to 75 are fixed to the side portions of the main gears 61 to 66. Further, the output shaft 20 includes a dog 49 of the input gear 47 provided on the input shaft 10 and a dog 71 fixed to the 4-speed main gear 61, and a dog 72 of the 3-speed main gear 62 and a 2-speed main gear 63. Hubs 76 to 78 are fixedly disposed between the dog 73 and between the dog 74 of the first-speed main gear 64 and the dog 75 of the reverse main gear 66. Sleeves 81 to 83 that can move in the axial direction and engage and connect adjacent dogs and hubs are provided on the outer peripheral portions of the hubs 76 to 78.
[0007]
Further, a 6-speed main gear 79 that meshes with the 6-speed counter gear 56 of the auxiliary shaft 45 is fixed to the output shaft 20.
[0008]
A normal synchronization mechanism (not shown) is provided between each hub and the dog.
[0009]
When the sleeve 81 meshes and connects the dog 71 and the hub 76, the output shaft 20 is integrated with the first speed main gear 61 and rotates at the forward first speed. Similarly, the second speed is achieved when the sleeve 82 is engaged with the dog 72 and the hub 77, the third speed when the sleeve 82 is engaged with the dog 73 and the hub 77, and the fourth speed when the sleeve 83 is engaged with the dog 74 and the hub 78. When the sleeve 81 meshes and connects the dog 49 and the hub 76, the fifth speed is achieved. When the sleeve 60 meshes and connects the dog 57 and the hub 59, the sixth speed is achieved. When the sleeve 83 meshes and connects the dog 75 and the hub 78, the main shaft 20 rotates in the reverse direction.
[0010]
Next, the connection part A of the input shaft 10 and the output shaft 20 in this transmission is demonstrated using FIG.
[0011]
As shown in FIG. 8, a concave portion 11 that is recessed in the axial direction is formed at the end of the input shaft 10, and a convex portion 21 that is formed at the end of the output shaft 20 is inserted into the concave portion 11. It is connected. A bearing 90 is incorporated between the concave portion 11 and the convex portion 21 so that the input shaft 10 and the output shaft 20 can be rotated relative to each other.
[0012]
The bearing 90 includes a plurality of rollers 91 arranged in an annular shape between the concave portion 11 and the convex portion 21 and a retainer 92 that holds the rollers 91 from the outside and the inside. The retainer 92 sandwiches the roller 91 from above and below by a peripheral portion whose cross section is bent in an M shape, so that the roller 91 does not fall off the retainer 92.
[0013]
[Problems to be solved by the invention]
Incidentally, in recent years, it has been desired to increase the capacity of the bearing 90 used for the connecting portion between the input shaft 10 and the output shaft 20.
[0014]
In order to increase the capacity of the bearing, it is conceivable to increase the outer diameter of the bearing, increase the diameter of the roller, or increase the number of rollers, but the inner diameter of the recess 11 of the input shaft 10 is determined. The outer diameter of the bearing cannot be increased.
[0015]
Therefore, there is a bearing as shown in FIGS. 2 and 5 in which the capacity is increased without changing the outer diameter.
[0016]
The bearing 30 shown in FIG. 2 includes a roller 31 and an outer cage 33. The outer retainer 33 has a receiving hole 32 that receives the roller 31 and prevents the roller 31 from jumping outward. The roller 31 does not jump out of the receiving hole 32. However, the roller 31 can freely move inside the outer cage 33.
[0017]
Compared with the bearing 90 shown in FIG. 8, this bearing 30 can make the space | interval of rollers small, increases the number of rollers, and enlarged the capacity | capacitance. In the figure, reference numeral 35 denotes an inner temporary holding member that prevents the roller 31 from falling off before the assembly of the bearing.
[0018]
Further, the bearing 30 ′ shown in FIG. 5 is formed by only the rollers 31, and the number of rollers 31 can be increased. In the drawing, reference numerals 35 and 40 denote an inner temporary pressing member and an outer pressing member that hold the rollers in an annular shape by pressing the rollers 31 from the inner side and the outer side before assembly.
[0019]
However, when the temporary holding members 35 and 40 are removed in order to assemble such bearings 30 and 30 ′ between the input shaft 10 and the output shaft 20, the rollers 31 may fall off from the outer cage 33 or be separated. Therefore, there was a problem that assembly was very difficult and workability was poor.
[0020]
Accordingly, an object of the present invention is to solve the above-described problems and provide a bearing assembling method and structure capable of easily assembling a large capacity type bearing.
[0021]
[Means for Solving the Problems]
To accomplish the above object, consists of a plurality of rollers arranged in an annular, outer cage cylindrical shape having an accommodation hole to prevent said rollers pops outward accommodates the rollers In the assembling method for assembling the bearing between the concave portion formed on the first shaft and the convex portion formed on the second shaft, the bearing is inscribed inside the outer cage of the bearing. and it is possible and expanded and contracted having an outer diameter which is enlarged than the diameter of the circle fitted to the inner temporary pressing member Komu pressing the roller from the inside, the bearings in which the inner temporary holding member is mounted after received in the recess of the first shaft, the convex portion of the second shaft is inserted into the recess, extruded the inner temporary pressing member by the convex portion, the inner temporary pressing member continuously in the recess the formed and inner diameter inscribed circle of the bearing It is obtained so as to house by closely diameter equal storage space.
[0022]
According to this, since the bearing can be accommodated in the recess while the inner temporary holding member is mounted, and the inner temporary pressing member can be removed from the bearing by the convex portion of the second shaft, the roller falls off from the outer cage. And can be assembled easily and quickly.
[0023]
Further, in the assembling method for assembling a bearing composed of a plurality of rollers arranged in an annular shape between a concave portion formed on the first shaft and a convex portion formed on the second shaft, the bearing is arranged in the annular shape. outwardly of a plurality of rollers which are, perforated with attaching the outer temporary pressing member Komu pressing the roller from the outside, the inside of the roller, the outer diameter of the diameter larger than the diameter of the inscribed circle of the bearing the rollers and in to and state that expanded and contracted possible and and wearing the inner temporary pressing member Komu pressing the roller from the inside, is brought into contact with the outer temporary pressing member to the outer edge of the recess of the first shaft after the inner temporary pressing member housed extruded into the recess of the first axis, the convex portion of the second shaft is inserted into the recess, extruded the inner temporary pressing member by the convex portion, the inner temporary is a pressing member formed continuously in the recess and an inner diameter of the base It is obtained so as to house by closely equal storage space and the diameter of the inscribed circle of the ring.
[0024]
According to this, it is possible to easily assemble a bearing of a type formed only with rollers.
[0025]
The first shaft and the second shaft may be an input shaft and an output shaft in a vehicle transmission.
[0026]
The present invention includes a plurality of rollers arranged annularly, a bearing consisting of an outer cage of cylindrical shape having an accommodation hole to prevent said rollers pops outward with housing the rollers, the first shaft In the assembly structure to be assembled between the concave portion formed on the second shaft and the convex portion formed on the second shaft, the inner structure is mounted on the inner side of the outer cage of the bearing and is larger than the diameter of the inscribed circle of the bearing. An inner temporary holding member that has an outer diameter that can be expanded and reduced, and that presses the roller from the inside; and an inner diameter that is formed continuously with the concave portion of the first shaft; equal to the diameter of the circle, in which the bearing and the projecting portion has a storage space for housing by close contact with the inner temporary pressing member in a state of being inserted into the recess.
[0027]
Furthermore, the present invention provides an assembly structure in which a bearing composed of a plurality of rollers arranged in an annular shape is assembled between a concave portion formed on a first shaft and a convex portion formed on a second shaft. An outer temporary roller that is mounted on the outer side of the plurality of rollers arranged , has an outer diameter that is larger than the diameter of the inscribed circle of the bearing, can be expanded and reduced, and presses the roller from the outside. a pressing member, is attached to the inside of the roller, an inner temporary pressing member Komu pressing the roller from the inside, the and the inner diameter are formed continuously in the recess of the first shaft and the diameter of the inscribed circle of the bearing equally, the pushed out by the convex portion inserted the rollers and inner temporary holding member above the inner recess after receiving extruded into the recess being in contact with the outer temporary pressing member to the outer edge of the recess housed inside the temporary holding member by tightly Is that a that storage space.
[0028]
The first shaft and the second shaft may be an input shaft and an output shaft in a vehicle transmission.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[0030]
1 is a cross-sectional view showing a bearing assembling method and structure according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view of the bearing in FIG. 1, and FIG. 3 is an exploded perspective view of the bearing. .
[0031]
FIG. 1 shows a connecting portion A between an input shaft (first shaft) 10 ′ and an output shaft (second shaft) 20 ′ in a vehicle transmission as shown in FIG. 7 as an embodiment of the present invention. The input shaft 10 ′ and the output shaft 20 ′ are connected to each other so as to be relatively rotatable.
[0032]
At the end of the input shaft 10 ′, a circular recess 11 ′ having a predetermined depth in the axial direction is formed, and continuous from the bottom surface 11 ′ a of the recess 11 ′, the diameter is smaller than that of the recess 11 ′. A small circular storage space 12 is formed. Conventionally, a hole 95 having a diameter smaller than that of the recess 11 and deeper than that of the recess 11 is provided in advance in the end of the input shaft 10 in order to process the recess 11 (FIG. 8). reference). Therefore, if the hole 95 is used as the accommodation space 12, the conventional input shaft 10 can be used as it is, and it is not necessary to perform a new process.
[0033]
In the figure, 47 and 49 are an input gear and a dog.
[0034]
On the other hand, at the end of the output shaft 20 ′, a round convex portion 21 ′ inserted into the concave portion 11 ′ of the input shaft 10 ′ is formed.
[0035]
A bearing 30 is incorporated between the concave portion 11 ′ of the input shaft 10 ′ and the convex portion 21 ′ of the output shaft 20 ′ so that the input shaft 10 ′ and the output shaft 20 ′ can rotate relative to each other. .
[0036]
As shown in FIGS. 2 and 3, the bearing 30 has a plurality of cylindrical rollers 31 and a housing hole 32 that rotatably accommodates the rollers 31 and prevents the rollers 31 from jumping to the outside. The cylindrical outer cage 33 is formed.
[0037]
The receiving hole 32 of the outer cage 33 is formed such that the axial length is substantially equal to the length of the roller 31 and the width is shorter than the diameter of the roller 31 by a predetermined length.
[0038]
For this reason, when the roller 31 is accommodated in the accommodation hole 32 from the inside of the outer cage 33, a part of the roller 31 protrudes outward of the outer cage 33, but the roller 31 does not jump out of the accommodation hole 32. Absent. In contrast, the roller 31 can freely move inside the outer cage 33. Therefore, when the roller 31 is not pressed from the inner side of the outer cage 33 to the outer side, the roller 31 is dropped from the receiving hole 32 by its own weight.
[0039]
When the rollers 31 are accommodated in all the accommodation holes 32 of the outer cage 33, the rollers 31 are arranged in an annular shape, the circumscribed circle 36 is equal to the inner diameter of the recess 11 'of the input shaft 10', and the inscribed circle 37 is output. It becomes equal to the outer diameter of the convex portion 21 ′ of the shaft 20 ′.
[0040]
When not in use (before assembling), an inner temporary holding member 35 that holds the rollers 31 from the inner side to prevent falling off is attached to the inner side of the outer cage 33.
[0041]
The inner temporary holding member 35 is a cylindrical body made of synthetic resin or the like, and its outer diameter is equal to or slightly larger than the inscribed circle 37 of the roller 31. Further, the inner temporary holding member 35 is formed with a slit 39 extending between both axial end portions thereof, and the diameter thereof can be slightly expanded or reduced.
[0042]
A method for assembling the bearing 30 will be described with reference to FIG.
[0043]
First, the inner temporary holding member 35 is attached to the inner side of the outer cage 33 of the bearing 30 so that the rollers 31 do not fall off from the outer cage 33 either on the outer side or the inner side in the circumferential direction. It is accommodated in the recess 11 'of the shaft 10'.
[0044]
Next, the convex portion 21 ′ of the output shaft 20 ′ is positioned concentrically with the concave portion 11 ′ and inserted into the concave portion 11 ′. Then, since the outer diameter of the convex portion 21 ′ is equal to the inscribed circle of the roller 31, the inner temporary pressing member 35 mounted on the inner side of the roller 31 is pushed downward in the drawing by the convex portion 21 ′. The inside of the recess 11 'moves to the bottom surface 11'a side.
[0045]
When all the convex portions 21 ′ are inserted into the concave portions 11 ′, the inner temporary pressing member 35 is pushed out from the concave portion 11 ′ into the accommodating space 12 and accommodated, and the assembly is completed.
[0046]
Therefore, the inner temporary holding member 35 remains in the accommodation space 12 after assembly.
[0047]
According to this assembling method, the bearing 30 is accommodated in the concave portion 11 ′ with the inner temporary pressing member 35 mounted, and then the inner temporary pressing member 35 is removed from the bearing 30 by the convex portion 21 ′ of the output shaft 20 ′. Since it can be removed, either the inner temporary holding member 35 or the convex portion 21 ′ always exists inside the roller 31, and does not fall off from the outer cage 33. Therefore, assembly can be performed easily and quickly.
[0048]
Next, a method for assembling a bearing formed of only rollers will be described with reference to FIGS.
[0049]
As shown in FIGS. 5 and 6, the bearing 30 ′ includes only a plurality of cylindrical rollers 31.
[0050]
When not in use (before assembling), in order to hold each roller 31 in an annularly arranged state, an outer temporary presser member 40 that presses the roller 31 from the outside is attached to the outside of the roller 31. The inner temporary holding member 35 that holds the roller 31 from the inner side is mounted inside the roller 31.
[0051]
The outer temporary presser member 40 and the inner temporary presser member 35 are cylindrical bodies made of synthetic resin or the like, and slits 41 and 39 are formed between both ends in the axial direction, respectively. Alternatively, the diameter can be reduced.
[0052]
The inner temporary holding member 35 has an outer diameter equal to the outer diameter of the convex portion 21 ′ of the output shaft 20 ′.
[0053]
The outer temporary pressing member 40 has an inner diameter that is equal to the diameter of the concave portion 11 ′ of the input shaft 10 ′. Therefore, the diameter of the circumscribed circle 43 of the roller 31 supported in an annular shape by the outer temporary presser member 40 and the inner temporary presser member 35 is equal to the inner diameter of the concave portion 11 ′ of the input shaft 10 ′, and the diameter of the inscribed circle 42 is output. It is equal to the outer diameter of the convex portion 21 ′ of the shaft 20 ′.
[0054]
As shown in FIG. 4, the bearing 30 ′ is assembled by first attaching the outer temporary pressing member 40 and the inner temporary pressing member 35 to the outside of the roller 31 and holding the roller 31 in an annular shape. The bearing 30 ′ is disposed concentrically with the recess 11 ′ at the end of the input shaft 10 ′ (see FIG. 4A). Then, since the inner diameter of the outer temporary pressing member 40 is equal to the inner diameter of the concave portion 11 ′, the end surface of the outer temporary pressing member 40 is in contact with the outer edge of the concave portion 11 ′. In this state, except for the outer temporary pressing member 40, the rollers 31 and the inner temporary pressing member 35 are pushed into the recess 11 'and housed.
[0055]
At this time, a round bar or the like having a diameter smaller than the inner diameter of the outer temporary pressing member 40 and larger than the outer diameter of the inner temporary pressing member 35 is inserted into the outer temporary pressing member 40, and the roller 31 and the inner temporary pressing member are inserted. The member 35 may be pushed out.
[0056]
Next, when the outer temporary holding member 40 is removed, the convex portion 21 ′ of the output shaft 20 ′ is inserted concentrically with the concave portion 11 ′ and inserted into the concave portion 11 ′. Then, since the outer diameter of the convex portion 21 ′ is equal to the inscribed circle of the roller 31, the inner temporary pressing member 35 mounted on the inner side of the roller 31 is pushed out by the convex portion 21 ′ and the inside of the concave portion 11 ′ is bottomed. Move to the 11'a side.
[0057]
When all the convex portions 21 ′ are inserted into the concave portions 11 ′, the inner temporary pressing member 35 is pushed out from the concave portions 11 ′ into the accommodating space 12 and is assembled, and the assembly is completed.
[0058]
According to this assembling method, a roller 31 formed of only rollers can be easily and quickly assembled without the rollers 31 falling apart.
[0059]
By the way, although there is no restriction | limiting in the internal diameter of the accommodation space 12, if it forms substantially equal to the outer diameter of the inner temporary holding member 35, the inner temporary holding member 35 extruded into the accommodation space 12 will be accommodated without gap with the accommodation space 12. Therefore, there is no violence in the accommodation space 12 after assembly.
[0060]
Even if the accommodation space 12 is formed larger than the inner provisional pressing member 35 and the inner provisional pressing member 35 is violated in the accommodation space 12, if the inner provisional pressing member 35 is formed of a synthetic resin or the like, it is not preferable noise. Will not occur. Moreover, the accommodation space 12 should just be able to accommodate the inner side temporary holding member 35, and is not limited to a round shape.
[0061]
Further, since the inner temporary holding member 35 remains in the connecting portion even after the bearing 30 is assembled, a material having oil resistance, heat resistance and the like is appropriately selected in consideration of the conditions of the connecting portion.
[0062]
1 and 4 show a method of assembling in a state where the output shaft 10 'and the input shaft 20' are oriented vertically, it is needless to say that the method can be applied to a case where the output shaft 10 'is assembled in a landscape orientation.
[0063]
So far, the method and structure for assembling the bearing at the connecting portion between the input shaft (first shaft) and the output shaft (second shaft) in the vehicle transmission have been described, but the present invention is not limited in this respect. Any portion that connects the shaft and the shaft so as to be relatively rotatable with each other can be applied.
[0064]
【The invention's effect】
In short, according to the present invention, excellent effects are exhibited as described below.
1) A large capacity type bearing can be assembled easily and quickly.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a bearing assembling method and structure according to an embodiment of the present invention.
FIG. 2 is an enlarged perspective view of a bearing in FIG.
FIG. 3 is a developed perspective view of the bearing in FIG. 1;
FIG. 4 is a cross-sectional view showing a method and structure for assembling a bearing formed of only rollers.
FIG. 5 is an enlarged perspective view of a bearing formed of only rollers.
FIG. 6 is a developed perspective view of a bearing formed of only rollers.
FIG. 7 is a schematic view of a vehicle transmission.
FIG. 8 is a cross-sectional view showing a connecting portion between an input shaft and an output shaft in a conventional vehicle transmission.
[Explanation of symbols]
10 'first axis (input axis)
11 'recess 12 storage space 20' second shaft (output shaft)
21 'Convex part 30 Bearing 31 Roller 33 Outer cage 35 Inner temporary pressing member 40 Outer temporary pressing member

Claims (6)

環状に配置された複数のころと、該ころを収容すると共に該ころが外側へ飛び出すことを防止する収容穴を有する円筒形状の外側保持器とからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付けるための組付方法において、上記ベアリングの外側保持器の内方に、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを内側から押さえこむ内側仮押え部材を装着し、該内側仮押え部材が装着されたベアリングを上記第一軸の凹部に収容した後、上記第二軸の凸部を上記凹部内に挿入して、該凸部によって上記内側仮押え部材を押し出し、上記内側仮押え部材を上記凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しい収納スペースに密接させて収納するようにしたことを特徴とするベアリングの組付方法。A plurality of rollers arranged annularly, a bearing consisting of an outer cage of cylindrical shape having an accommodation hole to prevent said rollers pops outward with housing the rollers, which is formed in the first shaft recess And an outer diameter that is larger than the diameter of the inscribed circle of the bearing on the inner side of the outer cage of the bearing. The inner temporary pressing member that has a diameter and can be expanded and contracted and presses the roller from the inside is mounted, and after the bearing having the inner temporary pressing member mounted is received in the recess of the first shaft, the convex portion of the second shaft is inserted into the recess, extruded the inner temporary pressing member by the convex portion, the inner temporary pressing member is formed continuously in the recess and an inner diameter of the inscribed circle of the bearing It was in close contact with the diameter equal to storage space Method of assembling the bearing, characterized in that was to house. 環状に配置された複数のころからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付けるための組付方法において、上記環状に配置された複数のころの外方に、上記ころを外側から押さえこむ外側仮押え部材を装着すると共に、上記ころの内方に、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを内側から押さえこむ内側仮押え部材を装着し、上記第一軸の凹部の外縁に上記外側仮押え部材を当接させた状態で上記ころ及び内側仮押え部材を上記第一軸の凹部内に押し出して収容した後、上記第二軸の凸部を上記凹部内に挿入して、該凸部によって上記内側仮押え部材を押し出し、上記内側仮押え部材を上記凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しい収納スペースに密接させて収納するようにしたことを特徴とするベアリングの組付方法。In an assembling method for assembling a bearing composed of a plurality of rollers arranged in an annular shape between a concave portion formed on the first shaft and a convex portion formed on the second shaft, the bearing is arranged in the annular shape. outside the plurality of rollers, with mounting the outer temporary pressing member Komu pressing the roller from the outside, the inside of the roller, and has an outer diameter that diameter larger than the diameter of the inscribed circle of the bearing diameter and diametrically contractible and is and is attached to the inner temporary pressing member Komu pressing the roller from the inside, the said roller in a state where the outer edge to abut against the outer temporary pressing member recess of the first shaft and inner temporary after the pressing member housed extruded into the recess of the first axis, the convex portion of the second shaft is inserted into the recess, extruded the inner temporary pressing member by the convex portion, the inner temporary pressing member are formed continuously in the recess and an inner diameter of the Bearin Assembling method of the bearing, characterized in that as to closely diameter equal storage space of the inscribed circle of the housing with. 上記第一軸及び第二軸が、車両の変速機における入力軸及び出力軸である請求項１又は２記載のベアリングの組付方法。  The bearing assembly method according to claim 1 or 2, wherein the first shaft and the second shaft are an input shaft and an output shaft in a transmission of a vehicle. 環状に配置された複数のころと、該ころを収容すると共に該ころが外側へ飛び出すことを防止する収容穴を有する円筒形状の外側保持器とからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付ける組付構造において、上記ベアリングの外側保持器の内方に装着され、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを内側から押さえこむ内側仮押え部材と、上記第一軸の凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しく、上記ベアリングと上記凸部が上記凹部内に挿入された状態で上記内側仮押え部材を密接させて収納する収納スペースとを備えたことを特徴とするベアリングの組付構造。A plurality of rollers arranged annularly, a bearing consisting of an outer cage of cylindrical shape having an accommodation hole to prevent said rollers pops outward with housing the rollers, which is formed in the first shaft recess And the convex structure formed on the second shaft, the outer diameter of the outer structure is larger than the diameter of the inscribed circle of the bearing. An inner temporary holding member that can be expanded and reduced in diameter and that presses the roller from the inner side, and is formed continuously with the concave portion of the first shaft, and the inner diameter is equal to the diameter of the inscribed circle of the bearing , assembly structure of the bearing, characterized in that the bearing and the projecting portion has a storage space for housing by close contact with the inner temporary pressing member in a state of being inserted into the recess. 環状に配置された複数のころからなるベアリングを、第一軸に形成された凹部と第二軸に形成された凸部との間に組付ける組付構造において、上記環状に配置された複数のころの外方に装着され、上記ころを外側から押さえこむ外側仮押え部材と、上記ころの内方に装着され、上記ベアリングの内接円の径よりも拡径した外径を有し且つ拡径及び縮径可能であり且つ上記ころを内側から押さえこむ内側仮押え部材と、上記第一軸の凹部に連続して形成され且つ内径が上記ベアリングの内接円の径と等しく、上記凹部の外縁に上記外側仮押え部材を当接させた状態で上記ころ及び内側仮押え部材を上記凹部内に押し出して収容した後に上記凹部内に挿入される上記凸部によって押し出される上記内側仮押え部材を密接させて収納する収納スペースとを備えたことを特徴とするベアリングの組付構造。In an assembly structure in which a bearing composed of a plurality of rollers arranged in an annular shape is assembled between a concave portion formed on the first shaft and a convex portion formed on the second shaft, the plurality of annularly arranged rollers mounted on the outside of the rollers, and the outer temporary pressing member Komu pressing rollers the from the outside, is mounted on the inside of the roller, and expansion has an outer diameter that diameter larger than the diameter of the inscribed circle of the bearing and the diameter and diameter reduction possible and and inner temporary pressing member Komu pressing the roller from the inside, the first in the axial recess of the continuously formed and the inner diameter is equal to the diameter of the inscribed circle of the bearing, the recess the inner provisional pressing member is pushed out of the rollers and inner temporary pressing member in a state in which the outer edge is abutted to the outer temporary pressing member by the convex portion inserted into the inner recess after receiving extruded into the recess storage houses so close to space Assembling the structure of the bearing, characterized in that it is provided with a door. 上記第一軸及び第二軸が、車両の変速機における入力軸及び出力軸である請求項４又は５記載のベアリングの組付構造。  The bearing assembly structure according to claim 4 or 5, wherein the first shaft and the second shaft are an input shaft and an output shaft in a transmission of a vehicle.
JP2001016906A 2001-01-25 2001-01-25 Bearing assembly method and structure Expired - Fee Related JP4529292B2 (en)

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CN102501050B (en) * 2011-10-31 2015-02-11 中国航空动力机械研究所 Method for replacing bearing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0284017U (en) * 1988-12-16 1990-06-29
JPH0378132U (en) * 1989-11-30 1991-08-07
JPH0456921U (en) * 1990-09-25 1992-05-15
JPH10196665A (en) * 1997-12-15 1998-07-31 Ntn Corp Roller bearing and its assembling method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0284017U (en) * 1988-12-16 1990-06-29
JPH0378132U (en) * 1989-11-30 1991-08-07
JPH0456921U (en) * 1990-09-25 1992-05-15
JPH10196665A (en) * 1997-12-15 1998-07-31 Ntn Corp Roller bearing and its assembling method

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