JP3986695B2

JP3986695B2 - Intermediate bearing support frame in balance testing machine

Info

Publication number: JP3986695B2
Application number: JP37230798A
Authority: JP
Inventors: 裕一巳波; 康二月岡; 寛山川
Original assignee: Mitutoyo Corp
Current assignee: Mitutoyo Corp
Priority date: 1998-12-28
Filing date: 1998-12-28
Publication date: 2007-10-03
Anticipated expiration: 2018-12-28
Also published as: JP2000193549A

Description

【０００１】
【発明の属する技術分野】
本発明は、自動車のプロペラシャフト等の被試験体の動的な釣り合い状態を測定する釣合い試験機における被試験体の中間軸受を支持する中間軸受支持架台に関する。
【０００２】
【従来の技術】
従来、プロペラシャフト、マイクロモータ或いは高速スピンドルのような高速回転する部品の高速回転時の釣合い状態を測定するものとして釣合い試験機が知られている。
従来の釣合い試験機は、例えば、図８に示す釣合い試験機１００のように、基台１０１と、該基台１０１の両端部に対向配置され、被試験体となるプロペラシャフト１１０の両端部のユニバーサルジョイント１１１と接続されるスピンドル１０２を備えた左端支持架台１０３及び右端支持架台１０４と、左端支持架台１０３と右端支持架台１０４の間に設けられ、プロペラシャフト１１０に軸継手部軸受１１２（中間軸）を支持する中間軸受支持架台１０５と、前記左端支持架台１０３のスピンドル１０２に接続され、プロペラシャフト１１０に回転を与える回転駆動装置１０６などを備え、プロペラシャフト１１０に回転駆動装置１０６により高速回転を与えて、高速回転時の釣合い状態を測定する装置である。
【０００３】
ところで、釣合い試験機１００によるプロペラシャフト１１０の釣合い試験を行う場合、軸継手部軸受１１２の形状や構造が異なる場合、該軸継手部軸受１１２を支持する中間軸受支持架台１０５の支持部１０５ａの形状もそれに合わせて交換しなければならなかった。
そして従来、この支持部１０５ａはねじ止めされていて、作業員がねじを付けたり外したりすることにより支持部１０５ａの交換を行っていた。
【０００４】
【発明が解決しようとする課題】
しかしながら、ねじ止めによる中間軸受支持架台１０５の支持部１０５ａの固定では、支持部１０５ａの交換作業が非常に煩雑であるという問題点があった。
特に、小ロットで多種類の被試験体を試験する場合、この支持部１０５ａの交換作業が作業の効率化の上でネックとなっていた。
本発明は上記問題点を解決するためになされたものであって、中間軸受を支持する支持部の交換作業が比較的容易で、且つ多種類の被試験体を効率よく試験することが可能な釣合い試験機を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記課題を解決するため、
請求項１記載の発明は、釣合い試験機（１）の基台（２）に取り付けられ、被試験体１０（例えば、プロペラシャフト）に取り付けられた中間軸受（１１）を支持する支持部（５２）が交換可能な中間軸受支持架台（５）であって、
前記中間軸受支持架台は、本体部（５１）と、
前記本体部に設けられ、前記支持部と係合して前記本体部に固定する係合部（５４）と、
前記係合部を上下動させる係合部移動手段５５（例えば、第１のシリンダ装置）と、を備え、
前記支持部は、その上部に前記中間軸受を載置して支持する支持台（５２ａ）と、その下部に前記係合部に係合される被係合部（５２ｃ）と、を備え、
前記係合部と前記被係合部との係合、及びその解除は、前記係合部移動手段の上下動に基づいて行われることを特徴としている。
【０００６】
請求項１記載の発明によれば、係合部移動手段による上下動に基づいて中間軸受支持架台の本体部の係合部と、支持部の被係合部とが係合して支持部が本体部に固定されるので、従来のようなねじ止めによる固定に比べて支持部の固定が容易であるとともに、支持部の固定の解除も係合部移動手段による上下動に基づいて行われるので容易となることとなって、多種類の被試験体でも効率よく試験することが可能である。
【０００７】
ここで、被試験体は、例えば、自動車用プロペラシャフト、自在継手軸、或いはユニバーサルジョイント軸など、回転して使用されるものであって、中間軸受が必要なものである。
係合部移動手段とは、係合部を上下方向に移動可能なものであればよく、例えば、シリンダ装置、ボールねじ、或いはラックとピニオンなどを使用する。
【０００８】
請求項２記載の発明は、請求項１記載の中間軸受支持架台において、
前記係合部は、下端部が回動自在に支持された一対の係合片５４ｂ、５４ｂを有し、
前記一対の係合片は前記係合部移動手段の上下動により開閉し、前記一対の係合片が閉じる際に前記被係合部と係合するとともに、前記一対の係合片が開く際に前記被係合部との係合が解除されるよう構成されていることを特徴としている。
【０００９】
請求項２記載の発明によれば、下端部が回動自在に支持された一対の係合片は係合部移動手段の上下動により開閉し、係合部は一対の係合片が閉じる際に被係合部に係合されるとともに、一対の係合片が開く際に被係合部との係合が解除されるので、請求項１記載の発明と同様の効果が得られることは無論のこと、特に、機構が比較的簡易なもので確実に支持部の固定及びその解除が出来る。
【００１０】
請求項３記載の発明は、請求項１又は２記載の中間軸受支持架台において、
前記本体部には、前記被試験体の軸方向に対して直角な方向に、中間軸受支持位置から所定の長さに設けられた案内部５８（例えば、溝部）と、
前記案内部に摺動可能に取り付けられ、上部に前記支持台（５９ａ）を有する移動部（５９）と、
前記移動部を中間軸受支持位置まで移動させる移動部移動手段６０（例えば、第２のシリンダ装置）と、
を備えたことを特徴としている。
【００１１】
請求項３記載の発明によれば、支持台を有する移動部が、移動部移動手段によって中間軸受支持位置まで案内部に沿って移動されるので、中間軸受支持位置にある支持部を取り外し後、移動部を中間軸受支持位置に移動させることにより、支持部の交換作業をより効率よく行うことが出来る。
具体的には、よく使う支持台を移動部の上部に固定しておき、着脱自在な支持部を取り外すと同時に、移動部移動手段によって、移動部を中間軸受支持位置に移動させることにより、支持台を交換する際、常に支持部を着脱して交換する必要がなく、効率的に支持台の交換を行うことが出来る。
【００１２】
ここで、移動部移動手段とは、移動部を上下方向に移動可能なものであればよく、例えば、シリンダ装置、ボールねじ、或いはラックとピニオンなどを使用する。
【００１３】
請求項４記載の発明は、請求項１〜３の何れかに記載の中間軸受支持架台において、
前記移動部は、中間軸受支持位置まで移動した際に前記係合部と係合可能な移動部係合部（５９ｃ）を備えていることを特徴としている。
【００１４】
請求項４記載の発明によれば、移動部は、中間軸受支持位置まで移動した際に係合部と係合可能な移動部係合部を備えているので、係合部移動手段の上下動によって移動部を中間軸受支持位置に確実に固定することが出来る。
【００１５】
請求項５記載の発明は、請求項１〜４の何れかに記載の中間軸受支持架台において、
前記支持台は、着脱可能であることを特徴としている。
【００１６】
請求項５記載の発明によれば、支持台は着脱自在なので、支持部の支持台と移動部の支持台を兼用することが出来る。
また、被係合部や移動部被係合部の数を必ずしも支持台の数に合わせる必要がなく、複数の支持台に対して被係合部や移動部被係合部を兼用させることが出来ることとなって、コストを削減することが出来る。
【００１７】
ここで、支持台と被係合部、或いは移動部と固定は、例えば、ねじ止めであってもよいし、或いは特別の固定具により固定してもよい。
【００１８】
【発明の実施の形態】
以下、図を参照して本発明に係る釣合い試験機における中間軸受支持架台の実施の形態を詳細に説明する。
図１は、本発明に係る中間軸受支持架台が設けられる釣合い試験機を模式的に示した全体構成図である。
【００１９】
図１に示す本発明に係る釣合い試験機１は、例えば、被試験体としてプロペラシャフト１０の高速回転時の釣合い状態を測定するための試験機であって、基台２と、該基台２上を各々直線往復動する左端支持架台３と、右端支持架台４と、中間軸受支持架台５と、前記左端支持架台３に接続され、プロペラシャフト１０に回転力を与える回転駆動装置６などにより概略構成されている。
【００２０】
前記左端支持架台３と前記右端支持架台４には、対向配置されたスピンドル７と、該スピンドル７に連結され、プロペラシャフト１０を固定するチャック部８と、が設けられ、該チャック部８には、プロペラシャフト１０の端部が装着されるようになっている。
【００２１】
前記回転駆動装置６は、図示しないモータを備え、前記左端支持架台３の前記スピンドル７に回転駆動軸７１を介して接続され、モータ（図示省略）による回転駆動力を前記スピンドル７に伝達する。
そして、回転駆動装置６のモータ（図示省略）の回転駆動力がスピンドル７に伝達されることによりプロペラシャフト１０が回転するようになっている。
また、前記左端支持架台３、前記右端支持架台４には、プロペラシャフト１０の高速回転時に不釣り合いに起因して発生する振動を伝達するバネ（図示省略）が備えられている。
【００２２】
続いて、本発明に係る中間軸受支持架台５について詳細に説明する。
図２は、本発明に係る中間軸受支持架台５の長手方向の断面図であり、図３は、同じく幅方向の断面図である。
図２及び図３に示す中間軸受支持架台５は、前記左端支持架台３、前記右端支持架台４の間に設けられ、プロペラシャフト１０の中間軸受部１１を支持している。
そして、中間軸受支持架台５は、本体部５１と、該本体部５１が支持される板バネ５１ａと、中間軸受支持位置に設けられ、中間軸受１１を支持する支持部５２が係合されて固定される支持部固定部５３を備えている。
【００２３】
前記支持部固定部５３は、前記支持部５２と係合して前記本体部５１に固定する係合部５４と、前記係合部５４を上下動させる係合部移動手段としての第１のシリンダ装置５５と、を備え、該第１のシリンダ装置５５のシリンダヘッド５５ａが前記係合部５４と接合されている。
【００２４】
前記係合部５４は、下端部が軸５４ａ、５４ａに回動自在に支持され、上端部が内側に突起した一対の係合片５４ｂ、５４ｂを有し、前記一対の係合片５４ｂ、５４ｂ同士は、図４に示すように、バネ５４ｃにより予め上端部５４ｄ、５４ｄが開いた状態で本体部５１内の幅広空間部５６で待機され、前記第１のシリンダ装置５５により係合部５４が下方に動くと、係合片５４ｂ、５４ｂの下端部５４ｅ、５４ｅが幅広空間部５６から幅狭空間部５７に移動する際、前記一対の係合片５４ｂ、５４ｂが閉じるようになっている。
【００２５】
前記支持部５２は、前記中間軸受１１を載置して支持する支持台５２ａと、前記支持部固定部５３の係合部５４に係合されるコ字状部５２ｂを有する被係合部５２ｃを備えている。
そして、前記第１のシリンダ装置５５により前記係合部５４が下方に動くと、前記係合片５４ｂ、５４ｂの上端部５４ｄ、５４ｄと前記被係合部５２ｃのコ字状部５２ｂとが係合され、更に係合部５４が下方に引っ張られることにより、前記支持台５２ａの下面と前記本体部５１の上面の当接部５１ｂに押圧力が作用して固定されるようになっている。また、前記係合部５４と前記被係合部５２ｃとの係合を解除する場合は、第１のシリンダ装置５５により前記係合部５４を上方に移動させ、係合片５４ｂ、５４ｂの下端部５４ｅ、５４ｅが幅狭空間部５７から幅広空間部５６に移動する際、バネ５４ｃ、５４ｃによって係合片５４ｂ、５４ｂの上端部５４ｄ、５４ｄが開くことにより行われる。
【００２６】
ここで、前記支持台５２ａは前記被係合部５２ｃに、ねじ５２ｄ、５２ｄによって取り付けられ、着脱自在となっている。従って、一つの被係合部５２ｃで複数の支持台５２ａを兼用することが可能となっている。
【００２７】
また、前記本体部５１には、図５に示すように、プロペラシャフト１０の軸方向に対して直角な方向に、中間軸受支持位置から所定の長さに設けられた案内部としての溝部５８と、前記溝部５８に摺動可能に取り付けられ、上部に中間軸受１１を支持する支持台５９ａを有する移動部５９と、前記移動部５９を移動させる移動部移動手段としての第２のシリンダ装置６０（図２）と、が設けられている。
前記移動部５９は、前記移動方向に前記第２のシリンダ装置６０によって、移動部５９に取り付けられた支持台５９ａが中間軸受支持位置に達する位置まで移動出来るようになっている。
【００２８】
また、前記移動部５９は、中間軸受支持位置まで移動した際に、前記係合部５４と係合可能なコ字状部５９ｂを有する移動部被係合部５９ｃを備えている。
そして、前記移動部５９が中間軸受支持位置まで移動した後、前記係合部５４が第１のシリンダ装置５５により下方に移動することによって、係合片５４ｂ、５４ｂと移動部被係合部５９ｃとが係合して移動部５９が、本体部５１に固定されるようになっている。
【００２９】
ここで、前記支持台５９ａは前記移動部被係合部５９ｃに、ねじ５９ｄ、５９ｄによって取り付けられ、着脱自在となっている。従って、一つの移動部被係合部５９ｃで複数の支持台５９ａを兼用することが可能であるとともに、前記支持部５２の支持台５２ａと、移動部５９の支持台５２ａとの間でも、互いに兼用することが出来るようになっている。
【００３０】
また、前記本体部５１には、前記移動部５９の待機位置よりも更に外側の本体部５１から上方に突出した支柱６１が設けられ、該支柱６１の上端部６１ａには、中間軸受支持位置の垂直方向に突出してアーム６２が設けられている。
そして、前記中間軸受支持位置の中心線の延長線上の前記アーム６２には、前記中間軸受１１を上方から支持する支持片６３が取り付けられ、該支持片６３はシリンダ装置６４によって、上下動するようになっている。
【００３１】
次に、上記中間軸受支持架台５における中間軸受１１の支持台５２ａ、５９ａの交換動作を図２〜図７を使用して説明する。
まず、予め、図６に示すように、前記移動部５９に使用頻度の高い支持台５９ａを取り付けておく。
次いで、本体部５１の中間軸受支持位置に設けられた幅広空間部５６内に支持部５２の被係合部５２ｃを挿入する。すると、前記被係合部５２ｃは、図４に示すように、前記係合部５４の一対の係合片５４ｂ、５４ｂの間に位置する。
次いで、この状態で前記第１のシリンダ装置５５により前記係合部５４を下方に移動させると、前記係合片５４ｂ、５４ｂの下端部５４ｅ、５４ｅが幅狭空間部５７に引き込まれるに連れて２つの係合片５４ｂ、５４ｂの上端部５４ｄ、５４ｄの離間間隔が狭くなり、前記被係合部５２ｃのコ字状部５２ｂ、５２ｂと当接する。更に、係合部５４が下方に下がると、前記支持台５２ａの下面と前記本体部５１の上面の当接部５１ｂに押圧力が作用して支持部５２が本体部５１に固定される。
【００３２】
そして、プロペラシャフト１０が貫通された中間軸受１１を、図２に示すように、前記支持台５２ａに載置し、上部の支持片６３を下降させて中間軸受１１を３点で支持する。
所定の試験終了後、支持台５２ａから中間軸受１１を外すとともに、前記第１のシリンダ装置５５により前記係合部５４を上昇させる。すると、前記支持台５２ａの下面と前記本体部５１の上面の当接部５１ｂに作用する押圧力が解除されるとともに、前記２つの係合片５４ｂ、５４ｂの上端部５４ｄ、５４ｄの離間間隔が次第に広がり、被係合部５２ｃとの係合が解除され、この状態で支持部５２を本体部５１から外す。
【００３３】
次いで、図７に示すように、前記第２のシリンダ装置６０により前記移動部５９を前記支持台５９ａが中間軸受支持位置に達するまで移動させる。
次いで、第１のシリンダ装置５５により前記係合部５４を下方に移動させると、図４に示したのと同じ機構で前記係合片５４ｂ、５４ｂの下端部５４ｅ、５４ｅが幅狭空間部５７に引き込まれるに連れて２つの係合片５４ｂ、５４ｂの上端部５４ｄ、５４ｄの離間間隔が狭くなり、前記移動部５９の前記移動部被係合部５９ｃのコ字状部５９ｂ、５９ｂと当接する。更に、係合部５４が下方に下がると、前記支持台５９ａの下面と前記本体部５１の上面の当接部５１ｂに押圧力が作用して移動部５９が本体部５１に固定される。
【００３４】
そして、プロペラシャフト１０が貫通された中間軸受１１を前記支持台５９ａに載置し、上部の支持片６３を下降させて中間軸受１１を３点支持する。
所定の試験終了後、支持台５９ａから中間軸受１１を外すとともに、前記第１のシリンダ装置５５により前記係合部５４を上昇させる。すると、前記支持台５９ａの下面と前記本体部５１の上面の当接部５１ｂに作用する押圧力が解除されるとともに、前記２つの係合片５４ｂ、５４ｂの上端部５４ｄ、５４ｄの離間間隔が次第に広がり、被係合部５２ｃとの係合が解除され、この状態で前記第２のシリンダ装置６０により前記移動部５９を待機位置まで移動させる。
【００３５】
以上説明した本発明に係る釣合い試験機１における中間軸受支持架台５によれば、下端部５４ｅ、５４ｅが回動自在に支持された一対の係合片５４ｂ、５４ｂが第１のシリンダ装置５５の上下動により開閉し、係合部５４は一対の係合片５４ｂ、５４ｂが閉じる際に被係合部５２ｃのコ字状部５２ｂに係合されるとともに、一対の係合片５４ｂ、５４ｂが開く際に被係合部５２ｃのコ字状部５２ｂとの係合が解除されるので、従来のようなねじ止めによる固定に比べて支持部５２の固定が容易であるとともに、支持部５２の固定の解除も容易となることとなって、小ロットで多種類のプロペラシャフト１０でも効率よく試験することが可能である。
【００３６】
また、支持台５９ａを有する移動部５９が、第２のシリンダ装置６０によって中間軸受支持位置まで溝部５８に沿って移動されるので、例えば、よく使う支持台５９ａを移動部５９に固定しておき、支持部５２を取り外すと同時に、移動部５９を中間軸受支持位置に移動させることにより、支持台５２ａを交換する際、常に支持部５２を着脱して交換する必要がなく、効率的に支持台５２ａ、５９ａの交換を行うことが出来る。
更に、移動部５９は、中間軸受支持位置まで移動した際に係合部５４と係合可能な移動部係合部５９ｃを備えているので、第１のシリンダ装置５５の上下動によって移動部５９を中間軸受支持位置に確実に固定することが出来る。
【００３７】
なお、係合部と被係合部の形状及び係合機構は、上記実施の形態に示したものに限るものでなく、第１のシリンダ装置の上下動によって係合可能形状及び機構であればどのようなものであってもよい。
【００３８】
【発明の効果】
請求項１記載の発明によれば、係合部移動手段による上下動に基づいて中間軸受支持架台の本体部の係合部と、支持部の被係合部とが係合して支持部が本体部に固定されるので、従来のようなねじ止めによる固定に比べて支持部の固定が容易であるとともに、支持部の固定の解除も係合部移動手段による上下動に基づいて行われるので容易となることとなって、多種類の被試験体でも効率よく試験することが可能である。
【００３９】
請求項２記載の発明によれば、下端部が回動自在に支持された一対の係合片は係合部移動手段の上下動により開閉し、係合部は一対の係合片が閉じる際に被係合部に係合されるとともに、一対の係合片が開く際に被係合部との係合が解除されるので、請求項１記載の発明と同様の効果が得られることは無論のこと、特に、機構が比較的簡易なもので確実に支持部の固定及びその解除が出来る。
【００４０】
請求項３記載の発明によれば、支持台を有する移動部が、移動部移動手段によって中間軸受支持位置まで案内部に沿って移動されるので、中間軸受支持位置にある支持部を取り外し後、移動部を中間軸受支持位置に移動させることにより、支持部の交換作業をより効率よく行うことが出来る。
具体的には、よく使う支持台を移動部の上部に固定しておき、着脱自在な支持部を取り外すと同時に、移動部移動手段によって、移動部を中間軸受支持位置に移動させることにより、支持台を交換する際、常に支持部を着脱して交換する必要がなく、効率的に支持台の交換を行うことが出来る。
【００４１】
請求項４記載の発明によれば、移動部は、中間軸受支持位置まで移動した際に係合部と係合可能な第２の係合部を備えているので、係合部移動手段の上下動によって移動部を中間軸受支持位置に確実に固定することが出来る。
【００４２】
請求項５記載の発明によれば、支持台は着脱自在なので、支持部の支持台と移動部の支持台を兼用することが出来る。
また、被係合部や移動部の数を必ずしも支持台の数に合わせる必要がなく、複数の支持台に対して被係合部や移動部を兼用させることが出来ることとなって、コスト削減することが出来る。
【図面の簡単な説明】
【図１】本発明に係る釣合い試験機を模式的に示した全体構成図である。
【図２】本発明に係る中間軸受支持架台５の長手方向の断面図である。
【図３】本発明に係る中間軸受支持架台５の幅方向の断面図である。
【図４】図１のＡ−Ａ矢視断面図である。
【図５】図１のＢ−Ｂ矢視断面図である。
【図６】本発明に係る中間軸受支持架台５の長手方向の断面図であって、支持部を挿入前の状態を示した図である。
【図７】本発明に係る中間軸受支持架台５の長手方向の断面図であって、移動部を中間軸受支持位置まで移動させた状態を示した図である。
【図８】従来の釣合い試験機を模式的に示した全体構成図である。
【符号の説明】
１釣合い試験機
２基台
５中間軸受支持架台
１０プロペラシャフト
１１中間軸受
５１本体部
５２支持部
５２ａ支持台
５２ｂコ字状部
５２ｃ被係合部
５２ｄネジ
５４係合部
５５第１のシリンダ装置（係合部移動手段）
５９移動部
５９ａ支持台
５９ｂコ字状部
５９ｃ移動部被係合部
５９ｄねじ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an intermediate bearing support frame for supporting an intermediate bearing of a device under test in a balance testing machine that measures a dynamic balance state of a device under test such as a propeller shaft of an automobile.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a balance testing machine is known as a device for measuring a balance state at a high speed rotation of a component that rotates at high speed such as a propeller shaft, a micro motor, or a high speed spindle.
A conventional balance testing machine is, for example, like a balance testing machine 100 shown in FIG. 8, a base 101 and both ends of the base 101 are arranged opposite to each other, and at both ends of the propeller shaft 110 serving as a test object. A left end support frame 103 and a right end support frame 104 provided with a spindle 102 connected to the universal joint 111, and provided between the left end support frame 103 and the right end support frame 104. The propeller shaft 110 has a shaft joint bearing 112 (intermediate shaft). ) And a rotation drive device 106 that is connected to the spindle 102 of the left end support frame 103 and applies rotation to the propeller shaft 110. The propeller shaft 110 is rotated at high speed by the rotation drive device 106. This is a device for measuring the balance state at high speed rotation.
[0003]
By the way, when the balance test of the propeller shaft 110 by the balance test machine 100 is performed, if the shape and structure of the shaft joint bearing 112 are different, the shape of the support portion 105a of the intermediate bearing support pedestal 105 that supports the shaft joint bearing 112 is shown. Also had to be changed accordingly.
Conventionally, the support portion 105a is screwed, and the support portion 105a is replaced by an operator attaching or removing a screw.
[0004]
[Problems to be solved by the invention]
However, the fixing of the support portion 105a of the intermediate bearing support frame 105 by screwing has a problem that the replacement work of the support portion 105a is very complicated.
In particular, when testing various types of test objects in a small lot, the replacement work of the support portion 105a has become a bottleneck in terms of improving work efficiency.
The present invention has been made to solve the above-described problems, and it is relatively easy to replace the support portion that supports the intermediate bearing, and it is possible to efficiently test many types of test objects. An object is to provide a balance testing machine.
[0005]
[Means for Solving the Problems]
To solve the above problem,
According to the first aspect of the present invention, the support portion (52) is attached to the base (2) of the balance testing machine (1) and supports the intermediate bearing (11) attached to the device under test 10 (for example, a propeller shaft). ) Is a replaceable intermediate bearing support frame (5),
The intermediate bearing support frame includes a main body (51),
An engagement portion (54) provided on the main body portion and engaged with the support portion and fixed to the main body portion;
Engagement portion moving means 55 (for example, a first cylinder device) that moves the engagement portion up and down,
The support portion includes a support base (52a) for placing and supporting the intermediate bearing at an upper portion thereof, and an engaged portion (52c) engaged with the engagement portion at a lower portion thereof.
The engagement between the engagement portion and the engaged portion and the release thereof are performed based on the vertical movement of the engagement portion moving means.
[0006]
According to the first aspect of the present invention, the support portion is engaged by the engagement portion of the main body portion of the intermediate bearing support frame and the engaged portion of the support portion based on the vertical movement by the engagement portion moving means. Since it is fixed to the main body, it is easy to fix the support part as compared with conventional fixing by screwing, and the fixing of the support part is also released based on the vertical movement by the engaging part moving means. As a result, it is possible to efficiently test even a wide variety of test objects.
[0007]
Here, the object to be tested is, for example, an automobile propeller shaft, a universal joint shaft, or a universal joint shaft, which is used by being rotated and requires an intermediate bearing.
The engaging part moving means may be any means that can move the engaging part in the vertical direction. For example, a cylinder device, a ball screw, a rack and a pinion, or the like is used.
[0008]
The invention according to claim 2 is the intermediate bearing support frame according to claim 1,
The engaging portion has a pair of engaging pieces 54b and 54b whose lower end portions are rotatably supported,
The pair of engagement pieces are opened and closed by the vertical movement of the engagement portion moving means, and when the pair of engagement pieces are closed, the pair of engagement pieces are engaged with the engaged portion and when the pair of engagement pieces are opened. Further, the engagement with the engaged portion is released.
[0009]
According to the second aspect of the present invention, the pair of engaging pieces whose lower end portions are rotatably supported are opened and closed by the vertical movement of the engaging portion moving means, and the engaging portions are closed when the pair of engaging pieces are closed. Since the engagement with the engaged portion is released when the pair of engaging pieces are opened, the same effect as the invention according to claim 1 can be obtained. Of course, in particular, the mechanism can be fixed and released reliably with a relatively simple mechanism.
[0010]
The invention according to claim 3 is the intermediate bearing support frame according to claim 1 or 2,
In the main body portion, a guide portion 58 (for example, a groove portion) provided at a predetermined length from the intermediate bearing support position in a direction perpendicular to the axial direction of the device under test,
A moving part (59) slidably attached to the guide part and having the support (59a) on the upper part;
Moving part moving means 60 (for example, a second cylinder device) for moving the moving part to the intermediate bearing support position;
It is characterized by having.
[0011]
According to invention of Claim 3, since the moving part which has a support stand is moved along a guide part to an intermediate bearing support position by a moving part moving means, after removing a support part in an intermediate bearing support position, By moving the moving part to the intermediate bearing support position, the support part can be exchanged more efficiently.
Specifically, a frequently used support base is fixed to the upper part of the moving part, and the removable support part is removed, and at the same time, the moving part is moved to the intermediate bearing support position by the moving part moving means. When exchanging the base, it is not always necessary to attach and detach the support portion for replacement, and the support base can be efficiently exchanged.
[0012]
Here, the moving part moving means may be any means that can move the moving part in the vertical direction. For example, a cylinder device, a ball screw, or a rack and pinion are used.
[0013]
The invention according to claim 4 is the intermediate bearing support frame according to any one of claims 1 to 3,
The moving portion includes a moving portion engaging portion (59c) that can be engaged with the engaging portion when moving to the intermediate bearing support position.
[0014]
According to the fourth aspect of the present invention, the moving portion includes the moving portion engaging portion that can be engaged with the engaging portion when moving to the intermediate bearing support position. Thus, the moving part can be reliably fixed to the intermediate bearing support position.
[0015]
Invention of Claim 5 is the intermediate bearing support stand in any one of Claims 1-4,
The support base is detachable.
[0016]
According to the invention described in claim 5, since the support base is detachable, the support base of the support portion and the support base of the moving portion can be used together.
Moreover, it is not always necessary to match the number of engaged portions and moving portion engaged portions with the number of support bases, and the engaged portions and moving portion engaged portions can be used for a plurality of support bases. As a result, costs can be reduced.
[0017]
Here, the support base and the engaged portion or the moving portion and the fixing may be, for example, screwing or may be fixed by a special fixing tool.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an intermediate bearing support frame in a balance testing machine according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall configuration diagram schematically showing a balance testing machine provided with an intermediate bearing support frame according to the present invention.
[0019]
A balance test machine 1 according to the present invention shown in FIG. 1 is a test machine for measuring a balance state when a propeller shaft 10 is rotated at a high speed as a test object, for example, a base 2 and the base 2. The left end support frame 3, the right end support frame 4, the intermediate bearing support frame 5, and the rotary drive device 6 that is connected to the left end support frame 3 and applies a rotational force to the propeller shaft 10, etc. It is configured.
[0020]
The left end support frame 3 and the right end support frame 4 are provided with a spindle 7 arranged opposite to each other and a chuck portion 8 connected to the spindle 7 and fixing the propeller shaft 10. The end of the propeller shaft 10 is mounted.
[0021]
The rotational driving device 6 includes a motor (not shown), is connected to the spindle 7 of the left end support frame 3 via a rotational driving shaft 71, and transmits rotational driving force by a motor (not shown) to the spindle 7.
The propeller shaft 10 is rotated by transmitting the rotational driving force of a motor (not shown) of the rotational driving device 6 to the spindle 7.
Further, the left end support frame 3 and the right end support frame 4 are provided with springs (not shown) that transmit vibrations generated due to unbalance when the propeller shaft 10 rotates at high speed.
[0022]
Next, the intermediate bearing support frame 5 according to the present invention will be described in detail.
FIG. 2 is a longitudinal sectional view of the intermediate bearing support frame 5 according to the present invention, and FIG. 3 is also a sectional view in the width direction.
The intermediate bearing support frame 5 shown in FIGS. 2 and 3 is provided between the left end support frame 3 and the right end support frame 4 and supports the intermediate bearing portion 11 of the propeller shaft 10.
The intermediate bearing support pedestal 5 is fixed by engaging a main body 51, a leaf spring 51a on which the main body 51 is supported, and an intermediate bearing support position, and a support 52 that supports the intermediate bearing 11. The support portion fixing portion 53 is provided.
[0023]
The support portion fixing portion 53 is engaged with the support portion 52 and fixed to the main body portion 51, and a first cylinder as an engagement portion moving means for moving the engagement portion 54 up and down. And a cylinder head 55 a of the first cylinder device 55 is joined to the engaging portion 54.
[0024]
The engaging portion 54 has a pair of engaging pieces 54b and 54b whose lower end portions are rotatably supported by the shafts 54a and 54a and whose upper end portions protrude inward, and the pair of engaging pieces 54b and 54b. As shown in FIG. 4, the upper end portions 54 d and 54 d are opened in advance by a spring 54 c, and the engagement portion 54 is held by the first cylinder device 55. When moved downward, when the lower end portions 54e, 54e of the engagement pieces 54b, 54b move from the wide space portion 56 to the narrow space portion 57, the pair of engagement pieces 54b, 54b are closed.
[0025]
The support portion 52 includes a support base 52 a for placing and supporting the intermediate bearing 11, and an engaged portion 52 c having a U-shaped portion 52 b that is engaged with the engagement portion 54 of the support portion fixing portion 53. It has.
When the engaging portion 54 is moved downward by the first cylinder device 55, the upper end portions 54d and 54d of the engaging pieces 54b and 54b and the U-shaped portion 52b of the engaged portion 52c are engaged. Further, when the engaging portion 54 is further pulled downward, a pressing force acts on and fixes the lower surface of the support base 52a and the contact portion 51b of the upper surface of the main body 51. Further, when releasing the engagement between the engagement portion 54 and the engaged portion 52c, the engagement portion 54 is moved upward by the first cylinder device 55, and the lower ends of the engagement pieces 54b, 54b. When the portions 54e and 54e move from the narrow space portion 57 to the wide space portion 56, the upper ends 54d and 54d of the engagement pieces 54b and 54b are opened by the springs 54c and 54c.
[0026]
Here, the support base 52a is attached to the engaged portion 52c by screws 52d and 52d, and is detachable. Therefore, it is possible to use a plurality of support bases 52a with one engaged portion 52c.
[0027]
Further, as shown in FIG. 5, the main body 51 includes a groove 58 as a guide provided at a predetermined length from the intermediate bearing support position in a direction perpendicular to the axial direction of the propeller shaft 10. , A moving part 59 that is slidably attached to the groove part 58 and has a support base 59a for supporting the intermediate bearing 11 on the upper part, and a second cylinder device 60 (moving part moving means for moving the moving part 59) FIG. 2).
The moving part 59 can be moved in the moving direction by the second cylinder device 60 to a position where a support base 59a attached to the moving part 59 reaches the intermediate bearing support position.
[0028]
The moving portion 59 includes a moving portion engaged portion 59c having a U-shaped portion 59b that can be engaged with the engaging portion 54 when moved to the intermediate bearing support position.
Then, after the moving portion 59 has moved to the intermediate bearing support position, the engaging portion 54 is moved downward by the first cylinder device 55, whereby the engaging pieces 54b and 54b and the moving portion engaged portion 59c are moved. And the moving part 59 is fixed to the main body part 51.
[0029]
Here, the support base 59a is attached to the moving portion engaged portion 59c by screws 59d and 59d, and is detachable. Therefore, it is possible to use a plurality of support bases 59a with one moving part engaged part 59c, and also between the support base 52a of the support part 52 and the support base 52a of the moving part 59, It can be used concurrently.
[0030]
Further, the main body 51 is provided with a column 61 protruding upward from the main body 51 further outside the standby position of the moving unit 59, and the upper end portion 61 a of the column 61 has an intermediate bearing support position. An arm 62 is provided so as to protrude in the vertical direction.
A support piece 63 for supporting the intermediate bearing 11 from above is attached to the arm 62 on the extension line of the center line of the intermediate bearing support position, and the support piece 63 is moved up and down by a cylinder device 64. It has become.
[0031]
Next, the exchange operation of the support bases 52a and 59a of the intermediate bearing 11 in the intermediate bearing support base 5 will be described with reference to FIGS.
First, as shown in FIG. 6, a support base 59 a that is frequently used is attached to the moving unit 59 in advance.
Next, the engaged portion 52 c of the support portion 52 is inserted into the wide space portion 56 provided at the intermediate bearing support position of the main body portion 51. Then, as shown in FIG. 4, the engaged portion 52c is positioned between the pair of engaging pieces 54b, 54b of the engaging portion 54.
Next, when the engagement portion 54 is moved downward by the first cylinder device 55 in this state, the lower end portions 54e and 54e of the engagement pieces 54b and 54b are drawn into the narrow space portion 57. The spacing between the upper end portions 54d and 54d of the two engaging pieces 54b and 54b becomes narrow, and comes into contact with the U-shaped portions 52b and 52b of the engaged portion 52c. Further, when the engaging portion 54 is lowered, a pressing force is applied to the contact portion 51 b between the lower surface of the support base 52 a and the upper surface of the main body portion 51, and the support portion 52 is fixed to the main body portion 51.
[0032]
Then, as shown in FIG. 2, the intermediate bearing 11 through which the propeller shaft 10 has passed is placed on the support base 52a, and the upper support piece 63 is lowered to support the intermediate bearing 11 at three points.
After completion of the predetermined test, the intermediate bearing 11 is removed from the support base 52a, and the engaging portion 54 is raised by the first cylinder device 55. Then, the pressing force acting on the contact portion 51b between the lower surface of the support base 52a and the upper surface of the main body 51 is released, and the distance between the upper end portions 54d and 54d of the two engagement pieces 54b and 54b is increased. It gradually spreads and the engagement with the engaged portion 52c is released. In this state, the support portion 52 is removed from the main body portion 51.
[0033]
Next, as shown in FIG. 7, the second cylinder device 60 moves the moving portion 59 until the support base 59a reaches the intermediate bearing support position.
Next, when the engaging portion 54 is moved downward by the first cylinder device 55, the lower end portions 54e and 54e of the engaging pieces 54b and 54b are formed in the narrow space portion 57 by the same mechanism as shown in FIG. The distance between the upper end portions 54d and 54d of the two engagement pieces 54b and 54b becomes narrower as the two engagement pieces 54b and 54b are drawn, and the U-shaped portions 59b and 59b of the moving portion engaged portion 59c of the moving portion 59 are in contact with each other. Touch. Further, when the engaging portion 54 is lowered, a pressing force is applied to the contact portion 51 b between the lower surface of the support base 59 a and the upper surface of the main body portion 51, and the moving portion 59 is fixed to the main body portion 51.
[0034]
Then, the intermediate bearing 11 through which the propeller shaft 10 is passed is placed on the support base 59a, and the upper support piece 63 is lowered to support the intermediate bearing 11 at three points.
After completion of the predetermined test, the intermediate bearing 11 is removed from the support base 59a, and the engaging portion 54 is raised by the first cylinder device 55. Then, the pressing force acting on the contact portion 51b between the lower surface of the support base 59a and the upper surface of the main body 51 is released, and the spacing between the upper end portions 54d and 54d of the two engagement pieces 54b and 54b is increased. It gradually spreads and the engagement with the engaged portion 52c is released. In this state, the second cylinder device 60 moves the moving portion 59 to the standby position.
[0035]
According to the intermediate bearing support frame 5 in the balance testing machine 1 according to the present invention described above, the pair of engaging pieces 54b and 54b whose lower end portions 54e and 54e are rotatably supported are the first cylinder device 55. When the pair of engaging pieces 54b and 54b are closed, the engaging portion 54 is engaged with the U-shaped portion 52b of the engaged portion 52c, and the pair of engaging pieces 54b and 54b are opened and closed by the vertical movement. Since the engagement of the engaged portion 52c with the U-shaped portion 52b is released at the time of opening, the support portion 52 can be easily fixed as compared with the conventional fixing by screwing. It becomes easy to release the fixing, and it is possible to efficiently test even a small number of various types of propeller shafts 10.
[0036]
Further, since the moving part 59 having the support base 59a is moved along the groove part 58 to the intermediate bearing support position by the second cylinder device 60, for example, the frequently used support base 59a is fixed to the movement part 59. Since the support portion 52 is removed and the moving portion 59 is moved to the intermediate bearing support position at the same time, when the support base 52a is replaced, it is not always necessary to attach and detach the support portion 52, and the support base can be efficiently replaced. 52a and 59a can be exchanged.
Furthermore, since the moving part 59 includes a moving part engaging part 59c that can be engaged with the engaging part 54 when moving to the intermediate bearing support position, the moving part 59 is moved by the vertical movement of the first cylinder device 55. Can be securely fixed to the intermediate bearing support position.
[0037]
In addition, the shape and engagement mechanism of the engaging portion and the engaged portion are not limited to those shown in the above embodiment, and may be any shape and mechanism that can be engaged by the vertical movement of the first cylinder device. Any thing is acceptable.
[0038]
【The invention's effect】
According to the first aspect of the present invention, the support portion is engaged by the engagement portion of the main body portion of the intermediate bearing support frame and the engaged portion of the support portion based on the vertical movement by the engagement portion moving means. Since it is fixed to the main body, it is easy to fix the support part as compared with conventional fixing by screwing, and the fixing of the support part is also released based on the vertical movement by the engaging part moving means. As a result, it is possible to efficiently test even a wide variety of test objects.
[0039]
According to the second aspect of the present invention, the pair of engaging pieces whose lower end portions are rotatably supported are opened and closed by the vertical movement of the engaging portion moving means, and the engaging portions are closed when the pair of engaging pieces are closed. Since the engagement with the engaged portion is released when the pair of engaging pieces are opened, the same effect as the invention according to claim 1 can be obtained. Of course, in particular, the mechanism can be fixed and released reliably with a relatively simple mechanism.
[0040]
According to invention of Claim 3, since the moving part which has a support stand is moved along a guide part to an intermediate bearing support position by a moving part moving means, after removing a support part in an intermediate bearing support position, By moving the moving part to the intermediate bearing support position, the support part can be exchanged more efficiently.
Specifically, a frequently used support base is fixed to the upper part of the moving part, and the removable support part is removed, and at the same time, the moving part is moved to the intermediate bearing support position by the moving part moving means. When exchanging the base, it is not always necessary to attach and detach the support portion for replacement, and the support base can be efficiently exchanged.
[0041]
According to the fourth aspect of the present invention, since the moving portion includes the second engaging portion that can be engaged with the engaging portion when moving to the intermediate bearing support position, The moving part can be reliably fixed to the intermediate bearing support position by the movement.
[0042]
According to the invention described in claim 5, since the support base is detachable, the support base of the support portion and the support base of the moving portion can be used together.
In addition, it is not always necessary to match the number of engaged parts and moving parts to the number of support bases, and the engaged parts and moving parts can be used for a plurality of support bases, thereby reducing costs. I can do it.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram schematically showing a balance testing machine according to the present invention.
FIG. 2 is a longitudinal sectional view of an intermediate bearing support frame 5 according to the present invention.
FIG. 3 is a cross-sectional view in the width direction of an intermediate bearing support frame 5 according to the present invention.
4 is a cross-sectional view taken along the line AA in FIG. 1;
5 is a cross-sectional view taken along the line BB in FIG.
FIG. 6 is a longitudinal sectional view of the intermediate bearing support frame 5 according to the present invention, showing a state before the support portion is inserted.
FIG. 7 is a longitudinal sectional view of an intermediate bearing support frame 5 according to the present invention, and shows a state where a moving part has been moved to an intermediate bearing support position.
FIG. 8 is an overall configuration diagram schematically showing a conventional balance testing machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Balance testing machine 2 Base 5 Intermediate bearing support stand 10 Propeller shaft 11 Intermediate bearing 51 Main body part 52 Support part 52a Support base 52b U-shaped part 52c Engagement part 52d Screw 54 Engagement part 55 1st cylinder apparatus ( Engaging part moving means)
59 moving part 59a support base 59b U-shaped part 59c moving part engaged part 59d screw

Claims

An intermediate bearing support frame that is attached to the base of the balance testing machine and that can replace the support portion that supports the intermediate bearing that is attached to the device under test.
The intermediate bearing support frame includes a main body part,
An engagement portion provided on the main body portion, and engaged with the support portion to fix the support portion to the main body portion;
Engagement portion moving means for moving the engagement portion up and down,
The support portion includes a support base for placing and supporting the intermediate bearing on an upper portion thereof, and an engaged portion engaged with the engagement portion on a lower portion thereof,
The intermediate bearing support gantry characterized in that the engagement portion and the engaged portion are engaged and released based on the vertical movement of the engagement portion moving means.

The engaging portion has a pair of engaging pieces whose lower end portions are rotatably supported,
The pair of engagement pieces are opened and closed by the vertical movement of the engagement portion moving means, and when the pair of engagement pieces are closed, the pair of engagement pieces are engaged with the engaged portion and when the pair of engagement pieces are opened. The intermediate bearing support frame according to claim 1, wherein the intermediate bearing support frame is configured to be disengaged from the engaged portion.

The main body portion is horizontally and perpendicular to the axial direction of the device under test, and a guide portion provided at a predetermined length from the intermediate bearing support position;
A moving part slidably attached to the guide part and having the support on the upper part;
Moving part moving means for moving the support of the moving part to the intermediate bearing support position;
The intermediate bearing support frame according to claim 1 or 2, further comprising:

The intermediate portion according to any one of claims 1 to 3, wherein the moving portion includes a moving portion engaged portion that can be engaged with the engaging portion when moving to the intermediate bearing support position. Bearing support frame.

The intermediate bearing support frame according to any one of claims 1 to 4, wherein the support table is detachable.