JP2006300116A - Shaft connection structure - Google Patents

Shaft connection structure Download PDF

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JP2006300116A
JP2006300116A JP2005119137A JP2005119137A JP2006300116A JP 2006300116 A JP2006300116 A JP 2006300116A JP 2005119137 A JP2005119137 A JP 2005119137A JP 2005119137 A JP2005119137 A JP 2005119137A JP 2006300116 A JP2006300116 A JP 2006300116A
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Japan
Prior art keywords
shaft
movable
supported
spline shaft
bearing
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JP2005119137A
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JP4529776B2 (en
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Masanobu Tsuji
政信 辻
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Priority to JP2005119137A priority Critical patent/JP4529776B2/en
Priority to CNB2005101186719A priority patent/CN100554912C/en
Priority to KR1020050105170A priority patent/KR100659524B1/en
Publication of JP2006300116A publication Critical patent/JP2006300116A/en
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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/101—Quick-acting couplings in which the parts are connected by simply bringing them together axially without axial retaining means rotating with the coupling
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/12—Mounting or assembling

Abstract

<P>PROBLEM TO BE SOLVED: To easily connect a male spline shaft to a connected shaft of a specimen even if these shafts are not aligned with each other and to absorb vibration. <P>SOLUTION: The male spline shaft 4 and the connected shaft 12 of the specimen 1 are connected to each other through a universal joint 5 and a female spline shaft 7. A support part 21 is supported on a suspending part 14 movably supported in the axial direction of the connected shaft 12 movably in the direction perpendicular to the axis of the connected shaft 12. The movement of the support part 21 is constrained by a first floating spring 29. Furthermore, the female spline shaft 7 is supported by rotating bearings 18, the rotating bearings 18 are supported by spherical bearings 20, a movable shaft 24 connected to the spherical bearings 20 at its lower part is vertically movably inserted into the support part 21, and a balance spring 25 is installed between the movable shaft 24 and the support part 21. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、供試体の軸位置が不安定又は機種により変化する場合の軸連結構造に関するものである。   The present invention relates to a shaft coupling structure when the shaft position of a specimen is unstable or changes depending on the model.

特許文献１においては、駆動モータに連結されたトランスミッションとフライホイルとの連結に際して、この両者を可撓軸継手及びスプライン構造を介して連結したものが示されている。又、特許文献２においては、エンジンと動力計との連結に際して、やはり可撓軸継手及びスプライン構造を介して連結したものが示されている。   In Patent Literature 1, when a transmission connected to a drive motor and a flywheel are connected, the two are connected via a flexible shaft joint and a spline structure. In Patent Document 2, the connection between the engine and the dynamometer is also shown through a flexible shaft joint and a spline structure.

図４は従来の他の軸連結構造の正面図を示し、ライン用エンジンテスタ等においては、エンジン等の供試体１は架台２上にラバーマウント３を介して設置され、供試体１の出力側にはオススプライン軸４が設けられる。５は動力計の入力軸等の被連結軸１２と一端が連結されたユニバーサルジョイントであり、ユニバーサルジョイント５の他端は連結軸１３を介してメススプライン軸７と連結され、連結軸１３は結合軸受６により回転自在に支持され、結合軸受６は支持部９により移動自在に支持された移動台８に取付けられ、移動台８にはシリンダー装置１０のピストンロッド１１が連結される。被連結軸１２は、軸方向の移動が可能である。   FIG. 4 shows a front view of another conventional shaft coupling structure. In a line engine tester or the like, a specimen 1 such as an engine is installed on a frame 2 via a rubber mount 3, and the output side of the specimen 1 is shown. Is provided with a male spline shaft 4. Reference numeral 5 denotes a universal joint whose one end is connected to a connected shaft 12 such as an input shaft of a dynamometer. The other end of the universal joint 5 is connected to the female spline shaft 7 via a connecting shaft 13. The bearing 6 is rotatably supported by the bearing 6, and the coupling bearing 6 is attached to a movable table 8 that is movably supported by a support portion 9, and a piston rod 11 of a cylinder device 10 is connected to the movable table 8. The connected shaft 12 can move in the axial direction.

上記構成において、供試体１のオススプライン軸４と動力計の入力軸等の被連結軸１２との連結に際しては、シリンダー装置１０のピストンロッド１１の軸方向の駆動により結合軸受６を動かし、メススプライン軸７を押圧してオススプライン軸４とスプライン嵌合させる。図５の軸連結構造においては、供試体１の軸位置が変化して、オススプライン軸４と被連結軸１２とが芯ずれを生じても、ユニバーサルジョイント５によりこの芯ずれを吸収する。
実公平１−７８５３号公報 実公平２−１０４３２号公報 In the above configuration, when the male spline shaft 4 of the specimen 1 and the coupled shaft 12 such as the input shaft of the dynamometer are coupled, the coupling bearing 6 is moved by driving the piston rod 11 of the cylinder device 10 in the axial direction, and the female The spline shaft 7 is pressed to engage the male spline shaft 4 with the spline. In the shaft coupling structure of FIG. 5, even if the axial position of the specimen 1 changes and the male spline shaft 4 and the coupled shaft 12 are misaligned, the universal joint 5 absorbs this misalignment.
No. 1-7853 Japanese Utility Model Publication No. 2-10432

しかしながら、図4に示した従来の軸連結構造においては、供試体１がエンジンの場合、ラバーマウント３上に載置されるので、軸位置が±１ｍｍ程度の精度となり、ユニバーサルジョイント５を用いても芯ずれを十分に吸収することができなかった。又、搬送用パレットにしても、芯出し精度の高いものを用意しなければならず、高価となった。一方、結合軸受６は中心位置は固定であるので、供試体１のオススプライン軸４とメススプライン軸７との結合が容易でなかった。さらに、連結軸１３は１分間に６０００〜８０００回転するため、結合軸受６は芯ずれによる振動を受け、耐久性が劣ることになった。   However, in the conventional shaft coupling structure shown in FIG. 4, when the specimen 1 is an engine, it is placed on the rubber mount 3, so that the shaft position has an accuracy of about ± 1 mm, and the universal joint 5 is used. However, the misalignment could not be absorbed sufficiently. Moreover, even if it is a pallet for conveyance, a high centering accuracy has to be prepared, which is expensive. On the other hand, since the center position of the coupling bearing 6 is fixed, it is not easy to couple the male spline shaft 4 and the female spline shaft 7 of the specimen 1. Furthermore, since the connecting shaft 13 rotates 6000 to 8000 per minute, the combined bearing 6 is subjected to vibration due to misalignment, resulting in poor durability.

この発明は上記のような課題を解決するために成されたものであり、芯ずれが生じても軸連結が容易であるとともに、振動を吸収することができる軸連結構造を得ることを目的とする。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a shaft coupling structure that can easily couple a shaft even when misalignment occurs and can absorb vibration. To do.

この発明の請求項１に係る軸連結構造は、供試体のオススプライン軸と軸方向移動可能な被連結軸とをユニバーサルジョイント及びメススプライン軸を介して連結する軸連結構造において、被連結軸の軸方向に移動自在に支持された吊部と、吊部に被連結軸の軸直角方向に移動自在に支持された支持部と、支持部の移動を規制する第１のフローティングスプリングと、メススプライン軸を回転自在に支持する回転軸受と、回転軸受を球面により支持する球面軸受と、下端が球面軸受と連結されるとともに、支持部に上下方向移動自在に挿通され、かつ支持部との間にバランススプリングが設けられた可動軸とを備えたものである。   A shaft coupling structure according to claim 1 of the present invention is a shaft coupling structure in which a male spline shaft of a specimen and a shaft to be coupled that can move in the axial direction are coupled via a universal joint and a female spline shaft. A suspension part supported movably in the axial direction, a support part supported by the suspension part so as to be movable in the direction perpendicular to the axis of the connected shaft, a first floating spring for restricting movement of the support part, and a female spline A rotary bearing that rotatably supports the shaft, a spherical bearing that supports the rotary bearing by a spherical surface, and a lower end that is coupled to the spherical bearing and that is inserted through the support portion so as to be vertically movable and between the support portion. And a movable shaft provided with a balance spring.

請求項２に係る軸連結構造は、供試体のオススプライン軸と軸方向移動可能な被連結軸とをユニバーサルジョイント及びメススプライン軸を介して連結する軸連結構造において、被連結軸の軸方向に移動自在に支持された吊部と、吊部に被連結軸の軸直角方向に移動自在に支持された支持部と、支持部の移動を規制する第１のフローティングスプリングと、支持部に上下動自在に挿通されるとともに、支持部との間にバランススプリングが設けられた可動軸と、メススプライン軸を回転自在に支持する回転軸受と、回転軸受を水平方向に突出した回転軸を介して回転自在に支持するとともに、可動軸に水平方向回転自在に支持された支持部材と、回転軸受の回転を規制する第２のフローティングスプリングと、支持部材の回転を規制する第３のフローティングスプリングとを備えたものである。   The shaft coupling structure according to claim 2 is a shaft coupling structure in which the male spline shaft of the specimen and the coupled shaft that can move in the axial direction are coupled via a universal joint and a female spline shaft, in the axial direction of the coupled shaft. A suspension part that is movably supported, a support part that is movably supported by the suspension part in a direction perpendicular to the axis of the connected shaft, a first floating spring that restricts movement of the support part, and a vertical movement of the support part The shaft is freely inserted and a movable shaft provided with a balance spring between the support portion, a rotary bearing that rotatably supports the female spline shaft, and a rotary shaft that rotates through a rotary shaft that protrudes in the horizontal direction. A support member that is freely supported and supported by the movable shaft so as to be horizontally rotatable, a second floating spring that restricts rotation of the rotary bearing, and a third that restricts rotation of the support member It is obtained by a floating spring.

以上のようにこの発明の請求項1によれば、被連結軸の軸方向に移動自在に支持された吊部に支持部を被連結軸の軸直角方向に移動自在に支持し、またメススプライン軸を回転自在に支持する回転軸受を球面軸受により支持し、下端が球面軸受と連結された可動軸を支持部に上下方向移動自在に挿通し、支持部との間にバランススプリングを設けており、メススプライン軸は被連結軸の軸方向、被連結軸の軸直角方向及びその回転方向、上下方向及びその回転方向の５つの自由度を有する支持機構により支持され、供試体のオススプライン軸と被連結軸との軸芯が３０ｍｍ程度異なっていてもオススプライン軸とメススプライン軸との連結を容易に行なうことができる。又、支持部の移動を規制する第１のフローティングスプリングを設けるとともに、支持部と可動軸との間にバランススプリングを設けたので、供試体がエンジン等の振動を発生するものである場合にも振動を吸収し、耐久性を高めることができる。   As described above, according to the first aspect of the present invention, the support portion is supported by the suspension portion that is supported so as to be movable in the axial direction of the connected shaft so as to be movable in the direction perpendicular to the axis of the connected shaft. A rotary bearing that rotatably supports the shaft is supported by a spherical bearing, a movable shaft whose lower end is connected to the spherical bearing is inserted into the support portion so as to be movable in the vertical direction, and a balance spring is provided between the support portion. The female spline shaft is supported by a support mechanism having five degrees of freedom in the axial direction of the coupled shaft, the direction perpendicular to the coupled shaft, the rotational direction, the vertical direction, and the rotational direction. The male spline shaft and the female spline shaft can be easily connected even if the axis of the connected shaft differs by about 30 mm. In addition, since the first floating spring that restricts the movement of the support portion is provided and the balance spring is provided between the support portion and the movable shaft, the specimen may generate vibrations of the engine or the like. Absorbs vibration and enhances durability.

又、請求項2によれば、被連結軸の軸方向に移動自在な吊部に支持部を被連結軸の軸直角方向に移動自在に支持し、この支持部に上下動自在に挿通されるとともに、支持部との間にバランススプリングが設けられた可動軸に水平方向回転自在に支持部材を支持し、支持部材によりメススプライン軸を回転自在に支持する回転軸受の水平方向に突出した回転軸を回転自在に支持しており、メススプライン軸は被連結軸の軸方向、軸直角方向及びその回転方向、上下方向及びその回転方向の５つの自由度を有する支持機構により支持され、供試体のオススプライン軸と被連結軸との軸芯が３０ｍｍ程度異なっていてもオススプライン軸とメススプライン軸との連結を容易に行なうことができる。又、支持部の移動、回転軸受の回転及び支持部材の回転をそれぞれ規制する各フローティングスプリングを設けるとともに、支持部と可動軸との間にバランススプリングを設けたので、供試体がエンジン等の振動を発生するものである場合にも振動を吸収し、耐久性を高めることができる。   According to claim 2, the support portion is supported by the suspension portion that is movable in the axial direction of the connected shaft so as to be movable in the direction perpendicular to the axis of the connected shaft, and is inserted into the support portion so as to be movable up and down. In addition, a rotating shaft that protrudes in the horizontal direction of a rotary bearing that supports a supporting member rotatably in a horizontal direction on a movable shaft provided with a balance spring between the supporting portion and rotatably supports a female spline shaft by the supporting member. The female spline shaft is supported by a support mechanism having five degrees of freedom in the axial direction of the connected shaft, the direction perpendicular to the axis, the rotational direction, the vertical direction, and the rotational direction. The male spline shaft and the female spline shaft can be easily connected even if the male spline shaft and the shaft to be connected are different by about 30 mm. In addition, each floating spring that regulates the movement of the support part, the rotation of the rotary bearing, and the rotation of the support member is provided, and a balance spring is provided between the support part and the movable shaft, so that the specimen is a vibration of the engine etc. Even in the case of generating the vibration, the vibration can be absorbed and the durability can be enhanced.

実施最良形態１
以下、この発明を実施するための最良の形態を図面とともに説明する。図１はこの発明の実施最良形態１による軸連結構造の縦断正面図を示し、１４は取付部材１５の取付レール１５ａに左右方向（被連結軸１２の軸方向）移動自在に支持された吊部、１６は同じく取付部材１５に支持されたシリンダー装置であり、そのピストンロッド１７が吊部１４に連結されている。吊部１４の下部には、支持部２１がＬＭガイド２２を介して前後方向（被連結軸１２の軸直角方向）移動自在に支持される。又、支持部２１の移動を規制する第１のフローティングスプリングが設けられる。この部分については実施最良形態２においても同一構造であるので、実施最良形態２において説明する。１８は軸受１９を介してメススプライン軸７を回転自在に支持する回転軸受であり、回転軸受１８は球面軸受２０により球面により支持される。又、支持部２１には上下方向移動用軸受２３が設けられ、軸受２３には下端が球面軸受２０に取付けられた可動軸２４が挿通され、その頭部２４ａと支持部２１との間には振動吸収用のバランススプリング２５が設けられている。 Best Embodiment 1
The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 shows a longitudinal front view of a shaft coupling structure according to the first embodiment of the present invention. Reference numeral 14 denotes a hanging portion supported on a mounting rail 15a of a mounting member 15 so as to be movable in the left-right direction (axial direction of the coupled shaft 12). , 16 is a cylinder device supported by the mounting member 15, and its piston rod 17 is connected to the hanging portion 14. A support portion 21 is supported by a lower portion of the suspension portion 14 via an LM guide 22 so as to be movable in the front-rear direction (a direction perpendicular to the axis of the connected shaft 12). In addition, a first floating spring that restricts the movement of the support portion 21 is provided. Since this part has the same structure in the second embodiment, it will be described in the second embodiment. Reference numeral 18 denotes a rotary bearing that rotatably supports the female spline shaft 7 via a bearing 19. The rotary bearing 18 is supported by a spherical surface by a spherical bearing 20. The support portion 21 is provided with a vertical movement bearing 23, and a movable shaft 24 having a lower end attached to the spherical bearing 20 is inserted into the bearing 23, and between the head portion 24 a and the support portion 21. A balance spring 25 for absorbing vibration is provided.

上記構成において、被連結軸１２は軸方向移動自在であり、ユニーバーサルジョイント５を介してメススプライン軸７と連結され、メススプライン軸７は供試体１のオススプライン軸４と連結、離脱する。吊部１４はシリンダー装置１６の駆動により左右方向に移動自在であり、支持部２１はＬＭガイド２２を介して前後方向に移動自在であり、可動軸２４は上下方向に移動自在である。従って、球面軸受２０は左右、前後、上下方向に移動自在となり、球面軸受２０により支持されたメススプライン軸７は上下方向を軸とした回転方向及び前後方向を軸とした回転方向にも移動自在となり、５自由度を有することとなる。   In the above configuration, the connected shaft 12 is axially movable and is connected to the female spline shaft 7 via the universal joint 5, and the female spline shaft 7 is connected to and disconnected from the male spline shaft 4 of the specimen 1. The suspension part 14 is movable in the left-right direction by driving the cylinder device 16, the support part 21 is movable in the front-rear direction via the LM guide 22, and the movable shaft 24 is movable in the vertical direction. Accordingly, the spherical bearing 20 is movable in the left and right, front and rear, and up and down directions, and the female spline shaft 7 supported by the spherical bearing 20 is movable in the rotation direction about the vertical direction and the rotation direction about the front and rear direction. And has five degrees of freedom.

実施最良形態1においては、供試体１のオススプライン軸４とスプライン嵌合するメススプライン軸7を支持する支持機構が５自由度を有するものであるので、供試体１のオススプライン軸４と被連結軸１２との軸芯が３０ｍｍ程度異なってもオススプライン軸４とメススプライン軸７との連結を容易に行なうことができる。又、支持部２１の移動を規制する第１のフローティングスプリングを設けるとともに、支持部２１と可動軸２４との間にバランススプリング２５を設けたので、供試体１が振動を発生するものであっても、これらのスプリングによって吸収することができ、耐久性を高めることができる。   In the first embodiment, since the support mechanism for supporting the female spline shaft 7 that is spline-fitted with the male spline shaft 4 of the specimen 1 has five degrees of freedom, the male spline shaft 4 of the specimen 1 The male spline shaft 4 and the female spline shaft 7 can be easily connected even if the axis of the connecting shaft 12 differs by about 30 mm. In addition, since the first floating spring for restricting the movement of the support portion 21 is provided and the balance spring 25 is provided between the support portion 21 and the movable shaft 24, the specimen 1 generates vibration. Can be absorbed by these springs, and durability can be enhanced.

実施最良形態２
図2及図3は実施最良形態2による軸連結構造の縦断側面図及び要部斜視図を示し、２６は架台、２７は架台２６上に立設されたブラケットであり、ブラケット２７には取付部材１５が取り付けられ、その取付レール１５ａには吊部１４が被連結軸１２の軸方向(図3の矢印Ａ方向）に移動自在に取り付けられ、吊部１４にはシリンダー機構１６のピストンロッド１７が連結される。吊部１４の下部にはＬＭガイド２２を介して支持部２１が被連結軸１２の軸直角方向（図３の矢印Ｂ方向）に移動自在に支持され、ＬＭガイド２２に連結された摺動軸２８には支持部２１の移動を規制する第１のフローティングスプリング２９が設けられる。 Embodiment 2
FIGS. 2 and 3 show a longitudinal side view and a perspective view of a main part of the shaft coupling structure according to the second embodiment, wherein 26 is a frame, 27 is a bracket erected on the frame 26, and the bracket 27 has an attachment member. 15 is attached to the attachment rail 15a so that the suspension part 14 is movable in the axial direction of the connected shaft 12 (in the direction of arrow A in FIG. 3), and the piston rod 17 of the cylinder mechanism 16 is attached to the suspension part 14. Connected. A support portion 21 is supported on the lower portion of the suspension portion 14 via an LM guide 22 so as to be movable in a direction perpendicular to the axis of the connected shaft 12 (in the direction of arrow B in FIG. 3), and is connected to the LM guide 22. 28 is provided with a first floating spring 29 for restricting the movement of the support portion 21.

一方、メススプライン軸７は回転軸受３０により回転自在に支持され、回転軸受３０の両側から水平方向に突出した回転軸３０ａは軸受３２を介して支持部材３１により図３の矢印Ｃ方向（矢印Ｂ方向の回転方向）に回転自在に支持される。３３は回転軸受３０の回転を規制する第２のフローティングスプリングである。可動軸２４はスライド部２４ｂを一体に有しており、スライド部２４ｂは支持部２１と一体のスライドガイド２１ａに上下動（図３の矢印Ｄ方向）自在に挿通されるとともに、可動軸２４と支持部２１との間にはバランススプリング２５が設けられる。可動軸２４、バランススプリング２５、スライドガイド２１ａ及びスライド部２４ｂは吊部１４に設けた大きな孔１４ａに挿通され、可動軸２４及びそのスライド部２４ｂは支持部２１にも挿通され、可動軸２４の下端には軸受３４を介して支持部材３１が水平方向（Ｅ方向、即ちＤ方向の回転方向）回転自在に支持される。３５は支持部材３１の回転を規制する第３のフローティングスプリングである。   On the other hand, the female spline shaft 7 is rotatably supported by a rotary bearing 30, and the rotary shaft 30 a protruding horizontally from both sides of the rotary bearing 30 is supported by a support member 31 via a bearing 32 in the direction of arrow C (arrow B in FIG. 3). In the direction of rotation). Reference numeral 33 denotes a second floating spring that restricts the rotation of the rotary bearing 30. The movable shaft 24 integrally has a slide portion 24b. The slide portion 24b is inserted into a slide guide 21a integral with the support portion 21 so as to freely move up and down (in the direction of arrow D in FIG. 3). A balance spring 25 is provided between the support portion 21 and the support portion 21. The movable shaft 24, the balance spring 25, the slide guide 21 a and the slide portion 24 b are inserted into a large hole 14 a provided in the hanging portion 14, and the movable shaft 24 and its slide portion 24 b are also inserted into the support portion 21. A support member 31 is supported at the lower end via a bearing 34 so as to be rotatable in the horizontal direction (E direction, ie, the rotational direction in the D direction). Reference numeral 35 denotes a third floating spring that restricts the rotation of the support member 31.

実施最良形態２においては、支持部２１が被連結軸１２の軸方向及び軸直角方向に移動自在に支持されるとともに、可動軸２４は支持部２１に上下動可能に支持され、支持部材３１は可動軸２４に水平方向回転自在に支持され、また回転軸受３０は支持部材３１により回転自在に支持される。従って、実施最良形態２においては、メススプライン軸７が５自由度を有する支持機構により支持されていることになり、供試体１のオススプライン軸４と被連結軸１２の軸芯が３０ｍｍ程度異なっていても容易に連結することができる。又、バランススプリング２５及び各フローティングスプリング２９，３３，３５を設けたことにより、供試体１が振動を発生するものであっても、これらのスプリングにより吸収することができ、軸連結構造の耐久性を向上することができる。   In the second embodiment, the support portion 21 is supported so as to be movable in the axial direction and the direction perpendicular to the axis of the coupled shaft 12, the movable shaft 24 is supported by the support portion 21 so as to be movable up and down, and the support member 31 is The movable shaft 24 is supported so as to be rotatable in the horizontal direction, and the rotary bearing 30 is supported by the support member 31 so as to be rotatable. Therefore, in the second embodiment, the female spline shaft 7 is supported by a support mechanism having five degrees of freedom, and the axis of the male spline shaft 4 of the specimen 1 and the connected shaft 12 are different by about 30 mm. Can be easily connected. Further, by providing the balance spring 25 and the floating springs 29, 33, and 35, even if the specimen 1 generates vibrations, it can be absorbed by these springs, and the durability of the shaft coupling structure Can be improved.

この発明の実施最良形態１による軸連結構造の縦断正面図である。It is a vertical front view of the shaft connection structure by Embodiment 1 of this invention. 実施最良形態２による軸連結構造の縦断側面図である。It is a vertical side view of the shaft connection structure by Embodiment 2. 実施最良形態２による軸連結構造の要部斜視図である。It is a principal part perspective view of the shaft connection structure by Embodiment 2. FIG. 従来の軸連結構造の正面図である。It is a front view of the conventional shaft connection structure.

符号の説明Explanation of symbols

１…供試体
４…オススプライン軸
５…ユニバーサルジョイント
７…メススプライン軸
１２…被連結軸
１４…吊部
１５…取付部材
１６…シリンダー装置
１７…ピストンロッド
１８，３０…回転軸受
１９，２３，３２，３４…軸受
２０…球面軸受
２１…支持部
２２…ＬＭガイド
２４…可動軸
２５…バランススプリング
２９，３３，３５…フローティングスプリング
３０ａ…回転軸
３１…支持部材
DESCRIPTION OF SYMBOLS 1 ... Specimen 4 ... Male spline shaft 5 ... Universal joint 7 ... Female spline shaft 12 ... Connected shaft 14 ... Hanging part 15 ... Mounting member 16 ... Cylinder device 17 ... Piston rod 18, 30 ... Rotary bearing 19, 23, 32 34 ... Bearing 20 ... Spherical bearing 21 ... Supporting part 22 ... LM guide 24 ... Movable shaft 25 ... Balance spring 29, 33, 35 ... Floating spring 30a ... Rotating shaft 31 ... Support member

Claims (2)

供試体のオススプライン軸と軸方向移動可能な被連結軸とをユニバーサルジョイント及びメススプライン軸を介して連結する軸連結構造において、被連結軸の軸方向に移動自在に支持された吊部と、吊部に被連結軸の軸直角方向に移動自在に支持された支持部と、支持部の移動を規制する第１のフローティングスプリングと、メススプライン軸を回転自在に支持する回転軸受と、回転軸受を球面により支持する球面軸受と、下端が球面軸受と連結されるとともに、支持部に上下方向移動自在に挿通され、かつ支持部との間にバランススプリングが設けられた可動軸とを備えたことを特徴とする軸連結構造。   In a shaft connection structure that connects a male spline shaft of a specimen and a connected shaft that can move in the axial direction via a universal joint and a female spline shaft, a hanging portion that is supported movably in the axial direction of the connected shaft; A support part supported by the suspension part so as to be movable in a direction perpendicular to the axis of the connected shaft, a first floating spring for restricting the movement of the support part, a rotary bearing for rotatably supporting the female spline shaft, and a rotary bearing A spherical bearing that supports the spherical surface, and a movable shaft that is connected to the spherical bearing at the lower end, is inserted in the support portion so as to be movable in the vertical direction, and is provided with a balance spring between the support portion. A shaft coupling structure characterized by 供試体のオススプライン軸と軸方向移動可能な被連結軸とをユニバーサルジョイント及びメススプライン軸を介して連結する軸連結構造において、被連結軸の軸方向に移動自在に支持された吊部と、吊部に被連結軸の軸直角方向に移動自在に支持された支持部と、支持部の移動を規制する第１のフローティングスプリングと、支持部に上下動自在に挿通されるとともに、支持部との間にバランススプリングが設けられた可動軸と、メススプライン軸を回転自在に支持する回転軸受と、回転軸受を水平方向に突出した回転軸を介して回転自在に支持するとともに、可動軸に水平方向回転自在に支持された支持部材と、回転軸受の回転を規制する第２のフローティングスプリングと、支持部材の回転を規制する第３のフローティングスプリングとを備えたことを特徴とする軸連結構造。   In a shaft connection structure that connects a male spline shaft of a specimen and a connected shaft that can move in the axial direction via a universal joint and a female spline shaft, a hanging portion that is supported movably in the axial direction of the connected shaft; A support portion supported by the suspension portion so as to be movable in a direction perpendicular to the axis of the connected shaft; a first floating spring for restricting the movement of the support portion; A movable shaft provided with a balance spring between the rotary shaft, a rotary bearing that rotatably supports the female spline shaft, and a rotary bearing that rotatably supports the rotary shaft that protrudes in the horizontal direction. A support member supported so as to freely rotate in a direction, a second floating spring for restricting rotation of the rotary bearing, and a third floating spring for restricting rotation of the support member; Shaft connecting structure characterized by comprising.
JP2005119137A 2005-04-18 2005-04-18 Shaft coupling structure Expired - Fee Related JP4529776B2 (en)

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KR1020050105170A KR100659524B1 (en) 2005-04-18 2005-11-04 Axis connecting structure

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CN100554912C (en) 2009-10-28
CN1854704A (en) 2006-11-01
KR100659524B1 (en) 2006-12-19
JP4529776B2 (en) 2010-08-25
KR20060109811A (en) 2006-10-23

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