JP2645498B2 - Shaft joint structure of advanced composite material shaft - Google Patents
Shaft joint structure of advanced composite material shaftInfo
- Publication number
- JP2645498B2 JP2645498B2 JP1107700A JP10770089A JP2645498B2 JP 2645498 B2 JP2645498 B2 JP 2645498B2 JP 1107700 A JP1107700 A JP 1107700A JP 10770089 A JP10770089 A JP 10770089A JP 2645498 B2 JP2645498 B2 JP 2645498B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- composite material
- pressure vessel
- acm
- advanced composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は軸継手構造に関するものである。さらに詳し
く言えば、先端複合材料（Advanced Composite Materia
ls…以下「ACM」という）製軸の軸継手構造に関するも
のである。Description: TECHNICAL FIELD The present invention relates to a shaft coupling structure. More specifically, Advanced Composite Materia
ls ... hereinafter referred to as "ACM").
（従来技術） 第２図は公知の鍛鋼製プロペラ軸を示す。プロペラ軸
はプロペラ８が先端に取付けられるプロペラシャフト９
と中間シャフト10で構成されている。そしてプロペラシ
ャフト９は中間シャフト10を介し駆動エンジン11に連結
されている。中間シャフト10とプロペラシャフト９間の
軸継手12は夫々の軸に設けたフランジ12aと12bをボルト
13で結合することにより構成されている。(Prior Art) FIG. 2 shows a known forged steel propeller shaft. The propeller shaft has a propeller shaft 9 to which a propeller 8 is attached at the tip.
And an intermediate shaft 10. The propeller shaft 9 is connected to a drive engine 11 via an intermediate shaft 10. The shaft coupling 12 between the intermediate shaft 10 and the propeller shaft 9 bolts the flanges 12a and 12b provided on the respective shafts.
It is composed by combining at 13.
このような鍛鋼製のプロペラ軸を使用した場合、軸の
もつ剛性は、強度的に最適に設計された軸系に対し、多
用回転数域に過大な捩り振動を生じさせてしまうような
結果をもたらすことが多々ある。こうした現象は回転数
の低回転化が進んできた昨今特に顕著となってきてい
る。例えば載荷重量が８万トン程度の船の場合は、第３
図と第４図に示すように、プロペラシャフト９も中間シ
ャフト10も比較的多用される港内航行速度付近の回転域
で危険共振域があり、操船のしにくい船となっているこ
とがわかる。When such a forged steel propeller shaft is used, the rigidity of the shaft may result in excessive torsional vibration in the multiple speed range, compared to the shaft system designed optimally for strength. There are many things to bring. These phenomena have become particularly remarkable in recent years when the rotation speed has been reduced. For example, in the case of a ship with a load capacity of about 80,000 tons,
As shown in FIG. 4 and FIG. 4, it can be seen that both the propeller shaft 9 and the intermediate shaft 10 have a dangerous resonance region in the rotation region near the port traveling speed, which is relatively frequently used, making the ship difficult to maneuver.
そこで、第５図に示すような鍛鋼製シャフトに代え、
ACM繊維（いわゆるカーボン繊維など）を芯筒に何層に
も巻き付けて作製したACM製シャフト14が発明された。
これは鍛鋼製のシャフトに比し強度の割に非常に剛性が
少ないので、共振回転数を運転領域から外すことが容易
となる。Therefore, instead of a forged steel shaft as shown in FIG.
An ACM shaft 14 in which ACM fibers (so-called carbon fibers and the like) are wound around a core tube in multiple layers has been invented.
This is very low in rigidity for the strength compared to the shaft made of forged steel, so that it is easy to remove the resonance speed from the operating range.
第６図と第７図はこのようなACM製シャフト14の公知
継手構造を示す（NAVAL ENGINEERS JOURNAL,JUL 198
6）。第６図ではACM製シャフト14の端部に鋼製フランジ
15aと15bを内と外に嵌挿し、ボルト挿通孔を明け、これ
にボルト16を通して固着している。6 and 7 show a known joint structure of such an ACM shaft 14 (NAVAL ENGINEERS JOURNAL, JUL 198).
6). In FIG. 6, a steel flange is attached to the end of the shaft 14 made of ACM.
15a and 15b are fitted inside and outside, a bolt insertion hole is made, and a bolt 16 is fixed to this.
又第７図ではACM製シャフト14の継手部の内・外にス
リーブ17,18を嵌め、これ又ボルト挿通孔を明け、これ
にボルト19を通して固着している。このようにACM製シ
ャフト14そのものは利点に富んでいるが、欠点としてフ
ランジの形成が困難なこと、ボルト挿通孔を穿孔すると
繊維が切断されるのでその部分で強度が低下すること等
の理由で、折角のACM製シャフトも軸継手の問題の根本
的解決がなされていないのが現状である。In FIG. 7, sleeves 17 and 18 are fitted to the inside and outside of the joint portion of the shaft 14 made of ACM, and a bolt insertion hole is also made. As described above, the ACM shaft 14 itself is rich in advantages, but as disadvantages, it is difficult to form a flange, and when drilling a bolt insertion hole, fibers are cut, so strength is reduced at that portion, and the like. At present, there is no fundamental solution to the problem of the shaft coupling for the ACM shaft.
（発明により解決しようとする課題） 軽量で共振回転数域の低シフトが容易なACM製シャフ
トの利点を活かすことのできるACM製シャフト用の軸継
手を提供することを目的とする。(Problem to be Solved by the Invention) An object of the present invention is to provide a shaft coupling for an ACM shaft that is lightweight and can easily utilize the advantages of an ACM shaft that can easily shift the resonance speed range low.
（発明により課題の解決手段） 先端複合材料製の軸と軸との連結部に、先端複合材料
製の圧力容器を両軸に跨って嵌挿し、前記圧力容器を膨
張させることによって両軸を圧力容器を介し一体化し連
結するようにした。(Means for Solving the Problems According to the Invention) A pressure vessel made of a tip composite material is fitted over a connecting portion between the shafts made of a tip composite material across both axes, and the pressure vessel is expanded by expanding the pressure vessel to apply pressure to both shafts. They were integrated and connected via a container.
又圧力容器が連結すべき両軸の内径よりやゝ小径で、
液体ポンプからの油圧配管と着脱可能で、かつ中間部に
開閉弁を備えた送油管が中央部に突設されていて、該送
油管から圧油を供給し、所定圧になったら別途設けたリ
リーフ弁が作用し、開閉弁を閉じるようにした。Also, the diameter of the pressure vessel is slightly smaller than the inner diameter of both shafts to be connected,
An oil feed pipe that is detachable from the hydraulic pipe from the liquid pump and that has an open / close valve in the middle is protrudingly provided at the center, supplies pressure oil from the oil feed pipe, and is separately provided when a predetermined pressure is reached. The relief valve acted to close the on-off valve.
（実施例） 第１図を参照して説明する。１はACM製プロペラシャ
フト、２はACM製中間シャフトである。３は軸継手を構
成する中空のACM製圧力容器で、プロペラシャフト１と
中間シャフト２との間に突出した送油管４から圧力容器
３内に圧油を送入できるようになっている。(Example) This will be described with reference to FIG. 1 is an ACM propeller shaft, and 2 is an ACM intermediate shaft. Reference numeral 3 denotes a hollow pressure vessel made of ACM which constitutes a shaft coupling. The pressure oil can be fed into the pressure vessel 3 from an oil feed pipe 4 projecting between the propeller shaft 1 and the intermediate shaft 2.
圧力容器３はプロペラシャフト１と中間シャフト２の
継手部に嵌まるよう両シャフトの内径と略等しい外径で
円筒状をなし、両端が球面で閉じられている。The pressure vessel 3 has a cylindrical shape with an outer diameter substantially equal to the inner diameter of both shafts so as to fit into a joint portion between the propeller shaft 1 and the intermediate shaft 2, and both ends are closed by spherical surfaces.
送油管４は中間部に開閉弁５を有し、上端にはフラン
ジ６を備え、ポンプ（図示しない）に連結された配管７
と着脱可能である。The oil feed pipe 4 has an on-off valve 5 at an intermediate portion, a flange 6 at an upper end, and a pipe 7 connected to a pump (not shown).
It is removable.
フランジ６は圧力容器３内に圧油を送り、圧力容器３
を膨張させて軸継手を完成したならば、開閉弁５を閉め
たのち配管７を外し、盲フランジにする。The flange 6 sends pressure oil into the pressure vessel 3,
Is expanded to complete the shaft coupling, the on-off valve 5 is closed, the pipe 7 is removed, and a blind flange is formed.
圧力容器３は適当な弾性を有し、これによりプロペラ
シャフト１と中間シャフト２との軸アライメントの不整
をある程度までは吸収できるようになっている。The pressure vessel 3 has a suitable elasticity so that any irregularity in the axial alignment between the propeller shaft 1 and the intermediate shaft 2 can be absorbed to some extent.
上記ACM製軸継手はその材料・構成・寸法はシャフト
の伝達トルク、プロペラから受けるスラスト（推進力）
に合せて理論的に設計することができる。The material, configuration, and dimensions of the ACM shaft coupling are the shaft transmission torque and the thrust (propulsion) received from the propeller
Can be designed theoretically.
さて、送油管４と配管７とをフランジ６で結合し、圧
力容器３内に油圧Ｐをかけると、プロペラシャフトと中
間シャフト内に挿入されたACM製圧力容器３が円周方向
に膨張し、両シャフト1,2の内面に密着する。所定の圧
力に達したなら別途設けたリリーフ弁が働くので、その
後開閉弁５を締め、フランジ６を盲フランジとして軸継
手は完成である。Now, when the oil supply pipe 4 and the pipe 7 are connected with the flange 6 and a hydraulic pressure P is applied to the pressure vessel 3, the ACM pressure vessel 3 inserted into the propeller shaft and the intermediate shaft expands in the circumferential direction, Adhere to the inner surfaces of both shafts 1 and 2. When a predetermined pressure is reached, a separately provided relief valve is activated. Thereafter, the on-off valve 5 is tightened, and the shaft coupling is completed using the flange 6 as a blind flange.
エンジンからのトルクは軸継手の摩擦力により中間シ
ャフト２からプロペラシャフト１へ伝達される。次にプ
ロペラで発生した推進力（スラスト）は同様に軸継手の
摩擦力（軸方向）によりプロペラシャフト１から中間シ
ャフト２へ伝達され、次いでエンジン内蔵の推力軸受を
介して船体へ伝達され、船が進むことになる。Torque from the engine is transmitted from the intermediate shaft 2 to the propeller shaft 1 by the frictional force of the shaft coupling. Next, the thrust generated by the propeller (thrust) is similarly transmitted from the propeller shaft 1 to the intermediate shaft 2 by the frictional force (axial direction) of the shaft coupling, and then transmitted to the hull through the engine built-in thrust bearing. Will advance.
シャフト切離しのときは配管７を結合したのち開閉弁
５を解放し、油圧をおとせば簡単に切離しができる。When disconnecting the shaft, the pipe 7 is connected, then the on-off valve 5 is released, and if the hydraulic pressure is reduced, the shaft can be easily disconnected.
なお本軸継手は舶用シャフトに限らず、すべてのパイ
プやシャフト類の継手に適用することができ、特に頻繁
に結合・切離しをする場合の軸継手として好適である。This shaft coupling can be applied not only to a marine shaft but also to all types of pipes and shafts, and is particularly suitable as a shaft coupling for frequent coupling and disconnection.
（効果） １）ACM製シャフトの継手部材として、ACM製圧力容器を
採用したので、軽量で取扱いが簡単な継手を得ることが
できる。(Effects) 1) Since a pressure vessel made of ACM is adopted as a joint member of the shaft made of ACM, it is possible to obtain a lightweight and easily handled joint.
２）軸アライメント不整があっても、圧力容器に弾性が
あるので、これを吸収できる。2) Even if there is a misalignment of the axis, since the pressure vessel has elasticity, it can be absorbed.
３）ボルト挿通孔の穿孔等機械加工をしないので、構造
部材として問題となる応力集中がなくなる。3) Since mechanical processing such as drilling of bolt insertion holes is not performed, stress concentration which is a problem as a structural member is eliminated.
４）ACMは耐摩耗性・耐疲労性に優れ、また衝撃強さ・
ダンピング特性が大きいので、軸継手としての高性能・
高信頼性を備えた軸継手を得ることができる。4) ACM has excellent wear resistance and fatigue resistance,
High damping characteristics, high performance as a shaft coupling
A shaft coupling having high reliability can be obtained.
第１図は本発明に係るACM製軸継手を示す。 第２図は公知鍛鋼製プロペラ軸の継手を示す。 第３図はプロペラシャフトの回転速度と捩り応力図。 第４図は中間シャフトの回転数と捩り応力図。 第５図は複数層よりなるACM軸の斜視図。 第６図はACM軸の公知軸継手。 第７図は同じくACM軸の軸継手。 図において； １……ACM製プロペラシャフト ２……ACM製中間シャフト ３……ACM製圧力容器 ４……送油管、５……開閉弁 ６……フランジ、７……配管 FIG. 1 shows an ACM shaft coupling according to the present invention. FIG. 2 shows a joint of a known forged steel propeller shaft. FIG. 3 is a diagram showing the rotational speed and torsional stress of the propeller shaft. FIG. 4 is a diagram showing the rotational speed and torsional stress of the intermediate shaft. FIG. 5 is a perspective view of an ACM shaft composed of a plurality of layers. FIG. 6 shows a known shaft coupling of an ACM shaft. Fig. 7 shows the ACM shaft joint. In the figure: 1 ACM propeller shaft 2 ACM intermediate shaft 3 ACM pressure vessel 4 Oil supply pipe 5 On-off valve 6 Flange 7 Pipe
Claims (2)
端複合材料製の圧力容器を両軸に跨って嵌挿し、前記圧
力容器を膨張させることによって両軸を圧力容器を介し
一体化し連結することを特徴とする先端複合材料製軸の
軸継手構造。1. A pressure vessel made of an advanced composite material is fitted over a connecting portion between the shafts made of an advanced composite material over both axes, and the two pressure axes are expanded via the pressure vessel by expanding the pressure vessel. A shaft joint structure of a shaft made of advanced composite material characterized by being integrated and connected.
小径で、流体ポンプからの油圧配管と着脱可能で、かつ
中間部に開閉弁を備えた送油管が中央部に突設されてい
ることを特徴とする請求項（１）記載の先端複合材料製
軸の軸継手構造。2. An oil feed pipe having a diameter slightly smaller than the inner diameter of both shafts to be connected to the pressure vessel, detachable from a hydraulic pipe from a fluid pump, and provided with an on-off valve at an intermediate portion is protruded at a central portion. The shaft coupling structure for a shaft made of an advanced composite material according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1107700A JP2645498B2 (en) | 1989-04-28 | 1989-04-28 | Shaft joint structure of advanced composite material shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1107700A JP2645498B2 (en) | 1989-04-28 | 1989-04-28 | Shaft joint structure of advanced composite material shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02286918A JPH02286918A (en) | 1990-11-27 |
| JP2645498B2 true JP2645498B2 (en) | 1997-08-25 |
Family
ID=14465736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1107700A Expired - Lifetime JP2645498B2 (en) | 1989-04-28 | 1989-04-28 | Shaft joint structure of advanced composite material shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2645498B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518017A (en) * | 1991-07-16 | 1993-01-26 | Hitachi Zosen Corp | Joint member in structure |
| WO2015136002A1 (en) * | 2014-03-11 | 2015-09-17 | Corebon Ab | Friction connecting means |
-
1989
- 1989-04-28 JP JP1107700A patent/JP2645498B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02286918A (en) | 1990-11-27 |
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