JPH0544240Y2 - - Google Patents
Info
- Publication number
- JPH0544240Y2 JPH0544240Y2 JP1987082383U JP8238387U JPH0544240Y2 JP H0544240 Y2 JPH0544240 Y2 JP H0544240Y2 JP 1987082383 U JP1987082383 U JP 1987082383U JP 8238387 U JP8238387 U JP 8238387U JP H0544240 Y2 JPH0544240 Y2 JP H0544240Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- flange
- inner shaft
- tapered
- main engine
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は内軸及び外軸で駆動される舶用二重反
転プロペラーの軸系構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shaft system structure of a counter-rotating marine propeller driven by an inner shaft and an outer shaft.
舶用二重反転プロペラーの軸系は、従来、第２
図縦断面図に示すように、後部プロペラー０８が
デイーゼル機関０１の出力軸０２に直結された内
軸０９に嵌着されてデイーゼル機関０１の出力軸
０２と同一回転数で同一方向に駆動され、前部プ
ロペラー０７が嵌着された中空外軸０６は反転装
置０５、弾性継手０４及びフランジ付摩擦スリー
ブカツプリング０１２を介してデイーゼル機関０
１の出力軸０２に連結されて、後部プロペラー０
８とは逆方向に駆動されるようになつている。
Conventionally, the shaft system of a marine contra-rotating propeller is
As shown in the longitudinal sectional view of the figure, the rear propeller 08 is fitted onto an inner shaft 09 directly connected to the output shaft 02 of the diesel engine 01, and is driven in the same direction at the same rotation speed as the output shaft 02 of the diesel engine 01. The hollow outer shaft 06 to which the front propeller 07 is fitted is connected to the diesel engine 0 via the reversing device 05, the elastic joint 04 and the flanged friction sleeve coupling 012.
The rear propeller 0 is connected to the output shaft 02 of 1.
8 is driven in the opposite direction.
しかしながら、このようなプロペラー軸系構造
では、下記のような問題がある。
However, such a propeller shaft structure has the following problems.
(1) 現有技術において弾性継手は環状一体型であ
るため、故障率が比較的高く、かつ定期点検を
要する弾性継手は単体で構成されている関係
上、開放できない軸系となつている。(1) In the existing technology, elastic joints are annular integral type, which has a relatively high failure rate and requires periodic inspection.Since the elastic joints are made up of a single unit, the shaft system cannot be opened.
(2) 反転ギヤ中心を貫通する内軸と主機関出力軸
を摩擦スリーブ継手にて結合するために、内軸
を主機関出力軸と同径にしなければならないの
で、反転ギヤ０５、摩擦スリーブ継手０１２、
弾性継手０４が必要以上に大型化し、軸系のコ
ストアツプを招き、かつ配置的にも不具合であ
る。(2) In order to connect the inner shaft that passes through the center of the reversing gear and the main engine output shaft with a friction sleeve joint, the inner shaft must have the same diameter as the main engine output shaft, so the reversing gear 05 and the friction sleeve joint 012,
The elastic joint 04 becomes larger than necessary, which increases the cost of the shaft system, and is also inconvenient in terms of arrangement.
本考案はこのような事情に鑑みて提案されたも
ので、低コストかつメンテナンス容易な舶用二重
反転プロペラーの軸系構造を提供することを目的
とする。 The present invention was proposed in view of the above circumstances, and an object of the present invention is to provide a shaft system structure for a counter-rotating marine propeller that is low in cost and easy to maintain.
そのために本考案は、内軸及びこれに同軸的に
外挿された中空外軸で駆動される舶用二重反転プ
ロペラーの軸系装置において、反転ギヤの入力側
であつて、上記内軸の主機関寄りの前端に嵌着さ
れ、円筒部のテーパー孔が内軸の先端テーパー部
に嵌着されて同内軸にトルクを伝えるとともに同
円筒部の外周面に挿着された弾性体及びその出力
フランジを介して上記反転ギヤにトルクを分岐す
るテーパー軸孔型組立フランジと、同組立フラン
ジの前端フランジ部と主機関出力軸の後端フラン
ジ部との間に挿入され同組立フランジの長さより
も長い長さを持つ両端フランジ型中間短軸とを具
えたことを特徴とする。
To this end, the present invention provides a shaft system for a marine contra-rotating propeller driven by an inner shaft and a hollow outer shaft coaxially inserted therein. An elastic body is fitted to the front end of the cylinder near the engine, and the tapered hole of the cylindrical part is fitted to the tapered tip of the inner shaft to transmit torque to the inner shaft, and the elastic body is inserted into the outer peripheral surface of the cylinder and its output. A tapered shaft hole assembly flange that branches torque to the reversing gear via the flange, and a tapered shaft hole type assembly flange that is inserted between the front end flange part of the assembly flange and the rear end flange part of the main engine output shaft, and is longer than the assembly flange length. It is characterized by having a long intermediate short shaft with flanges at both ends.
このような構成により、低コストかつメンテナ
ンス容易な舶用二重反転プロペラーの軸系構造を
得ることができる。
With such a configuration, it is possible to obtain a shaft system structure for a contra-rotating marine propeller that is low in cost and easy to maintain.
本考案の一実施例を図面について説明すると、
第１図はその縦断面図、第２図は第１図の弾性継
手部分を示す拡大図である。
An embodiment of the present invention will be explained with reference to the drawings.
FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is an enlarged view showing the elastic joint portion of FIG. 1.
上図において、１は主機関、２は主機関出力
軸、３は短軸、５は反転ギヤ、６は外軸、７は前
部プロペラー、８は後部プロペラー、９はプロペ
ラー内軸、１０は内軸継手、１１は中間内軸、４
は弾性継手であり入力端面を持つテーパー軸孔型
組立フランジ４−１、同組立フランジ外周に装着
され反転ギヤ５へトルクを伝達する弾性体４−２
及び出力フランジ４−３より構成されている。 In the above diagram, 1 is the main engine, 2 is the main engine output shaft, 3 is the short shaft, 5 is the reversing gear, 6 is the outer shaft, 7 is the front propeller, 8 is the rear propeller, 9 is the propeller inner shaft, 10 is the Inner shaft joint, 11 is intermediate inner shaft, 4
is an elastic joint, which includes a tapered shaft hole type assembly flange 4-1 having an input end face, and an elastic body 4-2 attached to the outer periphery of the assembly flange and transmitting torque to the reversing gear 5.
and an output flange 4-3.
このような構造において、短軸３は弾性継手４
より長く作られており弾性継手４の組立フランジ
４−１には、反転ギヤ５を貫通し必要最小径の中
間内軸１１が嵌合され後部プロペラー８へトルク
を伝達するようになつている。 In such a structure, the short axis 3 is connected to the elastic joint 4
The assembly flange 4-1 of the elastic joint 4, which is made longer, passes through the reversing gear 5 and is fitted with an intermediate inner shaft 11 having the required minimum diameter so as to transmit torque to the rear propeller 8.
このような本願考案構造によれば、第２図に示
すように、組立フランジ４−１の円筒部の外径
D0は、テーパー部の嵌合の関係で、
D0＝２（0＋3）
であり、比較的小径となる。 According to the structure of the present invention, as shown in FIG. 2, the outer diameter of the cylindrical portion of the assembly flange 4-1
D 0 is D 0 =2( 0 + 3 ) due to the fit of the tapered portion, and has a relatively small diameter.
ここで本願考案における弾性継手の開放及び組
立作業は下記の手順で安全迅速かつ省人省力的に
行うことができる。すなわち、
(1) 短軸３を接続ボルトナツトを外して、出力軸
２と組立フランジ４−１から取り外す。 Here, the opening and assembly work of the elastic joint in the present invention can be performed safely, quickly, and labor-savingly by the following procedure. That is, (1) Remove the short shaft 3 from the output shaft 2 and assembly flange 4-1 by removing the connecting bolts and nuts.
(2) 組立フランジ４−１を油圧ジヤツキ等で中間
内軸１１から外す。(2) Remove the assembly flange 4-1 from the intermediate inner shaft 11 using a hydraulic jack or the like.
(3) 弾性継手４を接続ボルトを外したのち、これ
を反転装置の入口軸から取り外す。(3) After removing the connecting bolt of the elastic joint 4, remove it from the inlet shaft of the reversing device.
このような構造によれば、下記の効果が奏せら
れる。
According to such a structure, the following effects can be achieved.
内軸及びこれに同軸的に外挿された中空外軸で
駆動される舶用二重反転プロペラーの軸系装置に
おいて、反転ギヤの入力側であつて、上記内軸の
主機関寄りの前端に嵌着され、円筒部のテーパー
孔が内軸の先端テーパー部に嵌着されて同内軸に
トルクを伝えるとともに同円筒部の外周面に挿着
された弾性体及びその出力フランジを介して上記
反転ギヤにトルクを分岐するテーパー軸孔型組立
フランジと、同組立フランジの前端フランジ部と
主機関出力軸の後端フランジ部との間に挿入され
同組立フランジの長さよりも長い長さを持つ両端
フランジ型中間短軸とを具えたことにより、反転
ギヤを貫通する内軸を主機関出力軸と同径にする
必要がなく、最小径に止めるとができるから、反
転ギヤ、弾性継手の小型化を図り、軸系コスト及
び配置面で有利であり、弾性継手の点検及び開放
を迅速かつ容易に行えるので、軸系の信頼性が大
きく向上する。 In a shaft system device for a marine counter-rotating propeller driven by an inner shaft and a hollow outer shaft coaxially inserted outside the inner shaft, the shaft is fitted to the front end of the inner shaft near the main engine on the input side of the reversing gear. The tapered hole of the cylindrical part is fitted into the tapered end of the inner shaft to transmit torque to the inner shaft, and the above-mentioned reversal is carried out through the elastic body inserted into the outer peripheral surface of the cylindrical part and its output flange. A tapered shaft hole assembly flange that branches torque to the gear, and both ends that are inserted between the front end flange of the assembly flange and the rear end flange of the main engine output shaft and have a length longer than the assembly flange. By having a flange-type intermediate short shaft, the inner shaft that passes through the reversing gear does not need to have the same diameter as the main engine output shaft, and can be kept at the minimum diameter, making the reversing gear and elastic joint more compact. This is advantageous in terms of shaft system cost and arrangement, and since the elastic joint can be inspected and opened quickly and easily, the reliability of the shaft system is greatly improved.
ここで弾性体４−２は、図２に示すように、入
力端であるテーパー軸孔型組立フランジ４−１の
円筒部外周にそれぞれ内端が固着され等間隔で放
射方向に延びる等長の多数の長方形入力板ａと、
互いに隣り合う入力板ａ，ａの間にそれぞれ挿入
され放射方向の後端が出力フランジ４−３の前面
に固着された多数の長方形出力板ｂとをゴム等を
介して円筒状にブロツク化してなるものである。 Here, as shown in FIG. 2, the elastic bodies 4-2 have inner ends fixed to the outer periphery of the cylindrical part of the tapered shaft hole type assembly flange 4-1, which is the input end, and have equal lengths extending in the radial direction at equal intervals. a large number of rectangular input boards a;
A large number of rectangular output plates b are inserted between adjacent input plates a and a, and the rear end of the radial direction is fixed to the front surface of the output flange 4-3, and the blocks are formed into a cylindrical shape using rubber or the like. It is what it is.
要するに本考案によれば、内軸及びこれに同軸
的に外挿された中空外軸で駆動される舶用二重反
転プロペラーの軸系装置において、反転ギヤの入
力側に挿入され中心軸が組立フランジ方式となつ
て上記内軸の主機関寄りの一端に嵌着され外周に
装着された弾性体を介して上記反転ギヤにトルク
を分岐する弾性継手を具えたことにより、低コス
トかつメンテナンス容易な舶用二重反転プロペラ
ーの軸系構造を得るから、本考案は産業上極めて
有益なものである。 In short, according to the present invention, in a shaft system device for a marine counter-rotating propeller driven by an inner shaft and a hollow outer shaft coaxially inserted therein, the central shaft is inserted into the input side of the reversing gear and the center shaft is connected to the assembly flange. This system is equipped with an elastic joint that is fitted to one end of the inner shaft near the main engine and branches torque to the reversing gear via an elastic body attached to the outer periphery. The present invention is industrially extremely useful because it provides a shaft system structure for a counter-rotating propeller.
第１図は本考案の一実施例を示す軸系縦断面図
第２図は第１図の弾性継手部分を示す模式的説明
図及びその部分拡大図、。第３図は従来の舶用二
重反転プロペラー軸を示す軸系縦断面図である。
１……主機関、２……主機関出力軸、３……短
軸、４……弾性継手、４−１……組立フランジ、
４−２……弾性体、４−３……出力フランジ、５
……反転ギヤ、７……前部プロペラー、８……後
部プロペラー、１１……中間内軸、ａ……入力
板、ｂ……出力板、Ｘ……入力端、Ｙ……出力
端。
FIG. 1 is a vertical sectional view of a shaft system showing an embodiment of the present invention; FIG. 2 is a schematic explanatory view showing the elastic joint portion of FIG. 1 and a partially enlarged view thereof; FIG. 3 is a vertical cross-sectional view of a conventional marine contra-rotating propeller shaft. 1... Main engine, 2... Main engine output shaft, 3... Short shaft, 4... Elastic joint, 4-1... Assembly flange,
4-2...Elastic body, 4-3...Output flange, 5
... Reversing gear, 7... Front propeller, 8... Rear propeller, 11... Intermediate inner shaft, a... Input plate, b... Output plate, X... Input end, Y... Output end.
Claims (1)
駆動される舶用二重反転プロペラーの軸系装置に
おいて、反転ギヤの入力側であつて、上記内軸の
主機関寄りの前端に嵌着され、円筒部のテーパー
孔が内軸の先端テーパー部に嵌着されて同内軸に
トルクを伝えるとともに同円筒部の外周面に挿着
された弾性体及びその出力フランジを介して上記
反転ギヤにトルクを分岐するテーパー軸孔型組立
フランジと、同組立フランジの前端フランジ部と
主機関出力軸の後端フランジ部との間に挿入され
同組立フランジの長さよりも長い長さを持つ両端
フランジ型中間短軸とを具えたことを特徴とする
舶用二重反転プロペラーの軸系構造。 In a shaft system device for a marine counter-rotating propeller driven by an inner shaft and a hollow outer shaft coaxially inserted outside the inner shaft, the shaft is fitted to the front end of the inner shaft near the main engine on the input side of the reversing gear. The tapered hole of the cylindrical part is fitted into the tapered end of the inner shaft to transmit torque to the inner shaft, and the above-mentioned reversal is carried out through the elastic body inserted into the outer peripheral surface of the cylindrical part and its output flange. A tapered shaft hole assembly flange that branches torque to the gear, and both ends that are inserted between the front end flange of the assembly flange and the rear end flange of the main engine output shaft and have a length longer than the assembly flange. A shaft system structure of a contra-rotating marine propeller characterized by having a flange-type intermediate short shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987082383U JPH0544240Y2 (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987082383U JPH0544240Y2 (en) | 1987-05-29 | 1987-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63190000U JPS63190000U (en) | 1988-12-07 |
| JPH0544240Y2 true JPH0544240Y2 (en) | 1993-11-09 |
Family
ID=30934987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987082383U Expired - Lifetime JPH0544240Y2 (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0544240Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0343119Y2 (en) * | 1984-11-19 | 1991-09-10 |
-
1987
- 1987-05-29 JP JP1987082383U patent/JPH0544240Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63190000U (en) | 1988-12-07 |
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