JPS609959B2 - Marine propeller mounting structure - Google Patents
Marine propeller mounting structureInfo
- Publication number
- JPS609959B2 JPS609959B2 JP11059480A JP11059480A JPS609959B2 JP S609959 B2 JPS609959 B2 JP S609959B2 JP 11059480 A JP11059480 A JP 11059480A JP 11059480 A JP11059480 A JP 11059480A JP S609959 B2 JPS609959 B2 JP S609959B2
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- boss
- propeller shaft
- stern tube
- intermediate ring
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 235000015429 Mirabilis expansa Nutrition 0.000 description 1
- 244000294411 Mirabilis expansa Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000013536 miso Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
- Sliding-Contact Bearings (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【発明の詳細な説明】 この発明は舶用プロペラの取付構造に関する。[Detailed description of the invention] The present invention relates to a mounting structure for a marine propeller.
この明細書において、前後とは船の前後をいうものとす
る。舶用プロペラの取付構造として、第１図に示すうに
、船尾材と一体に形成された船尾管１にプッシュ２を介
して支持されたプロペラ軸３のテーゞ部３ａにプロペラ
４のボス４ａが圧入鉄合さ、プロペラボス４ａの後方に
突出したプロペラ３後端部のおねじ部３ｂに、プロペラ
ボス４ａ端面に圧接するようにナット５がねじ鉄めら、
プロペラボス４ａの後端部に、プロペラ軸３おねじ部３
ｂおよびナット５を覆うとともにプロペラボス４ａの後
端部を密閉するボンネット６ミ水密状に取付けられ、プ
ロペラボス４ａの前端に、船尾管１に設けられた円環状
のシール７の面に沼接する円筒状のラィナ８が設けられ
たもが知られている。In this specification, "front and rear" refers to the front and rear of the ship. As a mounting structure for a marine propeller, as shown in Fig. 1, a boss 4a of a propeller 4 is press-fitted into a toothed portion 3a of a propeller shaft 3 supported via a pusher 2 on a stern tube 1 formed integrally with a stern member. The nut 5 is threaded so as to be in pressure contact with the end surface of the propeller boss 4a on the male threaded portion 3b of the rear end of the propeller 3 protruding rearward from the propeller boss 4a.
A male threaded portion 3 of the propeller shaft 3 is attached to the rear end of the propeller boss 4a.
A bonnet 6 is attached in a watertight manner to cover the propeller boss 4a and the nut 5 and seal the rear end of the propeller boss 4a, and is in contact with the surface of an annular seal 7 provided on the stern tube 1 at the front end of the propeller boss 4a. One in which a cylindrical liner 8 is provided is known.
このプロペラ軸３は中間軸図示略）を介して主機に連結
されており、惨、点検等を行なう場合には、例えば次の
ようにしてプロペラ軸３を取外す。すなわち、まず船を
ドックに入れてプロペラ敬付部を水面上に出し、ぎンネ
ツト６をプロペラボス４ａから取外し、ナット５を緩め
てプロペラ軸３から取外し、船尾管１およびプロペラボ
ス４ａに形成された油路（図、略）を通してプロペラボ
ス４ａ内面のテーパ部４ｂに形成された油みぞ（図示略
）に圧油を供給することにより、プロペラ軸３とプロペ
ラボス４ａとの競合を緩めてプロペラ４をプロペラ軸３
から抜き去り、適宜中間軸を取外してプロペラ軸３を船
内に引抜く。このように従来の船では、プロペラ軸３を
取外す際に、ボンネット６をプロペラボス４ａから取外
すとともに、プロペラ４を船尾管１から完全に取外す必
要があり、プロペラ軸３を抜き去ったときに船尾管１の
後端部が開放されるため、船をドックに入れて作業を行
なわなければならない。したがって、作業に多くの費用
と時間を要するという問題がある。この発明は、上記の
実情に鑑みてなされたものであって、船を水面に浮かべ
たまま、簡単にプロペラ軸を取外すことができる合理的
な舶用プロペラの取付構造を提供することを目的とする
。This propeller shaft 3 is connected to the main engine via an intermediate shaft (not shown), and in case of emergency or inspection, the propeller shaft 3 is removed, for example, as follows. That is, first, put the ship in the dock, bring the propeller mounting part above the water surface, remove the gunnet 6 from the propeller boss 4a, loosen the nut 5 and remove it from the propeller shaft 3, and remove the screw thread formed on the stern tube 1 and the propeller boss 4a. By supplying pressurized oil to an oil groove (not shown) formed in the tapered part 4b on the inner surface of the propeller boss 4a through an oil passage (not shown), the competition between the propeller shaft 3 and the propeller boss 4a is relaxed, and the propeller 4 to propeller shaft 3
Remove the propeller shaft 3 from the ship, remove the intermediate shaft as appropriate, and pull the propeller shaft 3 into the ship. In this way, in conventional ships, when removing the propeller shaft 3, it is necessary to remove the bonnet 6 from the propeller boss 4a and also to completely remove the propeller 4 from the stern tube 1. Since the rear end of the pipe 1 is opened, the ship must be docked to carry out the work. Therefore, there is a problem that the work requires a lot of cost and time. This invention was made in view of the above circumstances, and aims to provide a rational marine propeller mounting structure that allows the propeller shaft to be easily removed while the ship is floating on the water surface. .
以下この発明を第２図〜第４図に示す実施例により詳細
に説明する。第２図において、船の船尾材に取付けられ
た船尾管１０の内周面にブッシュ１１が設けられ、この
プッシュ１１にプロペラ軸１２が支持されている。This invention will be explained in detail below with reference to embodiments shown in FIGS. 2 to 4. In FIG. 2, a bush 11 is provided on the inner peripheral surface of a stern tube 10 attached to a stern member of a ship, and a propeller shaft 12 is supported by this push 11.
プロペラ軸１２の後部にはテーパ部１３とおねじ部１４
が形成され、このテーパ部１３にプロペラ１５のボス１
６が圧入隊合されている。プロペラ軸１２のおねじ部１
４はプロペラボス１６の後方に突出し、このおねじ部１
４には、内外両面にねじが形成された中間リング１７が
ねじ緩められている。そしてプロペラ軸１２が中間リン
グ１７に対して軸万向に移動させられたときに磁力によ
って中間リング１７が回転しうるように、プロペラ軸１
２のおねじ部１４と中間リング１７内面のねじは大きな
リード角を有する。中間リング１７の外面には、ナット
１８がねじ鉄められている。このナット１８は、プロペ
ラボス１６に圧接しており、少なくとも２個の着脱自在
な回り止めピン１９により、プロペラボス１６に対して
回転しないようになされている。プロペラボス１６の後
端部には、プロペラ軸１２のおねじ部１４、中間リング
１７およびナット１８を覆うとともにプロペラボス１６
の後端部を密閉するためのボンネット２０が水密状に取
付けられている。ボンネット２０の内面には、内向きの
鍔部２１が形成され、この鍔部２１により、ナット１８
が鞠方向にほとんど移動しないようになされている船尾
管１０の後端部には、環状のシール２２が取付けられて
おり、プロペラボス１６の前端部には、このシール２２
の内面に摺接する円筒状のラィナ２３が取付けられてい
る。そして、船尾管１０の内面とラィナ２３の外面とに
、通常は互いに離れているがプロペラボス１６を回転さ
せながら前方に移動させたときに互いに係合するねじ部
（係合部）２４，２５がそれぞれ設けられている。船尾
管１０の後端外周部とプロペラボス１６の前端外周部と
の間に、シール２２およびラィナ２３を覆う筒状のロー
プガード２６が設けられている。ローブガード２６の前
端部は船尾管１川こ固定され、同後端部はプロペラボス
１６の前端部を取囲んでいるがプロペラボス１６からは
若干離れている。プロペラボス１６内面のテーパ部２７
には螺旋状の油みぞ２８が形成され、プロペラボス１６
およびラィナ２３には、油みそ１２８に蓮適する油路２
９，３０がそれぞれ形成されている。また、船尾管１０
１こは、船内の油圧装置に接続され、かつ船尾管１０が
ラィナ２３とねじ部２４，２５によって完全に孫合した
ときにラィナ２３の油路３０と蓮適する油路３１が形成
されている。船尾管１０の内面およびラィナ２３の前端
には、第４図に示すように、油路３０，３１の内側と外
側に、互いに対応する段部３２，３３，３４，３５がそ
れぞれ形成され、ラィナ２３の各段部３４，３５には○
リング３６，３７が設けられている。また、プロペラボ
ス１６の内面にも、ラィナ２３との間に○リング３８が
設けられている。プロペラ軸１２の取外しは、船を水面
に浮かべた状態で、次のようにして行なう。まず、船内
の中間軸を取外して、プロペラ軸１２を船内に引込める
ようにし、プロペラ軸１２を引張って船内側すなわち前
方に移動させながらゆっくり回転させ、ラィナ２３のね
じ部２５と船尾管１０のねじ部２４とをかみ合わせる。At the rear of the propeller shaft 12 there is a tapered part 13 and a male threaded part 14.
is formed, and the boss 1 of the propeller 15 is formed in this tapered portion 13.
6 are combined into a press-in formation. Male thread part 1 of propeller shaft 12
4 protrudes to the rear of the propeller boss 16, and this male threaded portion 1
4, an intermediate ring 17 having threads formed on both the inner and outer surfaces is unscrewed. Then, when the propeller shaft 12 is moved in all directions relative to the intermediate ring 17, the intermediate ring 17 can be rotated by the magnetic force.
The two male threaded portions 14 and the threads on the inner surface of the intermediate ring 17 have a large lead angle. A nut 18 is screwed onto the outer surface of the intermediate ring 17. This nut 18 is in pressure contact with the propeller boss 16, and is prevented from rotating relative to the propeller boss 16 by at least two removable locking pins 19. The rear end of the propeller boss 16 covers the male threaded portion 14 of the propeller shaft 12, the intermediate ring 17, and the nut 18, and also covers the propeller boss 16.
A bonnet 20 for sealing the rear end of the vehicle is attached in a watertight manner. An inward flange 21 is formed on the inner surface of the bonnet 20, and this flange 21 allows the nut 18 to be
An annular seal 22 is attached to the rear end of the stern tube 10 where the propeller boss 16 hardly moves in the marring direction, and this seal 22 is attached to the front end of the propeller boss 16.
A cylindrical liner 23 is attached to slide on the inner surface of the cylinder. Threaded portions (engaging portions) 24 and 25 are provided on the inner surface of the stern tube 10 and the outer surface of the liner 23, which are normally separated from each other but engage with each other when the propeller boss 16 is rotated and moved forward. are provided for each. A cylindrical rope guard 26 that covers the seal 22 and the liner 23 is provided between the rear end outer circumference of the stern tube 10 and the front end outer circumference of the propeller boss 16. The front end of the lobe guard 26 is fixed to one end of the stern tube, and the rear end of the lobe guard 26 surrounds the front end of the propeller boss 16 but is slightly separated from the propeller boss 16. Tapered portion 27 on the inner surface of propeller boss 16
A spiral oil groove 28 is formed in the propeller boss 16.
And the liner 23 has an oil passage 2 suitable for the oil miso 128.
9 and 30 are formed, respectively. Also, the stern tube 10
1 is connected to the hydraulic system inside the ship, and forms an oil passage 31 that fits in with the oil passage 30 of the liner 23 when the stern pipe 10 is completely mated with the liner 23 through threaded parts 24 and 25. . On the inner surface of the stern tube 10 and the front end of the liner 23, as shown in FIG. 23, each step 34, 35 has a circle.
Rings 36, 37 are provided. Further, an O ring 38 is also provided on the inner surface of the propeller boss 16 between it and the liner 23. The propeller shaft 12 is removed as follows with the boat floating on the water surface. First, remove the intermediate shaft inside the ship so that the propeller shaft 12 can be retracted into the ship, pull the propeller shaft 12 to move it toward the inside of the ship, that is, forward, and rotate it slowly. The screw portion 24 is engaged with the screw portion 24.
ねじ部２４，２５がかみ合ったのちは、プロペラ軸１２
を回転させるだけで、第３図に示すようにラィナ２３の
前端が船尾管１０と当援するところまで、プロペラ１２
は前方に移動する。このように船尾管１０とラィナ２３
とが完全に孫合すると、第４図に示すように、ライナ２
３の○リング３６，３７が船尾管１０の段部３２，３３
に当綾して、ラィナ２３の油路３０と船尾管１０の油路
３１とが連通し、船尾管１０の油路３１，船尾管１０と
ラィナ２３との間の○リング３６，３７に挟まれた空間
３９、ラィナ２３の油路３０およびプロペラボス１６の
油路２９によって、船内の油圧装置からプロペラボス１
６の油みぞ２８に至る油圧回路が形成される。次にこの
ような状態で、油みぞ２８に圧油を供給する。これによ
り、プロペラ軸１２とプロペラボス１６との接合が緩む
ので、プロペラ軸１２を回転させずに船内側に引張る。
プロペラ鞠１２が前方に移動すると、その鞠力により中
間リング１７が若干回転して、プロペラ軸１２のおねじ
部１４が中間リング１７から外れるので、そのままプロ
ペラ軸１２を船内に引抜けばよい。このとき、中間リン
グ１７は、ナット１８に対しても、ナット１８が緩む方
向に回転し、おねじ部１４が外れたのちもナット１８に
かみ合っている。プロペラ鞠１２を抜き去っても、プロ
ペラボス１６はラィナ２３を介して船尾管１０１こ支持
されており、船尾管１０とプロペラボス１６との間はシ
ール２２とラィナ２３とで密閉され、プロペラボス１６
の後端部はボンネット２０１こよって密閉されているの
で船内に浸水するおそれがない。プロペラ軸１２の取付
けは、やはり船を水面に浮かべた状態で、上記と逆の順
序で行なう。すなわち、プロペラ軸１２を回転させずに
船内側から船尾管１０およびプロペラボス１６に挿入し
、プロペラ軸１２を中間リング１７にかみ合せて、中間
リング１７をナット１８を締める方向に回転させ、前記
油圧回路によって油みぞ１８に圧油を供給しながら、プ
ロペラ軸１２のテーパ部１３をプロペラボス１６に押込
んで圧入隊合させ、プロペラ軸１２を前記と逆方向に回
転させてラィナ２３のねじ部２５を船尾管１０のねじ部
から外し、さらにプロペラ軸１２を所定の位置まで後方
に移動させる。最初のプロペラ１５の組立は、予めプロ
ペラ１５を船尾管１川こ取付けるとともに、プロペラボ
ス１６にボンネット２０、ナット１８および中間リング
１７を取付けておいて、上記取付け作業と同様にして行
なってもよいし、従来と同様に、プロペラ軸１２を船尾
管１０‘こ支持したのち、そのブーパ部１３にプロペラ
ボス１６を圧入隊合し、そのおねじ部１４に中間リング
１７およびナット１８をねじ鉄めたのち、プロペラボス
１６にボンネット２０を取付けるようにして行なっても
よし、。After the threaded parts 24 and 25 are engaged, the propeller shaft 12
Simply rotate the propeller 12 until the front end of the liner 23 touches the stern tube 10 as shown in
moves forward. In this way, the stern tube 10 and liner 23
When the two lines are completely aligned, the liner 2 is formed as shown in Figure 4.
3 ○ rings 36 and 37 are the steps 32 and 33 of the stern tube 10
As a result, the oil passage 30 of the liner 23 and the oil passage 31 of the stern tube 10 communicate with each other, and the oil passage 31 of the stern tube 10 is sandwiched between the ○ rings 36 and 37 between the stern tube 10 and the liner 23. The oil passage 30 of the liner 23 and the oil passage 29 of the propeller boss 16 connect the hydraulic system inside the ship to the propeller boss 1.
A hydraulic circuit leading to the oil groove 28 of No. 6 is formed. Next, in this state, pressure oil is supplied to the oil groove 28. This loosens the connection between the propeller shaft 12 and the propeller boss 16, so the propeller shaft 12 is pulled inward without rotating.
When the propeller shaft 12 moves forward, the intermediate ring 17 rotates slightly due to the driving force, and the male threaded portion 14 of the propeller shaft 12 comes off from the intermediate ring 17, so the propeller shaft 12 can be pulled out into the ship. At this time, the intermediate ring 17 also rotates with respect to the nut 18 in the direction in which the nut 18 is loosened, and remains engaged with the nut 18 even after the male threaded portion 14 has come off. Even if the propeller ball 12 is removed, the propeller boss 16 is supported by the stern tube 101 via the liner 23, and the space between the stern tube 10 and the propeller boss 16 is sealed by the seal 22 and the liner 23, and the propeller boss 16 is 16
Since the rear end of the boat is sealed by the bonnet 201, there is no risk of water entering the boat. Attachment of the propeller shaft 12 is carried out in the reverse order as described above, again with the boat floating on the water surface. That is, the propeller shaft 12 is inserted into the stern tube 10 and the propeller boss 16 from inside the ship without rotating, the propeller shaft 12 is engaged with the intermediate ring 17, the intermediate ring 17 is rotated in a direction to tighten the nut 18, and the While supplying pressurized oil to the oil groove 18 by the hydraulic circuit, the tapered part 13 of the propeller shaft 12 is pushed into the propeller boss 16 so that the propeller shaft 12 is pressed into the propeller boss 16, and the propeller shaft 12 is rotated in the opposite direction to the threaded part of the liner 23. 25 from the threaded portion of the stern tube 10, and further move the propeller shaft 12 rearward to a predetermined position. The first assembly of the propeller 15 may be carried out in the same manner as the above-mentioned installation work by attaching the propeller 15 to the stern tube in advance and attaching the bonnet 20, nut 18 and intermediate ring 17 to the propeller boss 16. As in the past, after the propeller shaft 12 is supported by the stern tube 10', the propeller boss 16 is press-fitted into the stern tube 10', and the intermediate ring 17 and nut 18 are screwed onto the male threaded part 14. Afterwards, you can attach the bonnet 20 to the propeller boss 16.
船尾管１０は、船の船尾材と一体に構成されてもよいし
、船尾材と別個に製作されて、船尾材に付けられてもよ
い。The stern tube 10 may be constructed integrally with the stern member of the ship, or may be manufactured separately from the stern member and attached to the stern member.
以上のように、この発明による舶用プロペラの付機造は
、船尾管１０に支持されたプロペラ鞠１２の後部にテー
パ部１３が形成され、このテーパ部１３にプロペラ１５
のボス１６が庄入隊合され、プロペラボス１６の後方に
突出したプロペラ軸１２の後端部におねじ部１４が形成
され、このおねじ部１４に、内外両面にねじが形成され
た中間リング１７がねじ隊められ、この中間リング１７
の外面に、ナット１８が、プロペラボス１６の後端面に
接するとともにプロペラボス１６に対して回転しないよ
うにねじ隊められ、プロペラボス１６の後端部に、プロ
ペラ軸１２のおねじ部１４、中間リング１７およびナッ
ト１８を覆ってナット１８が藤方向にほとんど移動しな
いようにするとともにプロペラボス１６の後端部を密閉
するためのボンネット２０が水密状に取付けられ、プロ
ペラボス１６の前端部に、船尾管１０‘こ設けられたシ
ール２２に摺接する円筒状のラィナ２３が設けられ、船
尾管１０とラィナ２３とに、プロペラボス１６を前方に
移動させたときに互いに係合する係合部２４，２５がそ
れぞれ設けられ、プロペラ軸１２が中間リング１７に対
して鞠方向に移動させられたときに藤力によって中間リ
ング１７が回転しうるように、プロペラ軸１２のおねじ
部１４と中間リング１７内面のねじのりード角が大きく
なっているので、プロペラポス１６およびボンネット２
０等を船尾管１０およびプロペラボス１６からそれぞれ
取外すことなく、プロペラ軸１２だけを船内側に抜き去
ることができる。As described above, in the marine propeller attachment structure according to the present invention, the tapered part 13 is formed at the rear of the propeller ball 12 supported by the stern tube 10, and the propeller 15 is formed in this tapered part 13.
A threaded portion 14 is formed at the rear end of the propeller shaft 12 that protrudes to the rear of the propeller boss 16, and an intermediate ring having threads formed on both the inner and outer surfaces of the male threaded portion 14 is formed. 17 is threaded and this intermediate ring 17
A nut 18 is threaded onto the outer surface of the propeller shaft 12 so as to contact the rear end surface of the propeller boss 16 and not rotate with respect to the propeller boss 16. A bonnet 20 is attached to the front end of the propeller boss 16 in a watertight manner to cover the intermediate ring 17 and the nut 18 so that the nut 18 hardly moves in the vertical direction, and to seal the rear end of the propeller boss 16. A cylindrical liner 23 is provided in sliding contact with a seal 22 provided on the stern tube 10', and the stern tube 10 and the liner 23 have an engaging portion that engages with each other when the propeller boss 16 is moved forward. 24 and 25 are provided respectively, and the male threaded portion 14 of the propeller shaft 12 and the intermediate ring are provided so that the intermediate ring 17 can be rotated by the force when the propeller shaft 12 is moved in the direction of the intermediate ring 17. Since the thread angle on the inner surface of the ring 17 is large, the propeller post 16 and the bonnet 2
Only the propeller shaft 12 can be removed to the inside of the ship without removing the 0 etc. from the stern tube 10 and the propeller boss 16, respectively.
したがって、この発明によれば、プロペラ軸１２の取外
しを、船を海面に浮かべたまま、簡単に行なうことがで
きる。Therefore, according to the present invention, the propeller shaft 12 can be easily removed while the ship is floating on the sea surface.
第１図は従来例を示す縦断面図、第２図〜第４図はこの
発明の実施例を示し、第２図は取付状態を示す縦断面図
、第３図は取外し途中の状態を示す縦断面図、第４図は
第３図Ａ部の拡大図である。
１０・・・・・・船尾管、１２・・・・・・プロペラ軸
、１３・・・…プロペラ軸テーパ部、１４……プロペラ
軸おねじ部、１５……プロペラ、１６……プロペラポス
、１７・・・…中間リング、１８……ナット、２０…”
ボンネット、２２……シール、２３……ライナ、２４，
２５・・・・・・ねじ部（係合部）。
第１図第２図
第３図
第４図Fig. 1 is a longitudinal sectional view showing a conventional example, Figs. 2 to 4 show an embodiment of the present invention, Fig. 2 is a longitudinal sectional view showing an installed state, and Fig. 3 shows a state in the middle of removal. The vertical sectional view, FIG. 4, is an enlarged view of section A in FIG. 3. 10... Stern tube, 12... Propeller shaft, 13... Propeller shaft taper part, 14... Propeller shaft male threaded part, 15... Propeller, 16... Propeller post, 17 ...Middle ring, 18...Nut, 20..."
Bonnet, 22...Seal, 23...Liner, 24,
25...Threaded part (engaging part). Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
ーパ部１３が形成され、このテーパ部１３にプロペラ１
５のボス１６が圧入嵌合され、プロペラボス１６の後方
に突出したプロペラ軸１２の後端部におねじ部１４が形
成され、このおねじ部１４に、内外両面にねじが形成さ
れた中間リング１７がねじ嵌められ、この中間リング１
７の外面に、ナツト１８が、プロペラボス１６の後端面
に接するとともにプロペラボス１６に対して回転しない
ようにねじ嵌められ、プロペラボス１６の後端部に、プ
ロペラ軸１２のおねじ部１４、中間リング１７およびナ
ツト１８を覆ってナツト１８が軸方向にほとんど移動し
ないようにするとともにプロペラボス１６の後端部を密
閉するためのボンネツト２０が水密状に取付けられ、プ
ロペラボス１６の前端部に、船尾管１０に設けられたシ
ール２２に摺接する円筒状のライナ２３が設けられ、船
尾管１０とライナ２３とに、プロペラボス１６を前方に
移動させたときに互いに係合する係合部２４，２５がそ
れぞれ設けられ、プロペラ軸１２が中間リング１７に対
して軸方向に移動させられたときに軸力によって中間リ
ング１７が回転しうるように、プロペラ軸１２のおねじ
部１４と中間リング１７内面のねじのリード角が大きく
なっている舶用プロペラの取付構造。1 A tapered part 13 is formed at the rear of the propeller shaft 12 supported by the stern tube 10, and the propeller 1 is attached to this tapered part 13.
A threaded portion 14 is formed at the rear end of the propeller shaft 12, which is press-fitted with the boss 16 of No. 5, and which projects rearward of the propeller boss 16. A ring 17 is screwed into this intermediate ring 1.
A nut 18 is screwed onto the outer surface of the propeller shaft 12 so as to be in contact with the rear end surface of the propeller boss 16 and not rotate with respect to the propeller boss 16. A bonnet 20 is installed in a watertight manner to cover the intermediate ring 17 and the nut 18 so that the nut 18 hardly moves in the axial direction, and to seal the rear end of the propeller boss 16. , a cylindrical liner 23 that slides into contact with a seal 22 provided on the stern tube 10 is provided, and the stern tube 10 and the liner 23 have an engaging portion 24 that engages with each other when the propeller boss 16 is moved forward. , 25 are provided, respectively, so that when the propeller shaft 12 is moved in the axial direction with respect to the intermediate ring 17, the intermediate ring 17 can be rotated by the axial force. 17 Marine propeller mounting structure with a large internal screw lead angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11059480A JPS609959B2 (en) | 1980-08-11 | 1980-08-11 | Marine propeller mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11059480A JPS609959B2 (en) | 1980-08-11 | 1980-08-11 | Marine propeller mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5737097A JPS5737097A (en) | 1982-03-01 |
| JPS609959B2 true JPS609959B2 (en) | 1985-03-14 |
Family
ID=14539806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11059480A Expired JPS609959B2 (en) | 1980-08-11 | 1980-08-11 | Marine propeller mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609959B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020142827A1 (en) * | 2019-01-09 | 2020-07-16 | Jeremy Leonard | Centrifugal separator |
-
1980
- 1980-08-11 JP JP11059480A patent/JPS609959B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020142827A1 (en) * | 2019-01-09 | 2020-07-16 | Jeremy Leonard | Centrifugal separator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5737097A (en) | 1982-03-01 |
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