JPS62197497U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１〜３図は本考案の一実施例としての舶用二
重反転プロペラ軸封装置を示すもので、第１図は
同装置をそなえた舶用二重反転プロペラ軸系を示
す模式的な縦断面図、第２図はその要部を拡大し
て示す縦断面図、第３図はその外軸における圧縮
空気供給路の配置状態を示す外軸の横断面図であ
り、第４図は従来のシールリツプ型軸封装置を示
す縦断面図である。 １……船尾側内軸用軸封装置、１ａ……内軸軸
封用スリーブライナー、１ｂ……内軸軸封用環状
油室、１ｃ……セグメントシール部材、１ｄ……
シールリツプ、１ｅ……環状取付部材、１ｆ……
すき間、１ｇ……第１の油室、１ｈ……第２の油
室、１ｉ……第３の油室、１ｊ……すき間、２…
…船尾側外軸用軸封装置、２ａ……外軸軸封用ス
リーブライナー、２ｂ……外軸軸封用環状油室、
２ｃ……セグメントシール部材、２ｄ……シール
リツプ、２ｅ……環状取付部材、２ｆ……すき間
、２ｇ……第１の油室、２ｈ……第２の油室、２
ｉ……第３の油室、２ｊ……すき間、３……船首
側外軸用軸封装置、４……船首側内軸用軸封装置
、５……圧縮空気供給ユニツト、６……圧力チエ
ツク装置、７……空気圧力調整弁、８……ドレン
検出タンク、９……潤滑油タンク、１０……圧縮
空気供給路、１０ａ……内軸軸封用圧縮空気供給
路、１１……空気圧力チエツク用配管、１１ａ…
…空気圧力チエツク用穴、１２……空気圧力調整
用配管、１２ａ……空気圧力調整用穴、１３……
空気逃し管、１４……ドレン回収管、１４ａ……
空気逃し・ドレン回収穴、１５……船内制御用空
気配管、１６……船内雑用空気配管、１７……後
側プロペラ、１７ａ……後側プロペラボス、１８
……前側プロペラ、１８ａ……前側プロペラボス
、１９……内軸、２０……外軸、２１……外軸軸
受、２２……内軸軸受、２３……主機関、２４…
…反転機構、２５……スタンフレーム。 Figures 1 to 3 show a marine contra-rotating propeller shaft sealing device as an embodiment of the present invention, and Figure 1 is a schematic longitudinal section showing a marine contra-rotating propeller shaft system equipped with the same device. Fig. 2 is a vertical cross-sectional view showing an enlarged view of the main part, Fig. 3 is a cross-sectional view of the outer shaft showing the arrangement of the compressed air supply passage on the outer shaft, and Fig. 4 is a cross-sectional view of the conventional FIG. 3 is a longitudinal sectional view showing a seal lip type shaft sealing device. 1... Shaft sealing device for the stern side inner shaft, 1a... Sleeve liner for the inner shaft seal, 1b... Annular oil chamber for the inner shaft seal, 1c... Segment seal member, 1d...
Seal lip, 1e...Annular mounting member, 1f...
Gap, 1g...First oil chamber, 1h...Second oil chamber, 1i...Third oil chamber, 1j...Gap, 2...
...Shaft sealing device for the stern side outer shaft, 2a... Sleeve liner for the outer shaft seal, 2b... Annular oil chamber for the outer shaft seal,
2c... Segment seal member, 2d... Seal lip, 2e... Annular mounting member, 2f... Gap, 2g... First oil chamber, 2h... Second oil chamber, 2
i...Third oil chamber, 2j...Gap, 3...Shaft sealing device for the bow side outer shaft, 4...Shaft sealing device for the bow side inner shaft, 5...Compressed air supply unit, 6...Pressure Check device, 7... Air pressure regulating valve, 8... Drain detection tank, 9... Lubricating oil tank, 10... Compressed air supply path, 10a... Compressed air supply path for inner shaft seal, 11... Air Pressure check piping, 11a...
...Air pressure check hole, 12...Air pressure adjustment piping, 12a...Air pressure adjustment hole, 13...
Air release pipe, 14...Drain recovery pipe, 14a...
Air release/drain collection hole, 15...Inboard control air piping, 16...Inboard miscellaneous air piping, 17...Rear propeller, 17a...Rear propeller boss, 18
...Front propeller, 18a...Front propeller boss, 19...Inner shaft, 20...Outer shaft, 21...Outer shaft bearing, 22...Inner shaft bearing, 23...Main engine, 24...
... Reversing mechanism, 25... Stun frame.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 舶用二重反転プロペラにおける前側プロペラお
よび後側プロペラをそれぞれ後側にそなえた外軸
および内軸の船尾端における軸封装置において、
上記前側プロペラの直前における上記外軸の外周
に装着された外軸軸封用スリーブライナーと、上
記後側プロペラの直前における上記内軸の外周に
装着された内軸軸封用スリーブライナーとをそな
え、上記外軸軸封用スリーブライナーの外周に沿
い同スリーブライナーの回転摺動を許容しうるよ
うにスタンフレーム側に装着された外軸軸封用環
状空気室と、上記内軸軸封用スリーブライナーの
外周に沿い同スリーブライナーの回転摺動を許容
しうるように上記外軸の後端に装着された内軸軸
封用環状空気室とが設けられるとともに、船内の
圧縮空気源からスタンフレームに穿設された空気
通路を通つて上記外軸軸封用環状空気室へ連通す
る圧縮空気供給路と、上記外軸軸封用環状空気室
を経由した圧縮空気を上記の外軸軸封用スリーブ
ライナーおよび外軸にそれぞれ穿設された空気通
路を介し上記内軸軸封用環状空気室へ送給する内
軸軸封用圧縮空気供給路とが設けられたことを特
徴とする、舶用二重反転プロペラ軸封装置。 In a shaft sealing device at the stern end of an outer shaft and an inner shaft each having a front propeller and a rear propeller on the rear side of a contra-rotating marine propeller,
an outer shaft sealing sleeve liner attached to the outer circumference of the outer shaft immediately before the front propeller; and an inner shaft sealing sleeve liner attached to the outer circumference of the inner shaft immediately before the rear propeller. , an annular air chamber for outer shaft sealing attached to the stan frame side to allow rotational sliding of the sleeve liner along the outer periphery of the outer shaft sealing sleeve liner, and the inner shaft sealing sleeve. An annular air chamber for sealing the inner shaft is installed at the rear end of the outer shaft to allow the sleeve liner to rotate and slide along the outer periphery of the liner. a compressed air supply path that communicates with the outer shaft sealing annular air chamber through an air passage bored in the outer shaft sealing annular air chamber, and a compressed air supply path that communicates with the outer shaft sealing annular air chamber through an air passage bored in the outer shaft sealing annular air chamber; A second marine vessel characterized in that an inner shaft sealing compressed air supply path is provided for supplying compressed air to the inner shaft sealing annular air chamber through air passages bored in the sleeve liner and the outer shaft, respectively. Counter-rotating propeller shaft sealing device.