JPS6385497U - - Google Patents

Description

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

第１，２図は本考案の一実施例としての舶用二
重反転プロペラ用軸受潤滑装置を示すもので、第
１図はその模式的な縦断面図、第２図ａは第１図
のａ―ａ矢視断面図、第２図ｂは第１図の
ｂ―ｂ矢視断面図、第２図ｃは第１図のｃ―
ｃ矢視断面図であり、第３図は通常の一軸船に
おける静圧軸受を示す縦断面図であり、第４図は
静圧軸受による従来の舶用二重反転プロペラ用軸
受潤滑装置の要部を示す横断面図である。 １……内軸、２……外軸、３……後側プロペラ
、４……前側プロペラ、５……２つ割れ中空軸、
６……船首側内軸軸受（静圧軸受）、６ａ……軸
受ブツシユ、６ｂ……排油溝、７……船尾側内軸
軸受（静圧軸受）、７ａ……軸受ブツシユ、７ｂ
……排油溝、８……前部外軸軸受としての船首側
外軸軸受（船尾管軸受）、９……後部外軸軸受と
しての船尾側外軸軸受（静圧軸受）、９ａ……軸
受ブツシユ、９ｂ……排油溝、１０……内軸用シ
ール装置、１１，１２……外軸用シール装置、１
３……内軸用シール装置、１４……ロープガード
、１５……スタンフレーム、１６……機関室の後
部隔壁、１７……内軸内給油通路、１８……放射
状給油孔、１９ａ……第１排油孔、１９ｂ……第
２排油孔、１９ｃ……第３排油孔、２０，２１…
…排油管、２２……高圧給油管、２７，２８……
油室。 Figures 1 and 2 show a bearing lubricating device for a counter-rotating marine propeller as an embodiment of the present invention. Figure 1 is a schematic vertical cross-sectional view of the device, and Figure 2a is a - sectional view taken along arrow a, Figure 2 b is a sectional view taken along line bb in Figure 1, and Figure 2 c is taken as shown c in Figure 1.
Fig. 3 is a longitudinal sectional view showing a hydrostatic bearing in a normal single-shaft ship, and Fig. 4 is a main part of a conventional bearing lubrication system for a marine counter-rotating propeller using a hydrostatic bearing. FIG. 1... Inner shaft, 2... Outer shaft, 3... Rear propeller, 4... Front propeller, 5... Hollow shaft split in two,
6... Bow side inner shaft bearing (static pressure bearing), 6a... Bearing bush, 6b... Oil drain groove, 7... Stern side inner shaft bearing (static pressure bearing), 7a... Bearing bush, 7b
...Drain groove, 8... Bow side outer shaft bearing (stern tube bearing) as front outer shaft bearing, 9... Stern side outer shaft bearing (static pressure bearing) as rear outer shaft bearing, 9a... Bearing bush, 9b... Oil drain groove, 10... Seal device for inner shaft, 11, 12... Seal device for outer shaft, 1
3... Seal device for inner shaft, 14... Rope guard, 15... Stun frame, 16... Rear bulkhead of engine room, 17... Oil supply passage in inner shaft, 18... Radial oil supply hole, 19a... No. 1 oil drain hole, 19b...2nd oil drain hole, 19c...3rd oil drain hole, 20, 21...
...Oil drain pipe, 22...High pressure oil supply pipe, 27, 28...
Oil room.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 船尾に設けられた二重反転プロペラ軸系におい
て、内軸と、同内軸の外周に内軸軸受としての静
圧軸受を介して配設された管状の外軸と、同外軸
を支承する前部外軸軸受および後部外軸軸受とを
そなえるとともに、上記内軸の内部から同内軸外
周への複数の給油孔を通つて上記静圧軸受へ供給
された潤滑油を同静圧軸受から上記の外軸と内軸
とのすき間へ導いて排出しうる内軸軸受用潤滑油
排出系をそなえ、上記内軸軸受用潤滑油排出系が
、上記前部外軸軸受よりも前方で上記外軸の管壁
において軸心に対し１８０度をなす２個の位置に
形成された一対の第１排油孔と、上記の前部外軸
軸受と後部外軸軸受との間で上記外軸の管壁にお
いて軸心に対し１８０度をなすとともに上記第１
排油孔に対し位相差を有する２個の位置に形成さ
れた一対の第２排油孔とをそなえて構成されたこ
とを特徴とする、舶用二重反転プロペラ用軸受潤
滑装置。 In the contra-rotating propeller shaft system installed at the stern, the inner shaft, a tubular outer shaft installed on the outer periphery of the inner shaft via a hydrostatic bearing as an inner shaft bearing, and the outer shaft are supported. A front outer shaft bearing and a rear outer shaft bearing are provided, and lubricating oil is supplied from the hydrostatic bearing to the hydrostatic bearing through a plurality of oil supply holes from the inside of the inner shaft to the outer periphery of the inner shaft. A lubricant oil discharge system for the inner shaft bearing is provided which can be guided and discharged into the gap between the outer shaft and the inner shaft, and the lubricant oil discharge system for the inner shaft bearing is located in front of the front outer shaft bearing. The outer shaft is connected between a pair of first oil drain holes formed at two positions at 180 degrees with respect to the shaft center in the tube wall of the shaft, and the front outer shaft bearing and rear outer shaft bearing. 180 degrees to the axis on the pipe wall and the first
A bearing lubricating device for a counter-rotating marine propeller, comprising a pair of second oil drain holes formed at two positions having a phase difference with respect to the oil drain hole.