JPS606700U

JPS606700U - Elastic joint monitoring device for ship's main shaft system

Info

Publication number: JPS606700U
Application number: JP9722383U
Authority: JP
Inventors: 幕田　宏; 純一近藤
Original assignee: 三菱重工業株式会社
Priority date: 1983-06-23
Filing date: 1983-06-23
Publication date: 1985-01-18

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は船舶の主軸系を示す側面図、第２〜４図は本考
案の一実施例としての船舶の主軸系の弾性継手監視装置
を示すもので、１２図はその全体構成を示すブロック図
、第３図ａ、　　ｂは主機関出力軸側発生パルス信号Ｐ
１およびプロペラ軸側発生パルス信号Ｐ２を示すグラフ
であり、第３図ａは主軸系が無負荷状態におけるパルス
信号を示すグラフ、第３図すは主軸系に負荷が作用した
状態のパルス信号を示すグラフ、第４図はトルク変動演
算回路の処理フローを示す図である。１・・・・・・主機関、２・・・・・・主機関出力軸、
２ａ・・・・・・主機関出力軸側パルス発生部、３・・
・・・・プロペラ軸、３ａ・・・・・・プロペラ軸側パ
ルス発生部、４・・・・・・弾性継手、５・・・・・・
プロペラ、６・・・・・・波形整形回路、７・・・・・
・トルク変動演算回路、Ｐｌ、Ｐ２・・・・・・パルス
信号、Ａ・・・・・・アラーム信号。第３図（０）（ｂ）ト２−Fig. 1 is a side view showing the main shaft system of a ship, Figs. 2 to 4 show an elastic joint monitoring device for the main shaft system of a ship as an embodiment of the present invention, and Fig. 12 is a block diagram showing the overall configuration. Figures 3a and 3b show the pulse signal P generated on the main engine output shaft side.
1 and the propeller shaft side generated pulse signal P2, FIG. 3a is a graph showing the pulse signal when the main shaft system is under no load, and FIG. 3 is a graph showing the pulse signal when the main shaft system is under a load. The graph shown in FIG. 4 is a diagram showing the processing flow of the torque fluctuation calculation circuit. 1... Main engine, 2... Main engine output shaft,
2a... Main engine output shaft side pulse generator, 3...
...Propeller shaft, 3a... Propeller shaft side pulse generator, 4... Elastic joint, 5...
Propeller, 6... Waveform shaping circuit, 7...
- Torque fluctuation calculation circuit, Pl, P2...Pulse signal, A...Alarm signal. Figure 3 (0) (b) 2-

Claims

[Scope of utility model registration request]

a first pulse generating section that includes an elastic joint that connects a main engine output shaft and a propeller shaft in a main shaft system of a ship, and that generates a pulse signal according to a rotational phase of the main engine output shaft;
a second pulse generating section that generates a pulse signal according to the rotational phase of the propeller shaft; and a pulse signal from the first pulse generating section and a pulse signal from the second pulse generating section. An elastic joint monitoring device for a main shaft system of a ship, characterized in that a torque fluctuation calculation circuit is provided for calculating torque fluctuation in the elastic joint based on the phase difference of the elastic joint.