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Ship shafting movement monitoring device

A motion monitoring and shafting technology, applied in the direction of measuring devices, instruments, etc., can solve the problem of no on-line monitoring device for ship shafting motion, and achieve the effect of improving operation safety and maintainability

Inactive Publication Date: 2015-09-23
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection of the operation performance of ship shafting is limited to the test of new ships and old ships after repairing. There is no monitoring system related to shafting motion during ship operation, and there is currently no online monitoring of ship shafting motion. device

Method used

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  • Ship shafting movement monitoring device
  • Ship shafting movement monitoring device
  • Ship shafting movement monitoring device

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Experimental program
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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] A ship shafting motion monitoring device, comprising:

[0024] The speed sensor used to measure the speed of the main engine is installed at a certain distance from the surface of the intermediate shaft;

[0025] The eddy current displacement sensor is installed at a certain distance from the horizontal surface of the intermediate shaft center outside the horizontal plane of the intermediate shaft, and is used to obtain the lateral displacement signal: lateral displacement X;

[0026] The eddy current displacement sensor is installed directly above the intermediate shaft at a certain distance from the tangent surface of the shaft surface, and is used to obtain the vertical displacement signal: vertical displacement Y;

[0027] The eddy current sensor is installed at a certain distance between the rigid coupling and the end face of the coupling, ...

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Abstract

A ship shafting movement monitoring device comprises a rotating speed sensor used for measuring the rotating speed of a host and arranged at the position having a certain distance with an intermediate shaft surface; an eddy current displacement sensor arranged at the position at the outer side of a central horizontal plane of an intermediate shaft and having a certain distance with a shaft surface tangent plane and used for obtaining a transverse displacement signal, namely the transverse displacement X. A ship shafting movement on-line monitoring device is provided, is specially developed for real-timely monitoring the ship shafting movement state, obtains a ship shafting movement state signal via the eddy current displacement sensor which is arranged at the position having a certain distance with a shafting surface and is easy to disassemble, finally displays the ship shafting movement state signal on a PC via the signal acquisition, storage and processing, has the real-time performance, analyzability, predictability and post processing performance, satisfies the actual ship on-line monitoring demand, and enables the operation safety and maintainability of a ship main propulsion device to be improved.

Description

technical field [0001] The invention relates to a motion monitoring device for a ship's shaft system, which belongs to the field of ship equipment. Background technique [0002] Ship shafting is an important part of ship power plant, and its normal operation is closely related to the safety of ship navigation. Since the shafting of the ship is affected by the excitation force of the main engine and the propeller, it will inevitably produce various vibrations (including torsional vibration, transverse vibration and longitudinal vibration, etc.); if it is characterized by displacement, the shafting motion state parameters can be used accomplish. Excessive shafting vibration will affect its normal operation, and even cause serious main propulsion system failures. Therefore, it is of great significance to carry out online monitoring of ship shafting motion. Shafting motion state parameters include its displacement state parameters in the X, Y, and Z directions and their coupli...

Claims

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Application Information

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IPC IPC(8): G01D21/02
Inventor 刘永恒温小飞徐韬俊杜敏熊雕胡贤民袁强董良雄
Owner ZHEJIANG OCEAN UNIV