Ship propulsion motor online vibration monitoring system

Abstract

The invention discloses a ship propulsion motor online vibration monitoring system. The ship propulsion motor online vibration monitoring system is characterized by comprising a motor rotation speed sensor, a three-shaft acceleration sensor, a signal collection module and an upper computer; the motor rotation speed sensor is installed on an end cover of the motor for detecting the rotation speed of the motor in real time; the three-shaft acceleration sensor is directly installed on a motor seat of the motor for detecting vibration accelerated speeds in an axial direction (X), a radial direction (Y) and a vertical direction (Y) and converting a vibration accelerated signal to an accelerated speed electric signal; the signal collection module is connected to a motor rotation speed sensor and a three-shaft acceleration sensor and is used for collecting and transmitting the rotation speed electric signal and the accelerated speed electric signal; a database is installed on the upper computer and the upper computer is used for comparing the rotation speed electric signal and the accelerated speed electric signal with information in the database through operation after receiving the rotation speed electric signal and the accelerated speed electric signal, and diagnosing that whether the motor is currently in a fault coverage.

Description

technical field [0001] The invention relates to a monitoring system, in particular to an on-line vibration monitoring system of a marine propulsion motor. Background technique [0002] With the increasingly widespread application of electric propulsion systems in the field of ships, the number of propulsion motors on ships is increasing. It is not only the most important part of the ship's electric drive, but also one of the most frequently used equipment on the ship, so the normal operation of the rotating motor is very important to the safety of the ship. However, at present, the safety monitoring of marine motors is limited to the monitoring of electrical parameters, speed, winding and bearing temperature, and it is impossible to pre-judge other mechanical faults of the motor, so that many faults of the motor can only be discovered after they occur. The crew's personal safety poses a certain threat. [0003] In the marine sector, more than half of unplanned downtime is ...

AI Technical Summary

Problems solved by technology

However, at present, the safety monitoring of marine motors is limited to the monitoring of electrical parameters, speed, winding and bearing temperature, and it is impossible to pre-judge other mechanical faults of the motor, so that many faults of the motor can only be discovered after they occur. The personal safety of the crew poses a certain threat

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