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Hydraulic locking alarming system for electrohydraulic steering engine

An electro-hydraulic steering gear and alarm system technology, which is applied in the direction of rudder steering, ship, transportation and packaging, etc. It can solve the problems of interference and trouble in maintenance and after-sales work, and cannot accurately reflect hydraulic locking failures, etc., to achieve accurate and effective alarms Effect

Active Publication Date: 2015-03-18
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the "control failure alarm" is a comprehensive alarm, the cause of the alarm is not all hydraulic locking, so it cannot accurately reflect whether a hydraulic locking failure occurs, which will bring unnecessary interference and trouble to maintenance and after-sales work

Method used

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  • Hydraulic locking alarming system for electrohydraulic steering engine
  • Hydraulic locking alarming system for electrohydraulic steering engine

Examples

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Embodiment 1

[0017] An embodiment of the present invention provides an electro-hydraulic steering gear hydraulic locking alarm system, see figure 1 , the system consists of:

[0018] The detection element 2 for detecting the eccentric position of the variable pump, the judgment module 3 for obtaining the steering command issued by the steering mechanism 1 and judging whether it is in the hydraulic lock state according to the steering command and the eccentric position of the variable pump, and the judging module for 3. Judging the alarm module 4 that outputs an alarm signal when it is in the hydraulic locking state.

[0019] see figure 2 The detection element 2 includes a connecting rod 2D installed on the eccentric rod 2B of the variable pump and two proximity switches 2C used to detect the position of the connecting rod 2D. The two proximity switches 2C are installed on the top of the fuel tank 2A, and the connecting rod 2D is located Between the proximity switches 2C, an induction bl...

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PUM

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Abstract

The invention discloses a hydraulic locking alarming system for an electrohydraulic steering engine, which belongs to the technical field of ship equipment detection. The system comprises a detection element, a judging module and an alarming module, wherein the detecting element is used for detecting the offset position of a variable pump; the judging module is used for acquiring a steering command transmitted by a steering mechanism and judging whether the system is in a hydraulic locking state according to the steering command and the offset position of the variable pump; and the alarming module is used for outputting an alarming signal when the system is in the hydraulic locking state according to the judgment of the judging module. The detected position signal of the pump is transmitted to the judging module through the detection element arranged on the variable pump, and the judging module is used for judging whether the system is in the hydraulic locking state by comparing the steering command with the position signal, so that hydraulic locking failures can be alarmed accurately and effectively.

Description

technical field [0001] The invention relates to the technical field of ship equipment detection, in particular to an electro-hydraulic steering gear hydraulic locking alarm system. Background technique [0002] The steering gear is an important deck machinery on a ship, mainly used to turn the rudder and maintain the rudder position. At present, the steering gear usually adopts the electro-hydraulic drive mode, and the variable pump system is used to change the inclination direction of the swash plate to control the flow and direction of the hydraulic oil output by the variable pump, thereby pushing the tiller and driving the rudder stock to rotate to achieve steering. [0003] During the working process of the steering gear, the steering ability may be lost due to hydraulic lock; among them, the hydraulic lock means that the eccentric position of the variable pump (that is, the tilt direction of the swash plate in the variable pump) is inconsistent with the position given b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B45/00B63H25/30
Inventor 马志刚刘丽李海程立兵朱真利王爱萍高卓
Owner WUHAN MARINE MACHINERY PLANT
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