CN-122009388-A - Constant tension mooring device of ship mooring rope machine and test method

CN122009388ACN 122009388 ACN122009388 ACN 122009388ACN-122009388-A

Abstract

The invention relates to the technical field of ship mooring tests and discloses a constant tension mooring device of a ship mooring rope machine and a test method, wherein the ship mooring rope machine comprises a plurality of ship mooring rope machines, a driving device and a mooring rope machine body, wherein the mooring rope is wound on the mooring rope machine body, and the driving device is in transmission connection with the mooring rope machine body; each shipborne mooring rope machine is provided with a tension detection unit and a travel detection unit, a ship-borne bollard comprises a bow bollard and a stern bollard, wherein the bow bollard and the stern bollard are symmetrically arranged along the head-tail direction of the ship, a plurality of wharf bollards, each wharf bollard is used for fixing the free end of a mooring rope, and a central controller is electrically connected with all driving devices, the tension detection units and the travel detection units. According to the constant tension mooring device and the testing method for the ship mooring rope machine, the constant tension mooring rope machine is synchronously linked with the central controller through the head-to-tail symmetrical arrangement of the mooring ropes, so that safe, efficient and high-precision constant tension mooring tests are realized.

Inventors

WANG YAOHUI
CHEN JIAN
MA JUNWEI
ZHANG XIZHAO
CHEN HUI

Assignees

广州文冲船厂有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260317

Claims (10)

1. A constant tension mooring device for a marine mooring line machine, comprising: the ship-borne mooring rope machine comprises mooring ropes, a driving device and a mooring rope machine body, wherein the mooring ropes are wound on the mooring rope machine body, and the driving device is in transmission connection with the mooring rope machine body; Each shipborne mooring rope machine is provided with a tension detection unit for acquiring tension data corresponding to the mooring rope in real time and a travel detection unit for acquiring retraction length and speed data corresponding to the mooring rope in real time; the ship bollard is used for being fixed on a ship deck and comprises a bow bollard and a stern bollard, wherein the bow bollard and the stern bollard are symmetrically arranged along the head-tail direction of the ship; A plurality of quay bollards for securing to a quay, each of said quay bollards being adapted to secure a free end of a mooring line corresponding to a location directed rearward by said ship's bollards; and the central controller is electrically connected with all the driving devices, the tension detection units and the stroke detection units.
2. A constant tension mooring device for a ship mooring line machine according to claim 1, wherein said mooring line between said ship mooring bollard and said quay mooring bollard forms a line segment, said line segment forming an angle a with the longitudinal axis of the ship, said angle a being in the range of 45 DEG to 60 deg.
3. The constant tension mooring device for a ship anchor line machine according to claim 1, wherein a plurality of the quay bollards are arranged at intervals, and the interval distance between the adjacent quay bollards is 3m-8m.
4. The constant tension mooring device for a ship anchor line machine according to claim 1, wherein the bow bollard comprises a port bow bollard, a starboard bow bollard, and a bow center bollard, and the stern bollard comprises a port stern bollard, a starboard stern bollard, and a stern center bollard.
5. A method of testing a constant tension mooring device for a ship mooring line machine, the method comprising the steps of: Winding one end of a mooring rope on a shipborne anchor rope machine body, guiding the other end of the mooring rope through shipborne mooring piles in sequence, and fixing the mooring rope on a corresponding wharf bollard, so that the fixed mooring ropes are arranged in engineering symmetry relative to a longitudinal axis of a ship, and setting a test tension range; the synchronous starting test step comprises the steps of simultaneously sending starting instructions to the driving devices of all the shipborne anchor cable machines through the central controller, so that the shipborne anchor cable machines work; In the tide change process, the central controller adjusts the driving device of each shipborne anchor rope machine according to the deviation between the tension data of each mooring rope collected by the tension detection unit in real time and a preset constant tension target value, so that the tension of all mooring ropes is maintained in a set test tension range in real time; Monitoring and recording the working state of each shipborne anchor and cable machine and cable tension data acquired by the tension detection unit in real time; and judging whether the test is qualified or not according to the monitoring and recording data in the test process monitoring and recording step after the test is continued for at least one complete tidal unidirectional change process.
6. The method of claim 5, wherein in the step of setting the mooring lines and parameters, the mooring lines are in a relaxed state when they are secured to the corresponding quay bollards.
7. The method of claim 5, wherein in the step of synchronously starting the test, the start command controls all the on-board mooring line machines to start operating from a predetermined non-zero start gear corresponding to a lower limit of the test tension range.
8. The method according to claim 5, wherein in the step of controlling the self-adaptive constant tension, when the tension of the mooring rope reaches the upper limit value of the test tension range, equidistant physical travel marks are performed on the mooring rope.
9. The method for testing a constant tension mooring device for a ship anchor line machine according to claim 8, wherein the distance between the physical travel marks is 500mm.
10. The method of testing a constant tension mooring device for a marine mooring line machine according to claim 5 wherein in said step of setting the belt and parameters, said test tension is set in the range of 25% to 75% of the safe operating load of the mooring line.

Description

Constant tension mooring device of ship mooring rope machine and test method Technical Field The invention relates to the technical field of ship mooring tests, in particular to a constant tension mooring device of a ship mooring rope machine and a test method. Background The ship mooring system is a key device for guaranteeing the safety of mooring ships at a wharf. With the development of large-scale ships and the complexity of marine environments, the conventional mooring mode is easy to generate multi-directional movements such as rolling, pitching, heave and the like under the action of wind, wave, current and tide changes, so that the tension of a mooring rope is suddenly changed, and the risk of breaking the mooring rope is obviously increased. Therefore, a constant tension mooring system is generated, and the mooring safety and stability are improved by monitoring and automatically adjusting the tension of the mooring rope in real time so that the mooring rope is always maintained within a preset constant tension range. The existing constant tension mooring system is mainly a shipborne independent control unit, each anchor cable machine operates independently, and integrated design and multi-machine cooperative control mechanism for wharf facilities are lacked. In the ship mooring test link, due to the lack of a uniform control interface and a cooperative control algorithm, the tension of each cable is independently regulated, so that the balance of the overall tension is difficult to maintain under tidal change, meanwhile, the length difference of each cable is large due to the limitation of the fixed arrangement mode of the wharf cable piles, particularly, the length difference of a bow transverse cable and a stern transverse cable is insufficient, the condition of resisting transverse force is poor, the stress difference of the cables is large in the test process, and the cable breakage risk is easy to cause. Therefore, in order to ensure safety, the prior art only can adopt a test mode of 'single machine or batch, long time and manual monitoring', and generally needs to carry out multiple tests in batches, each time lasting for 6 hours, the test efficiency is low, the labor cost is high, and the actual mooring working condition of the ship under the cooperative action of multiple mooring ropes is difficult to truly simulate. Disclosure of Invention Aims at solving at least one of the technical problems existing in the prior art. The invention provides a constant tension mooring device and a testing method for a ship anchor rope machine, which realize safe, efficient and high-precision constant tension mooring tests for a plurality of ship anchor rope machines through synchronous linkage of head-tail symmetrical arrangement of a plurality of mooring ropes and a central controller. In order to achieve the above object, the present invention provides a constant tension mooring device for a ship anchor line machine, comprising: the ship-borne mooring rope machine comprises mooring ropes, a driving device and a mooring rope machine body, wherein the mooring ropes are wound on the mooring rope machine body, and the driving device is in transmission connection with the mooring rope machine body; Each shipborne mooring rope machine is provided with a tension detection unit for acquiring tension data corresponding to the mooring rope in real time and a travel detection unit for acquiring retraction length and speed data corresponding to the mooring rope in real time; the ship bollard is used for being fixed on a ship deck and comprises a bow bollard and a stern bollard, wherein the bow bollard and the stern bollard are symmetrically arranged along the head-tail direction of the ship; A plurality of quay bollards for securing to a quay, each of said quay bollards being adapted to secure a free end of a mooring line corresponding to a location directed rearward by said ship's bollards; and the central controller is electrically connected with all the driving devices, the tension detection units and the stroke detection units. Preferably, the mooring rope between the shipboard bollard and the wharf bollard forms a rope section, an included angle a is formed between the rope section and the longitudinal axis of the ship, and the included angle a is set at 45-60 degrees. Preferably, a plurality of wharf bollards are arranged at intervals, and the interval distance between adjacent wharf bollards is 3m-8m. As a preferred scheme, the bow bollard comprises a port-head bollard, a starboard-head bollard and a bow-center bollard, and the stern bollard comprises a port-tail bollard, a starboard-tail bollard and a stern-center bollard. A test method of a constant tension mooring device of a ship anchor rope machine is used for testing the constant tension mooring device of the ship anchor rope machine, and comprises the following steps: Winding one end of a mooring rope on a shipborne anchor rope machine body, guidin