CN101966866A - Automatic ship mooring machine and mooring rope tension setting method - Google Patents

Automatic ship mooring machine and mooring rope tension setting method Download PDF

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Publication number
CN101966866A
CN101966866A CN 201010513011 CN201010513011A CN101966866A CN 101966866 A CN101966866 A CN 101966866A CN 201010513011 CN201010513011 CN 201010513011 CN 201010513011 A CN201010513011 A CN 201010513011A CN 101966866 A CN101966866 A CN 101966866A
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CN
China
Prior art keywords
electrical motor
hawser
pull
automatic ship
setting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201010513011
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Chinese (zh)
Inventor
张良基
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Electrical Apparatus Research Institute Group Co Ltd
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Shanghai Electrical Apparatus Research Institute Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Electrical Apparatus Research Institute Group Co Ltd filed Critical Shanghai Electrical Apparatus Research Institute Group Co Ltd
Priority to CN 201010513011 priority Critical patent/CN101966866A/en
Publication of CN101966866A publication Critical patent/CN101966866A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an automatic ship mooring machine and a mooring rope tension setting method. The automatic ship mooring machine comprises an electromotor, a mooring rope and a time relay, wherein the non drive end of the electromotor is provided with a direct current (DC) electromagnetic brake; the electromotor is connected with the mooring rope through a reduction gear box; and the electromotor is electrically connected with the time relay and is intermittently started under the control of the time relay. The automatic ship mooring machine and the mooring rope tension setting method realize automatic ship mooring through intermittent start operation by setting the stall torque of the electromotor as a tension detection setting value, improve safety and reliability of ships and reduce labor intensity of crews.

Description

Automatic ship mooring machine and hawser pull setting method thereof
Technical field
The present invention relates to a kind of mooring machine and hawser pull setting method thereof, relate in particular to a kind of automatic ship mooring machine and hawser pull setting method thereof.
Background technology
During ship mooring, produce the change of drauht amount owing to the variation of cargo capacity; Produce height between deck plane and the harbour plane and change owing to the fluctuation of flood tide makes; Cause the inclination of boats and ships owing to the loading and unloading heavy-lift cargo; Because wave and boats and ships former thereby that cause such as current, wind direction move and wave in the port, also have other many former thereby make the pulling force of mooring hawser that rapid increase or minimizing take place, these all can make boats and ships be shifted or hawser is broken and caused danger.For fear of the generation of this class accident, the crewman must carry out periodic inspection to the mooring hawser, by rule of thumb by manually carrying out take-up or cable laying.Do like this, it is constant that the pulling force of hawser can not keep, and especially runs into big stormy waves (as running into stronger tropical storm) when mooring, and it is just very difficult that the crewman adjusts hawser pull, and the accident that meets accident easily.
Be equipped with on the ship can keep the constant device of ship mooring hawser pull automatically after, just can avoid the generation of above-mentioned situation.When the mooring chain rope tension changes, as the electronic function automatic drive that detects hawser pull, emit or tighten up hawser, constant with the pulling force that keeps hawser, to prevent that hawser from breaking or lax and make the boats and ships displacement.This not only reaches and alleviates crewman's labour intensity, improves the purpose of safety of ship reliability, and can improve the shipboard automation level.
Summary of the invention
Technical matters to be solved by this invention provides a kind of automatic ship mooring machine and hawser pull setting method thereof, improves the safety of ship reliability, alleviates crewman's labour intensity.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of automatic ship mooring machine, comprise electrical motor, hawser and time relay, described electrical motor non-shaft stretching end has dc electromagnetic brake, described electrical motor links to each other with hawser by reducing gearbox, described electrical motor and time relay are electrically connected, and do intermittent start under time relay control.
Above-mentioned automatic ship mooring machine, wherein, the number of poles of described electrical motor is 2,4,8 or 24 utmost points.
The present invention also provides a kind of above-mentioned automatic ship mooring machine hawser pull setting method for solving the problems of the technologies described above, and comprises the steps:
Setting hawser pull detection setting valve is the electrical motor stalling torque, according to stalling torque calculating motor input voltage; Electrical motor with the predetermined cycle, drives reducing gearbox and do the intermittent start running on the direction of take-up under the control of time relay; If hawser pull is greater than the stalling torque of electrical motor, electrical motor reverses under the effect of hawser pull, and cable laying reduces hawser pull; Otherwise, if hawser pull less than the stalling torque of electrical motor, electrical motor just just changes, and tightens up hawser, hawser pull is increased, until the electrical motor stall.
Above-mentioned automatic ship mooring machine hawser pull setting method, wherein, when the pulling force of hawser in blunt district scope, electrical motor is take-up neither, also cable laying not; Described blunt district is provided with as follows: be that hawser pull detects setting valve and multiply by mechanical efficiency during take-up, and be that hawser pull detects setting valve divided by mechanical efficiency during cable laying that the mechanical efficiency value is 0.7~0.9.
The present invention contrasts prior art following beneficial effect: automatic ship mooring machine provided by the invention and hawser pull setting method thereof, the pulling force that utilizes electrical motor to carry out hawser detects, by the stalling torque of setting electrical motor is that pulling force detects setting valve, realize automatic ship mooring by the intermittent start running, improve the safety of ship reliability, alleviate crewman's labour intensity.
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Description of drawings
Fig. 1 is the automatic ship mooring machine of a present invention structural representation;
Fig. 2 is electrical motor 24 utmost point short circuit characteristic curve scheme drawings of the present invention;
Cycle of operations scheme drawing when Fig. 3 is the automatic mooring machine of the present invention automatic operating.
 
Among the figure:
1 electrical motor, 2 dc electromagnetic brakes, 3 time relays
4 cable reels, 5 reducing gearboxs
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the automatic ship mooring machine of a present invention structural representation.
See also Fig. 1, automatic ship mooring machine provided by the invention comprises electrical motor 1, described electrical motor 1 non-shaft stretching end has dc electromagnetic brake 2, described electrical motor 1 links to each other with cable reel 4 by reducing gearbox 5, described electrical motor 1 and time relay 3 are electrically connected, and do intermittent start under time relay control.Automatic ship mooring machine hawser pull setting method provided by the invention, the pulling force that utilizes electrical motor to carry out hawser detects.Concrete steps are as follows: electrical motor is with the predetermined cycle, and reducing gearbox is done the intermittent start running on the direction of take-up, and the stalling torque of electrical motor is pulling force and detects setting valve.If hawser pull is greater than the stalling torque of electrical motor, electrical motor will reverse under the effect of hawser pull, and promptly cable laying reduces hawser pull; Otherwise, if hawser pull less than the stalling torque of electrical motor, electrical motor just just changes, and tightens up hawser, hawser pull is increased, until the electrical motor stall, promptly till hawser pull and the electrical motor stalling torque balance.
Keep the constant of the different pulling force of ship mooring hawser, as long as change the setting valve that the electrical motor input voltage reaches required pulling force, promptly the stalling torque of electrical motor gets final product.
In fact, hawser pull does not need to adjust incessantly, and promptly electrical motor needn't be incessantly detects hawser pull, as long as detect with the predetermined cycle, promptly electrical motor is done intermittent start, adjusts hawser pull.Start 15 seconds in 5 minutes as the interval, or started 20 seconds or the like in 2 minutes at interval.Accomplish this point, as long as the run up time of in control path, coming the control motor with time relay or time gap oscillator.
The present invention is developed into 10 tons of automatic ship mooring machines with the method that above-mentioned hawser detects, and utilizes the time gap oscillator, and with the predetermined cycle, actuating motor is adjusted hawser pull off and on, to keep hawser pull constant.
Motor parameter is:
Power supply: AC380V 50HZ; Number of poles: 2/4/8/24 utmost point;
Power: 44/44/22/5.2 kW; Pulling force sense cycle: detected 20 seconds in 2 minutes;
Automatically use number of poles the time: 24 utmost points; Mode: continuous control, intermittent working.
The electrical motor non-shaft stretching end has dc electromagnetic brake.2 utmost points of electrical motor, 4 utmost points, 8 utmost points are used for using when boats and ships lean on slipping from alongside manual methods quickly retracting hawser to use.Can use manual methods conversion number of poles by master controller in the use.
For electrical motor, different input voltages just has different stalling torques, therefore as long as change input voltage U, can obtain different pulling force setting valves.Fig. 2 is electrical motor 24 utmost point locked rotor characteristic curves of the present invention, can be drawn the relation of locked rotor current Id, stalling torque Md and input voltage Ud by curve.
 
The pulling force setting valve Stalling torque Input voltage Locked rotor current
7.5 ton 27kg-m 270V 48A
5 tons 18kg-m 230V 42A
3 tons 11kg-m 180V 38A
This shows, at the pulling force setting valve is 7.5 tons of shelves, the electrical motor stalling torque is 27kg-m, the electrical motor input voltage is 270V, the locked rotor current that can be drawn electrical motor this moment by curve is 48A, less than its rated current 52A, and the automatic compensation hawser pull is the motor start-up operating mode every energising in 2 minutes 20 seconds, and promptly load duration factor is 14.3%.Therefore, from the angle of electric motor overheating, can satisfy the requirement of automatic stranded cable operating mode fully.
Cycle of operations scheme drawing when Fig. 3 is the automatic mooring machine of the present invention automatic operating.
See also Fig. 3, T1 is a work-hours, span 10~20 seconds, and T2 is off time, span 1~15 minute.Because the effect of mechanical efficiency, motor power or hawser pull will lose portion of energy during the automatic deploying and retracting cable, and the value of thrust of hawser is different when therefore beginning take-up or beginning cable laying, and its difference range depends on the size of mechanical efficiency.This scope is referred to as automatic operating " blunt district ", and different pulling force setting valves has different " blunt district ".The existence in " blunt district " has prevented that automatic mooring machine is too sensitive and has produced deletrious " vibration of folding and unfolding cable ", and helped the balance of each automatic mooring machine of full ship.
Hawser pull was as follows when automatic mooring machine of the present invention began the folding and unfolding cable:
Hawser pull setting valve: 7.5/5.0/3.0 tons
Hawser pull during the beginning take-up: 6.0/4.0/2.4 tons
Hawser pull during the beginning cable laying: 9.4/6.3/3.8 tons
" the blunt district " of folding and unfolding cable: 3.4/2.3/1.4 tons.
The pulling force of hawser in " blunt district " scope, neither take-up, also cable laying not keeps the relative equilibrium situation.The size of mechanical efficiency (motor efficiency and reducing gearbox efficient) is depended in " blunt district ", is that setting valve multiply by efficient during take-up, and is that setting valve is divided by mechanical efficiency during cable laying.The general value 0.7~0.9 of mechanical efficiency is that example result of calculation is as follows with 0.8:
Hawser pull setting valve: 7.5/5.0/3.0 ton
Hawser pull during the beginning take-up: 6.0/4.0/2.4 ton
Hawser pull during the beginning cable laying: the 9.37/6.25/3.75 ton is more or less the same with actual.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.

Claims (4)

1. automatic ship mooring machine, it is characterized in that, described automatic ship mooring machine comprises electrical motor (1), hawser (4) and time relay (3), described electrical motor (1) non-shaft stretching end has dc electromagnetic brake (2), described electrical motor (1) links to each other with hawser (4) by reducing gearbox (5), described electrical motor (1) and time relay (3) are electrically connected, and do intermittent start under time relay (3) control.
2. automatic ship mooring machine as claimed in claim 1 is characterized in that, the number of poles of described electrical motor (1) is 2,4,8 or 24 utmost points.
3. an automatic ship mooring machine hawser pull setting method as claimed in claim 1 is characterized in that described method comprises the steps:
Setting hawser pull detection setting valve is the electrical motor stalling torque, according to stalling torque calculating motor input voltage;
Electrical motor (1) with the predetermined cycle, drives reducing gearbox (5) and do the intermittent start running on the direction of take-up under the control of time relay (3);
If hawser (4) pulling force is greater than the stalling torque of electrical motor (1), electrical motor (1) reverses under the effect of hawser pull, and cable laying reduces hawser pull; Otherwise, if hawser pull less than the stalling torque of electrical motor, electrical motor (1) just just changes, and tightens up hawser, hawser pull is increased, until the electrical motor stall.
4. automatic ship mooring machine hawser pull setting method as claimed in claim 3 is characterized in that, when the pulling force of hawser in blunt district scope, neither take-up of electrical motor (1), also cable laying not; Described blunt district is provided with as follows: be that hawser pull detects setting valve and multiply by mechanical efficiency during take-up, and be that hawser pull detects setting valve divided by mechanical efficiency during cable laying that the mechanical efficiency value is 0.7~0.9.
CN 201010513011 2010-10-20 2010-10-20 Automatic ship mooring machine and mooring rope tension setting method Pending CN101966866A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN 201010513011 CN101966866A (en) 2010-10-20 2010-10-20 Automatic ship mooring machine and mooring rope tension setting method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105151234A (en) * 2015-10-08 2015-12-16 宁波市鄞州发辉机械科技有限公司 Pole lifting device of positioning pole
CN109000840A (en) * 2018-06-25 2018-12-14 联合汽车电子有限公司 Rotary system stalling torque measuring device and its measurement method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628079A (en) * 1979-08-13 1981-03-19 Nippon Kokan Kk <Nkk> Automatic mooring method
JP2005255058A (en) * 2004-03-12 2005-09-22 Shin Kurushima Dockyard Co Ltd Automated pier-docking/mooring device and automatic pier-docking/mooring method of ship
CN201351094Y (en) * 2009-01-16 2009-11-25 江苏淮阴船用机械有限公司 Constant-tension control system of automatic mooring winch for ship

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628079A (en) * 1979-08-13 1981-03-19 Nippon Kokan Kk <Nkk> Automatic mooring method
JP2005255058A (en) * 2004-03-12 2005-09-22 Shin Kurushima Dockyard Co Ltd Automated pier-docking/mooring device and automatic pier-docking/mooring method of ship
CN201351094Y (en) * 2009-01-16 2009-11-25 江苏淮阴船用机械有限公司 Constant-tension control system of automatic mooring winch for ship

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
《机电设备》 19960831 徐道申 船舶电动自动系泊绞车的研制 第22-25页 1-4 , 第4期 *
《电机与控制应用》 19840831 张良基 10吨船舶自动系缆机电动机及控制站 第29页 1-4 , 第4期 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105151234A (en) * 2015-10-08 2015-12-16 宁波市鄞州发辉机械科技有限公司 Pole lifting device of positioning pole
CN109000840A (en) * 2018-06-25 2018-12-14 联合汽车电子有限公司 Rotary system stalling torque measuring device and its measurement method

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Application publication date: 20110209

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