CN109760781A - The method for correcting error and system of hull tail portion block sliding based on two winches - Google Patents
The method for correcting error and system of hull tail portion block sliding based on two winches Download PDFInfo
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- CN109760781A CN109760781A CN201711106718.9A CN201711106718A CN109760781A CN 109760781 A CN109760781 A CN 109760781A CN 201711106718 A CN201711106718 A CN 201711106718A CN 109760781 A CN109760781 A CN 109760781A
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Abstract
The method for correcting error and system for the hull tail portion block sliding based on two winches that the invention discloses a kind of, wherein method includes: S1, the skidding distance for detecting the first winch, the connected slide plate of the second winch respectively in real time, and the first winch, the second winch are respectively arranged at building berth two sides and connect respectively with the slide plate of the support hull tail portion block of corresponding side sliding；S2, the skidding distance calculated between the first winch, the connected slide plate of the second winch are poor；S3, judge whether skidding distance absolute value of the difference exceeds preset threshold, if so, thening follow the steps S4；S4, judge whether skidding distance difference is positive value, be the motor speed for reducing the first winch, otherwise reduce the motor speed of the second winch.The present invention is poor by the skidding distance of two connected slide plates of winch of real-time detection, and adjusts winch output according to skidding distance difference and slide onto predetermined position come safety, steadily, controllably by hull tail portion block, realizes building berth " one and half shipbuildings " new approaches.
Description
Technical field
The present invention relates to field of shipbuilding, in particular to a kind of hull tail portion block sliding based on two winches is entangled
Inclined method and system.
Background technique
Currently, shipyard, which builds the ship period, is often limited to being lauched number of channels and can not building simultaneously more for dry type dock
Ship, seriously constrains production capacity.It is well known that since ship power mechanism and control system are generally all installed on the quarter, institute
With tail portion block, structure is complicated, and construction period is longer.In view of building berth carry build ship type it is relatively small when building berth tail portion still
There is the status in vacant place, is built so can be carried in the vacant place of building berth tail portion while building one whole ship in front
The tail portion block of latter ship is substantially shorter ship building period, simultaneously to realize building berth " one and half shipbuildings " new approaches
Improve berth utilization ratio.
The ship launching of building berth is the component offer downslide power by ship self gravity, so the ship of building berth once rises
Dynamic to be lauched, since partical gravity exists always, ship will accelerate always to glide, until ship enters water, make ship by the resistance of water
Oceangoing ship stopping moves forward, and the whole process of downslide is uncontrollable.Therefore, realizing the key of building berth " one and half shipbuildings " new approaches is
How to ensure that such as tail portion block gross weight up to huge tail portion block as 4000 tons should be safe, flat in entire slipping
Surely, predetermined position is controllably slid onto, in order to avoid huge tail portion block is out of control in sliding and causes great casualties and great
Property loss.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome in the prior art cannot safely, steadily, controllably will such as
Hull tail portion block gross weight slides onto predetermined position up to huge object as 4000 tons to realize building berth " one and half shipbuildings "
The defect of new approaches provides the method for correcting error and system of a kind of hull tail portion block sliding based on two winches.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of method for correcting error of the hull tail portion block sliding based on two winches, its main feature is that, comprising:
The skidding distance of S1, respectively the first winch of real-time detection, the connected slide plate of the second winch, first winch, institute
The second winch is stated to be respectively arranged at building berth two sides and connect with the slide plate of the support hull tail portion block of corresponding side sliding respectively；
S2, the skidding distance calculated between first winch, the connected slide plate of the second winch are poor；
S3, judge whether the skidding distance absolute value of the difference exceeds preset threshold, if so, thening follow the steps S4；
S4, judge whether the skidding distance difference is positive value, if so, the motor speed of first winch is reduced, if
It is no, then reduce the motor speed of second winch.
Preferably, before the step S1, the method for correcting error further include:
S0, the service brake for starting first winch, second winch simultaneously, the motor of first winch,
The motor of second winch is run by pre-set velocity value.
Preferably, the step S3 is specifically included: judge whether the skidding distance absolute value of the difference exceeds preset threshold,
If so, judging that the correction mode of the method for correcting error is manual correction mode or automatic deviation correction mode, if described manual
Correction mode thens follow the steps S4, S4 ' is thened follow the steps if the automatic deviation correction mode, described in the automatic deviation correction mode
First winch is set as main winch, and second winch is set as from winch, and the step S4 ' is specifically included: judging the cunning
Move whether range difference is positive value, if so, increasing the motor speed of second winch, if it is not, then reducing by second winch
Motor speed.
Preferably, reducing motor speed by the first attachment speed in the step S4, the first attachment speed is
It is configurable.
Preferably, motor speed is reduced or increased by the second attachment speed, described second is attached in the step S4 '
Part speed is configurable.
A kind of deviation-rectifying system of the hull tail portion block sliding based on two winches, its main feature is that, the deviation-rectifying system packet
The first winch, the second winch, detection module, computing module, judgment module, First Speed adjustment module are included,
First winch, second winch be respectively arranged at building berth two sides and respectively with the support hull tail of corresponding side
The slide plate connection of portion's block sliding；
The detection module is used to distinguish the sliding of the first winch described in real-time detection, the connected slide plate of the second winch
Distance,
The computing module is used to calculate the skidding distance between first winch, the connected slide plate of the second winch
Difference；
The judgment module is for judging whether the skidding distance absolute value of the difference exceeds preset threshold, described to sentence
Disconnected module is also used to judge whether the skidding distance difference is positive value, is called described in the second speed adjustment module reduction
Otherwise the motor speed of first winch calls the First Speed adjustment module to reduce the motor speed of second winch.
Preferably, the deviation-rectifying system further includes starting module, the starting module is used to call the detection module
Service brake that is preceding while starting first winch, second winch, the motor of first winch, described second twist
The motor of vehicle is run by pre-set velocity value.
Preferably, the deviation-rectifying system further includes second speed adjustment module,
The judgment module is for judging whether the skidding distance absolute value of the difference exceeds preset threshold, described to sentence
Disconnected module is also used to judge that the deviation-rectifying system is in manual correction mode or automatic deviation correction mode, the automatic deviation correction mould
First winch described in formula is set as main winch, and second winch is set as from winch,
The judgment module is also used to judge whether the skidding distance difference is positive value when for the manual correction mode,
It is the motor speed for calling the First Speed adjustment module to reduce by first winch, otherwise calls the First Speed tune
Mould preparation block reduces the motor speed of second winch；
The judgment module is also used to judge whether the skidding distance difference is positive value when for the automatic deviation correction mode,
It is the motor speed for calling the second speed adjustment module to increase second winch, otherwise calls the second speed tune
Mould preparation block reduces the motor speed of second winch.
Preferably, the First Speed adjustment module reduces by first winch or second strand by the first attachment speed
The motor speed of vehicle, the first attachment speed is configurable.
Preferably, the second speed adjustment module is reduced by the second attachment speed or is increased the motor of second winch
Revolving speed, the second attachment speed is configurable.
The positive effect of the present invention is that: the present invention by the slidings of two connected slide plates of winch of real-time detection away from
Deviation, and winch output is adjusted according to skidding distance difference, hull tail portion block is slid into pre-determined bit come safety, steadily, controllably
It sets, realizes building berth " one and half shipbuildings " new approaches.In addition, the present invention has a correction mode and automatic deviation correction mode manually, two kinds
Mode is mutually backups, and can further improve safety, reliability.
Detailed description of the invention
Fig. 1 is the flow chart of the method for correcting error of the hull tail portion block sliding based on two winches of the embodiment of the present invention 1.
Fig. 2 is the flow chart of the method for correcting error of the hull tail portion block sliding based on two winches of the embodiment of the present invention 2.
Fig. 3 is the schematic diagram of the deviation-rectifying system of the hull tail portion block sliding based on two winches of the embodiment of the present invention 3.
Fig. 4 is the schematic diagram of the deviation-rectifying system of the hull tail portion block sliding based on two winches of the embodiment of the present invention 4.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
Embodiment 1
As shown in Figure 1, the method for correcting error of the hull tail portion block sliding based on two winches of the present embodiment, comprising:
101, the skidding distance of the first winch of real-time detection, the connected slide plate of the second winch respectively, first winch, institute
The second winch is stated to be respectively arranged at building berth two sides and connect with the slide plate of the support hull tail portion block of corresponding side sliding respectively；
102, the skidding distance calculated between first winch, the connected slide plate of the second winch is poor；
In specific implementation, to guarantee that the slide plate of building berth two sides can safely, steadily, controllably slide hull tail portion block
It to predetermined position, needs that two winches are installed to provide brake force in building berth tail portion, so that sliding is in slave mode, wherein twisting
Vehicle traction tonnage should remove to select suitable tonnage according to the actual situation, and the winch that preferably traction tonnage is 20 tons in the present embodiment mentions
For sliding brake force.In addition, needing the sliding of two sideskid of real-time control to ensure in the entire sliding of hull tail portion block
Sliding be it is steady, controllable, at this moment just need to know in real time the skidding distance situation of two sideskids, so can be respectively by described
Corresponding absolute value encoder comes the first winch described in real-time detection, second winch on first winch, second winch
Rope capacity, wherein absolute value encoder be it is coaxial mounted with cable drum and slide plate start sliding before carried out
Clearing is crossed to guarantee that two sideskid Relative sliding range differences are zero.
103, judge whether the skidding distance absolute value of the difference exceeds preset threshold, if so, thening follow the steps 104；
104, judge whether the skidding distance difference is positive value, if so, the motor speed of first winch is reduced, if
It is no, then reduce the motor speed of second winch.
Further, in the step 104, motor speed, the first attachment speed are reduced by the first attachment speed
It is configurable.Wherein, the first attachment speed can be configured according to the actual situation.
101-104 through the above steps, two winches traction pontoon tail portion block can safely, steadily, can
Slide onto predetermined position to control.
Further, before the step 101, the method for correcting error further include:
100, start the service brake of first winch, second winch simultaneously, the motor of first winch,
The motor of second winch is run by pre-set velocity value.When it is implemented, first to the frequency converter of first winch, described
The frequency converter of second winch sends the work order of starting service brake simultaneously；The frequency converter of first winch, described
The frequency converter of two winches distinguishes excitation respectively motor and after establishing default rated moment after receiving the work order, such as
Default rated moment reaches 1.5 times of rated moments and restarts respective service brake, and then the motor of winch is transported by pre-set velocity
Row, further ensure that hull tail portion block can safely, steadily, controllably slide onto predetermined position.
Embodiment 2
As shown in Fig. 2, the method for correcting error and embodiment 1 of the hull tail portion block sliding based on two winches of the present embodiment
It is essentially identical, the difference is that:
The step 103 specifically includes: first determine whether the skidding distance absolute value of the difference exceeds preset threshold, if
It is then then to judge that the correction mode of the method for correcting error is manual correction mode or automatic deviation correction mode, if the hand
Dynamic correction mode then executes step 104 as described in Example 1, thens follow the steps 104 ' if the automatic deviation correction mode,
Described in the first winch described in automatic deviation correction mode be set as main winch, second winch is set as from winch, the step
Rapid 104 ' specifically include: judging whether the skidding distance difference is positive value, if so, the motor for increasing second winch turns
Speed, if it is not, then reducing the motor speed of second winch.Further, the step 104 ' in, press the second attachment speed
Reduce motor speed, the second attachment speed be it is configurable, the second attachment speed can be configured according to the actual situation.
In the present embodiment, not only have manually correction mode, also have automatic deviation correction mode, thus realize manual mode and
Automatic mode is mutually backups, and further increases the safety and reliability of sliding hull tail portion block.
Embodiment 3
As shown in figure 3, the deviation-rectifying system of the hull tail portion block sliding based on two winches of the present embodiment, including first
Winch 11, the second winch 12, detection module 13, computing module 14, judgment module 15, First Speed adjust module 16,
First winch 11, second winch 12 are respectively arranged at building berth two sides and pole a boat respectively with the branch of corresponding side
The slide plate connection of body tail portion block sliding；
The detection module 13 is for distinguishing the first winch 11 described in real-time detection, the connected slide plate of second winch 12
Skidding distance,
The computing module 14 is used to calculate the cunning between first winch 11, the connected slide plate of second winch 12
Move range difference；
The judgment module 15 is then described for judging whether the skidding distance absolute value of the difference exceeds preset threshold
Judgment module 15 is also used to judge whether the skidding distance difference is positive value, is that the First Speed adjustment module 16 is called to drop
Otherwise the motor speed of low first winch 11 calls the First Speed adjustment module 16 to reduce by second winch 12
Motor speed.Further, the First Speed adjustment module 16 reduces by first winch 11 or described by the first attachment speed
The motor speed of second winch 12, the first attachment speed is configurable.Wherein, the first attachment speed can be according to reality
Situation is configured.
Further, the deviation-rectifying system further includes starting module 10, and the starting module 10 is used to call the detection
Start the service brake of first winch 11, second winch 12, the electricity of first winch 11 before module 13 simultaneously
Machine, second winch 12 motor by pre-set velocity value run.
Embodiment 4
As shown in figure 4, the deviation-rectifying system of the hull tail portion block sliding based on two winches of the present embodiment, with embodiment
3 it is essentially identical, the difference is that: the embodiment of the present invention deviation-rectifying system further include second speed adjustment module 17,
The judgment module 15 is then described for judging whether the skidding distance absolute value of the difference exceeds preset threshold
Judgment module 15 is also used to judge that the deviation-rectifying system is to be in manual correction mode or automatic deviation correction mode, described to entangle automatically
First winch described in inclined mode is set as main winch, and second winch is set as from winch,
It is still described like that with embodiment 3 when for the manual correction mode, i.e., the described judgment module 15 is also used to sentence
Whether the skidding distance difference of breaking is positive value, is the electricity for calling the First Speed adjustment module 16 to reduce by first winch
Otherwise machine revolving speed calls the First Speed adjustment module 16 to reduce the motor speed of second winch；Wherein, described first
Speed adjust module 16 by the first attachment speed reduce motor speed, the first attachment speed be it is configurable, state the first attachment
Speed can be configured according to the actual situation；
The judgment module 15 is also used to judge whether the skidding distance difference is positive when for the automatic deviation correction mode
Value is the motor speed for calling the second speed adjustment module 17 to increase second winch, otherwise calls described second
Speed adjustment module 17 reduces the motor speed of second winch 12.Further, second speed adjustment module 17 is by the
Two attachment speed reduce or increase the motor speed of second winch, and the second attachment speed is configurable.Wherein, described
Second attachment speed can be configured according to the actual situation.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of method for correcting error of the hull tail portion block sliding based on two winches characterized by comprising
The skidding distance of S1, respectively the first winch of real-time detection, the connected slide plate of the second winch, first winch, described
Two winches are respectively arranged at building berth two sides and connect respectively with the slide plate of the support hull tail portion block of corresponding side sliding；
S2, the skidding distance calculated between first winch, the connected slide plate of the second winch are poor；
S3, judge whether the skidding distance absolute value of the difference exceeds preset threshold, if so, thening follow the steps S4；
S4, judge whether the skidding distance difference is positive value, if so, the motor speed of first winch is reduced, if it is not, then
Reduce the motor speed of second winch.
2. the method for correcting error of the hull tail portion block sliding as described in claim 1 based on two winches, which is characterized in that
Before the step S1, the method for correcting error further include:
S0, start the service brake of first winch, second winch simultaneously, it is the motor of first winch, described
The motor of second winch is run by pre-set velocity value.
3. the method for correcting error of the hull tail portion block sliding as described in claim 1 based on two winches, which is characterized in that institute
It states step S3 to specifically include: judging whether the skidding distance absolute value of the difference exceeds preset threshold, if so, being entangled described in judgement
The correction mode of folk prescription method is manual correction mode or automatic deviation correction mode, is thened follow the steps if the manual correction mode
S4 thens follow the steps S4 ' if the automatic deviation correction mode, twists based on the setting of the first winch described in the automatic deviation correction mode
Vehicle, second winch are set as from winch, and the step S4 ' is specifically included: judge whether the skidding distance difference is positive value,
If so, increasing the motor speed of second winch, if it is not, then reducing the motor speed of second winch.
4. the method for correcting error of the hull tail portion block sliding as described in claim 1 based on two winches, which is characterized in that
In the step S4, motor speed is reduced by the first attachment speed, the first attachment speed is configurable.
5. the method for correcting error of the hull tail portion block sliding as claimed in claim 3 based on two winches, which is characterized in that
In the step S4 ', motor speed is reduced or increased by the second attachment speed, the second attachment speed is configurable.
6. a kind of deviation-rectifying system of the hull tail portion block sliding based on two winches, which is characterized in that the deviation-rectifying system packet
The first winch, the second winch, detection module, computing module, judgment module, First Speed adjustment module are included,
First winch, second winch are respectively arranged at building berth two sides and total with the support hull tail portion of corresponding side respectively
The slide plate connection of section sliding；
The detection module be used for distinguish the first winch described in real-time detection, the connected slide plate of the second winch sliding away from
From,
The skidding distance that the computing module is used to calculate between first winch, the connected slide plate of the second winch is poor；
The judgment module is the then judgement mould for judging whether the skidding distance absolute value of the difference exceeds preset threshold
Block is also used to judge whether the skidding distance difference is positive value, is that the First Speed adjustment module is called to reduce described first
Otherwise the motor speed of winch calls the First Speed adjustment module to reduce the motor speed of second winch.
7. the deviation-rectifying system of the hull tail portion block sliding as claimed in claim 6 based on two winches, which is characterized in that institute
Stating deviation-rectifying system further includes starting module, and the starting module is used to start described first simultaneously before calling the detection module
The service brake of winch, second winch, the motor of first winch, second winch motor press pre-set velocity
Value operation.
8. the deviation-rectifying system of the hull tail portion block sliding as claimed in claim 6 based on two winches, which is characterized in that institute
Stating deviation-rectifying system further includes second speed adjustment module,
The judgment module is the then judgement mould for judging whether the skidding distance absolute value of the difference exceeds preset threshold
Block is also used to judge that the deviation-rectifying system is in manual correction mode or automatic deviation correction mode, the automatic deviation correction mode
First winch is set as main winch, and second winch is set as from winch,
The judgment module is also used to judge whether the skidding distance difference is positive value when for the manual correction mode, is then
It calls the First Speed adjustment module to reduce the motor speed of first winch, otherwise calls the First Speed adjustment mould
Block reduces the motor speed of second winch；
The judgment module is also used to judge whether the skidding distance difference is positive value when for the automatic deviation correction mode, is then
It calls the second speed adjustment module to increase the motor speed of second winch, otherwise calls the second speed adjustment mould
Block reduces the motor speed of second winch.
9. the deviation-rectifying system of the hull tail portion block sliding as claimed in claim 6 based on two winches, which is characterized in that institute
Stating First Speed adjustment module is reduced the motor speed of first winch or second winch by the first attachment speed, described
First attachment speed is configurable.
10. the deviation-rectifying system of the hull tail portion block sliding as claimed in claim 8 based on two winches, which is characterized in that
The second speed adjustment module is reduced by the second attachment speed or increases the motor speed of second winch, and described second is attached
Part speed is configurable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711106718.9A CN109760781A (en) | 2017-11-10 | 2017-11-10 | The method for correcting error and system of hull tail portion block sliding based on two winches |
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| CN201711106718.9A CN109760781A (en) | 2017-11-10 | 2017-11-10 | The method for correcting error and system of hull tail portion block sliding based on two winches |
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| CN104229099A (en) * | 2014-09-15 | 2014-12-24 | 南通中远船务工程有限公司 | Offshore engineering vessel loading and launching system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101580099A (en) * | 2009-06-16 | 2009-11-18 | 长江航运科学研究所 | Large scale ships comb slideway side launching skew detection method and control system |
| CN101891119A (en) * | 2010-07-19 | 2010-11-24 | 青岛港（集团）有限公司 | Automatic correction method for tyred container door type crane |
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Effective date of registration: 20211230 Address after: 202156 room 421, floor 4, building 1, No. 955, Gaoxiang Road, Pudong New Area, Shanghai Applicant after: Shanghai Waigaoqiao Shipbuilding Offshore Engineering Project Management Co.,Ltd. Address before: 202164 No. 1, Jimo Road, Chongming District, Shanghai Applicant before: SHANGHAI SHIPYARD Co.,Ltd. |
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