CN116466562A - Marine hydraulic cable distribution machine electrical system - Google Patents
Marine hydraulic cable distribution machine electrical system Download PDFInfo
- Publication number
- CN116466562A CN116466562A CN202310360673.7A CN202310360673A CN116466562A CN 116466562 A CN116466562 A CN 116466562A CN 202310360673 A CN202310360673 A CN 202310360673A CN 116466562 A CN116466562 A CN 116466562A
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- China
- Prior art keywords
- cable
- programmable controller
- hydraulic
- tension
- oil pump
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses an electric control system of a hydraulic cable distributor for a ship, which comprises a programmable controller, an operation station, a data acquisition module, a hydraulic oil pump and a cable distributor body, wherein the operation station is connected with the programmable controller; the programmable controller comprises a CPU module, wherein the CPU module is provided with a PN interface and a DP interface; the data acquisition modules are connected in series through a bus protocol and then connected to the DP interface through an expansion communication module; the operation station is connected with the PN interface through an Ethernet protocol, and is used for displaying the acquisition information of the data acquisition module received by the programmable controller from the human-computer interface and synchronously inputting instruction information to the programmable controller; the hydraulic oil pump receives instruction information of the programmable controller and controls the hydraulic oil pump to provide constant tension or a constant allowance mode for cable transmission of the cable distributor body for transmission; the invention can realize that the cable laying machine body automatically lays cables along with the cable tension and the ship speed under the fixed tension and the fixed allowance modes respectively.
Description
Technical Field
The invention relates to the technical field of cable laying machines, in particular to an electric control system of a hydraulic cable laying machine for a ship.
Background
The cable laying machine is indispensable equipment for laying, salvaging and maintaining submarine cables of a cable laying ship, mainly adopts hydraulic drive, and adopts the working principle that a hydraulic motor drives a roller to rotate through gear reduction so as to realize cable winding and cable unwinding of cables.
In the prior art, the length of a cable arranged on a roller on a towing machine is generally one thousand meters, the number of winding layers of the cable can reach about ten layers, the cable laying machine is matched equipment of the towing machine and is arranged at a position where a stern is close to the roller, and the cable laying machine drives the cable to move leftwards and rightwards along the roller shaft in the cable winding and unwinding process of the towing machine, so that the cable can be orderly arranged on the roller.
The operation of the cable laying machine is complex and changeable in offshore working conditions, the submarine cable is high in price and free of flash loss, and the key of the cable laying operation is to control the cable laying machine to adjust the cable laying speed and the cable laying tension at any time.
At present, a cable laying machine generally depends on an operator to manually adjust the cable laying speed and the cable laying tension of the cable laying machine in cooperation with a ship dynamic positioning system, the operation process is complex, the reaction is slow, and the misoperation probability is high.
Disclosure of Invention
The invention aims to provide an electric control system of a marine hydraulic cable distributor, which is used for receiving displacement signals and pressure signals acquired by a data acquisition module through programming of a programmable controller, accurately controlling the flow and pressure of a hydraulic oil pump, and realizing that a cable distributor body automatically distributes cables along with cable tension and ship speed under a constant tension mode and a constant allowance mode respectively.
The aim of the invention can be achieved by the following technical scheme:
an electric control system of a hydraulic cable distributor for a ship comprises a programmable controller, an operation station, a data acquisition module, a hydraulic oil pump and a cable distributor body;
the programmable controller comprises a CPU module, wherein the CPU module is provided with a PN interface and a DP interface;
the data acquisition modules are connected in series through a bus protocol and then connected to the DP interface through an expansion communication module;
the operation station is connected with the PN interface through an Ethernet protocol, and is used for displaying the acquisition information of the data acquisition module received by the programmable controller from the human-computer interface and synchronously inputting instruction information to the programmable controller;
the hydraulic oil pump receives instruction information of the programmable controller and controls the hydraulic oil pump to provide constant tension or a constant allowance mode for cable transmission of the cable distributor body for transmission.
As a further scheme of the invention: the data acquisition module comprises a first acquisition unit, a second acquisition unit and a third acquisition unit;
the first acquisition unit is used for acquiring the oil pressure of the hydraulic oil pump;
the second acquisition unit is used for acquiring the displacement of the hydraulic oil pump;
the third acquisition unit is used for distributing cable pressure of the cable distributor body.
As a further scheme of the invention: the first acquisition unit is a first pressure sensor, and the first pressure sensor is arranged in a pipeline of the hydraulic oil pump.
As a further scheme of the invention: the second acquisition unit is a proportional valve, and the proportional valve is arranged at the pipeline outlet of the hydraulic oil pump.
As a further scheme of the invention: the proportional valve is connected with an adjustable power supply, and the adjustable power supply receives a control instruction sent by the programmable controller to control the opening and closing of the proportional valve.
As a further scheme of the invention: the third acquisition unit is a second pressure sensor, and the second pressure sensor is arranged at the output end of the cable laying machine body.
As a further scheme of the invention: the output end of the cable laying machine body is also provided with a rotary encoder, and the rotary linear speed of the cable laying machine body is obtained through the rotary encoder.
As a further scheme of the invention: the electric control system of the hydraulic cable distributor for the ship is characterized in that the cable distributing speed of the cable distributor body is the sum of ship speed, allowance and tension PID compensation value under a allowance fixing mode;
the balance is a preset value, and the tension PID compensation value is the sum of the product of the sea water depth and the weight of each meter of the cable and the tension measurement value.
As a further scheme of the invention: the electric control system of the marine hydraulic cable laying machine is characterized in that under a fixed tension mode, the cable laying speed of the cable laying machine body is the sum of half of the cable laying speed of the cable laying machine and a tension PID compensation value;
the tension PID compensation value is the sum of the product of the sea water depth and the weight of each meter of the cable and the tension measurement value.
As a further scheme of the invention: the tension measurement value is the acquisition value of the second pressure sensor.
The invention has the beneficial effects that: the programmable controller program of the invention is written and adopts the open Ethernet protocol to exchange data with auxiliary equipment of the cable distributor, the man-machine interface of the operation station is communicated with the programmable controller, the data of the programmable controller is read to display the whole set of running state of the system, the data written into the programmable controller is changed into the whole set of running state, the programmable controller program can automatically control the cable distributor to follow the ship speed and the tension change by receiving the ship speed and the sea cable tension signal, and the cable distribution speed is automatically adjusted.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a flow chart of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to FIG. 1, the invention relates to an electric control system of a hydraulic cable distributor for a ship, which comprises a programmable controller, an operation station, a data acquisition module, a hydraulic oil pump and a cable distributor body;
the programmable controller comprises a CPU module, wherein the CPU module is provided with a PN interface and a DP interface;
the data acquisition modules are connected in series through a bus protocol and then connected to the DP interface through an expansion communication module;
the operation station is connected with the PN interface through an Ethernet protocol and is used for displaying the acquired information of the data acquisition module received by the programmable controller from the human-computer interface.
The data acquisition module comprises a first acquisition unit, a second acquisition unit and a third acquisition unit, wherein the first acquisition unit is used for acquiring the oil pressure of the hydraulic oil pump; the second acquisition unit is used for acquiring the displacement of the hydraulic oil pump; the third acquisition unit is used for distributing cable pressure of the cable distributor body;
specific:
the first acquisition unit includes, but is not limited to, a first pressure sensor;
the second collection unit includes, but is not limited to, a proportional valve;
the third acquisition unit includes, but is not limited to, a second pressure sensor.
The programmable controller receives control instructions and data of the operation station, and the programmable controller controls the start and stop of the soft start device, so that the soft start device drives the hydraulic oil pump, and the hydraulic oil pump motor provides power for the hydraulic system;
the hydraulic oil pump is characterized in that a proportional valve is arranged at the outlet of a pipeline of the hydraulic oil pump, and the proportional valve controls the opening and closing strokes of the proportional valve through an adjustable power supply;
the programmable controller outputs 0-10V analog quantity signals to control the adjustable power supply to linearly output 0-3A current, the current linearly controls the opening and closing of the proportional valve through the proportional valve, and the opening and closing of the proportional valve controls the displacement of the hydraulic oil pump (the displacement of the hydraulic oil pump controls the rotation speed of a hydraulic motor of the cable distributor).
Further, a rotary encoder is arranged at the output end of the cable laying machine body, pulses are output to a programmable controller through the rotary encoder, the rotary linear speed of the cable laying machine body is obtained through calculation, PID calculation is carried out on the linear speed of the cable laying machine body and the ship speed, and accordingly the displacement of the hydraulic oil pump is controlled to enable the speed of the cable laying machine body to be always near the ship speed, and the speed is automatically adjusted along with the ship speed;
specific: and the cable laying speed of the cable laying machine body in the constant allowance mode is= (ship speed + allowance) +the tension PID compensation value.
In one specific embodiment, a first pressure sensor is arranged in a pipeline of the hydraulic oil pump, and the first pressure sensor is used for acquiring the pressure of the hydraulic pump station and outputting an electric signal to be transmitted to the programmable controller;
the output end of the cable laying machine body is also provided with a pressure sensor II, the tension born by the cable laying machine body during cable laying is obtained through the pressure sensor II, the tension born by the cable on the cable laying machine body is converted into the tension born by the cable on the cable laying machine body through calculation, and PID calculation is carried out on the measured cable tension and the tension set by the operation station, so that the displacement of the hydraulic oil pump is controlled, the tension on the cable is ensured to be always near the set tension, and the tension limit born by the cable is not exceeded;
wherein, the cable laying speed of the cable laying machine body in the fixed tension mode=50% + tension PID compensation value of the cable laying speed of the cable laying machine;
further, the tension PID compensation value=sea water depth+the weight of the cable per meter+the tension measurement value, which is the acquisition value of the pressure sensor two.
The core points of the invention are as follows: through the programming of the programmable controller, the displacement signal and the pressure signal acquired by the data acquisition module are received, the flow and the pressure of the hydraulic oil pump are accurately controlled, and the automatic cable laying of the cable laying machine body along with the cable tension and the ship speed can be realized under the fixed tension and the fixed allowance modes respectively.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
1. The electric control system of the hydraulic cable distributor for the ship is characterized by comprising a programmable controller, an operation station, a data acquisition module, a hydraulic oil pump and a cable distributor body;
the programmable controller comprises a CPU module, wherein the CPU module is provided with a PN interface and a DP interface;
the data acquisition modules are connected in series through a bus protocol and then connected to the DP interface through an expansion communication module;
the operation station is connected with the PN interface through an Ethernet protocol, and is used for displaying the acquisition information of the data acquisition module received by the programmable controller from the human-computer interface and synchronously inputting instruction information to the programmable controller;
the hydraulic oil pump receives instruction information of the programmable controller and controls the hydraulic oil pump to provide constant tension or a constant allowance mode for cable transmission of the cable distributor body for transmission.
2. The electrical control system of a marine hydraulic cable-laying machine of claim 1 wherein the data acquisition module comprises a first acquisition unit, a second acquisition unit, and a third acquisition unit;
the first acquisition unit is used for acquiring the oil pressure of the hydraulic oil pump;
the second acquisition unit is used for acquiring the displacement of the hydraulic oil pump;
the third acquisition unit is used for distributing cable pressure of the cable distributor body.
3. The electrical control system of a hydraulic cable distributor for a ship according to claim 2, wherein the first acquisition unit is a first pressure sensor, and the first pressure sensor is disposed in a pipeline of a hydraulic oil pump.
4. The electrical control system of a hydraulic cable distributor for a ship according to claim 2, wherein the second collecting unit is a proportional valve, and the proportional valve is disposed at a pipeline outlet of the hydraulic oil pump.
5. The electrical control system of the marine hydraulic cable distributor according to claim 4, wherein the proportional valve is connected with an adjustable power supply, and the adjustable power supply receives a control command sent by the programmable controller to control the opening and closing of the proportional valve.
6. The electrical control system of the marine hydraulic cable distributor according to claim 2, wherein the third acquisition unit is a second pressure sensor, and the second pressure sensor is arranged at the output end of the cable distributor body.
7. The electrical control system of the marine hydraulic cable laying machine according to claim 1, wherein the output end of the cable laying machine body is further provided with a rotary encoder, and the rotary encoder is used for acquiring the rotary linear speed of the cable laying machine body.
8. An electrical control system of a hydraulic cable distributor for a ship according to any one of claims 1-7, wherein in a fixed margin mode, the cable distributing speed of the cable distributor body is the sum of the ship speed, the margin and the tension PID compensation value;
the balance is a preset value, and the tension PID compensation value is the sum of the product of the sea water depth and the weight of each meter of the cable and the tension measurement value.
9. A marine hydraulic cabling machine electrical control system according to any of claims 1-7, wherein in a constant tension mode the cabling speed of the cabling machine body is the sum of half the cabling speed of the cabling machine and a tension PID compensation value;
the tension PID compensation value is the sum of the product of the sea water depth and the weight of each meter of the cable and the tension measurement value.
10. The electrical control system of a marine hydraulic cable-laying machine of claim 9 wherein the tension measurement is the acquisition of a second pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310360673.7A CN116466562A (en) | 2023-04-06 | 2023-04-06 | Marine hydraulic cable distribution machine electrical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310360673.7A CN116466562A (en) | 2023-04-06 | 2023-04-06 | Marine hydraulic cable distribution machine electrical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116466562A true CN116466562A (en) | 2023-07-21 |
Family
ID=87176446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310360673.7A Pending CN116466562A (en) | 2023-04-06 | 2023-04-06 | Marine hydraulic cable distribution machine electrical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116466562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626834A (en) * | 2023-07-25 | 2023-08-22 | 北京神州普惠科技股份有限公司 | Cable laying system and cable laying method for submarine optical cable laying |
-
2023
- 2023-04-06 CN CN202310360673.7A patent/CN116466562A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626834A (en) * | 2023-07-25 | 2023-08-22 | 北京神州普惠科技股份有限公司 | Cable laying system and cable laying method for submarine optical cable laying |
| CN116626834B (en) * | 2023-07-25 | 2023-11-10 | 北京神州普惠科技股份有限公司 | Cable laying system and cable laying method for submarine optical cable laying |
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