CN113638920A - Mounting platform hydraulic control system for large ship - Google Patents
Mounting platform hydraulic control system for large ship Download PDFInfo
- Publication number
- CN113638920A CN113638920A CN202110972540.6A CN202110972540A CN113638920A CN 113638920 A CN113638920 A CN 113638920A CN 202110972540 A CN202110972540 A CN 202110972540A CN 113638920 A CN113638920 A CN 113638920A
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- Prior art keywords
- hydraulic
- proportional
- groups
- hydraulic cylinders
- valve
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- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000013519 translation Methods 0.000 claims abstract description 9
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 19
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A hydraulic control system of an installation platform for a large ship comprises two groups of hydraulic pumps, wherein high-pressure hydraulic oil output ports of the hydraulic pumps are connected with a port P1 of a main proportional reversing valve group through a first overflow valve and a first one-way valve, a load feedback port of the first hydraulic pump is connected with a port LS of the main proportional reversing valve group, outlets of first-connected proportional valves are respectively connected with two groups of longitudinal translation hydraulic cylinders, outlets of second-connected proportional valves are respectively connected with two groups of main jacking hydraulic cylinders on the left side, outlets of third-connected proportional valves are respectively connected with two groups of main jacking hydraulic cylinders on the right side, outlets of fourth-connected proportional valves are respectively connected with four groups of feeding hydraulic cylinders, and outlets of fifth-connected proportional valves are respectively connected with two groups of longitudinal inclination hydraulic cylinders; and the outlets of the sixth group of proportional valves are respectively connected with four groups of motors. The system can ensure the extending or retracting speed and position of the hydraulic cylinder to be flexibly controlled according to the required accuracy, thereby meeting the requirements of the installation and position adjustment of heavy-load equipment at the outer bottom of a ship and improving the installation accuracy and the working efficiency of the equipment.
Description
Technical Field
The invention belongs to the technical field of ship control systems, and particularly relates to a hydraulic control system of an installation platform for a large ship.
Background
With the rapid development of the ship industry, large ships are more and more, the used propulsion devices are larger and larger, and a dock crane cannot reach the bottom of the ship to hoist the propulsion devices, so that the installation means is lagged behind, consumes long time, and the safety cannot be guaranteed by adopting methods such as a flat trolley or a chain block.
Most of the propulsion devices of large ships exceed two hundred tons, and the auxiliary platform on the platform weighs about one hundred tons, so the load capacity of the installation platform is more than three hundred tons. Particularly, front-back and left-right movement and generation of a back tilt angle and a left-right tilt angle are required. Meanwhile, the precision of the ship body position of the propelling device is not more than 2mm, so that the requirement on hydraulic control of the platform is high. A hydraulic motor is required to drive the wheel hub, so that the platform can move back and forth; a hydraulic cylinder in the platform is transversely moved to complete the left-right adjustment of the auxiliary platform; a lifting hydraulic cylinder of the main platform finishes lifting the propelling device to approach the mounting port of the ship body; the back rake hydraulic cylinder completes the back angle change of the side platform in the platform; the lifting hydraulic cylinder is lifted on one side to finish the change of the left and right inclination angles.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide the hydraulic control system of the mounting platform for the large-scale ship, which can ensure that the extending or retracting speed and position of the hydraulic cylinder can be accurately and flexibly controlled according to the requirement, so that the mounting and position adjustment of heavy-load equipment at the outer bottom of the ship can be met, and the mounting precision and the working efficiency of the equipment can be improved.
The invention provides a hydraulic control system of an installation platform for a large ship, which comprises two groups of hydraulic pumps, wherein a high-pressure hydraulic oil output port of each hydraulic pump is connected with a port P1 of a main proportional reversing valve group through a first overflow valve and a first one-way valve; and the outlets of the sixth proportional valves of the proportional reversing valve group are respectively connected with four groups of motors.
As a further technical scheme of the invention, an outlet of a first linkage proportional valve is connected with two groups of longitudinal translation hydraulic cylinders through a flow dividing motor, an outlet of a second linkage proportional valve is connected with two groups of main jacking hydraulic cylinders on the left side through the flow dividing motor, an outlet of a third linkage proportional valve is connected with two groups of main jacking hydraulic cylinders on the right side through the flow dividing motor, an outlet of a fourth linkage proportional valve is respectively connected with four groups of feeding hydraulic cylinders through the flow dividing motor, and an outlet of a fifth linkage proportional valve is connected with two groups of trim hydraulic cylinders through the flow dividing motor.
Furthermore, a balance valve is installed at an oil port of the longitudinal translation hydraulic cylinder, a balance valve is installed at an oil port of the main jacking hydraulic cylinder, balance valves are installed at oil ports of the main jacking hydraulic cylinders on the right side and the left side, a balance valve is installed at an oil port of the feeding hydraulic cylinder, a balance valve is installed at an oil port of the longitudinal tilting hydraulic cylinder, and balance valves are installed at two oil ports of the motor.
Furthermore, the energy accumulator is connected with the main proportional reversing valve group.
The invention has the advantages that 1, the hydraulic and electric control technology is adopted, the position of the piston of the hydraulic cylinder is detected and then fed back to the proportional reversing valve, and the movement of the hydraulic cylinder is controlled by flow; 2. the hydraulic system is controlled by a balance valve to ensure that the hydraulic cylinder stops at the correct position; 3. the accumulator can keep the system pressure stable under the condition of stopping the pump; 4. the shunt motor ensures the average distribution flow of the hydraulic cylinders controlled by each pair of proportional valves, so that the movement speeds of the hydraulic cylinders are consistent.
Drawings
Fig. 1 is a hydraulic schematic of the present system.
Detailed Description
Referring to fig. 1, the present embodiment provides a hydraulic control system for a large-scale ship mounting platform, including a hydraulic pump 1 and a backup hydraulic pump 2, wherein a high-pressure hydraulic oil output port of the hydraulic pump 1 passes through a first overflow valve, the first check valve is connected with a P1 port of the main proportional reversing valve group 3, a load feedback port of the first hydraulic pump is connected with an LS port of the main proportional reversing valve group, outlets of first-link proportional valves of the main proportional reversing valve group 3 are respectively connected with two groups of longitudinal translation hydraulic cylinders 4, outlets of second-link proportional valves of the proportional reversing valve group 3 are respectively connected with two groups of main jacking hydraulic cylinders 5 on the left side, outlets of third-link proportional valves of the proportional reversing valve group 3 are respectively connected with two groups of main jacking hydraulic cylinders 6 on the right side, outlets of fourth-link proportional valves of the proportional reversing valve group 3 are respectively connected with four groups of feeding hydraulic cylinders 7, and outlets of fifth-link proportional valves of the proportional reversing valve group 3 are respectively connected with two groups of longitudinal inclination hydraulic cylinders 8; the outlets of the sixth proportional valves of the proportional reversing valve group 3 are respectively connected with four groups of motors 9.
The outlet of the first linkage proportional valve is connected with two sets of longitudinal translation hydraulic cylinders 4 through a shunt motor, the outlet of the second linkage proportional valve is connected with two sets of main jacking hydraulic cylinders 5 on the left side through the shunt motor, the outlet of the third linkage proportional valve is connected with two sets of main jacking hydraulic cylinders 6 on the right side through the shunt motor, the outlet of the fourth linkage proportional valve is connected with four sets of feeding hydraulic cylinders 7 through the shunt motor, and the outlet of the fifth linkage proportional valve is connected with two sets of trim hydraulic cylinders 8 through the shunt motor.
The oil port of the longitudinal translation hydraulic cylinder 4 is provided with a balance valve, the oil port of the main jacking hydraulic cylinder 6 is provided with a balance valve, the oil ports of the right and left main jacking hydraulic cylinders are provided with balance valves, the oil port of the feeding hydraulic cylinder 7 is provided with a balance valve, the oil port of the longitudinal tilting hydraulic cylinder 8 is provided with a balance valve, so that the short-time pressure maintaining and buffering of the hydraulic cylinders are completed, and the two oil ports of the motor 9 are provided with balance valves, so that the buffering of the motor 9 is completed.
The energy accumulator is connected with the main proportional reversing valve group.
The spare hydraulic pump 2 is a constant pressure variable pump.
Each hydraulic cylinder or motor controlled in a combined mode should work independently, and the hydraulic cylinders or motors cannot work simultaneously when not necessary; because the hydraulic cylinders are provided with the position sensors, the working position of the hydraulic cylinders and the running speed of the hydraulic cylinders under corresponding flow can be timely and accurately obtained, and meanwhile, the proportional reversing valves can well control the flow input into each group of hydraulic cylinders, so that the whole platform can be ensured to stably move equipment such as a propeller and the like to be installed to an accurate position in a short time. The energy accumulator is arranged in the whole hydraulic system, so that the phenomenon that the oil liquid in the lower cavity slides down due to leakage during the working of the hydraulic cylinder can be well prevented, and the danger of the whole platform under the load action is avoided.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is intended to be protected by the appended claims. The scope of the invention is defined by the claims and their equivalents.
Claims (5)
1. A hydraulic control system of a mounting platform for a large ship is characterized by comprising a main hydraulic pump and a standby hydraulic pump, a high-pressure hydraulic oil output port of the hydraulic pump is connected with a P1 port of the main proportional reversing valve group through a first overflow valve and a first check valve, a load feedback port of the first hydraulic pump is connected with an LS port of the main proportional reversing valve group, the outlet of the first proportional valve of the main proportional reversing valve group is respectively connected with two groups of longitudinal translation hydraulic cylinders, the outlet of the second proportional valve of the proportional reversing valve group is respectively connected with two groups of main jacking hydraulic cylinders on the left side, the outlet of the third proportional valve of the proportional reversing valve group is respectively connected with the two groups of main jacking hydraulic cylinders on the right side, the outlets of the fourth-group proportional valves of the proportional reversing valve group are respectively connected with four groups of feeding hydraulic cylinders, and the outlets of the fifth-group proportional valves of the proportional reversing valve group are respectively connected with two groups of trim hydraulic cylinders; and the outlets of the sixth proportional valves of the proportional reversing valve group are respectively connected with four groups of motors.
2. The hydraulic control system of a large-scale marine installation platform, according to claim 1, characterized in that the outlet of the first proportional valve is connected with two sets of longitudinal translation hydraulic cylinders through a shunt motor, the outlet of the second proportional valve is connected with two sets of main jacking hydraulic cylinders on the left side through a shunt motor, the outlet of the third proportional valve is connected with two sets of main jacking hydraulic cylinders on the right side through a shunt motor, the outlet of the fourth proportional valve is connected with four sets of feeding hydraulic cylinders through a shunt motor, and the outlet of the fifth proportional valve is connected with two sets of pitch hydraulic cylinders through a shunt motor.
3. The hydraulic control system of a mounting platform for a large ship according to claim 1, wherein a balance valve is installed at an oil port of the longitudinal translation hydraulic cylinder, a balance valve is installed at an oil port of the main jacking hydraulic cylinder, balance valves are installed at oil ports of the main jacking hydraulic cylinders on the right side and the left side, a balance valve is installed at an oil port of the feeding hydraulic cylinder, a balance valve is installed at an oil port of the trim hydraulic cylinder, and balance valves are installed at two oil ports of the motor.
4. The hydraulic control system of a large marine installation platform of claim 1, further comprising an accumulator connected to the main proportional reversing valve bank.
5. The mounting platform hydraulic control system for large vessels according to claim 1, wherein the hydraulic pump to be used is a constant pressure variable pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110972540.6A CN113638920A (en) | 2021-08-24 | 2021-08-24 | Mounting platform hydraulic control system for large ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110972540.6A CN113638920A (en) | 2021-08-24 | 2021-08-24 | Mounting platform hydraulic control system for large ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113638920A true CN113638920A (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110972540.6A Pending CN113638920A (en) | 2021-08-24 | 2021-08-24 | Mounting platform hydraulic control system for large ship |
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| Country | Link |
|---|---|
| CN (1) | CN113638920A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188276A (en) * | 2003-12-01 | 2005-07-14 | Komatsu Ltd | Hydraulic control device of construction machine |
| CN101054154A (en) * | 2007-05-31 | 2007-10-17 | 上海交通大学 | Synchronous control method for stern hydraulic workbench lifting |
| CN204127002U (en) * | 2014-09-25 | 2015-01-28 | 浙江海洋学院 | A kind of boat segmental always organizes the hydraulic control system of positioning device |
| CN106499682A (en) * | 2016-12-27 | 2017-03-15 | 中交第二航务工程局有限公司 | A kind of hydraulic system for pile driving barge |
| JP2017053414A (en) * | 2015-09-08 | 2017-03-16 | 株式会社クボタ | Hydraulic system of work machine |
| JP2017219107A (en) * | 2016-06-07 | 2017-12-14 | 株式会社クボタ | Hydraulic system of work machine |
| CN107605841A (en) * | 2017-07-28 | 2018-01-19 | 武汉船用机械有限责任公司 | A kind of hydraulic motor control system |
| CN216009049U (en) * | 2021-08-24 | 2022-03-11 | 南京中船绿洲机器有限公司 | Mounting platform hydraulic control system for large ship |
-
2021
- 2021-08-24 CN CN202110972540.6A patent/CN113638920A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188276A (en) * | 2003-12-01 | 2005-07-14 | Komatsu Ltd | Hydraulic control device of construction machine |
| CN101054154A (en) * | 2007-05-31 | 2007-10-17 | 上海交通大学 | Synchronous control method for stern hydraulic workbench lifting |
| CN204127002U (en) * | 2014-09-25 | 2015-01-28 | 浙江海洋学院 | A kind of boat segmental always organizes the hydraulic control system of positioning device |
| JP2017053414A (en) * | 2015-09-08 | 2017-03-16 | 株式会社クボタ | Hydraulic system of work machine |
| JP2017219107A (en) * | 2016-06-07 | 2017-12-14 | 株式会社クボタ | Hydraulic system of work machine |
| CN106499682A (en) * | 2016-12-27 | 2017-03-15 | 中交第二航务工程局有限公司 | A kind of hydraulic system for pile driving barge |
| CN107605841A (en) * | 2017-07-28 | 2018-01-19 | 武汉船用机械有限责任公司 | A kind of hydraulic motor control system |
| CN216009049U (en) * | 2021-08-24 | 2022-03-11 | 南京中船绿洲机器有限公司 | Mounting platform hydraulic control system for large ship |
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