CN218581926U - Emergency protection device and hydraulic system with same - Google Patents
Emergency protection device and hydraulic system with same Download PDFInfo
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- CN218581926U CN218581926U CN202222651075.9U CN202222651075U CN218581926U CN 218581926 U CN218581926 U CN 218581926U CN 202222651075 U CN202222651075 U CN 202222651075U CN 218581926 U CN218581926 U CN 218581926U
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Abstract
The utility model discloses an emergency protection device and a hydraulic system with the same, wherein the emergency protection device comprises an energy accumulator (15) storing hydraulic oil, a one-way solenoid valve (9), a plurality of connecting pipelines and a special hydraulic motor; one end of the one-way electromagnetic valve (9) is connected with the energy accumulator (15) through a pipeline; the energy accumulator (15) is connected with the special hydraulic motor circuit. The oil supply and energy storage of the energy accumulator (15) are completed in advance before the burying machine is launched by a special hydraulic motor on the burying machine through a special pipeline. The hydraulic oil stored by the energy accumulator (15) can be automatically supplemented into the hydraulic system under the condition that the hydraulic system fails, and the towing and hanging arm (2) can be slowly dragged by the towing and hanging steel cable to force the hydraulic system to slowly convert the towing and hanging arm (2) from a towing position to a hanging position, so that the burying machine can be safely hoisted and recovered.
Description
Technical Field
The utility model relates to a submarine cable field especially relates to an emergency protection device and have its hydraulic system.
Background
Submarine cables are an important transmission means for power and communication between coastal islands and cities or between cities on both sides of inland rivers. With the development of economic society, underwater cables are more and more widely applied. The underwater laying of submarine cables is usually completed by a professional cable laying ship, and the underwater burying machine is used as a main submarine cable laying tool of the cable laying ship, and is particularly responsible for ditching and digging grooves in the seabed and synchronously laying the submarine cables in the grooves to complete the burying of the submarine cables. Due to the complex submarine topography and the numerous wastes such as various fishing nets, ropes, anchorage devices, sunken ships and the like, serious potential safety hazards are brought to the underwater safety operation of the submarine cable burying machine, various sudden failures of the submarine cable burying machine are often caused, and the construction is forced to be interrupted.
However, when the hydraulic system of the burying machine breaks down in the submarine cable laying process, the hydraulic system of the burying machine cannot work normally, and finally the trailing arm of the burying machine cannot return to a hanging position state from the trailing position, so that normal lifting conditions cannot be met, the burying machine has to be forcibly lifted and recovered in a destructive manner, the structural safety of the burying machine is seriously affected slightly, the service life is shortened, the trailing structure of the burying machine is seriously deformed seriously due to the serious condition, and the construction has to be interrupted and the construction has to be returned to a factory for overhaul.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an emergent protection device and have its hydraulic system.
The emergency protection device provided by the utility model comprises an energy accumulator (15) storing hydraulic oil, a one-way solenoid valve (9), a plurality of connecting pipelines and a special hydraulic motor; one end of the one-way electromagnetic valve (9) is connected with the energy accumulator (15) through a pipeline; the energy accumulator (15) is connected with the special hydraulic motor circuit.
The hydraulic system provided by the utility model comprises an oil storage device (16), a valve group, a hydraulic device, a power supply device, a dragging and hanging device and the emergency protection device; the oil storage device (16) and the hydraulic device are connected through the connecting pipelines to form two passages; the valve group is arranged between two passages of the oil storage device (16) and the hydraulic device; the emergency protection device is connected with the hydraulic device through the valve group; the one-way electromagnetic valve (9), the oil storage device (16) and the valve group are all in circuit connection with the power supply device; the towing device is movably connected with the hydraulic device. The hydraulic device comprises a cylinder sleeve provided with a first oil nozzle (6), a cylinder body (8) provided with a second oil nozzle (7) and a hydraulic oil rod (5); the oil storage device (16) comprises an oil storage device (16) provided with a first oil port and a second oil port and an oil pump; the first oil nozzle (6) and the first oil port pipeline are connected to form a first passage of the two passages; the second oil nozzle (7) is connected with the second oil port pipeline to form a second passage of the two passages; one end of the hydraulic oil rod (5) is fixed with the cylinder sleeve; the oil pump is connected with the power supply device through a circuit. The valve block comprises a three-way valve (12); the three-way valve (12) is arranged between the first passages; the emergency protection device, the first oil nozzle (6) and the first oil port are communicated with each other through the three-way valve (12). Said valve group further comprising a first two-way solenoid valve (10); the first bidirectional electromagnetic valve (10) is arranged between the three-way valve (12) and a pipeline of the oil storage device (16); the first bidirectional electromagnetic valve (10) is connected with the power supply device through a circuit. The valve group also comprises a pressure sensor (13) and a second two-way solenoid valve (14); the pressure sensor (13) and the second bidirectional solenoid valve (14) are arranged between the second passages in series; the pressure sensor (13) is arranged between the second bidirectional electromagnetic valve (14) and the second oil nozzle (7); the pressure sensor (13) is in circuit connection with the second bidirectional solenoid valve (14); the pressure sensor (13) and the second bidirectional electromagnetic valve (14) are both connected with the power supply device through circuits. The towing device comprises a supporting base (4) and a towing arm (2); one end of the supporting base (4) is movably connected with the bottom of the cylinder body (8), and the other end of the supporting base is movably connected with the towing arm (2). The towing device also comprises an angle sensor (3); the angle sensor (3) is fixed at one end of the towing arm (2) close to the support base (4); the angle sensor (3) is connected with the power supply device through a circuit.
The emergency protection device and the hydraulic system with the same can effectively prevent the unfavorable condition that the trailing arm (2) of the embedding machine cannot be erected due to the fault of the hydraulic system, and can greatly improve the safety of the embedding machine in dealing with the underwater emergency fault; furthermore, the utility model provides an emergency protection device and have its hydraulic system simple structure, convenient operation and reliable and stable.
Drawings
Fig. 1 is a schematic structural diagram of an emergency protection device and a hydraulic system with the same.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the emergency protection device according to this embodiment includes an energy accumulator 15 storing hydraulic oil, a one-way solenoid valve 9, a plurality of connecting pipes, and a dedicated hydraulic motor; one end of the one-way electromagnetic valve 9 is connected with the energy accumulator 15 through a pipeline; the accumulator 15 is connected with the special hydraulic motor circuit.
It will be understood by those skilled in the art that the emergency protection device of the present embodiment is configured such that the oil supply and the energy storage of the energy storage device 15 are performed in advance by a dedicated hydraulic motor on the burying machine via a dedicated pipeline before the burying machine is launched. The hydraulic oil stored by the energy accumulator 15 can be automatically supplemented into the hydraulic system under the condition that the hydraulic system fails, the towing and hanging arm 2 can be slowly dragged by the towing and hanging steel cable to force the hydraulic system to slowly convert the towing and hanging arm 2 from the towing position to the hanging position, and further the burying machine can be safely hoisted and recovered, and in addition, the special hydraulic motor can be powered by a cable laying ship. Those skilled in the art can understand that the one-way solenoid valve 9 is in a closed state when being electrified with the hydraulic system, and is in an open state when being powered off or in fault, so that the emergency protection device provided by the embodiment can be ensured to be automatically opened when being powered off or in fault abnormally, and can work normally.
Example 2
As shown in fig. 1, the hydraulic system of the present embodiment includes an oil storage device (16), a valve set, a hydraulic device, a power supply device, a towing device, and the emergency protection device described in embodiment 1; the oil storage device 16 and the hydraulic device are connected through the connecting pipelines to form two passages; the valve group is arranged between the oil storage device 16 and two passages of the hydraulic device; the emergency protection device is connected with the hydraulic device through a pipeline through the valve group; the one-way solenoid valve 9, the oil storage device (16) and the valve group are all in circuit connection with the power supply device; the towing device is movably connected with the hydraulic device.
The skilled person can understand that when the power supply device supplies power normally, the hydraulic system works normally, when the power supply device causes a fault of the hydraulic system, the towing arm 2 cannot be recovered normally through the towing device, and the one-way solenoid valve 9 loses power, then the hydraulic oil in the energy accumulator 15 is pressed into the hydraulic device through the special hydraulic motor to maintain the work of the hydraulic system, and the towing arm 2 is slowly converted from the towing position to the hanging position through the towing device, so that the burying machine can be safely hoisted and recovered. Those skilled in the art will appreciate that the power supply device is electrically connected to the specialized cable laying vessel and will not be described in detail herein.
Further, the hydraulic device comprises a cylinder sleeve provided with a first oil nozzle 6, a cylinder body 8 provided with a second oil nozzle 7 and a hydraulic oil rod 5; the oil storage device (16) comprises an oil storage device (16) provided with a first oil port and a second oil port and an oil pump; the first oil nozzle 6 and the first oil port pipeline are connected to form a first passage of the two passages; the second oil nozzle 7 is connected with the second oil port pipeline to form a second passage in the two passages; one end of the hydraulic oil rod 5 is fixed with the cylinder sleeve; the oil pump is connected with the power supply device through a circuit. As can be understood by those skilled in the art, when the oil pump presses the hydraulic oil in the oil storage device 16 into the rigid sleeve through the first oil port, the cylinder sleeve is pressed to slide into the cylinder block 8, the hydraulic oil in the cylinder block 8 flows back into the oil storage device 16 through the connecting pipeline, and when the oil pump presses the hydraulic oil in the oil storage device 16 into the cylinder block 8 through the second oil port, the hydraulic oil in the cylinder block 8 forces the cylinder sleeve to slide in a direction away from the bottom of the cylinder block 8; therefore, the towing and hanging arm 2 can be switched between two states of the towing position and the hanging position through the hydraulic oil rod 5 fixed with the cylinder sleeve, thereby completing the operation of the burying machine.
Further, the valve block includes a three-way valve 12; the three-way valve 12 is arranged between the first passages; the emergency protection device, the first oil nipple 6 and the first oil port are communicated with each other through the three-way valve 12. As can be understood by those skilled in the art, after the hydraulic system is in power failure, the hydraulic system stops working, and after the emergency protection device is intervened, hydraulic oil in the emergency protection device is pressed into the cylinder sleeve through the three-way valve 12 to continuously maintain the working of the hydraulic device, so that the burying machine can be normally switched to a hanging position, and the burying machine is ensured to be normally recovered.
Further, the valve group also comprises a first two-way solenoid valve 10; the first two-way solenoid valve 10 is arranged between the three-way valve 12 and the pipeline of the oil storage device 16; the first bidirectional electromagnetic valve 10 is electrically connected with the power supply device. It can be understood by those skilled in the art that the first bidirectional electromagnetic valve 10 is opened when the power is turned on, and closed when the power is turned off, and after the hydraulic system is turned off and stops working when the power is turned off, the first bidirectional electromagnetic valve 10 is closed, so that hydraulic oil in the emergency protection equipment can be prevented from entering the oil storage device 16, and the working efficiency of the emergency protection equipment can be improved.
Further, the valve group also comprises a pressure sensor 13 and a second two-way solenoid valve 14; the pressure sensor 13 and the second two-way solenoid valve 14 are arranged in series between the second passages; the pressure sensor 13 is arranged between the second two-way solenoid valve 14 and the second oil nozzle 7; the pressure sensor 13 is electrically connected with the second bidirectional electromagnetic valve 14; the pressure sensor 13 and the second two-way solenoid valve 14 are both connected with the power supply device through circuits. As can be understood by those skilled in the art, the second bidirectional solenoid valve 14 is opened when powered on and closed when powered off, and simultaneously can automatically set the threshold value of the pressure sensor 13, and when the set threshold value is reached, the second bidirectional solenoid valve 14 can be opened automatically to release pressure, and then closed automatically until the pressure is lower than the threshold value, so as to prevent the hydraulic system from being damaged due to the closing of the second bidirectional solenoid valve 14 when powered off.
Further, the towing device comprises a supporting base 4 and a towing arm 2; one end of the supporting base 4 is movably connected with the bottom of the cylinder body 8, and the other end is movably connected with the trailing arm 2.
Further, the towing device also comprises an angle sensor 3; the angle sensor 3 is fixed at one end of the trailing arm 2 close to the support base 4; the angle sensor 3 is connected with the power supply device through a circuit. Those skilled in the art can understand that, by installing an angle sensor 3 on the trailing arm 2, the angle value between the trailing arm 2 and the horizontal plane can be measured and fed back in real time, and the position status of the trailing arm 2 can be specified. The top end of the trailing boom 2 is connected to a cable laying vessel by a hoist cable rope 1, as will be appreciated by those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An emergency protection device is characterized by comprising an energy accumulator (15) for storing hydraulic oil, a one-way electromagnetic valve (9), a plurality of connecting pipelines and a special hydraulic motor; one end of the one-way electromagnetic valve (9) is connected with the energy accumulator (15) through a pipeline; the energy accumulator (15) is connected with the special hydraulic motor circuit.
2. Hydraulic system, characterized in that it comprises an oil storage device (16), a valve group, hydraulic devices, power supply devices, towing devices and an emergency protection device according to claim 1; the oil storage device (16) and the hydraulic device are connected through the connecting pipelines to form two passages; the valve group is arranged between two passages of the oil storage device (16) and the hydraulic device; the emergency protection device is connected with the hydraulic device through a pipeline through the valve group; the one-way electromagnetic valve (9), the oil storage device (16) and the valve bank are all in circuit connection with the power supply device; the towing device is movably connected with the hydraulic device.
3. A hydraulic system as claimed in claim 2, characterized in that the hydraulic means comprise a cylinder liner provided with a first oil nipple (6), a cylinder body (8) provided with a second oil nipple (7) and a hydraulic oil rod (5); the oil storage device (16) comprises an oil storage device (16) provided with a first oil port and a second oil port and an oil pump; the first oil nozzle (6) is connected with the first oil port pipeline to form a first passage in the two passages; the second oil nozzle (7) is connected with the second oil port pipeline to form a second passage of the two passages; one end of the hydraulic oil rod (5) is fixed with the cylinder sleeve; the oil pump is connected with the power supply device through a circuit.
4. A hydraulic system as claimed in claim 3, characterized in that said valve group comprises a three-way valve (12); the three-way valve (12) is arranged between the first passages; the emergency protection device, the first oil nozzle (6) and the first oil port are communicated with each other through the three-way valve (12).
5. A hydraulic system as claimed in claim 4, characterized in that said valve group further comprises a first two-way solenoid valve (10); the first bidirectional electromagnetic valve (10) is arranged between the three-way valve (12) and a pipeline of the oil storage device (16); the first bidirectional electromagnetic valve (10) is in circuit connection with the power supply device.
6. The hydraulic system as claimed in claim 5, characterized in that said valve group further comprises a pressure sensor (13) and a second two-way solenoid valve (14); the pressure sensor (13) and the second bidirectional solenoid valve (14) are arranged between the second passages in series; the pressure sensor (13) is arranged between the second bidirectional electromagnetic valve (14) and the second oil nozzle (7); the pressure sensor (13) is in circuit connection with the second bidirectional solenoid valve (14); the pressure sensor (13) and the second bidirectional electromagnetic valve (14) are both in circuit connection with the power supply device.
7. A hydraulic system as claimed in claim 6, characterized in that the trailing arm arrangement comprises a support base (4) and a trailing arm (2); one end of the supporting base (4) is movably connected with the bottom of the cylinder body (8), and the other end of the supporting base is movably connected with the towing arm (2).
8. A hydraulic system as claimed in claim 7, characterized in that the towing attachment further comprises an angle sensor (3); the angle sensor (3) is fixed at one end of the towing arm (2) close to the support base (4); the angle sensor (3) is connected with the power supply device through a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222651075.9U CN218581926U (en) | 2022-10-09 | 2022-10-09 | Emergency protection device and hydraulic system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222651075.9U CN218581926U (en) | 2022-10-09 | 2022-10-09 | Emergency protection device and hydraulic system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218581926U true CN218581926U (en) | 2023-03-07 |
Family
ID=85367915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222651075.9U Active CN218581926U (en) | 2022-10-09 | 2022-10-09 | Emergency protection device and hydraulic system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218581926U (en) |
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2022
- 2022-10-09 CN CN202222651075.9U patent/CN218581926U/en active Active
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