Ship blocking system suitable for navigable river channel

Abstract

The utility model discloses a ship stopping system suitable for a navigable river channel. The two blocking devices are arranged on the two sides of the near shore of the channel correspondingly. Wherein the blocking device comprises an induction motor, a mechanical braking device, a conical drum wheel and a fluid turbine which are provided with the same rotating shaft; the two pulley blocks are arranged on the two sides of one blocking device respectively; the pulley block is connected with a pulley cable, and one end of the pulley cable is connected into the conical drum wheel; the other end of the pulley cable is connected with one end part of the arresting cable; the buoy device comprises a buoy internally provided with an air bag and a blocking net connected to the bottom of the buoy; the two ends of the blocking net are connected with the other ends of the blocking cables respectively.

Description

Technical Field

[0001] This utility model relates to a ship blocking system suitable for navigable waterways. Background Technology

[0002] Currently, the construction of port terminals has promoted the rapid development of water and land transportation. However, the complex traffic environment of port terminal areas makes ship maneuvering difficult, and collisions with the terminal during berthing and unberthing are frequent. Rigid or flexible anti-collision facilities are usually installed at the edge of the terminal to reduce the probability of ship collisions with the terminal structure and minimize losses. However, common arresting gear systems primarily consider interception efficiency, neglecting the damage to ships during the interception process and the recovery of the chains after the arrest. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a ship blocking system suitable for navigable waterways. Its purpose is to solve the problems that existing blocking systems cannot reduce the damage suffered by ships during the blocking process and cannot retrieve the chains in a timely manner.

[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0005] A vessel arresting system suitable for navigable waterways includes: two arresting devices respectively installed on both sides of the waterway near the shore; wherein each arresting device includes an induction motor, a mechanical braking device, a conical drum, and a fluid turbine with the same rotating shaft; one end of the rotating shaft passes through the induction motor, and the other end of the rotating shaft passes sequentially through the mechanical braking device and the conical drum and stops inside the fluid turbine; a rotor friction plate is provided on the portion of the rotating shaft located inside the mechanical braking device, and the rotor friction plate generates resistance by rubbing against the stator friction plate inside the mechanical braking device when rotating in the opposite direction; an impeller is provided on the rotating shaft located inside the fluid turbine; two pulley groups are respectively installed on both sides of one of the arresting devices; pulley cables are connected to the pulley groups, and one end of the pulley cable is connected to the conical drum; the other end of the pulley cable is connected to one end of the arresting cable; a buoy device includes a buoy with an internal airbag and an arresting net connected to the bottom of the buoy; both ends of the arresting net are respectively connected to the other ends of the arresting cable.

[0006] Preferably, the stator friction plates are fixed to both ends of the mechanical braking device, and the stator friction plates and the rotor friction plates are alternately stacked in a clamping configuration.

[0007] Preferably, a high-pressure air valve triggering device is provided on the back of the airbag, and the high-pressure air valve triggering device is connected to the arresting cable.

[0008] Preferably, the fluid turbine includes a cylinder containing fluid and an impeller, the impeller being fixed to the rotating shaft and immersed in the fluid within the cylinder.

[0009] Preferably, it also includes a power control system, which includes a capacitor bank, a water-cooled resistor, and an inverter; wherein the inverter is connected to the induction motor, the inverter is connected to the capacitor bank, and the water-cooled resistor is connected to the induction motor and the capacitor bank.

[0010] Preferably, it also includes a software control system, which is stored and installed in hardware, the software control system including a monitoring system to track the ship's sailing status.

[0011] By adopting the above technical solution, the ship arresting system of this utility model can effectively stop ships, reduce the damage to ships during the interception process through the arresting device, and can promptly recover the arresting chain. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the blocking device of this utility model. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0015] See Figure 1 As shown, the ship arresting system of this utility model applicable to navigable waterways includes components such as arresting device 1, pulley block 2, arresting cable 3, and buoy device 4.

[0016] Combination Figure 2 As shown, two arresting devices 1 are respectively set on both sides of the channel near the shore. A pulley block 2 is set at each arresting device 1. The arresting cable 3 is connected to the pulley block 2 and connected to the arresting device 1 through the pulley block 2. The arresting cable 3 is connected to the buoy device 4, so that the buoy device 4 is in the ship's mooring range.

[0017] The blocking device 1 includes an induction motor 11, a mechanical braking device 12, a conical drum 13, and a fluid turbine 14, all of which are connected as one unit via the same rotating shaft 15. These rotating components are coaxially connected, forming a highly efficient energy transfer system, avoiding problems such as mismatched components and slow response, and reducing the probability of damage.

[0018] The induction motor 11 is both a key energy-absorbing component and a crucial actuator for controlling the arresting process. The induction motor 11 is connected to the rotating shaft 15, driving its rotation. Both the direction and speed of rotation of the rotating shaft 15 can be adjusted via the induction motor 11. By adjusting the torque output of the induction motor, the ship arresting process can be precisely controlled.

[0019] The mechanical braking device 12 includes a plurality of stator friction plates and rotor friction plates 121. The stator friction plates are fixed to the inner surface of the housing of the mechanical braking device, and the rotor friction plates are fixed to the portion of the rotating shaft located inside the mechanical braking device; the stator friction plates and the rotor friction plates are stacked alternately. The rotor friction plates rotate with the rotating shaft 15. When the stator friction plates and the rotor friction plates move relative to each other, the ship speed can be reduced and kinetic energy absorbed. At the same time, in the pre-arrest preparation state, the mechanical braking device can cooperate to maintain cable tension.

[0020] The conical drum 13 is mainly responsible for releasing and winding the pulley cable 5 connected to the pulley block 2. The conical drum 13 converts the ship's linear motion into the rotational motion of the arresting device shaft system. When the ship pulls the arresting cable 3, the pulley cable 5 drives the conical drum 13, causing the arresting device shaft system to rotate, thus achieving efficient energy conversion and transfer.

[0021] The fluid turbine 14 is the main energy-absorbing component. The fluid turbine 14 includes a cylinder 141 containing fluid and an impeller 142, which is fixed to the rotating shaft 15 and immersed in the fluid within the cylinder. The fluid turbine 14 is the main energy-absorbing component of the device. When the rotating shaft 15 rotates, the impeller 142 interacts with the fluid, generating a decelerating torque, effectively reducing the rotational speed of the rotating shaft. After the arresting action is completed, the rotating shaft 15 can be adjusted to the minimum torque setting, reducing the reverse resistance of the fluid turbine 14 when the arresting cable is retracted.

[0022] Pulley system such as Figure 1 As shown, a guide pulley 21 and a buffer pulley 22 are provided, and the pulley cable 5 is wound around each pulley. The other end of the pulley cable 5 is connected to one end of the blocking cable 3.

[0023] The arresting cable 3 is connected to the buoy device 4. The buoy device 4 includes a buoy with an internal airbag 41 and an arresting net connected to the bottom of the buoy. Both ends of the arresting net are connected to the other ends of the arresting cable 3. The buoy device 4, with the arresting net, is located below the water surface and does not obstruct normal passage. When needed, the airbag 41 is released from the buoy device 4, causing the entire structure to rise and arrest vessels. A triggering device connected to the arresting cable is located on the back of the airbag; when triggered, it can be retracted into the buoy. The triggering device for the airbag is existing mature technology and will not be described further.

[0024] In addition, this system includes a power control system, mainly used for distributing, regulating, and controlling the power required for the operation of the induction motor 11. The power control system includes a capacitor bank 61, a water-cooled resistor 62, and an inverter 63, such as... Figure 1 As shown. The water-cooled resistor 62 and the capacitor bank 61 are connected in parallel and then connected to the inverter 63. The inverter 63 adjusts the voltage of the current to provide energy to the induction motor 11 inside the barrier 1.

[0025] This invention also includes a software control system 7, which is stored and installed in hardware as a central control system. The software control system includes a monitoring system 71 to track the ship's navigation status; an operating system 72 to control the operation of various components; and a maintenance system 73. This invention achieves coordinated operation of various components through a software control system.

[0026] The working principle of this vessel blocking system applicable to navigable waterways:

[0027] 1. The vessel's movement is tracked via a monitoring system. This system can be visual or electromagnetic induction. The central control system adaptively unlocks the buoys based on the vessel's trajectory, rapidly releasing the airbags. Under buoyancy, the buoys rise quickly, pulling the arresting net vertically upwards until it emerges above the water.

[0028] 2. The main control system controls the induction motor to apply accelerating torque (positive torque) to the rotating shaft, releasing a section of arresting cable. Relying on the resistance of water and buoys, the ship's speed is slowed down first, so as to reduce the initial impact force of the ship on the arresting net. The arresting net initially absorbs the ship's energy, making the contact process relatively smooth, avoiding damage to the arresting mechanism and preventing the ship from becoming unstable.

[0029] 3. When the bow contacts the arresting net and pulls the arresting cable, it causes the pulley cable to be drawn out from the conical drum, causing the arresting device's rotating shaft to rotate in the opposite direction. At this time, the mechanical brakes begin to generate frictional resistance, and the fluid turbine simultaneously generates resistance, thus slowing the ship's speed. As the rotating shaft rotates in the opposite direction, the induction motor generates a reverse torque, absorbing energy and further reducing speed.

[0030] 4. When the arresting net catches a vessel and it begins to decelerate, the induction motor applies a braking torque (reverse torque) to the rotating shaft, gradually tightening the arresting cable and absorbing energy to slow it down. The mechanical braking device generates mechanical friction resistance, which also helps absorb energy. The fluid turbine generates resistance, which also absorbs energy. The mechanical braking device and the fluid turbine can still generate resistance even if the induction motor fails, maintaining the reliability of the entire arresting system. The conical drum retracts the pulley cable. At the same time, the software control system can control the torque of the induction motor acting on the rotating shaft through the power regulation system, so that the pulley cable on the conical drum is released with a relatively constant tension, ensuring that the vessel is subjected to uniform force during the arresting process, ultimately achieving deceleration and stopping of the vessel.

[0031] 5. After the barrier is completed, the barrier cable is retracted, which triggers the device behind the airbag, releasing the high-pressure air valve and causing the airbag to deflate and retract. By controlling the rotation of the induction motor, the barrier cable is automatically retracted, and the barrier net sinks.

[0032] The embodiments described above are for illustrative purposes only and are not intended to limit the scope of this utility model. All equivalent changes and modifications made to this utility model by those skilled in the art should fall within the scope of the appended claims.

Claims

1. A vessel blocking system suitable for navigable waterways, characterized in that, include: Two arresting devices are respectively installed on both sides of the channel near the shore; wherein the arresting device includes an induction motor, a mechanical braking device, a conical drum, and a fluid turbine with the same rotating shaft; one end of the rotating shaft passes through the induction motor, and the other end of the rotating shaft passes through the mechanical braking device and the conical drum in sequence and stops inside the fluid turbine; a rotor friction plate is fixed on the part of the rotating shaft located inside the mechanical braking device, and the rotor friction plate generates resistance by rubbing against the stator friction plate inside the mechanical braking device when the rotor friction plate rotates in the opposite direction; an impeller is provided on the rotating shaft located inside the fluid turbine; Two pulley blocks are respectively arranged on both sides of one of the blocking devices; a pulley cable is connected to the pulley block, and one end of the pulley cable is connected to the conical drum; the other end of the pulley cable is connected to one end of the blocking cable. A buoy device includes a buoy with an internal air bladder and a barrier net connected to the bottom of the buoy; the two ends of the barrier net are respectively connected to the other ends of the barrier cable.

2. The vessel blocking system for navigable waterways according to claim 1, characterized in that, The stator friction plates are fixed to both ends of the mechanical braking device, and the stator friction plates and the rotor friction plates are stacked alternately in a clamping shape.

3. The vessel blocking system for navigable waterways according to claim 1 or 2, characterized in that, The airbag is equipped with a high-pressure air valve triggering device on its back, and the high-pressure air valve triggering device is connected to the arresting cable.

4. The vessel blocking system for navigable waterways according to claim 1, characterized in that, It also includes a power control system, which comprises a capacitor bank, a water-cooled resistor, and an inverter; wherein the water-cooled resistor and the capacitor bank are connected in parallel and then connected to the inverter, and the inverter adjusts the voltage of the current to provide energy to the induction motor inside the barrier.

5. The vessel blocking system for navigable waterways according to claim 1, characterized in that, The fluid turbine includes a cylinder containing fluid and an impeller, the impeller being fixed to the rotating shaft and immersed in the fluid within the cylinder.

6. The vessel blocking system for navigable waterways according to claim 1, characterized in that, It also includes a software control system, which is stored and installed in hardware, and the software control system includes a monitoring system to track the ship's sailing status.

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