Flexible arresting equipment for ship navigation

Abstract

The utility model relates to ship shipping auxiliary equipment, in particular to flexible arresting equipment for ship navigation, which comprises two groups of transmission hubs, pulley blocks, pulley locks and pulley buffers, the two groups of transmission hubs are symmetrically and rotatably mounted on two sides of a river channel, each group of transmission hubs is in coaxial transmission connection with a corresponding arresting motor, and the pulley blocks are connected with the pulley locks. The blocking motor is used for damping and limiting rotation of the transmission hubs, the two pulley blocks are symmetrically and rotationally installed on the two sides of a river channel, a plurality of guiding pulleys are arranged in each pulley block, the two ends of the pulley locks are fixedly connected with the corresponding transmission hubs respectively, and the two pulley blocks are used for guiding and limiting sliding of the pulley locks. The two sets of pulley buffers are symmetrically installed on the two sides of a river channel, the buffering moving ends of the pulley buffers are in transmission connection with the pulley cable, and the ship is prevented from being damaged when the ship is effectively blocked by absorbing all kinetic energy of the sailing ship.

Description

Technical Field

[0001] The utility model relates to a ship navigation auxiliary device, in particular to a flexible arresting device for ship navigation. Background Art

[0002] At present, the construction of bridges across rivers, lakes and reservoirs has promoted the rapid development of land transportation, but it is not conducive to the increasingly busy water transportation. Bridges restrict the free navigation of ships to some extent.

[0003] A common factor causing a ship to collide with a bridge superstructure is that the ship's own height exceeds the height limit of the navigation channel of a bridge across rivers, lakes, and streams. Usually, a rigid or flexible height-limited anti-collision frame is installed to intercept the ship in advance, effectively reducing the probability of a ship colliding with a bridge superstructure and minimizing losses.

[0004] However, whether it is a rigid height limit frame or a flexible height limit frame, it is difficult to simultaneously meet the requirements of absorbing all the kinetic energy of a sailing ship to effectively arrest the ship, while ensuring that the height limit frame does not cause damage to the ship. Utility Model Content

[0005] The utility model aims to provide a flexible arresting device for ship navigation, which solves the problem that the existing rigid height limit frame or flexible height limit frame is difficult to simultaneously meet the requirements of being able to absorb all the kinetic energy of the sailing ship to effectively arrest the ship, and ensuring that the height limit frame arrest does not cause damage to the ship.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a flexible arresting device for ship navigation, comprising:

[0007] There are two sets of transmission hubs, which are symmetrically mounted on both sides of the river channel. Each set of transmission hubs is coaxially connected to a corresponding blocking motor, and the blocking motor is used to damp and limit the rotation of the transmission hubs.

[0008] There are two pulley blocks, which are symmetrically mounted on both sides of the river channel, and each pulley block is provided with multiple guide pulleys;

[0009] The pulley lock has two ends fixedly connected to the corresponding transmission hubs, and the two pulley groups are used to guide and limit the sliding of the pulley lock;

[0010] There are two groups of pulley buffers, which are symmetrically installed on both sides of the river channel, and the buffer moving ends are connected to the pulley rope transmission.

[0011] As a further solution of the present invention, the transmission hub is of conical specification.

[0012] As a further solution of the utility model, the damping size of the blocking motor is controlled by a central controller.

[0013] Compared with the existing technology, the central controller will generate corresponding excitation signals according to the type of arresting aircraft and the speed of the impact cable. The control device will control the arresting motor to accurately control the stopping distance, reduce the tension of the arresting cable and the load of the ship, and help to extend the service life of the ship. It solves the problem that the existing rigid height limit frame or flexible height limit frame is difficult to meet the requirements of both absorbing all the kinetic energy of the sailing ship to effectively arrest the ship and ensuring that the height limit frame arrest does not cause damage to the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a flexible arresting device for ship navigation provided by the utility model.

[0015] In the attached drawings: 1. driving hub; 2. arresting motor; 3. pulley block; 4. pulley buffer; 5. arresting cable. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0017] like Figure 1 As shown, in an embodiment of the utility model, a flexible arresting device for ship navigation includes two sets of transmission hubs 1, which are symmetrically mounted on both sides of the river. Each set of the transmission hubs 1 is coaxially connected to the corresponding arresting motor 2. The transmission hub 1 converts the translation of the communication ship into the rotation of the arresting motor 2, and the pulling force of the transmission hub 1 on the arresting cable 5 can be made the same everywhere. At the same time, the kinetic energy of the ship is mainly absorbed by the arresting motor 2. Since the expected arresting motion trajectory of the ship is generated in advance by the meshing speed and landing mass of the ship, The arresting cable 5 is gradually pulled out, and the angular velocity and angular acceleration of the desired rotation of the arresting motor 2 shaft are calculated. As the arresting cable 5 is gradually pulled out, the angular velocity of the rotation of the arresting motor 2 shaft is detected in real time and compared with the desired angular velocity of the arresting motor 2. The difference is input to the regulating device of the arresting motor 2, and the regulating device immediately makes appropriate changes to the output torque of the arresting motor 2 to track the desired rotation speed of the arresting motor 2 in real time until the motor speed is zero, and the ship is successfully stopped. The arresting motor is used to damp and limit the rotation of the transmission hub 1;

[0018] There are two pulley blocks 3, which are symmetrically mounted on both sides of the river channel, and each pulley block 3 is provided with multiple guide pulleys;

[0019] The pulley lock has two ends fixedly connected to the corresponding transmission hub 1, and the two pulley groups 3 are used to guide and limit the sliding of the pulley lock;

[0020] The pulley buffers 4, with two sets in number, are symmetrically installed on both sides of the river channel, and their buffer moving ends are in transmission connection with the pulley cables.

[0021] Further, in the embodiment of the present invention, the transmission hub 1 is of a conical specification. Of course, other specifications can also be selected for the actual transmission hub 1.

[0022] Still further, in the embodiment of the present invention, the damping motor 2 is controlled by the central controller for the damping magnitude.

[0023] In the present invention, the central centralized controller generates corresponding excitation signals according to the types of the blocked aircraft and the speed of the cable charging. The control device will control the damping motor 2 to accurately control the stopping distance, reduce the tension of the blocking cable 5 and the load of the ship, which helps to extend the service life of the ship; the blocking process adopts closed-loop feedback correction control, and the whole braking process is smooth and stable; at the same time, the computer is built-in with a program based on the improved Analytic Hierarchy Process (AHP). An evaluation system is established with various evaluation indicators and thresholds such as the rope diameter of the blocking rope. The evaluation indicators and thresholds correspond to the operating states of the equipment. According to whether the historical blocking data exceeds the normal range value, the wear conditions of the blocking cable 5 and other mechanisms are automatically detected, potential faults can be quickly discovered and timely processed, greatly enhancing the stability and reliability of the blocking device, and the maintenance cost of the blocking device is also greatly reduced.

Claims

1. A flexible arresting device for ship navigation, characterized in that, Including: Drive hubs, with two sets in number, symmetrically and rotatably installed on both sides of the river channel. Each set of the drive hubs is coaxially and drivably connected to the corresponding blocking motor, and the blocking motor is used to damp and limit the rotation of the drive hubs; Pulley blocks, with two sets in number, symmetrically and rotatably installed on both sides of the river channel. Each set of the pulley blocks is provided with multiple sets of guide pulleys; Pulley locks, with both ends fixedly connected to the corresponding drive hubs respectively. The two sets of the pulley blocks are used to guide and limit the sliding of the pulley locks; Pulley buffers, with two sets in number, symmetrically installed on both sides of the river channel. Their buffer moving ends are drivably connected to the pulley cables.

2. The flexible arresting device for ship navigation according to claim 1, characterized in that, The drive hubs are of conical specifications.

3. The flexible arresting device for ship navigation according to claim 1, wherein The damping magnitude of the blocking motors is controlled by a central controller.

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