Automatic docking device for dock cable transmission

Abstract

The present invention discloses an automatic docking device for cable transmission at a dock, comprising a stroke amplification mechanism, a base frame, a hinge assembly, a cable transmission frame and a hydraulic station. The stroke amplification mechanism comprises a lifting and folding bracket, a hydraulic cylinder, a cylinder support, a telescopic inner sleeve and a telescopic outer sleeve. The hydraulic cylinder is obliquely connected between the base frame and the lifting and folding bracket. The cylinder is respectively connected to the base frame and the lifting and folding bracket through the cylinder support. The telescopic inner sleeve and the telescopic outer sleeve are wrapped on the outer surface of the cylinder, and the telescopic inner sleeve and the telescopic outer sleeve are connected together. Through the above, the cable transmission of the present invention is automatically docked with the ship connection, and when the hull rises and falls with the tide, it can automatically follow the hull to rise and fall, ensuring that the cable is aligned with the cable transmission port of the hull at the dock, avoiding the bending of the submarine optical cable affecting the cable quality, improving the cable transmission speed, saving costs, no longer occupying the dock operation area extra, and not affecting the normal operation of the gantry crane.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine optical cable equipment, and in particular to an automatic docking device for dock cable transmission, and an automatic docking device for a connection point with a ship during cable transmission. Background Art

[0002] At present, long-length submarine optical cables are shipped by special submarine cable ships. The ships have large hulls and deep draft, so they all use the Yangtze River wharf as their berthing point. Submarine cable production plants are generally built on the banks of the Yangtze River to facilitate product shipment. During shipment, tractors directly transport the cables into the cabin.

[0003] Due to the high tide and low tide of the Yangtze River every day, the hull will fluctuate up and down with the ebb and flow of the tide, with a height difference of more than 3 meters. However, the cable rack on the dock is fixed. When the hull fluctuates up and down, the cable is bent at the interface, which may cause product damage in severe cases. Since submarine optical cables are laid on the seabed for use, the operating environment itself is harsh. If product defects are caused by improper cable transmission and cannot be discovered in time, the losses caused will be immeasurable.

[0004] At present, there is no relevant device in China. In the existing technology, the cable is usually transported by a plank road, which is 9 meters high and spans across the dock. The cable delivery port of the plank road extends 10 meters from the dock. The influence of the tide of the ship can be ignored, but the disadvantage is that the dock is divided into two by the plank road, and the gantry crane cannot be used back and forth, affecting the normal operation of the dock. Later, it was changed to lay the cable delivery route along the riverside of the dock, but the hull fluctuates up and down during cable delivery due to the tide of the river, causing the cable to be abnormally bent at the interface between the cable guide port and the ship, affecting the quality and cable guiding speed. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide an automatic docking device for cable transmission at the dock, which automatically docks with the ship connection during cable transmission, thereby solving the problem of cable bending damage caused by the fixed cable transmission port. When the hull rises and falls with the tide, it can automatically follow the rise and fall of the hull to ensure that the cable is aligned with the cable transmission port of the hull at the dock, avoiding the bending of the submarine cable that affects the quality of the cable, and achieving smooth rise and fall with good safety performance, increasing the cable transmission speed, saving costs, no longer occupying the dock operating area, and not affecting the normal operation of the gantry crane.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: providing an automatic docking device for cable transportation at a dock, comprising a stroke amplification mechanism, a base frame, a hinge assembly, a cable transportation rack and a hydraulic station, wherein the stroke amplification mechanism, the hinge assembly and the hydraulic station are all arranged on the base frame, and the cable transportation rack is movably arranged at the upper end of the base frame through the stroke amplification mechanism and the hinge assembly, wherein the stroke amplification mechanism comprises a lifting and folding bracket, a hydraulic cylinder, a cylinder support, a telescopic inner sleeve, a telescopic outer sleeve and a cylinder, the lifting and folding bracket is arranged between the base frame and the cable transportation rack, the hydraulic cylinder is obliquely connected between the base frame and the lifting and folding bracket, the cylinder is respectively connected to the base frame and the lifting and folding bracket through the cylinder support, the telescopic inner sleeve and the telescopic outer sleeve are wrapped on the outer surface of the cylinder, and the telescopic inner sleeve and the telescopic outer sleeve are connected together; the stroke amplification mechanism adopts a special-shaped parallelogram structure;

[0007] The automatic docking device for dock cable transmission also includes a water level gauge and a PLC. The water level gauge is connected to the hydraulic station through the PLC. The water level gauge includes a float water level gauge and a radar water level gauge. When the tide is high, an analog value is obtained based on the comparison value of the float water level gauge and the radar water level gauge, and then compared with the original initial position value. The obtained value is transmitted to the hydraulic station to operate the lifting device. When the tide is low, the comparison value is transmitted to the hydraulic station to operate the lowering device.

[0008] In a preferred embodiment of the present invention, the hydraulic station is located between the stroke amplification mechanism and the hinge assembly.

[0009] In a preferred embodiment of the present invention, the telescopic inner sleeve and the telescopic outer sleeve are fixedly connected by a shear pin.

[0010] In a preferred embodiment of the present invention, the cable transport rack adopts a double-row structure.

[0011] In a preferred embodiment of the present invention, two elbow routing racks are further provided at the front end of the cable transmission rack.

[0012] In a preferred embodiment of the present invention, the upper portion of the lifting and folding bracket is connected to the bottom of the elbow routing frame.

[0013] The beneficial effects of the present invention are as follows: the automatic docking device for cable transmission at the dock of the present invention automatically docks with the connection part of the ship during cable transmission, thereby solving the problem of bending damage to the cable caused by the fixed cable transmission port. When the hull rises and falls with the tide, it can automatically follow the rise and fall of the hull to ensure that the cable is aligned with the cable transmission port of the hull at the dock, thereby avoiding the bending of the submarine cable that affects the quality of the cable, achieving smooth rise and fall, good safety performance, increasing the cable transmission speed, saving costs, no longer occupying the dock operating area extra, and not affecting the normal operation of the gantry crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of the automatic docking device for cable transmission at a dock of the present invention;

[0016] Figure 2 yes Figure 1 Side view of

[0017] Figure 3 yes Figure 1 Circuit control diagram of

[0018] Marked in the accompanying drawings are: 1. stroke amplification mechanism, 2. base frame, 3. hinge assembly, 4. cable transport rack, 5. hydraulic station, 6. elbow routing rack, 11. lifting and folding bracket, 12. hydraulic cylinder, 13. cylinder support, 14. telescopic inner sleeve, 15. telescopic outer sleeve, 16. shear pin, 17. cylinder pin, 111. upper support hinge, 112. lower support hinge, 113. first outer support rod, 114. second outer support rod, 115. first inner support rod, 116. second inner support rod, 117. support pin. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1 and 2 As shown, the embodiment of the present invention includes:

[0021] A dock cable automatic docking device comprises a stroke amplification mechanism 1, a base frame 2, a hinge assembly 3, a cable transport frame 4 and a hydraulic station 5, wherein the stroke amplification mechanism 1, the hinge assembly 3 and the hydraulic station 5 are all arranged on the base frame 2, and the cable transport frame 4 is movably arranged at the upper end of the base frame through the stroke amplification mechanism 1 and the hinge assembly 3, wherein the stroke amplification mechanism 1 comprises a lifting and folding bracket 11, a hydraulic cylinder 12, a cylinder support 13, a telescopic inner sleeve 14, a telescopic outer sleeve 15 and a cylinder (not shown in the figure), the lifting and folding bracket 11 is arranged between the base frame 2 and the cable transport frame 4, the hydraulic cylinder 12 is obliquely connected between the base frame 2 and the lifting and folding bracket 11, the cylinder is respectively connected to the base frame 2 and the lifting and folding bracket 11 through the cylinder support 13, the telescopic inner sleeve 14 and the telescopic outer sleeve 15 are wrapped around the outer surface of the cylinder, and the telescopic inner sleeve 14 and the telescopic outer sleeve 15 are connected together.

[0022] In the above, the hydraulic station 5 is located between the stroke amplification mechanism 1 and the hinge assembly 3. The stroke amplification mechanism 1 adopts a special-shaped parallelogram structure.

[0023] Furthermore, the cable transport rack 4 adopts a double-row structure. Two elbow routing racks 6 are also arranged at the front end of the cable transport rack 4, and the upper part of the lifting and folding bracket 11 is connected to the bottom of the elbow routing rack 6.

[0024] In this embodiment, the lifting and folding bracket 11 includes an upper support hinge 111, a lower support hinge 112, a first outer support rod 113, a second outer support rod 114, a first inner support rod 115, a second inner support rod 116 and a support pin 117, one end of the first outer support rod 113 is movably set at the upper part of the base frame 2 through the lower support hinge 112, one end of the first inner support rod 115 is movably connected to the middle position of the inner side edge of the first outer support rod 113 through the support pin 117, and the other end is movably connected to one end of the inner side edge of the second outer support rod 114 through the support pin 117, the other end of the second outer support rod 114 is movably connected to the middle position of the outer side edge of the second inner support rod 116 through the support pin 117, one end of the second inner support rod 116 is movably set at the bottom of the elbow routing frame 6 through the upper support hinge 112, and the other end is movably connected to the other end of the first outer support rod 113 through the support pin 117. The hydraulic cylinder 12 is connected to the second inner support rod 116 via the cylinder pin 17. The above structure enables the lifting and folding bracket 11 to achieve the functions of lifting and folding, and facilitates the adjustment of the use height of the cable transport rack 4.

[0025] The telescopic inner sleeve 14 and the telescopic outer sleeve 15 are fixedly connected by a shear pin 16. Next to the first outer support rod 113 of the stroke amplification mechanism 1, the telescopic inner sleeve 14 and the telescopic outer sleeve 15 are designed to be locked in position. When the device is raised to a specified position, the hydraulic system can be disconnected to ensure that the position is fixed.

[0026] The automatic docking device for dock cable transmission of the present invention further comprises a water level gauge and a PLC, wherein the water level gauge is connected to the hydraulic station through the PLC. The water level gauge comprises a float water level gauge and a radar water level gauge.

[0027] At high tide, an analog value is calculated based on the comparison values ​​of the two water level gauges and then compared with the original initial position value. The obtained value is transmitted to the hydraulic station 5 to operate the lifting device. At low tide, the comparison value is similarly transmitted to the hydraulic station 5 to operate the lowering device. In this embodiment, one water level gauge is installed on the water surface and the other is installed on the shore of the dock.

[0028] In order to accurately monitor the water level, float water level gauges and radar water level gauges are generally used. Radar water level gauges are a type of level detection instrument that uses microwave technology. They are specially used to monitor natural water bodies or assist in water treatment operations. They can accurately monitor water level information. The product absorbs the 24GHz planar microstrip radar technology of German InnosenT Company, can work stably around the clock, and the measurement results are accurate and reliable. It has the characteristics of strong anti-interference performance and low power consumption, and is suitable for rivers, lakes, reservoirs, channels, sewage treatment and other complex water environments with pollution or sediments. The float water level gauge is suitable for water level measurement in rivers, lakes, reservoirs, estuaries, channels, ship locks, groundwater and various hydraulic structures. Main features: float sensing, simple structure, mechanical encoding, intermittent carry, no worries about power failure and lightning strikes.

[0029] like Figure 3 As shown, the water surface liquid level is collected by using a float water level gauge and a radar water level gauge together, and then the values ​​fed back by the two water level gauges are input into the PLC. The PLC uses its own PID to perform calculations, and obtains an analog value based on the comparison values ​​of the two water level gauges, and then compares it with the original initial position value. The obtained value is transmitted to the hydraulic station 5, and then the hydraulic station 5 controls the operation of the stroke amplification mechanism 1, thereby lifting or lowering the entire device.

[0030] Meanwhile, the stroke amplification mechanism 1 in this embodiment adopts a hydraulic cylinder drive system. The hydraulic cylinder drive system includes the following functions:

[0031] A. To solve the problem of the device falling, the system uses a hydraulically controlled one-way valve for self-locking;

[0032] B. In order to solve the problem of stable lifting of the device, the system adopts a one-way speed regulating valve to adjust the speed;

[0033] C. To ensure safety and prevent accidents, the system uses a pipeline rupture protection valve installed on the oil inlet joint of the hydraulic cylinder. Once the pipeline ruptures or the joint becomes loose, it can automatically switch the oil circuit according to the pressure difference to prevent the device from falling.

[0034] Compared with the prior art, the automatic docking device for dock cables of the present invention has the following advantages:

[0035] 1. This device rises and falls synchronously with the tide and the position of the ship's port, so that the cable port and the ship are at the same level, avoiding bending of the submarine cable and affecting the quality of the cable;

[0036] 2. Improve the cable transmission speed and save costs. After using this device, the cable transmission speed is increased from 60 meters / minute to 100 meters / minute, saving cable transmission time. According to statistics, each 1000KM of cable transmission is about 4 days earlier, saving 400,000 yuan in costs;

[0037] 3. No additional occupation of the terminal operation area and no impact on the normal operation of the gantry crane.

[0038] To sum up, the automatic docking device for cable transmission at the dock of the present invention can automatically dock with the connection part of the ship during cable transmission, thereby solving the problem of bending damage to the cable caused by the fixed cable transmission port. When the hull rises and falls with the tide, it can automatically follow the rise and fall of the hull to ensure that the cable is aligned with the cable transmission port of the hull at the dock, avoiding the bending of the submarine cable that affects the quality of the cable, and achieving smooth rise and fall, good safety performance, increased cable transmission speed, cost savings, no longer occupying the dock operating area, and no affecting the normal operation of the gantry crane.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic docking device for dock cables, characterized in that: It includes a stroke amplification mechanism, a base frame, a hinge assembly, a cable transport rack and a hydraulic station. The stroke amplification mechanism, the hinge assembly and the hydraulic station are all arranged on the base frame. The cable transport rack is movably arranged on the upper end of the base frame through the stroke amplification mechanism and the hinge assembly. The stroke amplification mechanism includes a lifting and folding bracket, a hydraulic cylinder, a cylinder support, a telescopic inner sleeve, a telescopic outer sleeve and a cylinder. The lifting and folding bracket is arranged between the base frame and the cable transport rack. The hydraulic cylinder is obliquely connected between the base frame and the lifting and folding bracket. The cylinder is respectively connected to the base frame and the lifting and folding bracket through the cylinder support. The telescopic inner sleeve and the telescopic outer sleeve are wrapped on the outer surface of the cylinder. The telescopic inner sleeve and the telescopic outer sleeve are connected together. The stroke amplification mechanism adopts a special-shaped parallelogram structure. The automatic docking device for dock cable transmission also includes a water level gauge and a PLC. The water level gauge is connected to the hydraulic station through the PLC. The water level gauge includes a float water level gauge and a radar water level gauge. When the tide is high, an analog value is obtained based on the comparison value of the float water level gauge and the radar water level gauge, and then compared with the original initial position value. The obtained value is transmitted to the hydraulic station to operate the lifting device. When the tide is low, the comparison value is transmitted to the hydraulic station to operate the lowering device.

2. The automatic docking device for dock cables according to claim 1, characterized in that: The hydraulic station is located between the stroke amplification mechanism and the hinge assembly.

3. The automatic docking device for dock cables according to claim 1, characterized in that: The telescopic inner sleeve and the telescopic outer sleeve are fixedly connected by a shear pin.

4. The automatic docking device for dock cables according to claim 1, characterized in that: The cable transmission rack adopts a double-row structure.

5. The automatic docking device for dock cables according to claim 1, characterized in that: The front end of the cable transmission rack is also provided with two elbow routing racks.

6. The automatic docking device for dock cables according to claim 1, characterized in that: The upper part of the lifting and folding bracket is connected to the bottom of the elbow routing frame.

Images