Shore power cable supporting bridge

Abstract

A shore power cable supporting bridge is used for supporting a cable when a ship receives shore power, and relates to the technical field of design and manufacture of cable supporting equipment for shore power connection, the shore power cable supporting bridge comprises a cable bridge and a cable reel, the cable bridge comprises a main frame, a front support and a rear support, and the front support and the rear support are connected with the main frame through rotating shaft pins. Hydraulic supporting rods are arranged below the front cable support and the rear cable support, the cable reel is composed of pulley blocks and comprises a cable reel herringbone support, the pulley blocks, the hydraulic supporting rods and a base, the cable reel is arranged on the hydraulic rods, when the ship shakes, the hydraulic supporting frames can float up and down, and the cable reel has the up-down adjusting amplitude. And the cable can be prevented from being stretched or snapped.

Description

Technical Field

[0001] A shore power cable support bridge, used to support the cable when the ship receives shore power,

[0002] And the field of design and manufacturing technology of cable support equipment for shore power connection. Background Art

[0003] The management of carbon emissions and other pollutant emissions from ships within the port has become increasingly strict. Building green ports is an important task to achieve low-carbon emissions in the transportation sector, and the effective way to achieve zero carbon emissions for ships moored in ports is to use shore power. The main method is to convert the grid power through transformers and other equipment into the voltage and frequency level power required by the berthing ships. The shore power system refers to the equipment that supplies power to the ship from the dock during the operation of the ship at the port. The shore power system is divided into high-voltage shore power and low-voltage shore power. The shore power system is to send power from the shore power supply device to the ship's power receiving mechanism through the ship and the shore. At present, the shore power supply to ships is mainly composed of cable winches, transformers and electrical management equipment. Some shore power equipment is also equipped with electrical management systems, detection and emergency disconnection systems, as well as safety interlocks, load transfer, short-circuit protection, reverse power protection and other equipment; when connecting to shore power, you need to first use a cable winch to release the cable from the ship and connect it to the shore power socket at the dock. The process is mainly divided into three steps: first switch the shore power to the ship power, connect the shore power after the closing test, check that the electrical parameters are correct, switch the shore power to the ship power, and then supply power from the shore power. After switching the ship power to the shore power, restore the normal operation of the ship power station, arrange personnel on duty to monitor the status, and finally switch the ship power to the shore power. Prepare the generator for a period of time before leaving the berth to reduce the load on the power grid, switch the shore power with the ship power, and restore the normal operation of the power station;

[0004] At present, the use of shore power is basically mature. During use, due to the dry season and flood season of rivers, the rivers near the sea will also have high and low water levels due to the tides of the sea. Ships sailing in inland rivers, due to the limited width of rivers, fast-sailing ships, especially large-tonnage ships and heavily loaded ships, will cause waves when sailing. These high and low water levels and waves will cause the hull of the ship moored in the port to shake and fluctuate up and down. In addition, due to the tides of the river, the height of the ship and the dock will also change during the process of docking. In this case, if the connected shore power cable is too tight, there will be problems of being pulled off or the plug being pulled out, or being torn. In order to solve these problems, in the prior art, in order to solve the damage caused by ship fluctuations, changes in water levels during flood seasons and low water seasons, and the stretching of the shore power supply cable due to the tides, The basic method is to set up a set of brackets behind the shore power sales device, put the cable pulled from the ship's cable winch on the brackets and then insert it into the shore power sales device on the shore. However, the support frame is a fixed device and cannot adjust the installed cable to loosen or tighten when the river water rises or falls, or when the waves of the sailing ship shake. Therefore, when installing the shore power cable, a surplus length of the cable will be left, and the reserved cable surplus length will be placed on the ground on the shore for a long time. As a result, the up and down floating and swinging of the ship will cause the cable to rub against the ground, and the outer sheath of the cable will be worn out over time, resulting in the scrapping of the cable. If the wear and tear of the cable outer protective shell is not discovered in time, the cable may catch fire, thereby causing harm to the ship. Utility Model Content

[0005] The purpose of the utility model is to design a slidable cable connection bridge frame that can reduce the friction risk of cables placed on the ground and meet the required connection margin length of the cables in view of the shortcomings of the existing technology, mainly including a cable bridge frame and a cable reel;

[0006] A shore power cable support bridge frame comprises a main frame, a front support and a rear support, wherein the front support and the rear support are respectively connected to the front and rear ends of the main frame, and the front support, the rear support and the main frame are connected by a rotating shaft pin;

[0007] The main frame is fixedly connected to the top of the bridge support, and the front bracket and the rear bracket are connected to the two ends of the main frame by a rotating shaft pin so as to be rotatable up and down;

[0008] Two hydraulic rods are arranged on the front and rear circumferential surfaces of the bridge support, and the upper ends of the hydraulic rods are respectively connected to the lower end surfaces of the front bracket and the rear bracket by rotating bolts. The connected front bracket and the rear bracket can move up and down under the support of the hydraulic rods;

[0009] The front bracket may be a separate bracket, and the front end of the separate bracket is in a trumpet shape, which is convenient for inserting the cable;

[0010] The front bracket can also be a three-channel multi-channel bracket. If it is a multi-channel bracket, the front end of the bracket arranged in the middle is a bell mouth, and the front ends of the brackets on the left and right sides are inclined to the left and right sides respectively, which is convenient for the insertion of the cable. Because it is a bell mouth or inclined to the left and right sides, when the ship shakes due to waves, the wear of the cable protective shell by the front end of the bracket can be reduced;

[0011] A protective layer is applied on the outside of each of the front bracket and the rear bracket, and the protective layer is made of plastic material and other anti-wear materials;

[0012] A cable clip is arranged on each of the main frame, the front bracket and the rear bracket, and the cable can be clipped into the slot of the bracket. The cable clip adopts a hook-type clip, which is convenient for loading and unloading the cable;

[0013] The cable reel is composed of multiple pulley groups, including a cable reel herringbone bracket, a pulley group, a hydraulic support rod and a base;

[0014] The cable reel herringbone bracket may be a group of independent cable reels, or a combined cable reel composed of multiple groups of independent cable reels;

[0015] Preferably: the independent cable reel has two pulley grooves, and the independent cable reel is arranged on the herringbone brackets on both sides;

[0016] Preferably: a combined cable reel consisting of a plurality of independent cable reels, each of which has a herringbone bracket on both sides;

[0017] A support column is arranged in the vertical middle of the herringbone bracket, a groove is arranged in the middle of the support column, and a hydraulic support rod is arranged in the groove;

[0018] A support column with a groove is arranged in the middle of the herringbone brackets on both sides of each pulley block;

[0019] A hydraulic support rod is arranged in each support column, and the central axis of each pulley block is arranged at the lower end of the hydraulic support rod, and the upper end of the hydraulic support rod is fixedly supported in the upper corner of the herringbone bracket;

[0020] Each group of hydraulic support rods is arranged in the support column in the middle of the herringbone brackets on both sides of the pulley block;

[0021] A guide wheel bracket is arranged on the inclined surface of the rear end support column of the herringbone bracket, a hydraulic rod is arranged on the lower end surface of the guide wheel bracket, and a guide wheel is arranged at the tail end of the guide wheel bracket.

[0022] Beneficial technical effects of the utility model

[0023] 1. The cable bracket at the front end is a three-section bracket, the middle one is fixed, and the front and rear brackets are both equipped with hydraulic support rods. When the ship is shaken by waves, the front and rear support frames can float up and down with the support of the hydraulic support rods, which can ensure that the cable can float up and down on the support without being stretched or broken;

[0024] 2. The arc-shaped buckles set on the front and rear brackets and the main bracket can clamp the cables in the grooves of the brackets to prevent the cables from falling to the ground due to the shaking of waves;

[0025] 3. The bell-shaped shape set at the front end of the front support frame and the plastic protective shell covering the bell-shaped shape can prevent the cable from being worn out when it is pushed by waves, thereby extending the safe use period of the cable;

[0026] 4. A pulley groove is provided on the cable reel at the rear end of the supporting bridge. The cable moves in the pulley groove and then passes through the guide wheel provided on the cable reel bracket and is inserted into the point-of-sale equipment. The cable reel is provided on the hydraulic rod, so that the cable reel can be adjusted up and down when the cable is stretched;

[0027] 5. The hydraulic support rod arranged under the guide wheel support arm can also adjust the amplitude when the cable is stretched, so as to ensure that the cable does not fall to the ground, and when the cable is stretched, it can also adjust the stretching distance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the front structure connection of the utility model;

[0029] Figure 2 It is a top view structural diagram of three groups of cable bridge structures of the utility model;

[0030] Figure 3 It is a schematic diagram of the side structure of the cable reel enlarged in the utility model;

[0031] Figure 4 for Figure 3 The left side view shows a magnified schematic diagram of the structure of three combined cable reels;

[0032] Figure 5 It is a schematic diagram of the connection between the utility model and the ship and the electricity selling screen. DETAILED DESCRIPTION

[0033] Legend

[0034] In the figure: cable 1, cable clamp 2, pivot pin 3, main frame 4, bridge support 5, hydraulic rod 6, bridge base 7, pulley block 8, herringbone bracket 9, hydraulic support rod 10, guide wheel bracket 11, guide wheel 12, electricity sales screen 13, hydraulic rod 14, base 15, center axis 16, rear bracket 17, front bracket 18, pulley groove 19, support column 20.

[0035] Example 1: Structure

[0036] See also Figure 1-5 A shore power cable support bridge, including a cable bridge and a cable reel, the cable bridge includes a main frame 4, a front bracket 18 and a rear bracket 17, the front bracket 18 and the rear bracket 17 are respectively connected to the front and rear ends of the main frame 4, and the front bracket 18, the rear bracket 17 are connected to the main frame 4 by a rotating shaft pin 3; the main frame 4 is fixedly connected to the top of the bridge support 5, and the front bracket 18 and the rear bracket 17 are connected to the two ends of the main frame by the rotating shaft pin 3 so as to be rotatable up and down; the cable bracket arranged at the front end is a three-section bracket, and the middle is a fixed bracket. The front and rear brackets are both provided with hydraulic support rods. When the ship is shaken by waves, the front and rear support frames can float up and down with the support of the hydraulic support rods, which can ensure that the cables can float up and down on the support without being stretched or broken; two hydraulic rods 6 are provided on the front and rear circumferential surfaces of the bridge support 5, and the upper ends of the hydraulic rods 6 are respectively connected to the lower end surfaces of the front bracket 18 and the rear bracket 17 by rotating bolts. The connected front bracket 18 and the rear bracket 17 can move up and down with the support of the hydraulic rods 6;

[0037] Preferably: the front bracket 18 can be a separate bracket, and the front end of the separate bracket is in a trumpet shape to facilitate the insertion of the cable;

[0038] Preferably: the front bracket 18 can also be a three-channel multi-channel bracket. If it is set as a multi-channel bracket, the front end of the bracket set in the middle is a trumpet, and the front ends of the brackets on the left and right sides are inclined to the left and right sides respectively, which is convenient for the insertion of cables. Because it is a trumpet or inclined to the left and right sides, when the ship shakes due to waves, the wear of the cable protective shell by the front end of the bracket can be reduced. The trumpet shape set at the front end of the front support frame and the plastic material protective shell coated on the trumpet can prevent the cable from being worn when it is pushed by waves to move, thereby extending the safe use period of the cable; a protective layer is laid on the outside of each front bracket 18 and rear bracket 17, and the protective layer is composed of plastic material and other anti-wear materials; a cable clamp 2 is set on each main frame 4 and the front bracket 18 and the rear bracket 17, and the cable can be clamped in the groove of the bracket. The cable clamp 2 adopts a hook-type card, which is convenient for loading and removing cables;

[0039] The cable reel is composed of multiple pulley groups 8, including a cable reel herringbone bracket 9, a pulley group 8, a hydraulic support rod 10 and a base 15;

[0040] The cable reel herringbone bracket 9 can be a group of independent cable reels, or a combined cable reel composed of multiple groups of independent cable reels;

[0041] Preferably: the independent cable reel has two pulley grooves 19, and the independent cable reel is arranged on the herringbone brackets 9 on both sides; the cable reel arranged at the rear end of the supporting bridge is provided with a pulley groove, the cable moves in the pulley groove, and then passes through the guide wheel arranged on the cable reel bracket and is inserted into the point-of-sale device, and the cable reel is arranged on the hydraulic rod, so that the cable reel can have an upward and downward adjustment range when the cable is stretched;

[0042] Preferably: a combined cable reel composed of multiple groups of independent cable reels, each group of independent cable reels has a herringbone bracket 9 on both sides, a support column 20 is arranged in the vertical middle of the herringbone bracket 9, a groove is arranged in the middle of the support column 20, and a hydraulic support rod 10 is arranged in the groove;

[0043] A support column 20 with a groove is arranged in the middle of the herringbone bracket 9 on both sides of each group of pulley blocks 8, and a hydraulic support rod 10 is arranged in the support column 20. The central axis 16 of each group of pulley blocks 8 is arranged at the lower end of the hydraulic support rod 10, and the upper end of the hydraulic support rod 10 is fixed in the upper end corner of the herringbone bracket 9. Each group of hydraulic support rods 10 is arranged in the support column 20 in the middle of the herringbone bracket 9 on both sides of the pulley block 8; a guide wheel bracket 11 is arranged on the inclined surface of the rear end support column of the herringbone bracket 9, a hydraulic rod 14 is arranged on the lower end surface of the guide wheel bracket, and a guide wheel 12 is arranged at the tail end of the guide wheel bracket 11.

[0044] The hydraulic support rod arranged under the guide wheel support arm can also have an adjustment range when the cable is stretched, so as to ensure that the cable does not fall to the ground, and when the cable is stretched, it can also adjust the stretching distance of the cable.

[0045] Example 2: Connect and use

[0046] See also Figure 5When using the utility model, the cable 1 on the ship is pulled to the shore by the cable winch on the ship, passes through the bell mouth at the front end of the cable bridge, the front bracket 18, the middle bracket 4 and the rear bracket 17, and is clamped in the groove of the bridge by the cable clamp 2, and then the cable is placed in one of the three cable reels, and is rolled into the pulley groove 19 of the cable reel from bottom to top, and then is wound into the guide wheel bracket 11 set at the rear end of the cable reel, and is wound out from above the guide wheel 12, and then the plug of the cable is inserted into the power selling plug on the power selling screen 13; when a ship passes by, the wave-like hull shakes, moves up and down, or When the hull is displaced up and down due to low tide or high tide, the hydraulic support rod on the bridge frame can move downward or upward under the tension of the cable to offset the tensile force on the cable caused by the shaking of the ship. When the cable reel arranged at the rear end encounters a larger cable stretch, the hydraulic support rod arranged on the reel and the hydraulic rod 14 arranged at the lower end of the guide wheel bracket 11 have an upward and downward movement range under the hydraulic support of each hydraulic rod, which can alleviate the stretching of the cable. Under the guidance of the guide wheel 12, the cable can also be stably inserted into the power socket of the power selling screen without being pulled out.

[0047] Furthermore, on the shaft in the middle of each pulley group 8, a ball bearing is provided on each intermediate shaft to ensure smooth and non-stuck rotation;

[0048] It needs to be further explained that: the electricity vending screen 13 is a structure of the prior art, and the cable structure on the ship is also the prior art. Ordinary technicians in this field can easily obtain technical guidance, so it will not be repeated here.

Claims

1. A shore power cable support bridge, comprising a cable bridge and a cable reel, characterized in that: The cable bridge comprises a main frame (4), a front bracket (18) and a rear bracket (17), wherein the front bracket (18) and the rear bracket (17) are respectively connected to the front and rear ends of the main frame (4), and the front bracket (18), the rear bracket (17) and the main frame (4) are connected by a rotating shaft pin (3); The main frame (4) is fixedly connected to the top of the bridge support (5), and the front bracket (18) and the rear bracket (17) are connected to the two ends of the main frame by a rotating shaft pin (3) so as to be rotatable up and down; A cable card (2) is arranged on each of the main frame (4), the front bracket (18) and the rear bracket (17); Two hydraulic rods (6) are arranged on the front and rear circumferential surfaces of the bridge support (5); the upper ends of the hydraulic rods (6) are respectively connected to the lower end surfaces of the front bracket (18) and the rear bracket (17) by rotating bolts; the connected front bracket (18) and the rear bracket (17) move up and down under the support of the hydraulic rods (6); The cable reel is composed of a plurality of pulley blocks (8), including a cable reel herringbone bracket (9), a pulley block (8), a hydraulic support rod (10) and a base (15); The cable reel herringbone bracket (9) is a group of independent cable reels, or a combined cable reel composed of multiple groups of independent cable reels; A support column (20) is arranged in the vertical middle of the herringbone bracket (9), a groove is arranged in the middle of the support column (20), and a hydraulic support rod (10) is arranged in the groove; A guide wheel bracket (11) is arranged on the inclined surface of the rear end support column of the herringbone bracket (9), a hydraulic rod (14) is arranged on the lower end surface of the guide wheel bracket, and a guide wheel (12) is arranged at the tail end of the guide wheel bracket (11).

2. A shore power cable support bridge according to claim 1, characterized in that: The front bracket (18) is a separate bracket, and the front end of the separate bracket is in a trumpet shape, which is convenient for inserting the cable.

3. The shore power cable support bridge according to claim 1, characterized in that: The front bracket (18) is a three-way multi-way bracket, and is arranged as a multi-way bracket, wherein the front end of the bracket arranged in the middle is a bell mouth, and the front ends of the brackets on the left and right sides are inclined to the left and right sides respectively.

4. The shore power cable support bridge according to claim 1, characterized in that: A protective layer is applied on the outside of each of the front bracket (18) and the rear bracket (17), and the protective layer is made of plastic material or other anti-wear materials.

5. The shore power cable support bridge according to claim 1, characterized in that: The cable clamp (2) is a hook-type clamp, which facilitates the operation of inserting and removing the cable.

6. The shore power cable support bridge according to claim 1, characterized in that: The independent cable reel has two pulley grooves (19), and the independent cable reel is arranged on the herringbone brackets (9) on both sides.

7. The shore power cable support bridge according to claim 1, characterized in that: A combined cable reel is composed of a plurality of independent cable reels, each of which has a herringbone bracket (9) on both sides.

8. The shore power cable support bridge according to claim 1, characterized in that: A hydraulic support rod (10) is disposed in each support column (20), the central axis (16) of each pulley block (8) is disposed at the lower end of the hydraulic support rod (10), and the upper end of the hydraulic support rod (10) is fixedly supported in the upper corner of the herringbone bracket (9).

9. The shore power cable support bridge according to claim 1, characterized in that: Each group of hydraulic support rods (10) is arranged in a support column (20) in the middle of the herringbone brackets (9) on both sides of the pulley block (8).

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