Marine cable tractor

Abstract

The utility model relates to a marine cable traction machine, including traction module and with cooperation fixed module, traction module includes electric capstan, is equipped with the reel on electric capstan, is wound with traction rope on reel, one end of electric capstan is equipped with the motor for driving reel rotation, fixed module includes metal base, is laid with a plurality of detachable electromagnet under base, is equipped with the support vertical board of both sides of base, to support electric capstan, make the reel and form the work space between base. When using, through setting electromagnet under fixed module distribution, make fixed module can firmly adsorb in the arbitrary position of ship steel deck, convenient and flexible, strong suction, provide reliable and convenient use's traction power for marine cable laying, fixed reliable and low to environmental condition requirement, and the operation is simple, and the suction disappears as soon as power off, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of shipbuilding, specifically to ship cable traction machines, and more particularly to a cable traction machine suitable for assisting in the laying of ship cables. Background Technology

[0002] Cable laying is a crucial aspect of ship outfitting. Cables are widely distributed on ships, varying in specifications, quantity, route, and length, making cable laying a significant workload. During cable laying, coiled cables must be pulled from their reels and placed and secured onto cable trays in the correct direction and location. Currently, cable laying is primarily done manually; the thicker and longer the cable, the more labor-intensive the laying and the more personnel required. With the increasing size and electrification of ships, the outer diameter of marine cables can now exceed 60mm, and the length of a single trunk cable can exceed 100m. The labor load for cable laying is growing increasingly heavy, sometimes requiring more than twenty people to work together on a single cable.

[0003] Currently, there are explorations into using mechanical power to replace or assist manual labor in the laying of marine cables. This involves using traction equipment to provide the power for the cable to detach from the reel and move forward on the support. Because cables are generally thick, heavy, and rigid, they require significant traction force, necessitating a securely fixed traction device. This device also needs to be flexibly deployed throughout the ship. However, it's impossible to provide a reliable fixed interface for the traction device at every location on board. This leads to the common practice of welding the device to the deck, then cutting the connection after use. While this achieves fixation, the process is cumbersome, difficult to adjust, and the repeated spot welding and gas cutting operations pose a potential threat to the deck structure. This severely restricts the application and widespread use of cable traction equipment. Summary of the Invention

[0004] The purpose of this invention is to provide an improved marine cable traction machine that uses the magnetic attraction between an electromagnet and the steel deck of a ship to fix the device on the deck, while meeting the requirements of providing traction force, reliable fixation, and flexible movement, thus providing reliable and convenient traction power for marine cable laying.

[0005] To achieve the above objectives, the technical solution of this utility model is: a marine cable traction machine, characterized in that: the cable traction machine includes a traction module and a fixed module that cooperates with it; the traction module includes an electric winch, on which a drum is provided, and a traction rope is wound on the drum; one end of the electric winch is provided with a motor for driving the drum to rotate; the fixed module includes a metal base, under which several detachable electromagnets are arranged, and on both sides of the base are supporting plates for supporting the electric winch, so that a working space is formed between the drum and the base.

[0006] Preferably, 6-20 electromagnets are set up, symmetrically arranged in pairs below the base. The electromagnets are flat and round steel bodies with threaded holes on the top, and are fixedly connected to the base by adjusting bolts.

[0007] Furthermore, the base has a frame structure, which is constructed by vertically intersecting vertical and horizontal plates. A horizontal bar is provided in the middle of the base, and a circuit splitter is provided on the horizontal bar. The circuit splitter is connected to the power supply through a transformer.

[0008] Furthermore, a disconnecting switch and a quick connector are connected in series between the transformer and the power supply. The disconnecting switch has a manual control panel, and the quick connector is connected to the power supply through an AC switch control box.

[0009] Furthermore, drum baffles are provided at both ends of the drum, and the drum baffles cooperate with the support plate to allow the electric winch to be placed on the base in mid-air.

[0010] Furthermore, the traction line uses a 5mm diameter ultra-high molecular weight polyethylene rope.

[0011] Compared with the prior art, the technical solution of this utility model not only improves the overall technical solution, but also includes many detailed improvements. Specifically, it has the following beneficial effects:

[0012] 1. The improved solution of this utility model includes a cable traction machine comprising a traction module and a fixing module therewith; the traction module includes an electric winch with a drum on it, a traction rope wound on the drum, and a motor at one end of the electric winch for driving the drum to rotate; the fixing module includes a metal base with several detachable electromagnets arranged below it, and support plates on both sides of the base for supporting the electric winch, so that a working space is formed between the drum and the base. The device is fixed on the deck by using the magnetic attraction between the electromagnets and the steel deck of the ship, while meeting the requirements of providing traction force, reliable fixing, and flexible movement, providing reliable and convenient traction power for laying marine cables;

[0013] 2. In the technical solution of this utility model, 6-20 electromagnets are set up and symmetrically arranged in pairs below the base. The electromagnets are flat and round steel bodies. When energized, they generate magnetic attraction between themselves and the steel deck. When multiple electromagnets work together, the total attraction between them and the deck overcomes the tension of the cable, keeping themselves and the electric winch fixed, thus meeting the requirements of cable traction. At the same time, the use of electromagnets for attraction is convenient and flexible, with strong attraction, reliable fixation, and low requirements for environmental conditions. Fixing and releasing operations are simple, and the attraction disappears when the power is cut off, making it safe and reliable.

[0014] 3. In the structure of this utility model, the electromagnet is a flat round steel body with a threaded hole at the top. It is fixedly connected to the base by adjusting bolts. The height gap between each electromagnet and the base can be adjusted by adjusting the screw depth of the bolts. This can adapt to uneven deck conditions and ensure that each electromagnet is in full contact with the deck surface to exert maximum attraction. At the same time, with the circuit splitter, the number of electromagnets can be flexibly increased or decreased, thereby achieving the effect of adjusting the attraction force and the overall weight of the device.

[0015] 4. This utility model has a simple structure, reasonable layout, flexible and convenient application, and is applicable to many scenarios, making it easy to promote and utilize. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention in use.

[0017] Figure 2 This is a schematic diagram of the traction module of this utility model.

[0018] Figure 3 This is a structural schematic diagram of the fixing module of this utility model.

[0019] Figure 4 This is a structural schematic diagram of an embodiment of the present utility model.

[0020] Figure 5 This is another structural schematic diagram of an embodiment of the present utility model.

[0021] Figure label:

[0022] 1. Electric winch, 2. Traction rope, 3. Base, 4. Electromagnet, 5. Circuit splitter, 6. AC switch control box, 7. Transformer, 8. Disconnecting switch, 9. Quick connector, 10. Electric winch fixing bolts, 11. Adjusting bolts;

[0023] 31. Support plate. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] This utility model provides a marine cable traction machine, see details below. Figure 1The difference between this and existing technologies lies in the following: the cable traction machine includes a traction module and a corresponding fixing module. By adhering to the ship's steel plate through the fixing module, the cable traction machine can be placed anywhere on the ship where needed. The traction module includes an electric winch with a drum on it, and a traction rope wound on the drum. One end of the electric winch is equipped with a motor to drive the drum to rotate. The fixing module includes a metal base with several detachable electromagnets arranged below it. Support plates are provided on both sides of the base to support the electric winch, creating a working space between the drum and the base to facilitate the traction of the cable.

[0026] In use, the electromagnets distributed below the fixing module allow the fixing module to be stably attached to any position on the steel deck of the ship. It is convenient, flexible, and has strong suction, providing reliable and easy-to-use traction power for laying marine cables. It is reliable in fixing and has low requirements for environmental conditions. Fixing and unfixing operations are simple. The suction disappears when the power is cut off, making it safe and reliable.

[0027] Example 1

[0028] In this embodiment, a marine cable traction machine is described in detail below. Figure 1 The cable traction machine includes a traction module and a corresponding fixing module, which allows for adhesion to the ship's steel plates. The traction module includes an electric winch 1 with a drum on which a traction rope 2 is wound. One end of the electric winch is equipped with a motor to drive the drum's rotation. The fixing module includes a metal base 3 with several detachable electromagnets 4 arranged below it. Support plates 31 are located on both sides of the base to support the electric winch, creating a working space between the drum and the base for easy traction of the cable. The electric winch provides the power to pull the cable. Its main components are a motor and a drum, which are coaxially and horizontally connected, allowing the motor to drive the drum's rotation. The electric winch has bolt holes at the bottom for connection to the base. The electric winch uses 380V three-phase AC power, the same as the ship's electrical system.

[0029] Specifically, 6-20 electromagnets can be set; in this embodiment, 8 are set, symmetrically arranged in pairs below the base. Each electromagnet is a flat, round steel body with threaded holes at the top, and is fixedly connected to the base via adjusting bolts 11. The height of the electromagnets can be adjusted using adjusting bolts 11 to accommodate the varying elevations of the deck surface, resulting in stronger adsorption and a fully effective attraction. When multiple electromagnets work together, the total attraction to the deck overcomes the tension of the cable, keeping the electromagnets and the electric winch fixed.

[0030] The base is a metal frame structure, its shape adapted to the bottom of the electric winch. It is constructed by vertically intersecting longitudinal and transverse plates. A horizontal bar is located in the middle of the base, and a circuit splitter 5 is mounted on the horizontal bar. The circuit splitter is connected to the power supply via a transformer. The main function of the base is to connect multiple discrete electromagnets into a whole and to act as a transitional connector, keeping the electric winch and electromagnets relatively fixed, so that the electric winch can remain stationary when subjected to tensile loads.

[0031] Furthermore, a disconnecting switch 8 and a quick connector 9 are connected in series between the transformer 7 and the power supply. The disconnecting switch has a manual control knob, and the quick connector is connected to the power supply via the AC switch control box 6. The transformer converts 380V AC power to low-voltage (e.g., 12V or 24V) DC power, which is then output to the circuit splitter. For ease of use, the transformer and the electric winch share a power supply, which is drawn from the AC switch control box. The disconnecting switch controls the power supply to the electromagnet by controlling the current input to the transformer. The output terminal of the disconnecting switch is connected to the input terminal of the transformer, and the input terminal is connected to the terminal block inside the AC switch control box. The disconnecting switch and the transformer jointly provide power to the electromagnet, and are fixedly connected as a whole for easy use and portability. The quick connector, located between the AC switch control box and the disconnecting switch, is a wire connection device with a reusable lever clamping mechanism. It allows for quick connection or disconnection of the connector contacts and wires. Its purpose is to connect the AC switch control box and the disconnecting switch during operation and disconnect them during movement, facilitating separate transport of the device.

[0032] Furthermore, drum baffles are provided at both ends of the drum, and the drum baffles cooperate with the support plate to allow the electric winch to be placed on the base in mid-air.

[0033] Furthermore, the traction rope is wound around the drum of the electric winch, with its near end fixed to the drum and its far end free for connecting the cable. The release and retrieval of the traction rope are achieved by changing the rotation direction of the electric winch drum. The length of the traction rope is not less than the maximum length of the cable to be laid. Considering the need for portability and mobility, the traction rope should preferably be made of a tough, flexible, and lightweight material, such as 5mm diameter ultra-high molecular weight polyethylene rope.

[0034] Example 2

[0035] In this embodiment, the described cable traction machine includes a traction module and a fixing module that works in conjunction with it. The fixing module allows for adhesion to the steel plate of the ship's hull. The traction module includes an electric winch with a drum on it. A traction rope is wound on the drum. One end of the electric winch is equipped with a motor for driving the drum to rotate. The fixing module includes a metal base with several detachable electromagnets arranged below it. Support plates are provided on both sides of the base to support the electric winch, creating a working space between the drum and the base to facilitate the traction of the traction rope.

[0036] Specifically, according to the maximum length of the cable to be laid and the complexity of the laying path, the power of the electric winch 1 is determined (for example, 3KW). The electric winch 1 is in a flat form, with the motor and the drum connected in series horizontally. The bottom of the device has fixed bolt holes and uses 380v three-phase alternating current. Then, according to the maximum length of the cable to be laid, the length of the towing rope 2 is determined (for example, 100m - 150m). One end of it is connected to the surface of the drum of the electric winch 1 and is entirely wound around the latter's surface. The towing rope 2 should have sufficient strength and be as light and flexible as possible. For example, a ultra-high molecular weight polyethylene rope with a diameter of 5mm can be used.

[0037] The base 3 is made of metal material (such as an angle steel with a side length of 50mm), presenting a planar frame structure. A number of round holes are drilled below the frame to fit the adjusting bolts 11 for fixing the electromagnet 4. The frame is in the shape of a "day" character, and the middle crossbar can be used to install the circuit splitter 5, making the circuit splitter set basically in the middle, which is convenient for later connection to the electromagnet. The height of the middle crossbar is higher than that of the circuit splitter to avoid the circuit splitter being accidentally impacted from above. The electric winch 1 is installed above the frame. To ensure that any part of the electric winch 1 does not rub against the deck and at the same time ensure that when the drum rotates, the towing rope does not rub against other objects below, the installation position of the electric winch 1 is appropriately elevated. For this purpose, an elevated platform is set above the planar frame structure, whose shape and size are the same as the bottom mounting surface of the electric winch 1, and the two can be fixed using the fixing bolts 10.

[0038] Multiple electromagnets are arranged symmetrically left and right, with the same specifications, all being steel flat cylinders. There are threaded holes at the top, which can fit the adjusting bolts 11 for connecting and fixing to the base 3. The electromagnet 4 uses direct current (for example, 24v), and the wire is led out from the side and connected to the corresponding output port of the circuit splitter 5. To ensure the reliability and convenience during use and handling, the wire should be fixed along the inner surface of the structural components of the base 3. When powered on, the electromagnet 4 placed on the steel deck generates suction. When the total suction is greater than the cable tension, the marine cable traction machine remains fixed. When powered off, the electromagnet 4 has no suction.

[0039] The circuit splitter 5 is in the shape of a flat box. One side of it has multiple groups of output ports. The number of groups of output ports is not less than the number of electromagnets 4. Each group of output ports contains 2 terminals, which are connected to the "+" and "-" wires of an electromagnet 4. There is also a group of input ports, containing 2 terminals, for the input of the direct current generated by the transformer 7.

[0040] The AC switch control box 6 is a closed, square steel box. It is connected to the three-phase 380V marine power supply and the motor of the electric winch 1 via wires. Its operating surface has a knob; turning the knob to different positions changes the contact status of different internal contacts, controlling the power supply's on / off state and altering the motor's phase sequence, thus enabling the electric winch 1 motor to have "forward," "stop," and "reverse" functions. The AC switch control box 6 is not fixed and can be flexibly placed nearby during use. To address situations where the usage location is far from the ship's power supply, its connection cable to the power supply should be sufficiently long (e.g., no less than 15m).

[0041] Transformer 7 is used to convert 380V AC power into DC power to power magnet 4. For example, a flat-box switching power supply with an output voltage of 24V can be used. The output DC voltage of transformer 7 should be consistent with the rated voltage of electromagnet 4, and the output current should not be less than the sum of the rated currents of all electromagnets 4. Transformer 7 has one AC input port and one DC output port. The AC input port has two terminals, which are connected to two phases of the three-phase terminals inside the AC switch control box 6 via isolating switch 8 and quick connector 9. The DC output port has two terminals, which are connected to the two terminals of the input port of circuit splitter 5.

[0042] The disconnector switch 8 has a manual lever that controls the circuit's on / off state by tossing the lever. One side is connected to the input terminal of the transformer 7, and the other side is connected via a quick connector 9 to two phases of the three-phase terminals inside the AC switch control box 6. The disconnector switch 8 is used to directly control whether the transformer 7 has an output. The two are closely connected and can be integrated into one unit through methods such as casing, clamping, binding, or custom-made, or made into a single component with the same function for ease of use and portability.

[0043] The quick connector 9 is located between the disconnecting switch 8 and the AC switch control box 6. Its purpose is to facilitate the separate transport of the electric winch and electromagnet base assembly during the movement and transfer of the cable traction machine, allowing for quick disconnection at this point and rapid connection during use. Its key feature is that the disconnection and connection operations do not rely on tools; a wire clamping mechanism can be manually pried open or pressed, quickly achieving connection or disconnection between the connector contacts and the wire.

[0044] The beneficial effects of this utility model are:

[0045] (1) An electric winch is used as the cable traction power, the tension meets the cable laying requirements, and the size and weight of the device meet the needs of construction site layout and portable movement.

[0046] (2) Using electromagnets as a means of fixing the device is in line with the working principle of the steel deck environment on the ship. The attraction is strong, the fixation is reliable and the environmental conditions are low. The operation of fixing and unfixing is simple.

[0047] (3) The on / off control of the electromagnet is independent of the electric winch and is controlled by a dedicated isolating switch. The presence or absence of the electromagnet's attraction can be adjusted after the device is powered on, making it convenient to adjust the device position and further improving operational flexibility.

[0048] (4) Multiple electromagnets are connected from the circuit splitter. Without exceeding the upper limit of the number of channels of the circuit splitter, the number of electromagnets can be flexibly increased or decreased, thereby achieving the effect of adjusting the attraction force and the overall weight of the device.

[0049] (5) Each electromagnet is connected to the base by a top bolt. The height gap between each electromagnet and the base can be adjusted by adjusting the screw depth of the bolt. This can adapt to uneven deck conditions and ensure that each electromagnet is in full contact with the deck surface to exert maximum attraction.

[0050] (6) A quick connector is provided between the AC switch control box and the disconnecting switch, which allows for convenient physical disconnection, thus dividing the entire device into a traction module and a fixed module. The traction module includes an electric winch and traction rope, an AC switch control box, and a quick connector; the fixed module includes a base, an electromagnet, a circuit splitter, a transformer, and a disconnecting switch. The two modules can be carried separately, reducing the load on personnel; they can be quickly assembled with a few bolts (e.g., 4).

[0051] (7) The traction rope can be made of ultra-high molecular weight polyethylene rope, which is tough, lightweight and soft. It is not easy to get tangled during the winding process, and it also has the effect of reducing the weight of the device, making it convenient to use and transport.

[0052] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A marine cable traction machine, characterized in that: The cable pulling machine includes a pulling module and a fixing module that works with it. The pulling module includes an electric winch with a drum on it and a pulling rope wound on the drum. One end of the electric winch is equipped with a motor to drive the drum to rotate. The fixing module includes a metal base with several detachable electromagnets arranged below it. Support plates are provided on both sides of the base to support the electric winch, so that a working space is formed between the drum and the base.

2. The marine cable traction machine according to claim 1, characterized in that: Set up 6-20 electromagnets, arranged symmetrically in pairs below the base. The electromagnets are flat and round steel bodies with threaded holes on the top, and are fixedly connected to the base by adjusting bolts.

3. The marine cable traction machine according to claim 1, characterized in that: The base has a frame structure, which is made up of vertical and horizontal plates that are vertically intersected. A horizontal bar is set in the middle of the base, and a circuit splitter is set on the horizontal bar. The circuit splitter is connected to the power supply through a transformer.

4. The marine cable traction machine according to claim 3, characterized in that: A disconnecting switch and a quick connector are connected in series between the transformer and the power source. The disconnecting switch has a manual control panel, and the quick connector is connected to the power source through an AC switch control box.

5. The marine cable traction machine according to claim 1, characterized in that: The drum has drum baffles at both ends, which cooperate with the support plate to allow the electric winch to be placed on the base in mid-air.

6. The marine cable traction machine according to claim 1, characterized in that: The traction line is made of 5mm diameter ultra-high molecular weight polyethylene rope.

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