A deep sea anchor chain winch device

Abstract

The present invention discloses a deep-sea anchor chain winch device, comprising a device base fixed on the seabed and a floating mechanism placed on the device base; the floating mechanism comprises an anchor chain compartment with an anchor chain in the cavity and a floating body driving the anchor chain compartment to float, the anchor chain compartment is penetrated by a hollow rod arranged vertically with the device base, an anchor chain channel connecting the two ends is arranged in the hollow rod, a chain outlet hole and an anchor chain wheel and a matching driving assembly are arranged at the top of the anchor chain compartment for controlling the anchor chain to enter and exit the anchor chain compartment, and the rotating shaft of the anchor chain wheel is arranged vertically with the anchor chain channel in space; one end of the anchor chain is fixed to the bottom of the anchor chain compartment, and the other end of the anchor chain is fixedly connected to the device base through the anchor chain channel of the hollow rod after leaving the anchor chain compartment. The device provided by the present invention can realize controllable and stable lifting and lowering motion, and can maintain good verticality underwater and withstand large pulling force.

Description

Technical Field

[0001] The invention belongs to the field of underwater working devices, and in particular relates to a deep-sea anchor chain winch device. Background Art

[0002] The ocean covers about 71% of the total surface area of ​​the Earth, of which 90% has an average water depth greater than 1,000 meters and is called the deep sea.

[0003] The deep sea environment is rich in resources, and these deep sea resources often have high scientific research value and strategic value. When conducting biological research, resource exploration, seabed operations and other related work in the deep sea environment, a device that can rise and fall between the deep sea and the sea level is often needed to assist. Therefore, designing a reliable deep sea lifting device can provide great help for the development of deep sea resources and is of great significance.

[0004] For example, patent document CN105015738A discloses a lifting type submarine docking box, which includes an outer shell and a lifting cabin. The outer shell is fixed on the seabed, and the lifting cabin is placed inside the outer shell. The lifting cabin can rise or fall relative to the outer shell. The lifting cabin is provided with an instrument cabin located at the upper part and a lifting winch cabin located at the lower part. The lifting winch cabin is provided with a lifting winch, and a lifting cable is wound around the winch of the lifting winch. One end of the lifting cable is fixed to the bottom of the outer shell and is connected to the submarine transmission cable through a transfer cable, and the other end is fixed to the shaft of the lifting winch and is connected to the instrument equipment in the instrument cabin through an optoelectronic slip ring. The forward and reverse rotation of the lifting winch realizes the retraction and release of the lifting cable, thereby realizing that the lifting cabin can rise to the surface of the water or descend into the outer shell.

[0005] Patent document CN106516051A discloses a deep-sea relocatable buoy-based-dock box ocean observation system, including a buoy assembly, an optoelectronic composite cable and a docking box assembly; the optoelectronic composite cable connects the buoy assembly and the docking box assembly, the buoy assembly is used to collect sea surface data, provide power to the docking box assembly through the optoelectronic composite cable, and issue control instructions to the docking box assembly, the docking box assembly is used to collect seabed and water body data and send the seabed and water body data to the buoy assembly through the optoelectronic composite cable.

[0006] There are still some shortcomings for the two existing methods. For underwater cable winches, due to the deep working water depth in deep-sea environments, the cables need to be coiled for a long time. When the lifting device needs to remain vertical and needs to withstand a large tensile force, the drum cable arrangement method of the underwater cable winch is not reliable. Because long cables need to be arranged on drums with multiple layers of rewinding, the requirements for underwater autonomous cable arrangers are high, and they need to independently realize fine cable winding to prevent the cable from being stuck in the layer due to tension; in addition, because the cable is under the influence of water pressure and tensile force for a long time underwater, the cable diameter will change slightly. Generally, the ship-borne autonomous cable arranger can compensate for the diameter change through video, but it is difficult to achieve this video compensation underwater. Therefore, the underwater cable winch solution in this case is very likely to cause cable jams, resulting in failure of the lifting platform.

[0007] The buoyancy-driven cable-finding lifting device also has many problems. On the one hand, when the lifting device needs to remain vertical, a large surplus buoyancy needs to be provided to ensure that the system has sufficient upward stretching force, resulting in a large volume of buoyancy adjustment to provide sufficient driving force for movement; on the other hand, the buoyancy-driven cable-finding lifting device requires a long-term steel wire track for lifting, which increases the difficulty of design and construction of the entire system, and the long-term steel wire track is difficult to ensure its corrosion resistance and biological adhesion; thirdly, the lifting speed of the buoyancy-driven method is poorly controllable due to the flow problem of the seawater pump. At the same time, the wear and friction resistance of the mechanism moving along the steel cable may also cause uncertainty in the resistance caused by load changes, and it is difficult to maintain stability during lifting. Therefore, the buoyancy-driven cable-finding method has poor controllability, low reliability in long-term use, and is very easy to cause jamming, resulting in failure of the lifting platform. Summary of the invention

[0008] The object of the present invention is to provide a deep-sea anchor chain winch device, which can realize controllable and stable lifting and lowering movement, and can maintain a good verticality underwater and withstand a large pulling force.

[0009] In order to achieve the purpose of the present invention, the following technical solution is provided: a deep-sea anchor chain winch device, comprising a device base fixed to the seabed and a floating mechanism placed on the device base;

[0010] The floating mechanism comprises an anchor chain locker with an anchor chain in its cavity and a floating body driving the anchor chain locker to float, the anchor chain locker is penetrated by a hollow rod arranged vertically with respect to the device base, an anchor chain channel communicating with both ends is arranged in the hollow rod, a chain outlet hole and an anchor chain wheel and a matching driving assembly are arranged on the top of the anchor chain locker for controlling the anchor chain to enter and exit the anchor chain locker, and the rotating shaft of the anchor chain wheel is arranged vertically with respect to the anchor chain channel in space;

[0011] One end of the anchor chain is fixed to the bottom of the anchor chain compartment, and the other end of the anchor chain is fixedly connected to the device base through the anchor chain channel of the hollow rod after leaving the anchor chain compartment.

[0012] The present invention drives the anchor chain wheel to pull the anchor chain to complete the lifting transmission through a motor, which can better realize the precise control of the lifting platform. Since the anchor chain has the characteristics of high strength and not easy to be knotted, the device driven by the anchor chain has better stability.

[0013] Specifically, the float is made of solid buoyancy material. The solid buoyancy material should have good pressure resistance, corrosion resistance and low temperature resistance under the premise of being able to stably provide the net buoyancy required by the device, and maintain good stability in a long-term marine environment working environment. At the same time, the shape of the buoyancy material should adopt a streamlined design and other relevant measures to reduce the impact of seawater flow on the stability of the device.

[0014] Specifically, the floating body is located on the top of the anchor chain compartment, and the center of gravity of the floating body is coaxially arranged with the axis of the hollow rod.

[0015] Specifically, the anchor chain compartment includes an outer shell body provided with a chain outlet hole and an inner groove body located in the outer shell body, the notch direction of the inner groove body corresponds to the position of the chain outlet hole of the outer shell body, and a self-rotation mechanism is provided between the bottom of the inner groove body and the outer shell body, so that the inner groove body rotates with the hollow rod as the rotation axis center.

[0016] Specifically, the self-rotating mechanism includes an inner cabin bottom roller located at the bottom of the inner trough body, and a rotating drive motor whose output end is coaxially arranged with the hollow rod. Through this winding method, the anchor chain can be wound around the center of the device, so that the device will not have obvious center of gravity shift during operation, thereby ensuring the overall stability of the device.

[0017] Specifically, the output speed of the rotary drive motor is consistent with the rotation speed of the anchor chain wheel.

[0018] Specifically, there are a plurality of rollers at the bottom of the inner cabin, and the plurality of rollers at the bottom of the inner cabin are arranged in an array around the hollow tube as the center.

[0019] Specifically, the openings at both ends of the anchor chain channel are chamfered.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The rotation mode is the anchor chain drive. When the lifting device is working, the inner cabin rotation drive motor rotates at a speed matching the lifting speed of the device, driving the inner cabin to rotate relative to the anchor chain cabin platform. At this time, after the anchor chain falls to the bottom of the inner cabin, it will rotate with the inner cabin, playing a coiling role. Through this coiling method, the anchor chain can be coiled around the center of the device, so that the device will not have obvious center of gravity deviation during operation, thereby ensuring the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a deep-sea anchor chain winch device provided in this embodiment;

[0023] Figure 2 A schematic diagram of the anchor chain and anchor chain wheel provided in this embodiment;

[0024] Figure 3 A cross-sectional view of the anchor chain locker provided for this embodiment;

[0025] In the figure, 1-1, floating body; 1-2, anchor chain wheel; 1-3, anchor chain wheel driving motor; 1-4, anchor chain compartment; 1-5, anchor chain; 1-6, device base; 2-1, outer shell; 2-2, inner tank body; 2-3, inner cabin bottom roller; 2-4, rotation driving motor. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1 and Figure 2 As shown, a deep-sea anchor chain winch device provided in this embodiment includes a device base 1-6 fixed on the seabed and a floating mechanism placed on the device base 1-6.

[0028] The floating mechanism includes an anchor chain compartment 1-4 with an anchor chain 1-5 in its cavity and a floating body 1-1 that drives the anchor chain compartment 1-4 to float, the anchor chain compartment 1-4 is penetrated by a hollow rod arranged vertically with the device base 1-6, the hollow rod is provided with an anchor chain channel connecting the two ends, and the top of the anchor chain compartment 1-4 is provided with a chain outlet hole and an anchor chain wheel 1-2 and a matching anchor chain wheel driving motor 1-3 for controlling the anchor chain 1-5 to enter and exit the anchor chain compartment 1-4, and the rotating shaft of the anchor chain wheel 1-2 is arranged vertically in space with the anchor chain channel.

[0029] One end of the anchor chain 1-5 is fixed to the bottom of the anchor chain compartment 1-4, and the other end of the anchor chain 1-5 is fixedly connected to the device base 1-6 through the anchor chain channel of the hollow rod after leaving the anchor chain compartment 1-4.

[0030] like Figure 3 As shown, the anchor chain compartment 1-4 includes an outer shell body 2-1 provided with a chain outlet hole and an inner slot body 2-2 located in the outer shell body 2-1, the slot direction of the inner slot body 2-2 corresponds to the position of the chain outlet hole of the outer shell body 2-1, and a self-rotation mechanism is provided between the bottom of the inner slot body 2-2 and the outer shell body 2-1, so that the inner slot body 2-2 rotates with the hollow rod as the rotation axis center.

[0031] The self-rotating mechanism includes an inner cabin bottom roller 2-3 located at the bottom of the inner tank body 2-2, and a rotating drive motor 2-4 whose output end is coaxially arranged with the hollow rod.

[0032] The float 1-1 is made of solid buoyancy material. The solid buoyancy material should have good pressure resistance, corrosion resistance and low temperature resistance under the premise of being able to stably provide the net buoyancy required by the device, and maintain good stability in a long-term marine environment working environment. At the same time, the shape of the buoyancy material should adopt a streamlined design and other relevant measures to reduce the impact of seawater flow on the stability of the device.

[0033] The design criteria for the structure proposed in the above embodiment are as follows:

[0034] Floating body: The net buoyancy that the floating body needs to provide must be greater than the gravity of other devices except the bottom counterweight, and reserve a large enough net buoyancy for the load that the device platform needs to carry. Since the motor drive mainly overcomes the net buoyancy of the device as a whole, the net buoyancy of the floating body should not be too large. The floating body should meet the conditions for long-term underwater operation.

[0035] Anchor chain: The anchor chain is the main transmission part of the device. The anchor chain can be selected according to the anchor chain model specified in the national standard GB / T 549-2017, and the maximum tension that the anchor chain may withstand during the movement of the device should be within the safe load of the anchor chain.

[0036] Anchor wheel: The anchor chain selected for the device can be designed according to the anchor wheel structure specified in the national standard CB / T 3179-2013. If the selected anchor chain is not the geared anchor chain specified in the national standard or there are other special requirements, the anchor wheel can be customized according to the selected anchor chain.

[0037] Motor: The rated output torque of the motor in the device should be greater than the maximum torque on the anchor chain wheel during the device movement, and the rated speed of the motor can meet the device movement speed requirements. At the same time, in order to achieve the device hovering underwater, the selected motor should have a braking function. Usually, a motor with a reducer should be selected.

[0038] Chain locker: The size of the chain locker used to store the anchor chain can be designed according to the calculation method in the ship design manual. The chain locker designed according to this criterion will not cause the chain to get tangled when the anchor chain is stored.

[0039] Bottom weight: The bottom weight needs to anchor the whole device, so the weight of the bottom weight should be significantly greater than the net buoyancy of the rest of the device. Considering the deployment and recovery of the device, the bottom weight should not be too heavy.

[0040] The lifting process of the device is as follows: the device is located underwater, and the floating material provides an upward lift for the overall lifting platform, and the lift is greater than the gravity of the lifting platform. The upper end of the anchor chain that runs through the center of the anchor chain compartment is meshed with the anchor chain wheel, and the lower end is connected to the base of the device. Under the action of the lift, the anchor chain will remain in a vertical state. The anchor chain wheel rotates under the drive of the motor, and the anchor chain will enter or leave the anchor chain compartment under the drive of the anchor chain wheel. When the anchor chain enters the anchor chain compartment, the length of the straightened anchor chain between the anchor chain wheel and the base becomes shorter, and the device sinks; conversely, the length of the anchor chain between the anchor chain wheel and the base becomes longer, and the device floats. The device can sink and float underwater through the form of anchor chain transmission, and because the movement of the anchor chain wheel can be accurately controlled by the motor and the anchor chain has high strength and small deformation, the device can achieve accurate control of the position and speed of the lifting platform.

[0041] When the lifting device is working, the inner cabin rotation drive motor rotates at a speed matching the lifting speed of the device, driving the inner cabin to rotate relative to the anchor chain cabin platform. At this time, after the anchor chain falls to the bottom of the inner cabin, it will rotate with the inner cabin, playing a coiling role. In this way, the anchor chain can be coiled around the center of the device, so that there will be no obvious center of gravity shift during the operation of the device, thereby ensuring the overall stability of the device.

[0042] The device provided in this embodiment is suitable for long-term underwater sports. The lifting platform provided by the device can be equipped with various detectors such as cameras, acoustic sensors, temperature sensors, etc. or carry underwater working equipment. Since the device has good stability and can hover at any depth underwater, the device can be used as an underwater observation device for exploration and monitoring of the waters where it is located, or for the transportation of underwater working equipment.

[0043] In addition, the terms "upper", "lower", "inner", "outer", "front", "rear" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Unless otherwise specifically stated, the relative steps, numerical expressions and values ​​of the components and steps described in these embodiments do not limit the scope of the present invention.

[0044] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. All equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

[0045] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A deep sea anchor chain winch device, characterized in that: It includes a device base fixed on the seabed and a floating mechanism placed on the device base; The floating mechanism comprises an anchor chain locker with an anchor chain in the cavity and a floating body driving the anchor chain locker to float, the anchor chain locker is penetrated by a hollow rod arranged vertically with the device base, an anchor chain channel connecting the two ends is arranged in the hollow rod, a chain outlet hole and an anchor chain wheel and a matching driving assembly are arranged on the top of the anchor chain locker for controlling the anchor chain to enter and exit the anchor chain locker, and the rotating shaft of the anchor chain wheel is arranged vertically with the anchor chain channel in space; The floating body is located on the top of the anchor chain locker, and the center of gravity of the floating body is coaxially arranged with the axis of the hollow rod; The anchor chain locker comprises an outer shell body provided with a chain outlet hole and an inner slot body located in the outer shell body, the slot direction of the inner slot body corresponds to the position of the chain outlet hole of the outer shell body, a self-rotating mechanism is provided between the bottom of the inner slot body and the outer shell body, so that the inner slot body rotates with the hollow rod as the rotation axis center, the self-rotating mechanism comprises an inner cabin bottom roller located at the bottom of the inner slot body, and a rotary drive motor whose output end is coaxially arranged with the hollow rod, and the output speed of the rotary drive motor is consistent with the rotation speed of the anchor chain wheel; One end of the anchor chain is fixed to the bottom of the anchor chain compartment, and the other end of the anchor chain is fixedly connected to the device base through the anchor chain channel of the hollow rod after leaving the anchor chain compartment.

2. The deep sea anchor chain winch device according to claim 1, characterized in that: The floating body is made of solid buoyancy material.

3. The deep sea anchor chain winch device according to claim 1, characterized in that: There are multiple rollers at the bottom of the inner cabin, and the multiple rollers at the bottom of the inner cabin are arranged in an array around the hollow tube as the center.

4. The deep sea anchor chain winch device according to claim 1, characterized in that: The openings at both ends of the anchor chain channel are chamfered.

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