Wind wave joint laboratory floating bottom lifting special winch

Abstract

The utility model discloses a wind wave combined laboratory floating bottom lifting special winch relates to deep sea test equipment technical field, including reel, and the outer periphery is provided with the symmetrical contrary spiral groove, provides the orderly winding space for steel wire rope, steel wire rope, in the perpendicular downward mode, from the reel, after the steering of double guide pulley group, is connected to the balance pulley below the floating bottom, the underwater section of steel wire rope adopts whole jointless structure, and both ends are directly fixed on the reel, winch support, the rotation axis of reel is installed on winch support through bearing, winch support adopts column leg support, and the back two column legs are hinge shaft mechanism, and the whole winch can rotate around the hinge shaft center, and the front two column legs are fixed on corresponding front base. The application greatly reduces the underwater steel wire rope connecting node and clamp quantity, reduces the influence of water quality corrosion, silt deposition to key components, reduces the failure risk and reduces the maintenance difficulty, guarantees long -term stable operation.

Description

Technical Field

[0001] This utility model relates to the field of deep-sea experimental equipment technology, specifically to a special winch for the floating bottom lifting and lowering of a joint wind and wave laboratory. Background Technology

[0002] In fields such as deep-sea equipment research and development and marine engineering technology verification, deep-sea test pools serve as key infrastructure for conducting model tests and performance assessments, and their operational performance directly affects the accuracy and reliability of test data. Among these components, the lifting and lowering buoy, as a core functional part of the pool, plays a crucial role in ensuring the validity of test results through its lifting accuracy, operational stability, and levelness control.

[0003] The operation of a floating buoy requires a drive device to achieve lifting and lowering actions and attitude adjustment. Currently, the industry mostly uses a winch as the core drive equipment, connecting the buoy and the drum through a wire rope, and controlling the rise and fall of the buoy by winding and unwinding the wire rope.

[0004] Traditional winches often employ a design using movable pulley blocks with fixed ends of wire ropes, resulting in numerous wire rope connection points and clamps underwater. These components are exposed to the water environment for extended periods, making them susceptible to water corrosion, sediment deposition, and other factors. This not only increases the risk of equipment failure but also significantly raises the difficulty of maintenance, making it difficult to meet the requirements for long-term stable operation.

[0005] Due to the considerable height of the deep-sea test pool, traditional winches are prone to slack and tangling during the wire rope winding and unwinding process. This problem not only reduces transmission efficiency but can also lead to safety hazards due to wire rope wear and derailment, severely shortening the equipment's lifespan and affecting the continuity and safety of the test.

[0006] Raising and lowering floating hulls typically requires the coordinated operation of multiple winches to achieve smooth lifting and lowering. Existing technologies often rely on simple mechanical transmissions or conventional speed regulation methods, making it difficult to accurately synchronize the speed and displacement of multiple winches. This lack of synchronization can easily lead to uneven force distribution during the lifting and lowering of the floating hull, causing problems such as tilting and swaying. In severe cases, it may damage the floating hull structure or interrupt the test process.

[0007] In summary, existing winches used for raising and lowering the floating bottom of deep-sea experimental pools have significant deficiencies in terms of structural design, operational stability, and synchronous control. Utility Model Content

[0008] The purpose of this invention is to provide a special winch for floating bottom lifting in the joint wind and wave laboratory, which effectively prevents the wire rope from becoming loose or tangled, eliminates the need for underwater clamps, reduces underwater failure points, lowers the maintenance difficulty caused by water corrosion and sediment deposition, and improves long-term operational stability.

[0009] To achieve the above objectives, the technical solution of this application is: a special winch for floating bottom lifting in the joint wind and wave laboratory, comprising:

[0010] The drum has symmetrical, opposite spiral grooves on its outer periphery to provide an orderly winding space for the wire rope;

[0011] The wire rope is drawn vertically downward from the drum, and after being turned by a double guide pulley group, it is connected to the balance pulley below the floating bottom. The underwater section of the wire rope adopts a whole jointless structure, with both ends directly fixed to the drum.

[0012] The winch support has a drum rotation shaft mounted on it via bearings. The winch support is supported by column legs, with the two rear columns forming a hinge mechanism, allowing the entire winch to rotate around the hinge center. The two front columns are fixed to the corresponding front base.

[0013] In a preferred embodiment of this utility model, the drum is connected to a variable frequency motor with brake via an open gear.

[0014] As a preferred embodiment of this utility model, the variable frequency motor with brake is equipped with an incremental rotary encoder.

[0015] As a preferred embodiment of this utility model, the variable frequency motor with brake is connected to the planetary reducer. The power output is first reduced by the planetary reducer, and then further reduced by the open gear before being transmitted to the drum.

[0016] As a preferred embodiment of this utility model, an absolute rotary encoder is provided at the end of the rotating shaft of the drum for real-time detection of the number of rotations of the drum.

[0017] As a preferred embodiment of this utility model, a column-type pressure load sensor is arranged between the front base and the column leg to monitor the tension of the wire rope in real time.

[0018] As a preferred embodiment of this utility model, the variable frequency motor, absolute rotary encoder and column pressure load sensor on each lifting and floating bottom winch are all electrically connected to the PLC controller. Through the PLC controller's regulation of motor speed and real-time analysis of sensor feedback data, the speed synchronization control of multiple winches and the dynamic adjustment of the floating bottom level can be realized.

[0019] As a preferred embodiment of this utility model, the special winch for lifting and floating bottoms is arranged on the side of the pool and erected on the wire rope well.

[0020] In a preferred embodiment of this utility model, the double guide pulley assembly is fixed to the bottom of the pool.

[0021] This invention, by adopting the above technical solution, achieves the following technical effects: The symmetrical, opposite-directional spiral grooves on the outer circumference of the drum provide an orderly winding space for the wire rope, fundamentally avoiding the slack and tangled rope phenomena commonly seen during the winding and unwinding of traditional winches, reducing wire rope wear and the risk of derailment, and extending the service life of the equipment. The underwater section of the wire rope adopts a seamless design, with both ends directly fixed to the drum, significantly reducing the number of underwater wire rope connection nodes and clamps, reducing the impact of water corrosion and sediment deposition on key components, reducing the risk of failure and lowering the difficulty of maintenance, ensuring long-term stable operation.

[0022] The variable frequency motor with brake is equipped with an incremental rotary encoder, and an absolute rotary encoder is installed at the end of the drum's rotating shaft. This dual real-time detection of the drum's rotation angle and the motor's operating status provides precise data support for lifting accuracy control. A column-type pressure load sensor positioned between the front base and the column legs can monitor the wire rope tension in real time, accurately capturing load changes at each tension point. In case of overload or underload anomalies, it can provide timely warning signals to the system, facilitating rapid protective measures and preventing equipment overload damage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 Side view of the special winch for the floating bottom lifting and lowering of the joint wind and wave laboratory;

[0025] Figure 2 Main view of the floating bottom lifting winch for the Joint Laboratory for Wind and Wave Research;

[0026] The numbers in the diagram are explained as follows: 1. Open gear; 2. Variable frequency motor with brake; 3. Planetary reducer; 4. Hinge mechanism; 5. Column-type pressure load sensor; 6. Wire rope; 7. Winch bracket; 8. Absolute rotary encoder. Detailed Implementation

[0027] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. 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.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] This wind and wave joint laboratory's specialized winch for raising and lowering floating bottoms is primarily used for the lifting, levitation, and attitude control of floating bottoms in deep-sea experimental pools. Its overall layout is situated along the pool's edge and mounted on a wire rope hoistway. This rational design adapts to the unique working conditions of deep-sea experimental pools, facilitating equipment installation, maintenance, and integration with the pool system. Multiple winches work in concert to achieve smooth raising and lowering of the floating bottom and leveling adjustment. The floating bottom rises using its own buoyancy and descends via the winch's wire rope pull. The lifting and lowering speed is precisely controlled by the winch's wire rope winding and unwinding speed. In a static state, the levelness of the floating bottom can be controlled by adjusting the wire rope tension of multiple winches, meeting the stringent requirements for surface flatness in deep-sea experiments.

[0035] Please see Figure 1-2 This embodiment provides a special winch for raising and lowering the floating bottom of a joint wind and wave laboratory, comprising:

[0036] The drum's rotating shaft is mounted on the winch support via bearings. Symmetrical, counter-directional helical grooves are formed on the outer circumference of the drum to provide an orderly winding space for the wire rope and prevent mutual interference during the winding process.

[0037] The wire rope is drawn vertically downwards from the drum, deflected by a double-guide pulley system fixed to the bottom of the pool, and then connected to a balance pulley below the floating bottom. The double-guide pulley system, through its optimized deflection design, ensures even force distribution on the wire rope. Combined with the effective height of at least 10m in the deep-sea test pool, the wire rope's own weight ensures reliable winding onto the drum, effectively preventing slack and tangling. Preferably, the underwater section of the wire rope uses a single, jointless structure, with both ends directly fixed to the double drums, eliminating the need for additional underwater wire rope clamps. By eliminating the traditional moving pulley system and the fixed end of the wire rope below the floating bottom, the underwater mechanisms are minimized, reducing the risk of failure due to water corrosion and sediment deposition, and improving the long-term operational reliability of the equipment.

[0038] The winch support adopts a four-column support configuration. The two rear columns are hinged, allowing the entire winch to rotate flexibly around the hinge center. The two front columns rest on their respective front bases, with column-type pressure load sensors positioned between the front bases and the front columns. Because the winch's center of gravity is located between the front and rear columns, and the wire rope exits vertically downwards, it ensures the winch will not tip backward. The front columns stably press against the column-type pressure load sensors, providing a precise structural foundation for tension detection. Preferably, each winch is equipped with two column-type pressure sensors, which display the wire rope tension at each pulling point in real time on the control panel, enabling load monitoring and protection of the winch's wire rope. When any sensor detects an overload or underload, the system immediately triggers an audible and visual alarm and stops all winch motors to prevent overload damage. Zeroing the load sensors accurately reflects the actual tension of the floating bottom on the wire rope.

[0039] The variable frequency motor with brake, serving as the core power source, is equipped with an incremental rotary encoder. It enables precise control of the output speed through variable frequency speed regulation, and its built-in braking function can quickly lock the power output in emergencies or during shutdown. The incremental rotary encoder provides real-time feedback of motor speed information, offering fundamental data support for the synchronized speed control of multiple winches.

[0040] The reduction mechanism employs a two-stage reduction scheme of "planetary reducer + open gear". A variable frequency motor with brake is connected to the planetary reducer, and the output end of the planetary reducer is connected to the pinion of the open gear. The large gear of the open gear is fixedly connected to the drum. The power transmission path is: variable frequency motor output power → planetary reducer first-stage reduction → open gear second-stage reduction → drum low-speed rotation. This reduction structure efficiently converts the high speed of the motor into the low-speed, high-torque required by the drum, ensuring stable and reliable power transmission.

[0041] In this embodiment, an absolute rotary encoder is installed at the end of the rotating shaft of each drum to detect the drum rotation angle in real time. The wire rope winding and unwinding length is directly obtained by converting the angle with the drum circumference, so as to realize the accurate detection and control of the floating bottom lifting stroke and provide key position feedback data for adjusting the floating bottom level and synchronizing the displacement of multiple winches.

[0042] Each specialized winch for raising and lowering the floating bottom has a variable frequency motor, an absolute rotary encoder, and a column-type pressure load sensor electrically connected to a PLC controller. The PLC controller, through precise control of the motor speed and real-time analysis of sensor feedback data, combined with speed feedback from the incremental rotary encoder, achieves synchronized speed and displacement control of multiple winches. Simultaneously, by adjusting the tension of the wire ropes of each winch, the horizontal level of the floating bottom is dynamically adjusted, ensuring a smooth and undulating process during raising and lowering, meeting the high-precision requirements for the floating bottom's attitude in deep-sea experiments.

[0043] The working process of the floating bottom lifting winch of the above-mentioned joint wind and wave laboratory is as follows:

[0044] When the floating bottom is raised or lowered, the PLC controller controls the variable frequency motors of multiple winches to run synchronously according to the set raising or lowering speed. The motor power drives the drum to rotate after being reduced by planetary reducer and open gear, realizing the raising and lowering of the wire rope. The floating bottom completes the raising and lowering under the action of the wire rope tension or its own buoyancy.

[0045] During the process, the incremental rotary encoder provides real-time feedback on the motor speed, while the absolute rotary encoder detects the drum travel. Based on this data, the PLC controller regulates multiple winches to maintain speed and displacement synchronization. The column-type pressure load sensor monitors the wire rope tension at each tension point in real time, and triggers an alarm and shuts down the machine immediately when an abnormal load is detected.

[0046] When statically adjusting the level of the floating bottom, the PLC controller controls the wire rope winding and unwinding length of each winch, and combines the tension data fed back by the load sensor to precisely adjust the height of each point on the floating bottom until the flatness requirements of the floating bottom surface are met.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A special winch for floating bottom lifting in the joint wind and wave laboratory, characterized in that, include: The drum has symmetrical, opposite spiral grooves on its outer periphery to provide an orderly winding space for the wire rope; The wire rope is drawn vertically downward from the drum, and after being turned by a double guide pulley group, it is connected to the balance pulley below the floating bottom. The underwater section of the wire rope adopts a whole jointless structure, with both ends directly fixed to the drum. The winch support has a drum rotation shaft mounted on it via bearings. The winch support is supported by column legs, with the two rear columns forming a hinge mechanism, allowing the entire winch to rotate around the hinge center. The two front columns are fixed to the corresponding front base.

2. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 1, characterized in that, The drum is connected to a variable frequency motor with brake via an open gear.

3. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 2, characterized in that, The variable frequency motor with brake is equipped with an incremental rotary encoder.

4. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 2, characterized in that, The variable frequency motor with brake is connected to the planetary reducer. Its output power is first reduced by the planetary reducer, and then further reduced by the open gear before being transmitted to the drum.

5. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 2, characterized in that, An absolute rotary encoder is provided at the end of the rotating shaft of the drum to detect the number of rotations of the drum in real time.

6. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 5, characterized in that, A column-type pressure load sensor is arranged between the front base and the column leg to monitor the tension of the wire rope in real time.

7. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 6, characterized in that, The variable frequency motor, absolute rotary encoder, and column pressure load sensor on each lifting and floating bottom winch are all electrically connected to the PLC controller.

8. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 1, characterized in that, The special winch for lifting and floating bottoms is arranged on the side of the pool and erected on the wire rope well.

9. The special winch for floating bottom lifting in the joint wind and wave laboratory according to claim 1, characterized in that, The double guide pulley assembly is fixed to the bottom of the pool.

Images