Underwater movement mechanism applied to ocean engineering deepwater experiment pool
By using a combination of detachable tracks and underwater trailers in the marine engineering experimental pool, the problem of high energy consumption in traditional flow generation systems has been solved, achieving efficient and stable simulation of marine environmental loads, reducing energy consumption and maintenance costs, and improving the flexibility and economy of the experiment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN UNIV OF TECH
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-21
AI Technical Summary
The existing flow generation systems in marine engineering experimental pools have high energy consumption, which increases the cost of testing. In addition, traditional systems rely on high-power water pumps or complex mechanical structures, resulting in high maintenance costs.
By employing a combination of detachable tracks and underwater trailers, the system simulates marine environmental loads through towing. Combined with the coordinated operation of a rising and lowering floating bottom, it achieves pump-free and multi-directional flow generation, reducing energy consumption and improving experimental flexibility.
It achieves efficient and stable simulation of marine environmental loads, reduces energy consumption and maintenance costs, improves the reliability and economy of experiments, has multi-functional testing capabilities, strong adaptability, and a wide range of applications.
Smart Images
Figure CN224146137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine engineering experimental technology, specifically to an underwater motion mechanism applied to a deep-water experimental pool in marine engineering. Background Technology
[0002] In the field of marine resource development, marine structures such as ships and offshore platforms must withstand the combined effects of multiple environmental loads, including wind, waves, and currents, during actual service. Due to the significant complexity and variability of the marine environment, coupled with insufficient engineering experience and technological accumulation, current performance research on marine structures still heavily relies on physical model tests in laboratory water tanks.
[0003] In experiments simulating the impact of marine environmental loads on structures, accurate simulation of environmental loads is a key technical challenge, with current generation technology being particularly crucial. Existing technologies primarily employ two current generation methods: external circulation current generation systems and internal vertical circulation current generation systems based on floating bottom structures. However, both of these approaches have significant limitations: existing current generation systems typically rely on high-power water pumps or complex mechanical structures, resulting in high energy consumption and a substantial increase in experimental costs. Utility Model Content
[0004] The purpose of this invention is to provide an underwater motion mechanism for use in deep-water experimental pools for marine engineering, which can efficiently and stably simulate marine environmental loads while reducing energy consumption and maintenance costs, thereby improving the reliability and economy of marine engineering experiments.
[0005] To achieve the above objectives, the technical solution of this application is: an underwater motion mechanism applied to a deep-water experimental pool in marine engineering, comprising:
[0006] Detachable rails connect to the laboratory's floating bottom.
[0007] The underwater trailer is equipped with a set of guide wheels at the bottom, which slides into a detachable track.
[0008] When conducting a pumpless flow generation test: the test model is placed on an underwater trailer and moved along a detachable track to achieve pumpless flow generation.
[0009] When conducting pumpless oblique and lateral flow generation tests: adjust the detachable track to be oblique or lateral, place the test model on the underwater trailer, and move it along the detachable track to achieve pumpless oblique and lateral flow generation.
[0010] As a preferred embodiment of this utility model, when conducting a lateral current generation test: the current generation device is fixed on the lifting floating bottom on one side of the underwater trailer, and the test model is placed on the underwater trailer and moved along the detachable track to achieve lateral current generation.
[0011] As a preferred embodiment of this utility model, when conducting a positive flow generation test: a portion of the detachable track is removed, the test model is fixed to the lifting floating bottom, and the water pump is placed on an underwater trailer, which moves along the detachable track to generate flow directly in front of the test model. This method is used to achieve positive flow generation.
[0012] As a preferred embodiment of this utility model, when conducting the countercurrent generation test, a dual underwater trailer cooperative operation mode is adopted, with the test model placed on one trailer and the water pump placed on the other trailer. The two trailers move in opposite directions along a detachable track to achieve countercurrent generation.
[0013] As a preferred embodiment of this utility model, when conducting a dual-device dual-model lateral current generation test: two identical underwater motion mechanisms are installed on a floating bottom, the current generation device is fixed on the floating bottom on the side of one of the underwater trailers, and the test models are placed on the corresponding underwater trailers. During the test, the two trailers move synchronously along the track, and the lateral flow field generated by the current generation device directly acts on the test model. This is how the dual-device dual-model lateral current generation test is achieved.
[0014] As a preferred embodiment of this utility model, when conducting a single-device dual-model lateral flow generation test: the flow generation device is fixed on a lifting floating bottom on one side of an underwater trailer, two underwater trailers are installed on a detachable track, and the test models are placed on the corresponding underwater trailers. During the test, the two trailers move synchronously along the track, and the lateral flow field generated by the flow generation device directly acts on the test model. This method is used to realize the single-device dual-model lateral flow generation test.
[0015] As a preferred embodiment of this utility model, when conducting an enhanced current generation test: the test model is placed on an underwater trailer, the current generation device is fixed to a detachable track, and current generation is performed directly on the test model to achieve enhanced current generation.
[0016] As a preferred embodiment of this utility model, it also includes:
[0017] The underwater drag chain is fixed at one end to the underwater trailer and connected to the power adapter box at the other end. It integrates power cables and signal lines to provide power to the underwater trailer and transmit data.
[0018] As a preferred embodiment of this utility model, the power adapter box is fixed to the side wall of the pool or the floating bottom structure, and is connected to the external power supply and control system through a waterproof connector. At the same time, it is connected to the power supply cable and signal line in the underwater tow chain to realize remote power supply and control of the trailer.
[0019] As a preferred embodiment of this utility model, the underwater trailer includes:
[0020] The submersible motor, as a power source, has its output shaft rigidly connected to the input shaft of the underwater reducer via a coupling;
[0021] The underwater reducer has its output shaft connected to the drive gear via a key, and the driven gear is fixedly connected to the wheel via an axle.
[0022] By adopting the above technical solution, this utility model can achieve the following technical effects:
[0023] 1. It adopts a simple and reliable structural design, which is convenient to maintain and easy to upgrade and modify, effectively extending the service life of the equipment and reducing maintenance costs;
[0024] 2. It features detachability, mobility, and rotatability, minimizing interference with other experimental equipment and exhibiting strong adaptability;
[0025] 3. Compared with traditional integrated flow generation systems, this device has a lower cost, lower energy consumption, and significantly improved operating economy;
[0026] 4. By using a towed movement method in conjunction with a rising and lowering floating bottom, it can flexibly simulate complex water flow environments with different water depths, flow velocities, and flow directions;
[0027] 5. It has multi-functional testing capabilities, supporting pumpless flow generation tests, pumpless lateral / oblique flow generation tests, side flow generation tests, dual-device dual-model side flow generation tests, single-device dual-model side flow generation tests, forward flow generation tests, enhanced flow generation tests, and counter-flow generation tests;
[0028] 6. It can carry experimental models to achieve relative flow generation, meet diverse experimental needs, and has a wide range of applications. Attached Figure Description
[0029] 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.
[0030] Figure 1 This is a schematic diagram of an underwater motion mechanism used in a deep-water experimental pool for marine engineering.
[0031] Figure 2 This is a schematic diagram of the underwater trailer structure.
[0032] Figure 3A layout diagram of a current-generating mechanism for an underwater motion system used in a deep-water experimental pool for marine engineering.
[0033] The numbers in the diagram are explained as follows: 1-1 Detachable track, 1-2 Underwater drag chain and cable, 1-3 Underwater trailer, 1-4 Power adapter box; 2-1 Wheels, 2-2 Submersible motor, 2-3 Underwater reducer, 2-4 Drive gear. Detailed Implementation
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] Example 1
[0042] like Figure 1 As shown, this embodiment provides an underwater motion mechanism applied to a deep-water experimental pool in marine engineering, comprising:
[0043] The detachable track is fixedly connected to the laboratory's lifting and floating bottom structure by high-strength bolts to ensure the stability of the track during underwater operation; preferably, the detachable track is equipped with vehicle stops at both ends to prevent the trailer from exceeding its travel range, and is equipped with underwater buffers (such as hydraulic or rubber buffer mechanisms) to absorb the impact energy during trailer braking or collision.
[0044] The underwater trailer is equipped with a set of guide wheels at its bottom, which slides into a detachable track to enable precise movement of the trailer along the track;
[0045] The underwater cable chain is fixed to the trailer at one end and connected to the power adapter box at the other end. It integrates power cables and signal lines to provide power to the underwater trailer and transmit data. The underwater cable chain adopts a waterproof and sealed design to ensure long-term reliability in deep water environments.
[0046] The power adapter box is fixed to the side wall of the pool or the floating bottom structure. It is connected to the external power supply and control system through a waterproof connector, and at the same time, it is connected to the cables and signal lines in the underwater towing chain to realize remote power supply and control of the trailer.
[0047] like Figure 2 As shown, the underwater trailer includes:
[0048] Submersible motors, as power sources, can be frequency converters, with speed adjustments as needed; their output shafts are rigidly connected to the input shaft of the underwater reducer via a coupling.
[0049] The underwater reducer has an output shaft that drives the drive gear via a key connection, and the driven gear is fixedly connected to the wheel via an axle. An underwater bearing is installed between the wheel and the axle.
[0050] The aforementioned submersible motor and underwater reducer are securely connected to the vehicle body base via a set of positioning bolts.
[0051] Example 2
[0052] like Figure 3 As shown, this embodiment provides a current-generating method for an underwater motion mechanism applied to a deep-water experimental pool in marine engineering, including:
[0053] 1. Pump-free flow generation test: The test model is fixedly mounted on an underwater trailer, which moves along a track. The relative motion between the trailer and the water body generates a flow field, thus achieving pump-free flow generation. Figure 3 As shown in a.
[0054] 2. Pump-free oblique and lateral flow generation tests: Based on test requirements, the track of the underwater multi-functional flow-generating trailer is disassembled, reassembled, or extended, and the track layout is adjusted to be oblique or lateral. The test model is fixedly mounted on the underwater trailer, and the trailer moves along the adjusted track direction to achieve pump-free oblique or lateral flow generation. Figure 3 As shown in b.
[0055] 3. Lateral Current Generation Test: The current generation device is fixedly installed on one side of the underwater multi-functional current generation trailer, and the test model is fixedly installed on the underwater trailer. During the test, the trailer is driven to move along the track, and the laterally installed current generation device is activated simultaneously, aligning the current generation direction with one side of the trailer. This method achieves lateral current generation. Figure 3 As shown in c.
[0056] 4. Dual-device, dual-model lateral current generation test: Two identical underwater multi-functional current generation trailers are fixed parallel to each other on a floating buoy. A current generation device is fixedly installed on one side of one trailer, and the test model is fixedly installed on the other trailer. During the test, both trailers are driven synchronously along a track. The lateral flow field generated by the current generation device acts on the test model, thus achieving dual-vehicle, dual-model lateral current generation. Figure 3 As shown in d.
[0057] 5. Single-device dual-model lateral current generation test: The current generation device is fixedly installed on one side of the underwater multi-functional current generation trailer. Two underwater trailers are mounted on the same track, and two test models are fixedly installed on these two trailers respectively. During the test, the two trailers are driven synchronously to move along the track. The lateral flow field generated by the current generation device acts on both test models simultaneously. This method realizes the single-device dual-model lateral current generation test. Figure 3 As shown in e.
[0058] 6. Forward Flow Generation Test: Remove the rear half of the track and fix the test model on the floating bottom. Mount the water pump on an underwater trailer and drive the trailer along the remaining track, so that the water pump directly faces the test model to generate a flow field. This method achieves forward flow generation. Figure 3 As shown in f.
[0059] 7. Enhanced Flow Generation Test: The test model is fixedly mounted on an underwater trailer, while a flow generation device is fixedly installed on a track. During the test, the trailer carrying the model is moved while the fixed flow generation device is activated, so that it directly faces the moving test model to generate a superimposed flow field. This method enhances flow generation. Figure 3 As shown in g.
[0060] 8. Countercurrent Generation Test: Two underwater trailers are mounted on a track. One trailer carries the test model, and the other carries a water pump. During the test, the two trailers are driven to move towards each other along the track, so that the flow field generated by the water pump is opposite to the direction of the model's movement. This achieves countercurrent generation. Figure 3 As shown in h.
[0061] 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. An underwater moving mechanism applied to a deep water experimental pool of ocean engineering, characterized in that, include: Detachable rails connect to the laboratory's floating bottom. The underwater trailer is equipped with a set of guide wheels at the bottom, which slides into a detachable track. When conducting a pumpless flow generation test: place the test model on an underwater trailer and move it along a detachable track; When conducting pumpless oblique or transverse flow generation tests: adjust the detachable track to be oblique or transverse, place the test model on the underwater trailer, and move it along the detachable track.
2. The underwater motion mechanism applied to the deep water experimental pool of ocean engineering according to claim 1, characterized in that, When conducting a lateral current-generating test: fix the current-generating device on the lifting buoy on one side of the underwater trailer, place the test model on the underwater trailer, and move it along the detachable track.
3. The underwater motion mechanism applied to the deep water experimental pool of ocean engineering according to claim 1, characterized in that, When conducting a positive current generation test: remove part of the detachable track, fix the test model to the lifting floating bottom, place the water pump on the underwater trailer, and move it along the detachable track to generate current directly in front of the test model.
4. The underwater motion mechanism applied to the deep water experimental pool of ocean engineering according to claim 1, characterized in that, When conducting the countercurrent generation test: a dual underwater trailer cooperative operation mode is adopted, with the test model placed on one trailer and the water pump placed on the other trailer, and the two moving in opposite directions along a detachable track.
5. The underwater motion mechanism applied to the deep water experimental pool of ocean engineering according to claim 1, characterized in that, When conducting a dual-device, dual-model lateral flow generation test: two identical underwater motion mechanisms are installed on a floating bottom, and the flow generation device is fixed on the floating bottom on the side of one of the underwater trailers. The test models are placed on the corresponding underwater trailers. During the test, the two trailers move synchronously along the track, and the lateral flow field generated by the flow generation device directly acts on the test model.
6. The underwater motion mechanism applied to the deep water experimental pool of ocean engineering according to claim 1, characterized in that, When conducting a single-device dual-model lateral flow generation test: the flow generation device is fixed on the lifting floating bottom on one side of the underwater trailer, and two underwater trailers are installed on the detachable track. The test model is placed on the corresponding underwater trailer. During the test, the two trailers move synchronously along the track, and the lateral flow field generated by the flow generation device directly acts on the test model.
7. The underwater motion mechanism for use in a deep water experimental tank for ocean engineering according to claim 1, wherein When conducting enhanced current generation tests: the test model is placed on an underwater trailer, the current generation device is fixed to a detachable track, and current generation is performed directly on the test model.
8. The underwater motion mechanism applied to the deep water experimental pool of ocean engineering according to claim 1, characterized in that, Also includes: The underwater towing chain is fixed at one end to the underwater trailer and connected to the power adapter box at the other end. It integrates power cables and signal lines to provide power to the underwater trailer and transmit data.
9. The underwater motion mechanism for use in a deep water tank for marine engineering according to claim 8, wherein, The power adapter box is fixed to the side wall of the pool or the floating bottom structure. It is connected to the external power supply and control system through a waterproof connector, and is also connected to the power supply cable and signal line in the underwater tow chain to realize remote power supply and control of the trailer.
10. The underwater motion mechanism for use in a deep water experimental tank for ocean engineering according to claim 1, wherein, The underwater trailer includes: The submersible motor, as a power source, has its output shaft rigidly connected to the input shaft of the underwater reducer via a coupling; The underwater reducer has its output shaft connected to the drive gear via a key, and the driven gear is fixedly connected to the wheel via an axle.