Pressure simulation test device for buoyancy adjusting unit of underwater vehicle

Abstract

The utility model discloses a pressure simulation testing device for a buoyancy adjusting unit of an underwater vehicle, which belongs to the technical field of underwater vehicle testing equipment and comprises a connecting valve block, a proportional electromagnetic valve and an oil storage tank which are sequentially communicated to form a testing pipeline. The proportional electromagnetic valve and the pressure sensor are connected with a controller, the pressure sensor sends oil pressure information to the controller, and the controller sends control information to the proportional electromagnetic valve. The application of the device not only improves the convenience, accuracy and efficiency of the test work, but also provides an economical, feasible and easy-to-popularize test scheme for the buoyancy system of the underwater vehicle.

Description

Technical Field

[0001] This utility model belongs to the technical field of underwater vehicle testing equipment, and in particular relates to a pressure simulation testing device for the buoyancy adjustment unit of an underwater vehicle. Background Technology

[0002] The buoyancy system is a critical component of an underwater vehicle, directly affecting its stability and reliability in high-pressure underwater environments. This system primarily achieves dynamic control of buoyancy and attitude by adjusting the volume of hydraulic oil within the external oil bladder. When the underwater vehicle is at different depths or performing specific tasks, the buoyancy system can precisely increase or decrease the volume of hydraulic oil, thereby adjusting the vehicle's buoyancy to maintain the required depth, attitude, and motion state in complex underwater environments. Due to the high-pressure characteristics of the underwater environment, the buoyancy system design must ensure sealing and pressure resistance to prevent hydraulic oil leakage or system failure, thus guaranteeing the long-term stable operation of the vehicle. Furthermore, the buoyancy system's response speed and adjustment accuracy also significantly impact the vehicle's maneuverability and mission execution capabilities. Therefore, the system design must fully consider the flow characteristics of the hydraulic oil, control strategies, and the pressure resistance of the materials to ensure stable and reliable operation under various underwater conditions.

[0003] Current testing methods for underwater vehicle buoyancy systems suffer from numerous drawbacks and shortcomings, primarily manifested in high testing costs, stringent site requirements, poor equipment portability, and wasted human resources. Firstly, existing methods require transporting the entire buoyancy system to the testing site, involving multiple stages such as vehicle transportation, site rental, and equipment installation, resulting in significant time and economic costs. Secondly, the testing equipment has stringent site requirements, necessitating not only sufficient space to accommodate the entire system but also excavation to place the pressure tank, limiting the choice of testing sites and reducing flexibility. Furthermore, existing testing equipment is fixed and lacks portability, hindering flexible testing in different locations and limiting the convenience and efficiency of testing. Finally, during testing, personnel must remain by the equipment for extended periods to monitor its operation and manually record data. While acceptable for short tests, this becomes excessively labor-intensive and inefficient when testing a large number of groups or for extended periods. Therefore, existing testing methods suffer from high costs, poor site adaptability, immobile equipment, and excessive human resource consumption, necessitating urgent improvement. Utility Model Content

[0004] To address the problems of high cost, strict site requirements, poor equipment portability, and waste of human resources in current testing methods for underwater vehicle buoyancy systems, this utility model provides a pressure simulation testing device for the buoyancy adjustment unit of an underwater vehicle.

[0005] This utility model is implemented as follows: a pressure simulation test device for the buoyancy adjustment unit of an underwater vehicle, characterized in that: it includes a connecting valve block, a proportional solenoid valve and an oil tank connected in sequence to form a test pipeline, a pressure sensor is provided in the test pipeline, the proportional solenoid valve and the pressure sensor are connected to a controller, the pressure sensor sends oil pressure information to the controller, and the controller sends control information to the proportional solenoid valve.

[0006] In the above technical solution, preferably, the connecting valve block is provided with an oil discharge inlet and an oil discharge outlet. The oil discharge inlet is connected to the oil discharge port of the buoyancy adjustment unit, and the oil discharge outlet is connected to the oil storage tank through an oil discharge test pipeline. The proportional solenoid valve is connected in series with the oil discharge test pipeline and controls the oil delivery opening of the test pipeline.

[0007] In the above technical solution, preferably, the connecting valve block, the proportional solenoid valve, and the pressure sensor are connected to form a connector assembly, and the proportional solenoid valve is connected to the oil storage tank through a flexible pipe.

[0008] In the above technical solution, preferably, a bracket is included, the bracket including a flange chuck for fixing the buoyancy adjustment unit.

[0009] The pressure simulation and automatic testing device for the buoyancy adjustment unit of an underwater vehicle proposed in this patent application has many advantages and significant effects, mainly reflected in the following aspects:

[0010] First, this device overcomes the limitations of traditional pressure testing equipment by being immobile. Its portable design makes it smaller and lighter, allowing for flexible deployment in various locations, greatly improving testing convenience and flexibility, and reducing reliance on specific testing sites. Second, the use of this device significantly reduces the manpower, material, and financial resources required for testing, avoiding cumbersome equipment transportation, installation, and site preparation work, thus significantly reducing testing time and economic costs. Third, the testing process is highly automated. Testers only need to set parameters via a host computer, and the controller precisely controls the electromagnetic proportional valve to apply load to the end of the buoyancy drive unit and automatically executes the test according to preset parameters, ensuring the accuracy and consistency of the testing process, reducing errors caused by human intervention, and improving testing reliability. Fourth, this device can simulate pressure conditions in underwater environments at different depths and dynamically adjust the test pressure to comprehensively verify the oil discharge performance of the buoyancy drive unit under different operating conditions, ensuring the stability and reliability of the system in practical applications. Finally, due to its compact structure and simple operation, testers do not need to be on-site for extended periods, enabling them to complete more testing tasks in a shorter time, effectively improving testing efficiency and optimizing human resource allocation. Therefore, the application of this device not only improves the convenience, accuracy and efficiency of testing, but also provides an economical, feasible and easy-to-promote testing solution for the buoyancy system of underwater vehicles. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the support structure in this utility model. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0014] To address the problems of high cost, stringent site requirements, poor equipment portability, and wasted human resources in current testing methods for underwater vehicle buoyancy systems, this invention provides a pressure simulation testing device for the buoyancy adjustment unit of an underwater vehicle. To further illustrate the structure of this invention, a detailed description is provided below in conjunction with the accompanying drawings:

[0015] Please see Figure 1A pressure simulation testing device for an underwater vehicle buoyancy adjustment unit includes a connecting valve block 1, a proportional solenoid valve 2, and an oil storage tank 3 connected in sequence to form a test pipeline. Specifically, the connecting valve block has an oil discharge inlet and an oil discharge outlet. The oil discharge inlet is connected to the oil discharge port of the buoyancy adjustment unit 4, and the oil discharge outlet is connected to the oil storage tank through the oil discharge test pipeline. The proportional solenoid valve is connected in series in the oil discharge test pipeline and controls the oil delivery opening of the test pipeline.

[0016] The test pipeline is equipped with a pressure sensor 5. The proportional solenoid valve and the pressure sensor are connected to the controller 6. The pressure sensor sends oil pressure information to the controller, and the controller sends control information to the proportional solenoid valve.

[0017] In this embodiment, a bracket 7 is included, which includes a flange chuck 7-1 for fixing the buoyancy adjustment unit. A connecting valve block, a proportional solenoid valve, and a pressure sensor are connected to form a connector assembly. The proportional solenoid valve is connected to the oil storage tank via a flexible pipe. Furthermore, the connecting valve block is connected to a pressure gauge and a flow meter for displaying the liquid flow rate in the test pipeline.

[0018] This pressure simulation testing device uses a connecting valve block to connect an external oil storage tank at the end of the buoyancy drive unit of the underwater vehicle. The test pipeline is equipped with a pressure sensor, a proportional solenoid valve, a pressure gauge, and a flow meter. By adjusting the opening of the proportional solenoid valve, an oil discharge load is applied to the end of the buoyancy drive unit of the underwater vehicle under test, verifying its oil discharge performance under different pressures. During testing, the tester sets different pressures using the host computer software. The controller, acting as the main control module, adjusts the opening of the proportional solenoid valve according to the pressure set by the tester, automatically initiating the test once the pressure in the test pipeline reaches the set pressure. Pressure, flow rate, and other information during the test are transmitted to the test pipeline via the pressure sensor and flow meter. The electrical connection diagram is shown below. Figure 2 As shown, the main controller connects to the host computer via a serial port for signal transmission. The main controller also needs to connect to peripheral devices such as flow meters, pressure sensors, proportional solenoid valves, primary pumps, and advanced pumps. Signals detected by these peripheral devices are transmitted to the main controller, which processes and judges the signals before proceeding to the next step. Simultaneously, the main controller also collects the operating voltage and current of the acquisition devices to determine the system's operating status.

[0019] To simulate the working environment of the buoyancy drive unit of an underwater vehicle and make the test results more closely resemble real-world conditions, please refer to this embodiment. Figure 2The upper part of the support frame is equipped with a ring frame 7-2. The two sides of the ring frame are mounted to the support body via X-axis 7-3. The support body is equipped with an X-drive motor 7-4 that drives the X-axis rotation. The X-drive motor drives the ring frame to rotate around the X-axis. A flange chuck is located inside the ring frame, and its two sides are mounted to the ring frame via Y-axis 7-5. The ring frame is equipped with a Y-axis drive motor 7-6 that drives the Y-axis rotation. The Y-axis drive motor drives the flange chuck to rotate around the Y-axis. The X-axis and Y-axis are perpendicular. The flange of the underwater vehicle's buoyancy drive unit is bolted to the flange chuck. The oil drain inlet of the connecting valve block is connected to the oil drain port of the underwater vehicle's buoyancy drive unit through a sealing joint. The working angle of the underwater vehicle's buoyancy drive unit can be adjusted using the X-axis and Y-axis drive motors to simulate the working environment of the underwater vehicle's buoyancy drive unit.

[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure simulation test device for a buoyancy adjustment unit of an underwater vehicle, characterized by: The test pipeline is formed by connecting valve block, proportional electromagnetic valve and oil tank in sequence, the test pipeline is provided with pressure sensor, the proportional electromagnetic valve and pressure sensor are connected with controller, the pressure sensor sends oil pressure information to the controller, and the controller sends control information to the proportional electromagnetic valve.

2. The pressure simulation test device for a buoyancy adjustment unit of an underwater vehicle according to claim 1, characterized in that: The connecting valve block is provided with oil discharge inlet and oil discharge outlet, the oil discharge inlet is connected with the oil discharge port of the buoyancy adjusting unit, the oil discharge outlet is communicated with the oil tank through the oil discharge test pipeline, the proportional electromagnetic valve is connected in series in the oil discharge test pipeline and controls the oil delivery opening of the test pipeline.

3. The pressure simulation test device for a buoyancy adjustment unit of an underwater vehicle according to claim 1, characterized in that: The connecting valve block, proportional electromagnetic valve and pressure sensor are connected to form joint assembly, the proportional electromagnetic valve is connected with the oil tank through flexible pipe.

4. The pressure simulation test device for a buoyancy adjustment unit of an underwater vehicle according to claim 1, characterized in that: The bracket includes flange chuck for fixing the buoyancy adjusting unit.

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