Buoyancy adjusting device of integrated communication antenna for underwater vehicle
By integrating the buoyancy adjustment device of the communication antenna in the underwater vehicle, the plunger drive mechanism is used to realize the adaptive adjustment of the buoyancy and communication antenna, the problems of hydraulic system pollution and communication instability are solved, and signal strength and system reliability are improved. , reducing maintenance costs and environmental pollution risks.
Patent Information
- Application Number
- CN202421187184.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The buoyancy adjustment devices of existing underwater vehicles have problems with the pollution of the hydraulic system and the high maintenance costs. At the same time, the communication signals are unstable in the marine environment and are difficult to adjust flexibly to achieve the best results.
A buoyancy adjustment device integrating communication antenna is designed, using plunger and plunger driving mechanism to achieve buoyancy adjustment. The communication antenna assembly adjusts the height through axial movement, combining the flow cover and pressure-resistant housing to achieve tight buoyancy and communication. Integration avoids the use of hydraulic systems.
The device improves the strength and stability of communication signals, reduces maintenance costs and environmental pollution risks, and provides a simple structure, low cost and environmentally friendly solution suitable for different underwater environments.
Smart Images
Figure CN222310894U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of underwater vehicles, and in particular relates to a buoyancy regulating device with an integrated communication antenna for an underwater vehicle and the underwater vehicle. Background Art
[0002] Underwater vehicles are a type of unmanned submersible designed to perform various tasks in underwater environments. They usually use advanced engineering technology and materials, have autonomous drive and control systems, and are able to perform tasks such as navigation, surveying, scientific research, and resource development underwater. Underwater vehicles vary in form and function. Some are designed to track marine life and collect marine data, while others are used for tasks such as seabed exploration, oil and gas pipeline inspections, and underwater archaeology. They are usually equipped with various sensors, cameras, detection equipment, and communication systems to acquire and transmit data in real time. The development of underwater vehicles plays an important role in the fields of marine scientific research, marine resource exploration, and environmental monitoring, and provides important means and support for humans to have a deeper understanding of the ocean world. However, there are some defects and deficiencies in its buoyancy adjustment system and communication structure that cannot be fully solved by existing technologies.
[0003] First, the existing underwater vehicle buoyancy adjustment devices mostly use hydraulic systems, which adjust the buoyancy by adjusting the flow of hydraulic oil through an oil pump. However, this design has some obvious shortcomings. First, the hydraulic system requires a large amount of hydraulic oil as a medium, and the leakage of hydraulic oil may cause serious pollution to the marine environment, thereby limiting the testing and application of underwater vehicles in the marine environment. Secondly, the hydraulic system has a complex structure, high maintenance cost, and is easily affected by the external environment. For example, under extreme marine conditions, the stability and reliability of the hydraulic system may be challenged.
[0004] Secondly, there are also some problems with the communication system of underwater vehicles. The communication antenna is usually set on the deflector, and during the surface communication stage, the height of the communication antenna out of the water directly affects the strength of the communication signal. The higher the height out of the water, the stronger the communication signal and the higher the probability of successful communication. However, the existing communication structure has some limitations. First, the position of the communication antenna is limited by the structure of the underwater vehicle, and it is difficult to flexibly adjust it to obtain the best communication effect. Secondly, due to the complexity of the marine environment, the communication signal is often easily affected by factors such as water flow and water temperature, resulting in unstable communication quality or even communication interruption.
[0005] In view of the above problems, it is necessary to design a new buoyancy adjustment structure to solve the problems of environmental pollution and high maintenance cost existing in the hydraulic system in the prior art, and to improve the communication efficiency of underwater vehicles. Utility Model Content
[0006] In view of the problems existing in the prior art, the utility model provides a buoyancy adjustment device for an underwater vehicle with an integrated communication antenna to solve the problems of the current hydraulic system of underwater vehicles polluting the environment, high maintenance costs, and communication efficiency that needs to be optimized.
[0007] The utility model is implemented as follows: a buoyancy regulating device with an integrated communication antenna for an underwater vehicle, comprising a pressure-resistant shell, a sealing end cover, a fairing and a communication antenna assembly, wherein the sealing end cover is arranged at the front end of the pressure-resistant shell, and the fairing is installed at the front of the pressure-resistant shell, and is characterized in that: it also includes a buoyancy regulating unit, and the buoyancy regulating unit includes a plunger and a plunger driving mechanism, the plunger is equipped with the sealing end cover and forms a sealing piston structure for axial movement of the plunger, the plunger driving mechanism is installed in the pressure-resistant shell, and the plunger driving mechanism is connected to and drives the plunger; the communication antenna assembly is arranged outside the pressure-resistant shell and installed on the plunger.
[0008] In the above technical solution, preferably, the plunger driving mechanism includes a driving motor and a trapezoidal lead screw driven by the driving motor, the trapezoidal lead screw is equipped with a lead screw nut, and the lead screw nut is connected to the plunger.
[0009] In the above technical solution, preferably, the drive motor and the trapezoidal lead screw are connected via a coupling, and the trapezoidal lead screw is installed inside the pressure-resistant housing via a rolling bearing and a thrust bearing.
[0010] In the above technical solution, preferably, a plunger guide fixing frame is installed inside the pressure-resistant shell, two sides of the plunger guide fixing frame form guide grooves, and two sides of the plunger are installed with sliders adapted to the guide grooves.
[0011] Advantages and effects
[0012] 1. Integrated design of buoyancy adjustment and communication antenna: The device integrates the buoyancy unit and the communication antenna assembly, and drives the communication antenna assembly to move axially through the piston mechanism, thereby changing the center of gravity of the underwater vehicle to adjust the buoyancy. This integrated design allows the communication antenna to be extended and retracted while the underwater vehicle is adjusting its buoyancy, providing a compact and efficient structural design.
[0013] 2. Adaptive adjustment of the height of the communication antenna: When communicating on the water surface, the buoyancy of the buoyancy unit is increased, and the communication antenna assembly extends outward, thereby increasing the height of the communication antenna. This adaptive adjustment enables the communication antenna to better adapt to the surface communication environment, improves the strength and stability of the communication signal, and thus enhances the reliability of communication.
[0014] 3. Simple structure and low cost: The buoyancy unit adopts a design that drives the reciprocating motion of the plunger, which has a simple structure and low cost. Compared with the traditional hydraulic system, this design does not need to use oil as a medium, which greatly reduces the complexity and maintenance cost of the system, and also reduces the risk of environmental pollution.
[0015] 4. No oil medium, environmentally friendly: Since the buoyancy regulating device does not need to use oil as a medium, it reduces the risk of water pollution, making the application of underwater vehicles in the marine environment more environmentally friendly. This has positive significance for the protection of marine ecology and the sustainable development of marine scientific research.
[0016] 5. Diversified sources of driving force: The device provides driving force for the underwater vehicle to float and sink through the reciprocating motion of the piston mechanism. This design makes the driving force source more diversified. Compared with the traditional hydraulic system, this design is more flexible and can adapt to the needs of different underwater environments, improving the applicability and reliability of underwater vehicles.
[0017] In summary, the buoyancy adjustment device with integrated communication antenna for underwater vehicles has many advantages such as compact structure, adaptive adjustment of communication antenna, environmental protection and energy saving, etc. It provides an efficient and reliable solution for the communication and buoyancy adjustment of underwater vehicles, and is expected to promote the advancement of underwater vehicle technology and the expansion of its application scope. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the external structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0020] Figure 3 It is a cross-sectional view of the internal structure of the utility model;
[0021] Figure 4 yes Figure 3 Enlarged view of part A. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0023] In order to solve the problems of the current underwater vehicle hydraulic system polluting the environment, high maintenance costs, and communication efficiency to be optimized, the utility model provides a buoyancy adjustment device for underwater vehicles with an integrated communication antenna. The buoyancy adjustment device for underwater vehicles with an integrated communication antenna has the advantages of simple structure, low cost, environmental friendliness, and improved communication signal strength. In order to further illustrate the structure of the utility model, the detailed description is as follows in conjunction with the attached drawings:
[0024] Embodiment 1
[0025] See also Figure 1-Figure 4 A buoyancy regulating device with an integrated communication antenna for an underwater vehicle comprises a pressure-resistant shell 1, a sealing end cover 4, a buoyancy regulating unit 3, a fairing 2, a communication antenna assembly 5, a plunger and a plunger driving mechanism.
[0026] A sealed pressure-resistant chamber is formed inside the pressure-resistant shell, a sealing end cover is arranged at the front end of the pressure-resistant shell, and a fairing is installed at the front of the pressure-resistant shell. In this embodiment, the pressure-resistant shell is made of aluminum alloy, and the pressure-resistant shell and the sealing end cover are radially sealed and tightly connected to form a pressure-resistant chamber and protect the buoyancy unit. The fairing is made of ABS material, which is tightly connected to the sealing end cover to improve the stability of the vehicle during underwater navigation. The communication antenna assembly is used for surface communication, and the communication antenna assembly has an axial round rod component that passes through the fairing to connect to the buoyancy adjustment unit, and the front end is a head located outside the fairing.
[0027] Furthermore, the communication antenna assembly includes: an antenna connecting rod 16, an antenna protection rod 17, and a communication antenna 18.
[0028] The antenna connecting rod is made of titanium alloy, and one end of the antenna connecting rod is axially pressed and sealed with the other end of the plunger and threadedly connected; the communication antenna is a conical structure, which can effectively improve the signal strength, and one end of the communication antenna is radially piston-sealed and threadedly connected with the other end of the antenna connecting rod; the antenna protection rod is made of glass fiber, and the antenna protection rod is symmetrically divided into two halves and is sleeved on the outside of the antenna connecting rod, and the flange surface of the antenna protection rod is tightly connected to the plunger.
[0029] The buoyancy adjustment unit is used to adjust the buoyancy, and is connected to the communication antenna assembly and can control the axial expansion and contraction of the communication antenna assembly. The buoyancy adjustment unit includes a plunger and a plunger driving mechanism.
[0030] The plunger is mounted on the sealing end cap to form a sealing piston structure for the axial movement of the plunger. The plunger driving mechanism is installed in the pressure-resistant housing, and the plunger driving mechanism is connected to and drives the plunger. The communication antenna assembly is arranged outside the pressure-resistant housing and mounted on the plunger.
[0031] In this embodiment, the plunger drive mechanism includes a drive motor 7 and a trapezoidal lead screw 27. Specifically, it also includes a motor protection shell 6, a motor fixing frame 8, a rear support frame 26, a front support frame 25, a lead screw mounting shaft 20, a thrust retaining ring 24, a thrust bearing 23, a thrust clamping ring 22, a lead screw connecting shaft 19, a rolling bearing 21, and a coupling 9.
[0032] The driving motor is a reduction motor and is the driving component of the buoyancy unit. The motor protective shell includes two parts, upper and lower, which are sleeved on the outside of the driving motor to prevent the wiring harness from being entangled and damaged during operation. One end of the motor fixing frame is tightly connected to the driving motor. The rear support frame is tightly connected to the other end of the motor fixing frame. The front support frame is tightly connected to the other end of the rear support frame. The screw mounting shaft is placed inside the rear support frame and the front support frame, and the end of the screw mounting shaft close to the shoulder is fixed on the inner ring of the rolling bearing. The thrust retaining ring is passed through the side of the screw mounting shaft away from the shoulder, and a pair of thrust bearings are symmetrically arranged on both sides of the thrust retaining ring. The thrust clamping ring is fixed on the side of the screw mounting shaft away from the shoulder, and contacts with the thrust bearing 23 to provide a certain clamping force. The trapezoidal screw 27 passes through the inner side of the screw mounting shaft. The screw connecting shaft is threadedly connected to the trapezoidal screw, and the screw connecting shaft is fixed on the inner ring of the rolling bearing close to the shoulder. The outer rings of the two rolling bearings are respectively fixed on the rear support frame and the front support frame. The two ends of the coupling are fastened to the output shaft of the drive motor and the screw connecting shaft respectively. The buoyancy unit adopts a structural form of symmetrically arranged two sets of rolling bearings and thrust bearings, which improves the safety and reliability of the buoyancy unit. The buoyancy unit plunger is connected to the trapezoidal screw pair, and the self-locking function of the trapezoidal screw is used to achieve axial positioning of the buoyancy unit, prevent axial movement, and ensure the stability of the buoyancy unit.
[0033] The specific method of fitting the plunger to the sealing end cover and forming a sealing piston structure for axial movement of the plunger is as follows:
[0034] It includes a plunger guide fixing frame 10 , a lead screw nut 11 , a plunger limiting block 12 , a plunger end cover 13 , a plunger guide end cover 15 and a sliding block 28 .
[0035] One end of the plunger guide fixing frame is tightly connected to the outer side of the rear support frame, and two side portions of the plunger guide fixing frame form guide grooves.
[0036] The screw nut is a screw accessory and is connected to the trapezoidal screw by thread.
[0037] One end of the plunger 14 is tightly connected to the outside of the plunger end cover, and the plunger end cover is tightly connected to the flange surface of the screw nut, so that the rotating trapezoidal screw drives the plunger to move axially.
[0038] The plunger limit block is threadedly connected to the plunger end cover to limit the axial movement of the plunger.
[0039] The sealing end cover is provided with a plunger guide end cover with a plunger hole. The plunger guide end cover is sleeved on the outside of the plunger and is dynamically sealed and connected with the plunger. One end of the plunger guide end cover is tightly connected with the plunger guide fixing frame.
[0040] The two slide blocks are symmetrically fastened to the plunger end cover and are placed in the guide groove of the plunger guide fixing frame.
[0041] This embodiment has a simple structure and low cost. It provides driving force for the underwater vehicle to float and sink by driving the plunger to move back and forth, without using oil as a medium, thereby reducing the risk of water pollution. It adopts a structural form in which two sets of rolling bearings and thrust bearings are symmetrically arranged, thereby improving the safety and reliability of the buoyancy unit. The plunger is connected to the trapezoidal screw pair, and the self-locking function of the trapezoidal screw is used to achieve axial positioning of the buoyancy unit, prevent axial movement, and ensure the stability of the buoyancy unit.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A buoyancy regulating device with integrated communication antenna for underwater vehicle, comprising a pressure hull, a sealing end cover, a fairing and a communication antenna assembly, wherein the sealing end cover is arranged at the front end of the pressure hull, and the fairing is installed at the front of the pressure hull, characterized in that: It also includes a buoyancy adjustment unit, which includes a plunger and a plunger driving mechanism. The plunger is mounted on a sealing end cover to form a sealing piston structure for axial movement of the plunger. The plunger driving mechanism is installed in a pressure-resistant shell, and the plunger driving mechanism is connected to and drives the plunger. The communication antenna assembly is arranged on the outside of the pressure-resistant shell and installed on the plunger.
2. The buoyancy regulating device with integrated communication antenna for underwater vehicle according to claim 1, characterized in that: The plunger driving mechanism includes a driving motor and a trapezoidal lead screw driven by the driving motor. The trapezoidal lead screw is equipped with a lead screw nut, and the lead screw nut is connected to the plunger.
3. The buoyancy regulating device with integrated communication antenna for underwater vehicle according to claim 2, characterized in that: The driving motor and the trapezoidal lead screw are connected via a coupling, and the trapezoidal lead screw is installed inside the pressure-resistant housing via a rolling bearing and a thrust bearing.
4. The buoyancy regulating device with integrated communication antenna for underwater vehicle according to claim 3, characterized in that: A plunger guide fixing frame is installed inside the pressure-resistant shell, and guide grooves are formed on both sides of the plunger guide fixing frame. Slide blocks adapted to the guide grooves are installed on both sides of the plunger.