Integrated glider hydraulic buoyancy adjusting system

Abstract

The utility model discloses an integrated glider hydraulic buoyancy adjusting system, which belongs to the technical field of underwater vehicles and is characterized in that an end cover comprises an end cover body, an oil discharge port, an oil supply port, an oil receiving port, an oil supply hole channel and an oil return hole channel; the end cover body is provided with an inner end face corresponding to an underwater glider sealing cabin and an outer end face corresponding to an underwater glider wading cabin. The oil discharge outlet is a connecting hole which is formed in the end cover body and located in the outer end face. The oil supply port and the oil receiving port are connecting holes which are formed in the end cover body and located in the inner end face. The oil supply hole channel is formed in the end cover body and is communicated with the oil supply port and the oil discharge port; the oil return hole channel is formed in the end cover body and communicates with the oil return hole channel and the oil discharge outlet. According to the system, the structure is simplified, the operation convenience is improved, the time cost is saved, the impact resistance is enhanced, the space utilization efficiency is optimized, and the efficiency is improved, so that the performance and reliability of the system are comprehensively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of underwater vehicles, and in particular relates to an integrated glider hydraulic buoyancy regulating system. Background Art

[0002] As an advanced unmanned underwater vehicle, underwater gliders are widely used in the field of ocean observation and research. Compared with traditional underwater vehicles, underwater gliders have higher efficiency and flexibility. Their unique gliding motion enables them to conduct long-term and large-scale observation and detection underwater, conduct detailed monitoring and research on the marine environment, and provide strong technical support for marine scientific research and resource development.

[0003] In the construction of underwater gliders, the buoyancy regulation system is a crucial component. The system controls the speed and posture of the underwater glider's ascent and descent by adjusting its buoyancy to achieve precise control of the underwater depth. Among them, the flow of hydraulic oil between the oil tank and the outer bladder plays a key role. By increasing or decreasing the displacement volume, the flow of hydraulic oil can adjust the buoyancy of the underwater glider, thereby achieving its movement and mission execution at different depths.

[0004] As the underwater glider goes deeper into the water, the water pressure continues to increase, which poses a severe challenge to the buoyancy control system. In deep water environments, the increase in water pressure will cause the pressure between the oil discharge and return lines to rise sharply. Therefore, even if the sealing performance under high pressure has been considered in the design stage, it is still difficult to completely avoid the occurrence of oil leakage. Especially at the pipe connection, due to the high pressure, the force borne by the seal will reach the limit, which may cause slight or severe oil leakage. Minor oil leakage may be ignored, but long-term accumulation will lead to a decrease in the amount of hydraulic oil, which will in turn affect the precise control of the buoyancy control system. More serious oil leakage may cause the underwater glider to lose balance, unable to maintain a stable posture, or even unable to complete the action of floating or diving. This situation will not only affect the mission execution capability of the underwater glider, but also may pose a direct threat to its safety. In addition, the oil leakage problem in deep water environment also poses a great challenge to the maintenance of underwater gliders. Therefore, the existence of oil leakage will not only affect the real-time performance of the underwater glider, but also increase its maintenance cost and risk, and reduce its overall reliability and operability.

[0005] Therefore, in-depth technical research and optimized design are needed to address the possible oil leakage problem of the underwater glider buoyancy regulation system in deep water environments. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides an integrated glider hydraulic buoyancy adjustment system which aims to solve the problems faced by underwater glider buoyancy adjustment systems in deep water environments, such as oil leakage caused by increased water pressure, which may lead to performance degradation, obstruction of mission execution, reduced safety and maintenance difficulties.

[0007] The utility model is realized in this way: an integrated glider hydraulic buoyancy regulating system is characterized by comprising an end cover, a cartridge pump, a motor, a solenoid valve, an outer oil bag and an oil tank.

[0008] The end cover comprises an end cover body, an oil drain port, an oil supply port, an oil collection port, an oil supply passage and an oil return passage, wherein the end cover body has an inner end surface corresponding to the underwater glider sealed cabin and an outer end surface corresponding to the underwater glider wading cabin; the oil drain port is a connection hole provided on the end cover body and located on the outer end surface, and the oil supply port and the oil collection port are connection holes provided on the end cover body and located on the inner end surface; the oil supply passage is formed inside the end cover body and connects the oil supply port and the oil drain port; the oil return passage is formed inside the end cover body and connects the oil return passage and the oil drain port;

[0009] The cartridge pump is installed in the oil discharge pump cavity, the motor is connected to the cartridge pump through a coupling, the solenoid valve is installed at the oil receiving port, the outer oil bag is installed at the outer end surface of the end cover body, and the outer oil bag has an oil inlet part connected to the oil discharge port and an oil return part connected to the oil return port, and the oil tank is connected to the oil supply port of the end cover body and the oil receiving port of the assembled solenoid valve through a hose.

[0010] In the above technical solution, preferably, it includes an oil drain pump cavity, which is formed inside the end cover body and connected in series to the oil supply channel, and the oil drain pump cavity forms a space in the end cover body for installing the oil drain pump.

[0011] In the above technical solution, preferably, a protrusion is formed on the outer end surface of the end cover body, the oil drain pump cavity is formed inside the protrusion, and the oil drain pump cavity is provided with an opening located on the inner end surface.

[0012] In the above technical solution, preferably, an outer end surface of the end cover body is provided with an oil return port, and the oil return port is connected to the oil return channel.

[0013] In the above technical solution, preferably, an outer end surface of the end cover body is provided with an oil drain port, and the oil drain port is connected to the oil return channel.

[0014] In the above technical solution, preferably, the oil discharge pump cavity forms two cavities of unequal diameters, and the cavity diameter close to the inner end surface of the end cover body is larger than the cavity diameter close to the outer end surface of the end cover.

[0015] In the above technical solution, preferably, a one-way valve is included, and the one-way valve is installed at the oil discharge port of the end cover body.

[0016] Advantages and effects

[0017] This integrated glider hydraulic buoyancy adjustment system has many advantages and effects:

[0018] 1. Simplified structure: By concentrating important pressure-bearing pipelines in the end cover, the number of pipelines and connecting parts in the system is effectively reduced, the system structure is simplified, and the risk of oil leakage is reduced.

[0019] 2. Convenient operation: Assembly and maintenance are simpler and easier to operate. Due to the centralized design of important pressure-bearing pipelines, problems such as oil seepage and leakage caused by improper human operation during maintenance are reduced, and the convenience of operation is improved.

[0020] 3. Time and cost saving: The structure is safe and simple, which greatly shortens the assembly time, saves time and cost, and improves production efficiency and speed.

[0021] 4. Enhanced impact resistance: The use of a cartridge pump allows the pump body to be placed in the raised cavity of the end cover, which improves the stability and firmness of the pump body, enhances the system's impact resistance during water impact and underwater operations, and reduces damage to the glider.

[0022] 5. Improved space utilization efficiency: Most of the pipelines are integrated on the end cover body, so that the buoyancy system can save more space, optimize the system layout, and improve space utilization efficiency.

[0023] 6. Improved efficiency: The buoyancy system pipeline is integrated on the end cover body, and the oil outlet is directly connected to the outer bladder, which reduces some bend pipelines and losses along the way, greatly improving the efficiency of the buoyancy system and improving the overall performance and response speed of the system.

[0024] 7. In summary, the integrated glider hydraulic buoyancy adjustment system has significant advantages and effects in terms of simplified structure, convenient operation, time cost saving, enhanced impact resistance, improved space utilization efficiency and improved efficiency, providing reliable technical support for the stable operation and efficient execution of tasks of underwater gliders. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the system described in the utility model;

[0026] Figure 2 is an internal cross-sectional view of the end cover in the system of the utility model;

[0027] Figure 3 It is a schematic diagram of the outer structure of the end cover in the system of the utility model;

[0028] Figure 4 It is a schematic diagram of the inner and outer structures of the end cover in the system of the utility model;

[0029] Figure 5 It is a schematic diagram of the installation structure of the plug-in pump and the motor in the utility model. DETAILED DESCRIPTION

[0030] 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.

[0031] In order to solve the problems faced by the underwater glider buoyancy adjustment system in deep water environment, such as oil leakage caused by increased water pressure, which may lead to performance degradation, obstruction of mission execution, reduced safety and maintenance difficulties, the utility model provides an integrated glider hydraulic buoyancy adjustment system. This system improves the performance and reliability of the system by simplifying the structure, improving the convenience of operation, saving time and cost, enhancing the impact resistance, optimizing the space utilization efficiency and improving the efficiency. In order to further illustrate the structure of the utility model, the detailed description is as follows in conjunction with the attached drawings:

[0032] See also Figure 1-Figure 5 , an integrated glider hydraulic buoyancy adjustment system, including an end cover 1, a cartridge pump 2, a motor 3, a solenoid valve 4, an outer oil bag 5 and an oil tank 6.

[0033] The end cover includes an end cover body, an oil discharge port 1-1, an oil supply port 1-2, an oil receiving port 1-3, an oil supply channel 1-4, an oil return channel, an oil return port 1-5, and an oil discharge pump chamber 1-6.

[0034] The end cover body has an inner end surface corresponding to the underwater glider sealing cabin and an outer end surface corresponding to the underwater glider wading cabin.

[0035] The end cap body is an important component of the underwater glider. As a known and necessary accessory, it constitutes a part of the underwater glider shell. It is located at the rear of the underwater glider, separating and sealing two key areas: the internal pressure-resistant cabin and the external wading cabin. Normally, the end cap is assembled at the rear end of the underwater glider as part of the end cap body. An annular sealing connection is formed between the outer circumference of the underwater glider and the shell composed of the end cap, ensuring the sealing and stability of the entire underwater glider structure. The design of the end cap not only enables the underwater glider to operate normally in a deep-sea environment, but also provides a sturdy outer shell for the underwater glider to protect its internal key components from the influence of the external environment.

[0036] The oil drain port is a connection hole provided on the end cover body and located on the outer end surface. The oil supply port and the oil receiving port are connection holes provided on the end cover body and located on the inner end surface. The oil drain port is used to connect to the external oil bag of the underwater glider, and the oil supply port and the oil receiving port are used to connect to the oil tank inside the underwater glider.

[0037] The oil supply channel is formed inside the end cover body and connects the oil supply port and the oil discharge port; the oil return channel is formed inside the end cover body and connects the oil return port and the oil receiving port. The oil supply channel and the oil return channel are formed through the end cover body and are integrated channels processed inside the end cover body. The oil supply channel is used to transport the oil in the oil tank to the external oil bag, and the oil return channel is used to return the oil in the external oil bag to the internal oil tank. It is an independent axial straight-through channel. In this embodiment, the outer end surface of the end cover body is provided with an oil return port, and the oil return port is connected to the oil return channel. The oil return port is used to connect the oil return part of the external oil bag.

[0038] The oil drain pump cavity is formed inside the end cover body and is connected in series to the oil supply channel. The oil drain pump forms a space for installing the oil drain pump in the end cover body cavity. In the present embodiment, specifically, a protrusion 1-8 is formed on the outer end surface of the end cover body, and an oil drain pump cavity is formed inside the protrusion, and the oil drain pump cavity is provided with an opening located on the inner end surface. Specifically, the protrusion is integrally formed with the end cover body, and the oil supply port is provided at the end of the protrusion. The oil drain pump can be installed therein through the opening and connected to a motor for driving it through the opening. In the present embodiment, the oil drain pump uses a cartridge pump, and the pump body is in the protruding cavity of the end cover, so that the pump body is more stable and firm, and more impact-resistant during water entry and underwater operation, thereby reducing damage to the glider.

[0039] In this embodiment, specifically, the oil supply port on the inner end surface of the end cover body is a PC8-01G quick-connect interface, and the oil receiving port is a hole for a small solenoid valve. The raised portion is arranged below the center of the end cover body, and a rectangular raised portion is arranged on the side of the raised portion. The rectangular raised portion is provided with process holes 1-7 connected to the oil supply channel, and the process holes are equipped with plugs. In addition, a process hole connected to the oil supply channel is also arranged inside the end cover body. A channel is connected to each of the two sections of the oil discharge pump cavity of the end cover body. Four internal channels of the end cover are opened in the end cover body with the assistance of process holes. The internal channels of the PC8-01G quick-connect interface and the channels for installing the solenoid valve holes are opened in the end cover body with the assistance of process holes, and the channels are crossed with the cavity with a large diameter to form a channel. Through the process hole in the end cover body, a pipeline is made vertically downward at the intersection of the internal cavity of the PC8-01G quick-connect interface and the internal cavity of the solenoid valve installation hole, and then a cavity is made horizontally on the side of the cavity with a smaller diameter until it is connected with the cavity.

[0040] The cartridge pump uses a plunger pump and is installed in the oil discharge pump cavity. The motor is connected to the cartridge pump through a coupling to drive the cartridge pump to work. The solenoid valve is installed at the oil receiving port, and the outer oil bag is installed on the outer end surface of the end cover body. The outer oil bag has an oil inlet part connected to the oil discharge port and an oil return part connected to the oil return port. The oil tank is connected to the oil supply port of the end cover body and the oil receiving port of the assembled solenoid valve through a hose.

[0041] In this embodiment, specifically, it includes a buoyancy driver 7, which is a known controller, which is fixed on the buoyancy system bracket 8 through a bracket. The buoyancy driver receives the command of the main control and gives the command to the solenoid valve and the motor to return oil and drain oil. The oil tank is a bellows oil tank, which is installed on the buoyancy system bracket. The bellows oil tank is equipped with the bracket through three guide rods 9 and realizes the reciprocating motion of the end according to the volume of oil inside it. The rear retaining ring 10 is fixed on the buoyancy system bracket, and the buoyancy system bracket is then fixed on the end cover body with screws, forming the basic framework of the buoyancy system. The oil bladder displacement sensor 11 is installed on the displacement bracket and then fixed on the rear retaining ring with screws. The oil bladder displacement sensor mainly senses the oil level state in the bellows oil tank and provides feedback. The pre-immersed cartridge pump is installed in the oil discharge pump cavity of the end cover body, the pump frame is installed on the motor, the cartridge pump is pressed into the oil discharge pump cavity of the cylindrical protrusion of the end cover body, and the cartridge pump and the motor are connected through a coupling. The solenoid valve is installed at the oil receiving port, and is opened or closed by the main control power on and off command, and the negative pressure in the sealed cabin is used to realize the negative pressure return of the hydraulic oil. The outer oil bag is fixed to the end cover body by the oil bag clamping ring for sealing. The outer oil bag is an existing accessory and its installation method is a known technology.

[0042] When the glider wants to drain oil, the main control 12 gives a command to the buoyancy driver, and the buoyancy driver gives a command to the motor to power on. The motor rotates to drive the coupling and then drives the cartridge pump to rotate, so that the hydraulic oil enters the end cover body from the bellows tank through the hose. The hydraulic oil enters the outer bladder through the oil supply channel, and a one-way valve is installed at the oil supply port. The displacement sensor accurately senses the amount of oil discharged to complete the oil discharge process.

[0043] When the glider wants to return oil, the main control will energize the solenoid valve, which controls the oil receiving port to open, connects the oil return channel, and forms a large passage from the bellows tank to the end cover body. Under the action of negative pressure, the hydraulic oil flows from the outer oil bag into the bellows tank, and the amount of returned oil is accurately sensed by the displacement sensor to complete the oil return process.

[0044] 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. An integrated glider hydraulic buoyancy adjustment system, characterized in that: It includes end cover, cartridge pump, motor, solenoid valve, external oil bag and oil tank; The end cover comprises an end cover body, an oil drain port, an oil supply port, an oil collection port, an oil supply passage and an oil return passage, wherein the end cover body has an inner end surface corresponding to the underwater glider sealed cabin and an outer end surface corresponding to the underwater glider wading cabin; the oil drain port is a connection hole provided on the end cover body and located on the outer end surface, and the oil supply port and the oil collection port are connection holes provided on the end cover body and located on the inner end surface; the oil supply passage is formed inside the end cover body and connects the oil supply port and the oil drain port; the oil return passage is formed inside the end cover body and connects the oil return passage and the oil drain port; It includes an oil drain pump cavity, which is formed inside the end cover body and connected in series to the oil supply channel, and the oil drain pump cavity forms a space in the end cover body for installing the oil drain pump; The cartridge pump is installed in the oil discharge pump cavity, the motor is connected to the cartridge pump through a coupling, the solenoid valve is installed at the oil receiving port, the outer oil bag is installed at the outer end surface of the end cover body, and the outer oil bag has an oil inlet part connected to the oil discharge port and an oil return part connected to the oil return port, and the oil tank is connected to the oil supply port of the end cover body and the oil receiving port of the assembled solenoid valve through a hose.

2. The integrated glider hydraulic buoyancy adjustment system according to claim 1, characterized in that: A convex portion is formed on the outer end surface of the end cover body, and the oil discharge pump cavity is formed inside the convex portion. The oil discharge pump cavity is provided with an opening located on the inner end surface.

3. The integrated glider hydraulic buoyancy adjustment system according to claim 2, characterized in that: An oil return port is disposed on the outer end surface of the end cover body, and the oil return port is connected to the oil return channel.

4. The integrated glider hydraulic buoyancy adjustment system according to claim 3 is characterized in that: An oil drain port is disposed on the outer end surface of the end cover body, and the oil drain port is connected to the oil return channel.

5. The integrated glider hydraulic buoyancy adjustment system according to claim 4, characterized in that: The oil discharge pump cavity forms two sections of cavities with unequal diameters, and the diameter of the cavity close to the inner end surface of the end cover body is greater than the diameter of the cavity close to the outer end surface of the end cover.

6. The integrated glider hydraulic buoyancy adjustment system according to claim 1, characterized in that: A one-way valve is included, and the one-way valve is installed at the oil discharge port of the end cover body.

Images