CN218258664U - Gravity center adjusting device for underwater test model - Google Patents
Gravity center adjusting device for underwater test model Download PDFInfo
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- CN218258664U CN218258664U CN202222129469.8U CN202222129469U CN218258664U CN 218258664 U CN218258664 U CN 218258664U CN 202222129469 U CN202222129469 U CN 202222129469U CN 218258664 U CN218258664 U CN 218258664U
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Abstract
The utility model relates to a gravity center adjusting device for an underwater test model, wherein three adjusting water cabins and six open water cabins without medium loss are arranged in the underwater test model, the adjusting water cabins are respectively arranged in a head cabin and a middle cabin, and other cabins are open water cabins; an electromagnetic control valve is arranged at a liquid inlet and a liquid outlet of each regulating water tank, a regulating water pump is arranged on an outlet pipeline of each regulating water tank, the weight distribution of water is regulated and controlled by controlling the water level of ballast water in the regulating water tank so as to regulate the gravity center position of the test model, the regulating water pump is arranged on a water inlet pipeline of an open water tank, and the weight of the simulation tank section is kept unchanged by water inlet and outlet. The performance verification requirements of the underwater test model on different devices and different dynamic systems are met; meanwhile, the deformation of the model is reduced by injecting water into the underwater test model regulating cabin and removing the regulated water, so that the aims of avoiding causing overlarge bending moment and shearing force and reducing the vibration of the model are fulfilled.
Description
Technical Field
The utility model relates to a focus governing system, concretely relates to can realize focus adjusting device for large-scale underwater test model.
Background
The existing gravity center adjusting mechanism generally comprises a driving device, a guide rail and a heavy object, wherein the heavy object moves along the guide rail to adjust the gravity center position of the system. The gravity center adjusting mechanism is widely applied to complex systems. For example, documents "design of center of gravity adjustment mechanism for small underwater vehicle" and "design of center of gravity adjustment mechanism for underwater vehicle" describe a center of gravity adjustment structure for underwater vehicle, in which the center of gravity adjustment mechanism drives a variable speed control lead screw through a stepping motor, and the lead screw drives a mass block to realize high-precision adjustment of the center of gravity of the system. The pitch angle adjusting range of the gravity center adjusting device is less than or equal to +/-45 degrees, the adjusting precision is 0.1 degree, and the gravity center adjusting quantity is not less than 2.5kg.
However, the gravity center adjusting mechanism only can adjust the gravity center of the submersible with small volume and mass, and has limited adjusting effect on the gravity center and floating center of the large-scale and large-mass underwater test. The buoyancy adjustment and the floating center-gravity center adjustment functions of the large-mass underwater vehicle are independently realized, the buoyancy is changed by changing the volume of the oil bag, the gravity center is changed by changing the position of a heavy body such as ballast iron and the like on the whole ship, and the problems of poor control precision and inaccurate detection exist.
Disclosure of Invention
The utility model aims at providing a gravity center adjusting device for an underwater test model, which maintains the relative stability of the gravity center position of the underwater test model and meets the performance verification requirements of the underwater test model on different devices and different dynamic systems; meanwhile, the deformation of the model is reduced by injecting water into the underwater test model adjusting cabin and removing the adjusting water, so that the aims of avoiding causing overlarge bending moment and shearing force and reducing the vibration of the model are fulfilled.
In order to achieve the above purpose, the technical scheme of the utility model is that: a gravity center adjusting device for an underwater test model is characterized in that three adjusting water cabins and six open water cabins without medium loss are arranged in the underwater test model, the adjusting water cabins are respectively arranged in a head cabin and a middle cabin, and other cabins are open water cabins; the liquid inlet and outlet of each regulating water tank are provided with electromagnetic control valves for controlling the liquid in the regulating water tank to stop flowing in and out, and the outlet pipeline of each regulating water tank is provided with a regulating water pump for regulating the water level and weight in each regulating water tank; the water weight distribution is adjusted and controlled by controlling the ballast water level in the adjusting water tank, so that the gravity center position of the test model is adjusted, adjusting water pumps are installed on water inlet pipelines of six open water tanks without medium loss, and the weight of a simulation tank section is kept unchanged through water inlet and outlet.
Furthermore, a water suction and discharge port of the gravity center adjusting device is connected with a high-pressure adjusting water pump, the direction of water flow is controlled through an electromagnetic valve, and quality allocation of adjusting water and real-time monitoring of adjusting information are realized through a water level meter and a flowmeter.
Furthermore, the electromagnetic control valve and the regulating water pump can be opened in a remote control mode and are connected with an upper computer, and linkage is realized by the control of the upper computer.
Further, the main pipeline of the gravity center adjusting device is respectively connected with an adjusting water tank I, an adjusting water tank II and an adjusting water tank III, and the main pipeline of the gravity center adjusting device is connected with an opening water tank I, an opening water tank II, an opening water tank III, an opening water tank IV, an opening water tank V and an opening water tank VI, wherein: a water inlet of the first regulating water tank is provided with a first electromagnetic valve, and a water outlet is connected with a first regulating water pump and a first flowmeter through a second electromagnetic valve; a water inlet of the regulating water tank II is provided with a solenoid valve III, and a water outlet is connected with a regulating water pump II and a flow meter II through a solenoid valve IV; a water inlet of the regulating water tank III is provided with a solenoid valve V, and a water outlet is connected with a regulating water pump III and a flow meter III through a solenoid valve VI; the main pipeline is connected with the first open water tank through a seventh electromagnetic valve, a fourth flowmeter, a fourth water pump and an eighth electromagnetic valve; and air holes are respectively formed in the first open water cabin, the second open water cabin, the third open water cabin, the fourth open water cabin, the fifth open water cabin and the sixth open water cabin.
The utility model has the advantages that:
the device of the utility model meets the requirement of the gravity center adjusting function of the underwater test model; the above functions are realized by adjusting the water quantity in a plurality of optimally arranged adjusting water cabins in the underwater model, and in addition, the real-time detection and the accurate adjustment control of the volume water quantity to be adjusted are realized by a water level meter and a flow meter. The concrete effects include:
1) The closed-loop control of the regulated water is realized through an integrated mechanical, electric and hydraulic closed-loop control technology, and the gravity center adjusting device can receive the command of an upper computer to complete the control and adjustment of the preset regulated water.
2) The integrated design of the gravity center adjusting device and the test model cabin body structure is realized, and the complexity of the underwater test model is reduced.
3) A closed-loop hydraulic system is adopted, water level and flow feedback, namely feedback of controlled regulated water volume participates in control regulation through a high-precision water level and flow sensor, the control precision is high, and the real-time performance is good.
Drawings
FIG. 1 is a block diagram of a center of gravity adjusting apparatus;
FIG. 2 is a front view of the water sump arrangement;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a top cross-sectional view of FIG. 2;
FIG. 5 is an adjustment block diagram;
in the figure: 1-first electromagnetic valve, 2-first regulating water tank, 3-first water level gauge, 4-second electromagnetic valve, 5-first regulating water pump, 6-first flowmeter, 7-third electromagnetic valve, 8-second regulating water tank, 9-second water level gauge, 10-fourth electromagnetic valve, 11-second regulating water pump, 12-second flowmeter, 13-fifth electromagnetic valve, 14-third regulating water tank, 15-third water level gauge, 16-sixth electromagnetic valve, 17-third regulating water pump, 18-third flowmeter, 19-main pipeline, 20-seventh electromagnetic valve, 21-fourth flowmeter, 22-fourth water pump, 23-eighth electromagnetic valve, 24-vent hole, 25-first opening water tank, 26-second opening water tank, 27-third opening water tank, 28-fourth opening water tank, 29-fifth opening water tank and 30-sixth opening water tank.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
The utility model discloses a focus adjusting device for test model under water carries and shifts through carrying out the counter weight medium between adjusting the bilge chamber, realizes test model focus under water and adjusts. The gravity center adjusting device comprises an adjusting water tank, an open water tank, an adjusting water pump, an electromagnetic valve, a water level meter, a flowmeter and the like. In order to realize multidirectional regulation, a high-pressure regulating water pump is used as main power of the system for water suction and drainage, the direction of water flow is controlled through an electromagnetic valve, and quality allocation of regulated water and real-time monitoring of regulating information are realized through a water level meter and a flow meter.
Three regulating water cabins and six open water cabins without medium loss are arranged in the underwater test model, the regulating water cabins are respectively arranged in the head cabin and the middle cabin, and other cabins are open water cabins. The regulating water tank regulates and controls the weight distribution of the regulating water by controlling the water level of the ballast water so as to regulate the gravity center position of the test model, and the open water tank can maintain the weight of the simulation tank section unchanged through water inlet and outlet.
Each regulating water tank comprises a liquid inlet and a liquid outlet, and the inlet and the outlet are respectively provided with an electromagnetic control valve for controlling the regulating water tank to stop inflow and outflow. And the outlet pipeline of each regulating water cabin is provided with a regulating water pump for regulating the water level and the weight in each regulating water cabin. The electromagnetic control valve and the regulating water pump can be opened in a remote control mode and can be linked with an upper computer control system.
Example (b):
as shown in fig. 1, a gravity center adjusting device for an underwater test model comprises a first electromagnetic valve 1, a first adjusting water tank 2, a first water level gauge 3, a second electromagnetic valve 4, a first adjusting water pump 5, a first flowmeter 6, a third electromagnetic valve 7, a second adjusting water tank 8, a second water level gauge 9, a fourth electromagnetic valve 10, a second adjusting water pump 11, a second flowmeter 12, a fifth electromagnetic valve 13, a third adjusting water tank 14, a third water level gauge 15, a sixth electromagnetic valve 16, a third adjusting water pump 17, a third flowmeter 18, a main pipeline 19, a seventh electromagnetic valve 20, a fourth flowmeter 21, a fourth water pump 22, an eighth electromagnetic valve 23, air holes 24, a first opening water tank 25, a second opening water tank 26, a third opening water tank 27, a fourth opening water tank 28, a fifth opening water tank 29 and a sixth opening water tank 30.
The main pipeline 19 is respectively connected with a first regulating water cabin 2, a second regulating water cabin 8, a third regulating water cabin 14, a first open water cabin 25, a second open water cabin 26, a third open water cabin 27, a fourth open water cabin 28, a fifth open water cabin 29 and a sixth open water cabin 30. Wherein: the water inlet of the regulating water tank I2 is provided with a first electromagnetic valve 1, and the water outlet is connected with a regulating water pump I5 and a first flowmeter 6 through a second electromagnetic valve 4. The water inlet of the regulating water tank II 8 is provided with a solenoid valve III 7, and the water outlet is connected with a regulating water pump II 11 and a flow meter II 12 through a solenoid valve IV 10. A water inlet of the regulating water tank III 14 is provided with a solenoid valve V13, and a water outlet is connected with a regulating water pump III 17 and a flow meter III 18 through a solenoid valve VI 16. The main pipeline 19 is connected with an open water tank I25 through a solenoid valve seven 20, a flow meter four 21, a water pump four 22 and a solenoid valve eight 23. Air holes 24 are respectively arranged on the first open water cabin 25, the second open water cabin 26, the third open water cabin 27, the fourth open water cabin 28, the fifth open water cabin 29 and the sixth open water cabin 30.
Fig. 2 to 4 show a water compartment arrangement comprising a regulating water compartment a and an open water compartment B.
A gravity center method for an underwater test model, as shown in fig. 5, comprises the steps of:
1) And replacing the installation and layout of internal equipment of the model according to test requirements, estimating the gravity center position of the test model according to the equipment quality and the gravity center position of the equipment, and giving the longitudinal gravity center positions X1, X2 and X3 of the test model.
2) According to the water level regulation principle, water level information h1, h2 and h3 of the three regulation water tanks when the gravity center position is kept stable are calculated, water quantity required by reaching the water level information is calculated, and required flow rates q1, q2, q3 and q4 are determined.
3) And determining the opening time T1-T8 of the electromagnetic valve of each pipeline system and the opening time T1-T8 of the regulating water pump according to the flow information.
4) The controller outputs electromagnetic valves and opening instructions of the regulating water pump, and reads flow information Q1, Q2, Q3 and Q4 of the regulating water pump and water level information H1, H2 and H3 of the water tank after the opening time is reached.
5) If Q1= Q1, Q2= Q2, Q3= Q3, Q4= Q4, H1= H1, H2= H2, H3= H3, the water level adjustment is completed.
6) If the condition in 5) is not met, repeating the steps 3) to 4).
7) And (4) calculating the longitudinal gravity center positions X1, X2 and X3 of the test model at the moment according to the water level information, finishing gravity center adjustment if the deviation from the X1, X2 and X3 is within 10%, and otherwise, repeating the steps 1) to 5).
Claims (4)
1. The utility model provides a focus adjusting device for experimental model under water which characterized in that: three regulating water cabins and six open water cabins without medium loss are arranged in the underwater test model, the regulating water cabins are respectively arranged in the head cabin and the middle cabin, and other cabins are open water cabins; the liquid inlet and outlet of each regulating water tank are provided with electromagnetic control valves for controlling the liquid in the regulating water tank to stop flowing in and out, and the outlet pipeline of each regulating water tank is provided with a regulating water pump for regulating the water level and weight in each regulating water tank; the water weight distribution is adjusted and controlled by controlling the ballast water level in the adjusting water tank, so that the gravity center position of the test model is adjusted, adjusting water pumps are installed on water inlet pipelines of six open water tanks without medium loss, and the weight of a simulation tank section is kept unchanged through water inlet and outlet.
2. The gravity center adjusting apparatus for an underwater test model according to claim 1, characterized in that: the water suction and discharge port of the gravity center adjusting device is connected with a high-pressure adjusting water pump, the direction of water flow is controlled through an electromagnetic valve, and quality allocation of adjusting water and real-time monitoring of adjusting information are achieved through a water level meter and a flow meter.
3. The gravity center adjusting apparatus for an underwater test model according to claim 2, characterized in that: the electromagnetic control valve and the regulating water pump can be opened in a remote control mode and are connected with an upper computer, and linkage is realized by the control of the upper computer.
4. The gravity center adjusting apparatus for an underwater test model according to claim 1, characterized in that: the main pipeline of the gravity center adjusting device is respectively connected with an adjusting water tank I, an adjusting water tank II and an adjusting water tank III, and the main pipeline of the gravity center adjusting device is connected with an opening water tank I, an opening water tank II, an opening water tank III, an opening water tank IV, an opening water tank V and an opening water tank VI, wherein: a water inlet of the first regulating water tank is provided with a first electromagnetic valve, and a water outlet is connected with a first regulating water pump and a first flowmeter through a second electromagnetic valve; a water inlet of the regulating water tank II is provided with a solenoid valve III, and a water outlet is connected with a regulating water pump II and a flow meter II through a solenoid valve IV; a water inlet of the regulating water tank III is provided with a solenoid valve V, and a water outlet is connected with a regulating water pump III and a flow meter III through a solenoid valve VI; the main pipeline is connected with the first open water tank through a seventh electromagnetic valve, a fourth flowmeter, a fourth water pump and an eighth electromagnetic valve; and the first open water cabin, the second open water cabin, the third open water cabin, the fourth open water cabin, the fifth open water cabin and the sixth open water cabin are respectively provided with air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222129469.8U CN218258664U (en) | 2022-08-12 | 2022-08-12 | Gravity center adjusting device for underwater test model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222129469.8U CN218258664U (en) | 2022-08-12 | 2022-08-12 | Gravity center adjusting device for underwater test model |
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| Publication Number | Publication Date |
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| CN218258664U true CN218258664U (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222129469.8U Active CN218258664U (en) | 2022-08-12 | 2022-08-12 | Gravity center adjusting device for underwater test model |
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2022
- 2022-08-12 CN CN202222129469.8U patent/CN218258664U/en active Active
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