CN115753763A - Variable-angle free water outlet test device and method without transmitted gas interference - Google Patents
Variable-angle free water outlet test device and method without transmitted gas interference Download PDFInfo
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- CN115753763A CN115753763A CN202211384939.3A CN202211384939A CN115753763A CN 115753763 A CN115753763 A CN 115753763A CN 202211384939 A CN202211384939 A CN 202211384939A CN 115753763 A CN115753763 A CN 115753763A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 217
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 8
- 125000006850 spacer group Chemical group 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 238000001914 filtration Methods 0.000 claims abstract description 60
- 238000002474 experimental method Methods 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 210000003934 vacuole Anatomy 0.000 abstract description 8
- 239000003380 propellant Substances 0.000 description 10
- 230000002411 adverse Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
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Abstract
The invention provides a variable-angle free water outlet test device and method without transmitted gas interference, and belongs to the technical field of ocean engineering experiments. The problems that the conventional underwater launching experimental device only adopts a vertical or oblique single launching mode, the launching device is installed in the water tank, the water tightness and potential safety hazards are caused, and the navigation body goes out of the cylinder and moves in a posture, and water outlet vacuoles are interfered by the launched gas are solved. The device comprises a support, a water tank, a rotating mechanism, a channel switching mechanism and a launching mechanism, wherein the rotating mechanism is used for realizing the accurate adjustment of the water outlet angle, a gas-filtering water-sealing spacer of the channel switching mechanism is broken at a preset position when a navigation body is impacted, the rest gas-filtering water-sealing spacers are close to the side wall of the upward navigation body, the launching gas is prevented from entering the water tank under the action of water pressure, the launching gas is prevented from expanding outwards and overflowing at a plurality of air dispersing holes at the head end of a gun tube, and the launching gas is prevented from entering the water tank to influence the water outlet posture and the cavitation flow field of the navigation body; the invention is suitable for the multi-angle free water outlet test of the navigation body without gas interference.
Description
Technical Field
The invention belongs to the technical field of ocean engineering experiments, and particularly relates to a variable-angle free water outlet test device and method without transmitted gas interference.
Background
With the high-speed development of modern naval vessels and the frequent disputes of sea rights in various regions at present, underwater weapons are paid more and more attention, and both submarine-launched weapons and cross-medium weapons relate to the water outlet process. The water outlet process has strong nonlinearity and can influence too many factors, the navigation body is partially or wholly wrapped by the vacuoles, and the pulsation of the vacuoles and the influence of natural sea conditions cause the water outlet process to be influenced by the violently changed hydrodynamic force. Various factors influence whether the navigation body can cross a water layer of dozens of meters and keep a good water outlet posture, which directly determines the success or failure of the water outlet of the navigation body.
The current experimental apparatus about launching under water adopts perpendicular transmission mode or oblique transmission mode more, is difficult for freely changing the angle to pneumatic emitter is inside the water tank more, and the motion gesture and the vacuole form of navigation body after going out of a section of thick bamboo receive the influence of launching gas vacuole pulsation. The water outlet problem has strong non-stationarity and strong non-linearity, and the adverse effect of experimental conditions on the movement of a navigation body is reduced as much as possible, so that the development of a water outlet experimental device which is more in line with the reality is urgently needed.
Disclosure of Invention
In view of the above, the present invention provides a variable-angle free water discharge test device without interference of emission gas, so as to solve the problems that the conventional underwater emission test device only has a single vertical or oblique emission mode, the pneumatic emission device is installed in the water tank to avoid water tightness and potential safety hazards, the navigation body is in motion attitude out of the cylinder, and the water discharge vacuole is interfered by the emission gas.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a variable-angle free water outlet test device without emitted gas interference comprises a support, a water tank, a rotating mechanism, a channel switching mechanism and an emitting mechanism, wherein the water tank and the rotating mechanism are both arranged on the support;
the rotating mechanism comprises an electric push rod and an angle measuring instrument, the output end of the electric push rod is hinged with the side surface of the water tank, the tail end of the electric push rod is hinged with the bracket, the electric push rod can drive the water tank, the channel switching mechanism and the launching mechanism to synchronously rotate, and the angle measuring instrument is installed on the water tank;
the passage switching mechanism comprises a ball valve, a plug flange and a plug assembly, the upper end of the ball valve is fixedly connected to the water tank bottom plate through a flange, the lower end of the ball valve is connected with the plug flange, the plug flange is connected with the barrel head flange, and the plug assembly is arranged between the plug flange and the barrel head flange;
the launching mechanism comprises a gun barrel, a solenoid valve and an air chamber, wherein a gun barrel head flange is connected with the upper end of the gun barrel, a gun barrel tail flange is arranged at the lower end of the gun barrel and is connected with the solenoid valve through a flange plate bolt, the lower end of the solenoid valve is connected with the air chamber, the solenoid valve is used for controlling the release of the launching gas in the air chamber, a navigation body is arranged in the gun barrel, and a plurality of gas dispersing holes for overflowing the launching gas are formed in the position, close to the upper end, of the gun barrel;
initially, the plug assembly seals the passage between the plug flange and the barrel head flange; during the experiment, the navigation body breaks the plug assembly and enters the water tank.
Furthermore, the plug assembly comprises a pressing plate, a circular rubber ring, a filter air seal water spacer and a plug plate, wherein the upper surface and the lower surface of a middle through hole of the pressing plate are respectively provided with the circular rubber ring, the pressing plate and the circular rubber ring on the pressing plate compress the filter air seal water spacer in a circular clamping groove on the plug plate, the plug assembly is pressed close to the plug flange by screwing up four top plate screws on a barrel head flange, the plug flange is pressed close upwards along with the plug plate, the circular rubber ring is extruded and acts together with the filter air seal water spacer, and sealing is realized.
Furthermore, the air-filtering water seal spacer is a circular sheet made of thickened tin paper, the diameter of the circular sheet is equal to that of a circular clamping groove in the plug board, an easily-torn line which is right opposite to the navigation body is arranged at the center of the air-filtering water seal spacer, and the air-filtering water seal spacer is broken at the easily-torn line when the navigation body impacts the air-filtering water seal spacer.
Furthermore, when the navigation body passes through the air-filtering water-sealing spacer, the rest air-filtering water-sealing spacer is tightly attached to the side wall of the upward navigation body, and the launching gas is prevented from entering the water tank under the combined action of the water pressure and the navigation body.
Furthermore, an easy-to-tear line with the diameter equal to that of the navigation body is arranged at the center of the air-filtering and water-sealing spacer.
Furthermore, the channel switching mechanism and the launching mechanism are fixedly connected below the water tank through the flange plates in sequence, a navigation body channel formed by the channel switching mechanism and the launching mechanism is always perpendicular to a bottom plate of the water tank, and the water outlet angle of the navigation body is accurately adjusted through the angle measuring instrument of the rotating mechanism and the control of the electric push rod.
Furthermore, the number of the electric push rods is two, the output end of each electric push rod is hinged with the water tank through a first hinge, and the tail end of each electric push rod is hinged with the cross beam of the support through a second hinge.
Furthermore, one side of the bottom of the water tank is folded paper and connected with the support through the third, the telescopic electric motor in the electric push rod drives the push rod to realize the relative rotation between the water tank and the support, and the other side of the bottom of the water tank is welded with a strip square pipe for transmitting the weight of the water tank to the support.
Furthermore, the front and back surfaces of the water tank adopt acrylic plates which are convenient for observing the state of the navigation body in the water tank.
The invention also aims to provide an experimental method of the variable-angle free water outlet test device without transmitted gas interference, which specifically comprises the following steps:
before the experiment:
attaching the air-filtering water-sealing spacer to the circular clamping groove of the plug plate, clamping the air-filtering water-sealing spacer by the pressing plate and the plug plate to form a plug assembly together, and inserting the plug assembly into a reserved gap between the plug flange and the barrel head flange; the air-filtering and water-sealing spacer is tightly attached to the plug plate by the upward screwing of the top plate screw and the circular rubber ring on the pressing plate, and the air-filtering and water-sealing spacer and the circular rubber ring realize sealing together; manually opening the ball valve to fill water into a channel between the air-filtering water-sealing spacer and the ball valve; inflating the air chamber through a high-pressure air source to a corresponding pressure intensity according to a preset speed;
according to the requirement of the required water outlet experiment angle, the water tank is driven to rotate around the third hinge by the extension and contraction of the electric push rod until the experiment requirement is met;
during the experiment, the launching of the navigation body is controlled through the electromagnetic valve switch; after launching, the navigation body penetrates through the air-filtering and water-sealing water spacer and enters the water tank to make water movement; as the air-filtering and water-sealing spacer is damaged, water begins to leak, and the ball valve is manually closed in time to prevent further leakage of water; and (5) replacing the air-filtering water-sealing spacer after each experiment is finished, and repeating the steps to perform the next experiment.
Compared with the prior art, the variable-angle free water outlet test device without the transmitted gas interference has the beneficial effects that:
(1) The invention creates the variable-angle free water outlet test device without the interference of the emitted gas, which is not only suitable for a vertical water outlet test, but also can adjust the water outlet angle by rotating the water tank through the electric push rod when the working condition is required, and the emission device is positioned below the water tank, and a pneumatic emission mechanism is adopted, so that the emission speed is ensured, the emitted gas is discharged through the air dispersing hole at the head of the gun tube, and the influence of the emitted gas on the motion posture of a navigation body is reduced.
(2) The invention creates the variable-angle free water outlet test device without interference of the emission gas, through the specially designed air-filtering water-sealing spacer, the air-filtering water-sealing spacer is broken at a preset position when a navigation body is impacted, the rest air-filtering water-sealing spacer is close to the side wall of the upward navigation body, the emission gas is prevented from entering a water tank under the action of the combined water pressure, in addition, the head end of a gun barrel is provided with a plurality of air dispersion holes, the emission gas expands outwards and overflows at the position, and the influence of the emission gas entering the water tank on the water outlet posture and the cavitation flow field of the navigation body is further prevented.
(3) The variable-angle free water outlet test device without the interference of the emitted gas can realize small-scale water outlet test research at different angles and different speeds, and reduce adverse influence factors of a water outlet test of a navigation body.
(4) The variable-angle free water outlet test device without the interference of the emitted gas is simple in structure and installation between the variable-angle free water outlet test device and a test model, can be used for processing each component separately and then mutually connecting the components through the flange and the hinge, is mutually independent, safe, reliable and replaceable.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
fig. 1 is a schematic perspective view of a free-flowing water test device without disturbance of emitted gas according to the inventive embodiment of the present invention;
FIG. 2 is a front view of a free-flowing water test device without disturbance of emitted gas according to the present invention;
FIG. 3 is a side view of a free water outlet test device with variable angle without disturbance of emitted gas according to the inventive embodiment of the present invention;
FIG. 4 is a partial schematic view of a channel switch mechanism of a variable-angle free water outlet test device without disturbance of emitted gas according to the inventive embodiment of the present invention;
fig. 5 is a schematic perspective view of a channel switching mechanism of a variable-angle free water outlet testing device without interference of emitted gas according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a gun tube of a variable-angle free water outlet test device without interference of emitted gas according to an embodiment of the invention.
Description of the reference numerals:
1. a water tank; 2. a support; 3. a ball valve; 4. a plug flange; 5. a plug board; 6. a barrel head flange; 7. a top plate screw; 8. a barrel; 9. an electromagnetic valve; 10. a gas chamber; 11. an electric push rod; 12. a first hinge; 13. a second fold; 14. a third fold; 15. a circular rubber ring; 16. a barrel tail flange; 17. a navigation body; 18. air diffusing holes; 19. an angle measuring instrument; 20. pressing a plate; 21. air-filtering and water-sealing spacer.
Detailed Description
As shown in fig. 1-6, the variable-angle free water outlet test device without interference of emitted gas comprises a support 2, a water tank 1, a rotating mechanism, a channel switching mechanism and an emission mechanism, wherein the water tank 1 and the rotating mechanism are both arranged on the support 2, the bottom of the water tank 1 is hinged with the support 2, the channel switching mechanism is arranged at the bottom of the water tank 1, the emission mechanism is arranged at the bottom of the channel switching mechanism, and the channel switch and the emission mechanism are both arranged outside the water tank 1;
the rotating mechanism comprises an electric push rod 11 and an angle measuring instrument 19, the output end of the electric push rod 11 is hinged with the side surface of the water tank 1, the tail end of the electric push rod 11 is hinged with the support 2, the electric push rod 11 can drive the water tank 1, the channel switching mechanism and the launching mechanism to synchronously rotate, and the angle measuring instrument 19 is installed on the water tank 1;
the channel switch mechanism comprises a ball valve 3, a plug flange 4 and a plug assembly, the upper end of the ball valve 3 is fixedly connected to the bottom plate of the water tank 1 through the flange, and the ball valve 3 can be arranged at the central position of the bottom plate of the water tank 1 through the flange; the lower end of the ball valve 3 is connected with a plug flange 4, the plug flange 4 is connected with a barrel head flange 6, and a plug assembly is arranged between the plug flange 4 and the barrel head flange 6;
the gun barrel head flange 6 is connected with the upper end of the gun barrel 8, a gun barrel tail flange 16 is arranged at the lower end of the gun barrel 8, the gun barrel tail flange 16 is connected with the electromagnetic valve 9 through a flange plate bolt, the lower end of the electromagnetic valve 9 is connected with the air chamber 10, the electromagnetic valve 9 is used for controlling the release of the emission gas in the air chamber 10, a navigation body 17 is arranged in the gun barrel 8, and a plurality of air diffusing holes 18 used for overflowing the emission gas are formed in the position, close to the upper end, of the gun barrel 8;
the plug assembly comprises a pressing plate 20, an annular rubber ring 15, an air-filtering water-sealing spacer 21 and a plug plate 5, wherein the annular rubber ring 15 is respectively arranged on the upper surface and the lower surface of a middle through hole of the pressing plate 20, the pressing plate 20 and the annular rubber ring 15 on the pressing plate compress the air-filtering water-sealing spacer 21 in a circular clamping groove on the plug plate 5, the plug assembly is close to the plug flange 4 by screwing up four top plate screws 7 arranged on a barrel head flange 6, and the annular rubber ring 15 is extruded to jointly act with the air-filtering water-sealing spacer 21 to realize sealing along with the upward close of the plug plate 5 to the plug flange 4;
initially, a plug assembly seals a channel between a plug flange 4 and a barrel head flange 6, a circular clamping groove is formed in a plug plate 5, a gas-filtering water-sealing spacer 21 covers the circular clamping groove, the head end of a barrel 8 is shielded by the gas-filtering water-sealing spacer 21 from being communicated with the bottom of a water tank 1, during an experiment, a navigation body 17 breaks the plug assembly and enters the water tank 1, high-pressure transmitting gas enters atmosphere through a gas diffusion hole 18 and interacts with the gas-filtering water-sealing spacer 21, and the phenomenon that excessive transmitting gas enters the water tank to form pulsating bubbles to influence the movement of the navigation body 17 is avoided;
the launching mechanism is positioned below the water tank, the launching gas is freely supplemented and released outside the water tank, preparation work such as navigation body installation is carried out, and the launching gas is freely diffused into the atmosphere, so that the problems of water tightness and operation safety are solved. .
The water-sealing spacer 21 is a circular sheet made of thickened tin paper, the diameter of the circular sheet is equal to that of a circular clamping groove in the plug plate 5, an easily-torn line which is right opposite to the navigation body 17 is arranged at the center of the water-sealing spacer 21, the easily-torn line which is equal to the diameter of the navigation body is arranged at the center of the water-sealing spacer 21, when the navigation body 17 impacts the water-sealing spacer 21, the water-sealing spacer 21 is broken at the easily-torn line, when the navigation body impacts, the water-sealing spacer is broken at the preset position, the residual water-sealing spacer is close to the side wall of the upward navigation body, and the launching gas is prevented from entering the water tank 1 under the combined action of water pressure.
When the navigation body 17 passes through the air-filtering water-sealing spacer 21, the residual air-filtering water-sealing spacer 21 is tightly attached to the side wall of the upward navigation body 17, and the launching gas is prevented from entering the water tank 1 under the combined action of the water pressure and the navigation body 17, so that the adverse effects of the launching gas on the water outlet posture and the water outlet vacuole of the navigation body 17 are avoided.
The channel switching mechanism and the launching mechanism are fixedly connected below the water tank 1 through flange plates in sequence, a navigation body channel formed by the channel switching mechanism and the launching mechanism is always vertical to a bottom plate of the water tank 1, and the accurate adjustment of the water outlet angle of the navigation body 17 is realized through the control of an angle measuring instrument 19 of the rotating mechanism and the electric push rod 11; the electric push rod can output stable output force, the output force is rapid, the control precision is high, and the rotation angle of the water tank 1 can be well controlled; the water tank 1 can be freely rotated and adjusted within a range of 60 degrees under the action of the electric push rod 11; the angle measuring instrument 19 is a digital display angle measuring instrument and can display the rotation angle of the water outlet tank 1.
The electric push rods 11 are arranged in two numbers, the output end of each electric push rod is hinged to the water tank 1 through a first hinge 12, and the tail end of each electric push rod is hinged to the cross beam of the support 2 through a second hinge 13. One side of 1 bottom of water tank is folded paper 14 through the third and is connected with support 2, drives the flexible of push rod through the inside motor of electric putter to this realizes the relative rotation between water tank 1 and the support 2, through electric switch control electric putter's flexible, realizes angle modulation, and a rectangular side's pipe of 1 bottom opposite side welding of water tank is used for transmitting 1 weight of water tank to support 2.
The inferior gram force board of the body 17 state in water tank 1 of being convenient for observe is adopted to two sides around water tank 1, and the large tracts of land inferior gram force board is adopted to two sides around water tank 1, conveniently shoots and polish.
The support of this application is as the total bearing structure of this device, and it is articulated with water tank bottom and slewing mechanism respectively, and the slewing mechanism output is articulated with the water tank lateral wall, and passageway on-off mechanism and launching mechanism fixed connection are in proper order in the water tank bottom, and the navigation body sets up inside the launching mechanism barrel, constitutes this device overall layout.
Wherein channel switch mechanism contains the ball valve, the plug flange, the clamp plate, the rubber circle, strain the gas seal water spacer, the plug board, roof screw and barrel head flange, twist on through the roof screw, compress tightly the rubber circle between plug flange and the plug board and strain the gas seal water spacer, realize the sealed of water, strain the gas seal water spacer in the middle of setting up the suitable trompil array that equals with the navigation body diameter, strain the gas seal water spacer fracture at this preset position when the navigation body strikes, remaining filtration gas seal water spacer is close to the navigation body lateral wall of ascending, the effect of joint water pressure prevents that the propellant gas from getting into the water tank, in addition the barrel head end is provided with a plurality of scattered gas pockets, the propellant gas outwards expands here and spills over, further prevented that the propellant gas from getting into the water tank and influencing the play water attitude and the vacuole flow field of navigation body. The launching mechanism is located below the water tank, so that the launching gas is prevented from being supplemented and released in water, the navigation body is prevented from being installed in the water, the launching gas is freely diffused into the atmosphere, and the problems of water tightness and operation safety are solved.
The channel switch mechanism and the launching mechanism are fixedly connected below the water tank in sequence, a navigation body channel formed by the channel switch mechanism and the launching mechanism is always perpendicular to a bottom plate of the water tank, and the accurate adjustment of the water outlet angle is realized through the angle measuring instrument of the rotating mechanism and the automatic control of the electric push rod.
The application also provides an experimental method of the variable-angle free water outlet test device without transmitted gas interference, which specifically comprises the following steps:
before the experiment:
attaching the air-filtering water-sealing spacer 21 to the circular clamping groove of the plug plate 5, clamping the air-filtering water-sealing spacer 21 by the pressing plate 20 and the plug plate 5 to form a plug assembly together, and inserting the plug assembly into a reserved gap between the plug flange 4 and the barrel head flange 6; the top plate screws 7 are screwed up to press the circular rubber ring 15 on the pressure plate 20 to tightly attach the air-filtering and water-sealing spacer 21 to the plug plate 5, so that the air-filtering and water-sealing spacer and the circular rubber ring 15 realize sealing together; manually opening the ball valve 3 to fill water into a channel between the air-filtering and water-sealing spacer 21 and the ball valve 3; inflating the air chamber 10 through a high-pressure air source to a corresponding pressure intensity according to a preset speed;
according to the requirement of the required water outlet experiment angle, the water tank 1 is driven to rotate around the third hinge 14 by the extension and contraction of the electric push rod 11 until the experiment requirement is met;
during the experiment, the electromagnetic valve 9 is switched on and off to control the launching of the navigation body 17; after launching, the navigation body 17 penetrates through the air-filtering water-sealing spacer 21 to enter the water tank 1 to make water movement; as the air-filtering and water-sealing spacer 21 is damaged, water begins to leak, and the ball valve 3 is manually closed in time to prevent further leakage of water; and (3) replacing the air-filtering water-sealing partition 21 after each experiment is finished, and repeating the steps to perform the next experiment.
The air-filtering water-sealing spacer 21 is inserted into the plug board 5, the pressing board 20 is covered, and the plug board is compacted through the top board screw 7, so that water sealing is realized, and when the navigation body 17 penetrates through the air-filtering water-sealing spacer, the air-filtering water-sealing spacer 21 is broken at a preset position, and the rest part is tightly attached to the side wall of the navigation body and is acted with water pressure, so that the emitted gas is prevented from entering a water tank; the three sides of the head (head end) of the gun barrel are provided with holes for discharging the propellant gas, thereby further reducing the influence of the propellant gas entering the water tank on the movement of the navigation body. The relative position among water tank 1, channel switch mechanism and the firing mechanism is fixed, and when rotating water tank 1 through electric putter 11, the firing mechanism is rotatory thereupon, and the barrel is perpendicular the water tank bottom forever.
The water tank is connected with the electric push rod, and the water outlet angle can be freely changed according to needs; the launching mode adopts a pneumatic launching device, and the water outlet speed is high; the launching mechanism is positioned below the water tank, and the head of the gun barrel is provided with the air leakage hole, so that the launching gas is prevented from entering the water tank, and the influence of the launching gas on the movement of the navigation body is reduced; the water in the water tank is blocked by a plug system between the head of the gun barrel and the ball valve at the bottom of the water tank, and the navigation body can freely pass through the plug system. The experimental device is low in cost and convenient to operate, and can fully meet the requirements of water outlet experiments.
This application is owing to adopt pneumatic emitter, the navigation body realizes tentatively accelerating under high-pressure gas's promotion, a large amount of propellant gas can follow navigation body upward movement, when moving to the barrel head end, the disappointing hole of reserving here can effectively reveal propellant gas, navigation body is accomplished basically with higher speed this moment, propellant gas's pressure is little to navigation body further acceleration influence, but the pulsation that forms huge bubble after getting into the water tank influences navigation body play water attitude greatly, and when navigation body 17 pierces through the gas filtration water seal spacer, gas filtration water seal spacer 21 is at the position fracture of preset, the navigation body lateral wall is hugged closely to the surplus, with water pressure combined action, further blockked propellant gas and got into the water tank, the influence of propellant gas to the experiment has effectively been reduced, experiment reliability has further been guaranteed.
Claims (10)
1. The utility model provides a variable angle of no emission gas interference freely goes out water test device which characterized in that: the water tank is characterized by comprising a support (2), a water tank (1), a rotating mechanism, a channel switching mechanism and a transmitting mechanism, wherein the water tank (1) and the rotating mechanism are both arranged on the support (2), the bottom of the water tank (1) is hinged to the support (2), the channel switching mechanism is arranged at the bottom of the water tank (1), the transmitting mechanism is arranged at the bottom of the channel switching mechanism, and the channel switch and the transmitting mechanism are both arranged outside the water tank (1);
the rotating mechanism comprises an electric push rod (11) and an angle measuring instrument (19), the output end of the electric push rod (11) is hinged with the side face of the water tank (1), the tail end of the electric push rod (11) is hinged with the support (2), the electric push rod (11) can drive the water tank (1), the channel switch mechanism and the launching mechanism to synchronously rotate, and the angle measuring instrument (19) is installed on the water tank (1);
the passage switching mechanism comprises a ball valve (3), a plug flange (4) and a plug assembly, the upper end of the ball valve (3) is fixedly connected to a bottom plate of the water tank (1) through a flange, the lower end of the ball valve (3) is connected with the plug flange (4), the plug flange (4) is connected with a barrel head flange (6), and the plug assembly is arranged between the plug flange (4) and the barrel head flange (6);
the gun barrel launching mechanism comprises a gun barrel (8), an electromagnetic valve (9) and an air chamber (10), a gun barrel head flange (6) is connected with the upper end of the gun barrel (8), a gun barrel tail flange (16) is arranged at the lower end of the gun barrel (8), the gun barrel tail flange (16) is connected with the electromagnetic valve (9) through a flange plate bolt, the lower end of the electromagnetic valve (9) is connected with the air chamber (10), the electromagnetic valve (9) is used for controlling the release of the launching gas in the air chamber (10), a navigation body (17) is arranged in the gun barrel (8), and a plurality of air diffusing holes (18) for overflowing the launching gas are formed in the position, close to the upper end, of the gun barrel (8);
initially, the plug assembly seals the passage between the plug flange (4) and the barrel nose flange (6); during the experiment, the navigation body (17) breaks the plug assembly and enters the water tank (1).
2. The variable angle free water discharge test device without emitted gas interference of claim 1, wherein: the plug assembly comprises a pressing plate (20), a circular rubber ring (15), a filtering air-sealing water spacer (21) and a plug plate (5), wherein the upper surface and the lower surface of a middle through hole of the pressing plate (20) are respectively provided with the circular rubber ring (15), the pressing plate (20) and the circular rubber ring (15) on the pressing plate compress the filtering air-sealing water spacer (21) in a circular clamping groove on the plug plate (5), the plug flange (4) is pressed close to the plug assembly by screwing up four top plate screws (7) on a barrel head flange (6), the plug flange (4) is pressed close to the plug plate (5) upwards along with the plug plate (5), the circular rubber ring (15) is extruded and acts together with the filtering air-sealing water spacer (21), and sealing is realized.
3. The variable angle free water discharge test device without emitted gas interference of claim 2, wherein: the air-filtering water-sealing spacer (21) is a circular sheet made of thickened tin paper, the diameter of the circular sheet is equal to that of a circular clamping groove in a plug plate (5), an easily-torn line which is right opposite to a navigation body (17) is arranged at the center of the air-filtering water-sealing spacer (21), and the air-filtering water-sealing spacer (21) is broken at the easily-torn line when the navigation body (17) impacts the air-filtering water-sealing spacer (21).
4. The variable-angle free water outlet test device without transmitted gas interference of claim 3, wherein: when the navigation body (17) passes through the air-filtering water-sealing spacer (21), the residual air-filtering water-sealing spacer (21) is tightly attached to the side wall of the upward navigation body (17), and the launching gas is prevented from entering the water tank (1) under the combined action of water pressure and the navigation body (17).
5. The variable angle free water outlet test device without interference of emitted gas of claim 3, wherein: and the center of the air-filtering and water-sealing spacer (21) is provided with an easy-to-tear line with the same diameter as the navigation body.
6. The variable angle free water discharge test device without emitted gas interference of claim 1, wherein: the channel switching mechanism and the launching mechanism are fixedly connected below the water tank (1) through flange plates in sequence, a navigation body channel formed by the channel switching mechanism and the launching mechanism is always perpendicular to a bottom plate of the water tank (1), and the accurate adjustment of the water outlet angle of the navigation body (17) is realized through the control of an angle measuring instrument (19) of the rotating mechanism and an electric push rod (11).
7. The variable angle free water discharge test device without emitted gas interference of claim 1, wherein: the electric push rods (11) are arranged in two numbers, the output end of each electric push rod is hinged with the water tank (1) through a first hinge (12), and the tail end of each electric push rod is hinged with the beam of the support (2) through a second hinge (13).
8. The variable angle free water discharge test device without emitted gas interference of claim 1, wherein: one side of water tank (1) bottom is folded paper (14) through the third and is connected with support (2), drives the flexible relative rotation between water tank (1) and support (2) of realizing of push rod through the inside motor of electric putter, and a rectangular side's pipe of water tank (1) bottom opposite side welding for on transmitting water tank (1) weight to support (2).
9. The variable angle free water discharge test device without emitted gas interference of claim 1, wherein: the front and back surfaces of the water tank (1) adopt acrylic plates which are convenient for observing the state of the navigation body (17) in the water tank (1).
10. The experimental method of the variable angle free water outlet test device without the disturbance of the emitted gas as claimed in any one of claims 2 to 9, wherein: the method specifically comprises the following steps:
before the experiment:
attaching the air-filtering water-sealing spacer (21) to the circular clamping groove of the plug plate (5), clamping the air-filtering water-sealing spacer (21) by the pressing plate (20) and the plug plate (5) together to form a plug assembly, and inserting the plug assembly into a reserved gap between the plug flange (4) and the barrel head flange (6); the top plate screw (7) is screwed up to press the circular rubber ring (15) on the pressing plate (20) to tightly attach the air-filtering and water-sealing spacer (21) to the plug plate (5) to realize sealing together with the circular rubber ring (15); manually opening the ball valve (3) to fill water into a channel between the air-filtering and water-sealing spacer (21) and the ball valve (3); inflating the air chamber (10) through a high-pressure air source to a corresponding pressure intensity according to a preset speed;
according to the requirement of the required water outlet experiment angle, the water tank (1) is driven to rotate around the third hinge (14) by the extension and retraction of the electric push rod (11) until the experiment requirement is met;
during experiment, the electromagnetic valve (9) is switched on and off to control the launching of the navigation body (17); after the launching, the navigation body (17) penetrates through the air-filtering and water-sealing spacer (21) to enter the water tank (1) to make water movement; as the air-filtering and water-sealing spacer (21) is damaged, water begins to leak, the ball valve (3) is manually closed in time, and further water leakage is prevented; and (3) replacing the air-filtering water-sealing spacer (21) after each experiment is finished, and repeating the steps to perform the next experiment.
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| CN116608743A (en) * | 2023-07-20 | 2023-08-18 | 中国万宝工程有限公司 | Recovery device and recovery method of test bullet |
| CN116818270A (en) * | 2023-06-15 | 2023-09-29 | 哈尔滨工程大学 | Free water outlet test device for navigation body under decompression condition |
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| CN116818270A (en) * | 2023-06-15 | 2023-09-29 | 哈尔滨工程大学 | Free water outlet test device for navigation body under decompression condition |
| CN116818270B (en) * | 2023-06-15 | 2024-06-14 | 哈尔滨工程大学 | Free water outlet test device for navigation body under decompression condition |
| CN116608743A (en) * | 2023-07-20 | 2023-08-18 | 中国万宝工程有限公司 | Recovery device and recovery method of test bullet |
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