CN115950301A - Underwater muzzle sealing device and using method - Google Patents

Abstract

The invention provides an underwater muzzle sealing device and a using method thereof. The motor drives the driving shaft to rotate, the driving shaft drives the clutch sleeve to axially move, to be meshed with the rotating shaft and to rotate, the cover plate at the opening part of the projectile outlet is turned, the firing channel is quickly opened and closed, the opening parts of the projectile outlets before and after the underwater cannon shoots are isolated from outside water, and the water is prevented from entering the interior of the cannon main body during shooting of the underwater cannon to influence normal work of the cannon. The rotating shaft is provided with the limiting ring, and the switch contact is pressed through the boss and the inclined plane on the limiting ring, so that the control of the overturning motion of the cover plate at the opening part of the ejection opening is realized. And the air pressure sensor is arranged in the small sealing chamber, so that the air pressure in the sealing chamber is monitored in real time and fed back to the console, and in addition, the check valve is arranged at the bottom of the small sealing chamber, so that redundant air in the small sealing chamber and water entering the small sealing chamber are discharged.

Description

Underwater muzzle sealing device and using method

Technical Field

The invention relates to the field of sealing of an underwater gun muzzle, in particular to an underwater gun muzzle sealing device and a using method thereof.

Background

Under the influence of water friction resistance, the motion speed and the motion distance of the traditional projectile in water are very limited, so that the capability of striking and defending an attacking target by adopting artillery-launched ammunition below the water surface is not realized all the time. With the development of supercavitation technology, underwater short-range defense by underwater launching kinetic energy ammunition becomes possible. The underwater cannon is an underwater short-range striking and defense weapon system developed on the basis of a supercavity technology, is an active exploration in the defense field of the underwater short-range cannon, and has important significance on the construction of an underwater defense system of the army.

The main body of the underwater cannon is sunk below the water surface, and the super-cavity ammunition is shot by the automatic machine to strike the short-range target. In order to prevent external water from entering the interior of the underwater gun main body to influence the normal work of the gun, the gun main body is isolated from the outside as much as possible; meanwhile, in order to ensure the smoothness of a projectile flight channel during shooting, the front of the muzzle of the artillery cannot be completely closed. Therefore, effective sealing measures are required to be taken at the muzzle part of the underwater cannon, if the sealing measures at the muzzle part of the underwater cannon are unreliable, water is directly poured into the cannon tube and enters the cannon main body, so that the cannon is in a shooting stopping fault, and the sealing at the muzzle part of the underwater cannon is particularly critical to the sealing design of the cannon main body.

Disclosure of Invention

The opening part of the underwater muzzle cannot be completely sealed, if sealing measures are not reliable, water can enter the interior of the cannon main body from the muzzle part in the shooting process of the cannon, so that the normal work of the cannon is influenced, and in order to avoid the problems, the invention provides the underwater muzzle sealing device and the using method.

The technical scheme of the invention is as follows:

an underwater muzzle sealing device comprises a cabin body, a connecting sleeve, a front end plate, a rear end plate, an air pipe, a signal cable, a cover plate, a clutch rotating assembly and a trigger assembly;

the connecting sleeve is used for being matched with an external artillery gun barrel;

the cabin body comprises a motor cabin and a sealing chamber positioned at one end of the motor cabin, and the sealing chamber is divided into a small sealing chamber and a large sealing chamber;

a motor is arranged in the motor cabin, and an external console controls the motor to operate through a signal cable;

the small sealing chamber is internally provided with a connecting sleeve mounting hole which is used for being connected with the front end of the connecting sleeve in a sealing way; a check valve and an air pressure sensor are arranged in the small sealing chamber; the air pressure sensor is used for monitoring the air pressure in the small sealed chamber in real time and transmitting an air pressure signal to the external control console; the external control console controls an external air source to fill air into the small sealing chamber through an air pipe, so that the air pressure in the small sealing chamber is kept in a constant interval; the one-way valve is used for discharging redundant gas in the small sealing chamber and discharging water entering the small sealing chamber in the opening process of the cover plate;

the large sealing chamber is communicated with the motor cabin through a driving shaft mounting hole; a clutch rotating assembly and a trigger assembly are arranged in the large sealing chamber;

the sealing chamber of the cabin body realizes end face sealing through a front end plate, and the front end plate is provided with an ejection port and a shaft sleeve mounting hole; after the front end plate is installed on the cabin body, the bullet outlet is coaxial with the connecting sleeve installation hole and the bullet passing hole in the connecting sleeve to form a bullet passing channel;

the motor cabin realizes end face sealing through a rear end plate, and a rear connecting shaft mounting hole and a wire passing hole are formed in the rear end plate; wherein the rear connecting shaft mounting hole is butted with the rear end of the connecting sleeve, and the signal cable and the air pipe enter the cabin body through the wire passing hole and seal the wire passing hole through the sealing block;

the separation and reunion rotating assembly is driven by a motor, can drive the cover plate positioned outside the front end plate to rotate, realizes that the front end plate ejection opening is sealed to cover or open, and covers or opens the back that targets in place, and passes through the trigger assembly sends the signal that targets in place.

Furthermore, the front end of the connecting sleeve is provided with a front flange, a front connecting shaft and a spring passing hole, and the front connecting shaft is used for being connected with a connecting sleeve mounting hole in the cabin body; the rear end of the coupling sleeve is provided with a rear flange, a rear coupling shaft and a muzzle coupling hole, and the rear coupling shaft is used for being butted with a rear coupling shaft mounting hole on the rear end plate.

Furthermore, the clutch rotating assembly comprises a rotating shaft, a limiting seat, a clutch sleeve, a pin shaft, a restraining sleeve and a driving shaft;

the center of the driving shaft is provided with a through hole with a key groove and is used for being coaxially and fixedly connected with the output shaft of the motor, and the driving shaft can synchronously rotate along with the output shaft of the motor; a pair of driving shaft spiral grooves which are symmetrical relative to the axis of the driving shaft are formed in the outer cylinder of the driving shaft and are used for being matched with the pin shaft;

one end of the clutch sleeve is provided with a pair of clutch sleeve clutch teeth which are symmetrical relative to the axis of the clutch sleeve, and the side wall surface of the clutch sleeve is provided with a pair of coaxial clutch sleeve through holes which are used for being matched with the pin shaft;

one end of the limiting seat is provided with a limiting seat square platform which is used for being connected with the end surface of the large sealing chamber through a bolt; the other end of the limiting seat is provided with a pair of limiting seat limiting teeth which are symmetrical relative to the axis of the limiting seat, the side wall surface of the limiting seat is provided with a pair of limiting seat limiting grooves which are symmetrical relative to the axis of the limiting seat, and the limiting seat limiting grooves are L-shaped and are divided into two sections which are parallel to the axis of the limiting seat and vertical to the axis of the limiting seat;

one end of the rotating shaft is provided with a rotating shaft disc, and the rotating shaft disc is provided with a rotating shaft clutch tooth;

the side surface of the limiting ring is provided with a limiting ring inclined surface and a limiting ring boss which are used for contacting with the trigger assembly and feeding back the rotation and axial movement position state of the rotating shaft;

the driving shaft is arranged on a driving shaft mounting hole in the large sealed chamber and is coaxially and fixedly connected with the output shaft of the motor; the clutch sleeve is sleeved on the outer cylinder of the driving shaft, and a clutch sleeve through hole on the clutch sleeve corresponds to the spiral groove on the driving shaft; the limiting seat is sleeved on the outer cylinder of the clutch sleeve, the square platform of the limiting seat is fixedly connected with the end face of the large sealing chamber, and the limiting groove of the limiting seat corresponds to the through hole of the clutch sleeve in position; and a pin shaft is arranged in the limiting groove of the limiting seat, the through hole of the clutch sleeve and the spiral groove of the driving shaft, and a restraining sleeve is arranged on the outer cylinder of the limiting seat to prevent the pin shaft from being separated from the limiting groove of the limiting seat, the through hole of the clutch sleeve and the spiral groove of the driving shaft.

Furthermore, the clutch rotating assembly further comprises a shaft sleeve, a limiting ring and a spring; the shaft sleeve is arranged in a shaft sleeve mounting hole of the front end plate; the cylindrical middle section of the rotating shaft is arranged in the shaft sleeve, and a rotating shaft disc of the rotating shaft faces the inner side of the sealed cabin; a spring is sleeved on the rotating shaft cylinder between the rotating shaft disc and the shaft sleeve; the limiting ring is fixedly mounted on the rotating shaft disc and can synchronously rotate and axially move along with the rotating shaft, and in the rotating and moving processes, the lug boss and the inclined plane on the limiting ring can be in contact with the trigger assembly to feed back the rotating and axial movement position states of the rotating shaft.

Furthermore, the cover plate is provided with a counter bore and a connecting through hole, and a sealing plate is arranged in the counter bore; the rotating shaft extends out of the outer side of the front end plate and is fixedly connected with the connecting through hole of the cover plate; when the rotating shaft rotates, the cover plate can be driven to rotate, the sealing plate covers the part of the ejection opening of the front end plate, and the ejection opening is sealed.

Furthermore, a pull rod is arranged between the cabin body and the rear end plate to realize auxiliary connection.

The installation method of the underwater muzzle sealing device comprises the following steps:

step 1, mounting one end of an air pipe on the side wall of a small sealing chamber after penetrating through a rear end plate wire passing hole, a motor cabin of a cabin body and a large sealing chamber, and connecting the other end of the air pipe with an external air source;

step 2, enabling one end of a motor cable connected with a motor to penetrate through a rear end plate wire passing hole and enter a motor cabin; one end of the signal cable, the pressure sensor and the touch switch are connected penetrates through the rear end plate wire passing hole and the motor cabin and enters the large sealing chamber, and the other ends of the motor cable and the signal cable are connected with the console;

step 3, installing a driving shaft in the motor cabin, installing a motor and connecting a motor cable;

step 4, installing a sealing gasket and a connecting sleeve outside the cabin body;

step 5, mounting a rear end plate on the rear end surface of the cabin, connecting the rear connecting shaft of the connecting sleeve with the mounting hole of the rear connecting shaft of the rear end plate, and mounting a sealing sleeve in the blast hole connecting hole;

step 6, installing a pull rod;

step 7, installing a one-way valve and a pressure sensor in the small sealed chamber, and connecting a pressure sensor control cable;

step 8, installing a limiting seat in the large sealing chamber, installing a clutch sleeve, rotating the limiting seat to adjust the positions of a limiting groove of the limiting seat, a through hole of the clutch sleeve and a spiral groove of the driving shaft, and installing a pin shaft;

step 9, installing a touch switch, and connecting a touch switch control cable;

step 10, installing a shaft sleeve on the front end plate;

step 11, mounting a limiting ring on the rotating shaft, sleeving a spring on the rotating shaft, and penetrating the rotating shaft into the shaft sleeve;

step 12, mounting a front end plate on the front end surface of the cabin body, and adjusting the position of a limit ring during mounting to ensure that a touch switch can be reliably touched when the cover plate rotates in place;

step 13, installing a baffle at the extending end of the rotating shaft outside the front end plate, and installing a sealing plate in a baffle counter bore before installation;

and 14, installing lifting ring screws on two sides of the cabin body.

The using method of the underwater muzzle sealing device comprises the following processes:

firstly, connecting a gun barrel of an artillery with a connecting hole of a muzzle of a connecting sleeve, and connecting an air pipe with an external air source; when no combat mission exists, the console receives a feedback signal of the air pressure sensor and controls the external air source to fill air into the small sealed chamber through the air pipe, so that the air pressure in the small sealed chamber is higher than the external water pressure and is kept in a constant interval;

when the artillery executes a shooting task, the console controls the external air source to continuously fill air into the small sealed chamber through the air pipe; meanwhile, a rotation signal is sent to the motor, the motor rotates to drive the driving shaft to rotate, the driving shaft spiral groove pushes the pin shaft to move along the limiting groove on the limiting seat, and the clutch sleeve is driven to move axially firstly and then rotate around the shaft; in the process of the movement of the clutch sleeve, the clutch teeth of the clutch sleeve are meshed with the clutch teeth of the rotating shaft to push the rotating shaft to axially move and rotate, so that the baffle at the opening part of the ejection opening is driven to open; the rotating shaft rotates and simultaneously drives the limiting ring arranged on the shaft to rotate, after the rotating shaft rotates to the position, namely the baffle plate rotates away from the bullet outlet, the boss on the limiting ring touches the contact switch, the contact switch feeds back a door opening in place signal to the console, the motor stops working and the firing circuit is switched on, the artillery fires the shot, and the shot passes through the bullet passing channel;

after the gun shooting is finished, the console sends a reverse rotation signal to the motor, the motor rotates to drive the driving shaft to rotate, the spiral groove of the driving shaft pushes the pin shaft to move along the limiting groove on the limiting seat, and the clutch sleeve is driven to rotate around the shaft and then move axially; the clutch sleeve drives the rotating shaft to rotate while performing rotary motion around the shaft, so that the baffle is driven to rotate to the mouth part of the ejection port; the clutch sleeve moves axially, clutch teeth of the clutch sleeve are disengaged from clutch teeth of the rotating shaft, the rotating shaft moves axially under the action of the spring and drives the baffle plate to press the sealing plate and the bullet outlet, and the bullet passing channel is closed; the rotating shaft rotates and simultaneously drives the limiting ring arranged on the shaft to rotate and axially move, after the limiting ring moves in place, the inclined surface 5 on the limiting ring touches and presses the contact switch, the contact switch feeds back a door closing in-place signal to the console, the motor stops working, the firing circuit is disconnected, and the gun stops firing; the gas continuously supplemented in the small sealing chamber discharges water entering the small sealing chamber in the artillery shooting process out of the cabin body through the one-way valve, after the set time is reached in the water discharging process, the control console controls the external gas source to stop inflating the small sealing chamber, and the underwater gun muzzle sealing device completes a working process.

Advantageous effects

The invention has the technical effects that:

1. the underwater gun muzzle sealing device can block water on the outer side of the gun muzzle part of the underwater gun, and prevents water from entering the interior of the gun main body during shooting of the underwater gun to influence normal operation of the gun.

2. The size of the projectile flight channel can be changed to match the pipe orifices of gun pipes with different calibers.

3. The motor drives the driving shaft to rotate, the driving shaft drives the clutch sleeve to axially move, to be meshed with the rotating shaft and to rotate, the cover plate at the mouth part of the projectile outlet is turned over, the rapid opening and closing of a firing channel are realized, and the blocking of the mouth parts of the projectile ports before and after the underwater cannon is fired on external water is realized.

4. The rotating shaft is provided with the limiting ring, and the switch contact is touched and pressed through the lug boss and the inclined plane on the limiting ring, so that the control of the overturning motion of the cover plate at the elastic outlet opening is realized.

5. According to the invention, the small sealing chamber is provided with the air pressure sensor, so that the air pressure in the sealing chamber is monitored in real time and fed back to the console. When the gun is not in a shooting state, the console receives a feedback signal of the air pressure sensor, and controls the external air source to fill high-pressure air into the small sealed chamber through the air pipe, so that the air pressure in the sealed chamber is higher than the external water pressure and is kept in a constant interval; when the artillery shoots, the console receives a feedback signal of the air pressure sensor in real time, and controls the external air source to continuously charge high-pressure air into the small sealing chamber through the air pipe, so that the air pressure in the sealing chamber is always higher than the external water pressure and keeps constant pressure difference, and water is prevented from entering the muzzle opening part in the shooting process of the underwater artillery.

6. According to the invention, the check valve is arranged at the bottom of the small sealing chamber, so that redundant gas in the small sealing chamber and water entering the small sealing chamber in the opening process of the cover plate at the elastic opening can be discharged.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the underwater muzzle sealing device of the present invention installed on the rear axial side of the muzzle mouth

FIG. 2 is a schematic rear-axis view of the underwater muzzle seal of the present invention.

Fig. 3 is a schematic front axial view of the underwater muzzle seal of the present invention.

FIG. 4 is a schematic view of the front shaft side of the underwater muzzle sealing device of the present invention, which is formed by hiding a front end plate, a cover plate and a sealing plate.

Figure 5 is a cross-sectional view of the underwater muzzle seal of the present invention.

Fig. 6 is a schematic view of the front axle side of the nacelle of fig. 2.

FIG. 7 is a schematic view of the rear axle side of the nacelle of FIG. 2.

FIG. 8 is a front isometric view of the coupling bushing of the present invention of FIG. 2.

FIG. 9 is a rear axle side schematic view of the coupling bushing of the present invention of FIG. 2.

Fig. 10 is a rear isometric view of the rear endplate of the invention of fig. 2.

Fig. 11 is a front isometric view of the front end plate of the present invention of fig. 3.

Fig. 12 is a schematic view of the rear axle side of the spindle of the present invention shown in fig. 3.

Fig. 13 is a rear isometric view of the cover plate of fig. 3 in accordance with the present invention.

Fig. 14 is a schematic view of the front shaft side of the spacing block of fig. 4.

Fig. 15 is a rear isometric view of the bushing of the present invention shown in fig. 3.

FIG. 16 is a rear isometric view of the stop collar of FIG. 3 according to the present invention.

Fig. 17 is a schematic side view of the clutch sleeve of fig. 3 showing the front shaft of the present invention.

Fig. 18 is a schematic axial view of the invention of fig. 3.

Fig. 19 is a schematic view of the seal plate of the invention of fig. 3.

Fig. 20 is a schematic view of the inventive sleeve of fig. 3.

Fig. 21 is a rear axial side schematic view of the inventive driveshaft of fig. 3.

In the figure, 1-underwater muzzle sealing device, 2-artillery gun barrel, 3-lifting bolt, 4-cabin, 5-sealing pad, 6-connecting sleeve, 7-sealing sleeve, 8-rear end plate, 9-air pipe, 10-motor cable, 11-signal cable, 12-sealing block, 13-pressing block, 14-pull rod, 15-front end plate, 16-rotating shaft, 17-cover plate, 18-touch switch, 19-air pressure sensor, 20-limit seat, 21-one-way valve, 22-shaft sleeve, 23-limit ring, 24-spring, 25-motor, 26-clutch sleeve, 27-pin shaft, 28-seal plate, 29-constraint sleeve, 30-drive shaft, 31-air pressure sensor mounting hole, 32-connecting sleeve mounting hole, 33-small seal chamber, 34-one-way valve mounting hole, 35-big seal chamber, 36-big seal chamber end face, 37-drive shaft mounting hole, 38-flying ring screw mounting hole, 39-pull rod mounting hole, 40-cabin body outside, 41-motor cabin, 42-front connecting shaft, 43-bomb-passing hole, 44-front flange, 45-rear flange, 46-rear connecting shaft, 47-gun muzzle connecting hole, 48-rear connecting shaft mounting hole, 49-line-passing hole, 50-shaft sleeve mounting hole, 51-bomb-ejecting port, 52-disk rotating shaft, 53-rotating shaft, 54-cylindrical clutch gear, 56-cylindrical clutch seat, 56-limit seat bevel-limit seat, 58-limit seat, limit seat bevel-limit seat, and limit seat, 59-a boss of a limiting block, 60-a through hole of a clutch sleeve, 61-a clutch tooth of the clutch sleeve and 62-a spiral groove of a driving shaft.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The underwater muzzle sealing device provided by the invention comprises a cabin body 4, a connecting sleeve 6, a front end plate 15, a rear end plate 8, an air pipe 9, a signal cable, a cover plate 17, a clutch rotating assembly and a trigger assembly.

As shown in fig. 8 and 9, one end of the coupling sleeve 6 has a front flange 44, a front coupling shaft 42 and a through spring hole 43, the front coupling shaft 42 is used for butting against the coupling sleeve mounting hole 32 in the cabin 4; the other end of the connecting sleeve 6 is provided with a rear flange 45, a rear connecting shaft 46 and a blast hole connecting hole 47, and the rear connecting shaft 46 is used for being butted with a rear connecting shaft mounting hole 48 on the rear end plate 8.

As shown in fig. 6 and 7, the cabin 4 includes a motor compartment 41 and a sealed chamber at one end of the motor compartment, and the sealed chamber is divided into a small sealed chamber 33 and a large sealed chamber 35.

The motor 25 is arranged in the motor cabin 41, and the external control console controls the motor 25 to operate through the motor cable 10.

The small sealing chamber 33 is provided with a connecting sleeve mounting hole 32, a one-way valve mounting hole 34 and an air pressure sensor mounting hole 31.

The connecting sleeve mounting hole 32 is communicated with the outside of the cabin 4 and is used for being butted with a connecting sleeve front connecting shaft 42 at one end of the connecting sleeve 6, and a connecting sleeve front flange 44 at the same end of the connecting sleeve 6 is attached to the outside 40 of the cabin and is sealed by a sealing gasket 5.

The check valve mounting hole 34 is positioned at the bottom of the small sealing chamber 33, is communicated with the large sealing chamber 35 and is used for mounting the check valve 21; the outlet end of the check valve 21 is communicated with the outside at the bottom of the large sealed chamber 35 for discharging the excessive gas in the small sealed chamber 33 and discharging the water entering the small sealed chamber 33 during the turnover of the cover plate 17.

The air pressure sensor mounting hole 31 is formed in the side wall of the small sealing chamber 33 and used for mounting the air pressure sensor 19 and monitoring the air pressure in the small sealing chamber 33 in real time, when the pressure is lower than a set value, a feedback signal can be sent to an external control console, and the control console controls an external air source to inflate the small sealing chamber 33 through the air pipe 9.

The big sealing chamber 35 is internally provided with a driving shaft mounting hole 37, and a clutch rotating assembly and a trigger assembly are arranged in the big sealing chamber 35.

The clutch rotating assembly comprises a rotating shaft 16, a limiting seat 20, a shaft sleeve 22, a limiting ring 23, a spring 24, a clutch sleeve 26, a pin shaft 27, a constraint sleeve 29 and a driving shaft 30.

As shown in fig. 21, the driving shaft 30 has a through hole with a key slot at the center for coaxial fixed connection with the output shaft of the motor 25, and the driving shaft 30 can rotate synchronously with the output shaft of the motor 25. The drive shaft 30 has a pair of drive shaft helical grooves 62 on its outer periphery that are symmetrical about the drive shaft axis for engagement with the pin 27.

As shown in fig. 17, the clutch sleeve 26 has a pair of clutch sleeve clutch teeth 61 at one end thereof, which are symmetrical with respect to the axis of the clutch sleeve, and a pair of coaxial clutch sleeve through holes on the side wall surface of the clutch sleeve for engaging with the pin 27.

As shown in fig. 14, one end of the limiting seat 20 is provided with a limiting seat square platform 55 for connecting with the large sealing chamber end face 36 through a bolt; the other end of the limiting seat 20 is provided with a pair of limiting seat limiting teeth 57 which are symmetrical relative to the axis of the limiting seat, and the side wall surface of the limiting seat is provided with a pair of limiting seat limiting grooves 56 which are symmetrical relative to the axis of the limiting seat, and the limiting seat limiting grooves 56 are L-shaped and are divided into two sections which are parallel to the axis of the limiting seat and vertical to the axis of the limiting seat.

As shown in fig. 12, the shaft 16 has a shaft disk 53 at one end, and a shaft clutch tooth 54 is provided on the shaft disk 53.

As shown in fig. 16, the side surface of the stop collar 23 has a stop collar inclined surface 58 and a stop collar boss 59 for contacting with the trigger assembly and feeding back the rotation of the rotating shaft and the axial movement position state.

Referring to fig. 4 and 5: the driving shaft 30 is arranged on a driving shaft mounting hole 37 in the large sealing chamber 35 and is coaxially and fixedly connected with the output shaft of the motor; the clutch sleeve 26 is sleeved on the outer cylinder of the driving shaft 30, and the clutch sleeve through hole on the clutch sleeve corresponds to the spiral groove on the driving shaft; the limiting seat 20 is sleeved on the outer cylinder of the clutch sleeve 26, the limiting seat square platform 55 is connected with the end surface 36 of the large sealing chamber through a bolt, and the limiting groove of the limiting seat corresponds to the position of the through hole of the clutch sleeve; the pin shaft 27 is arranged in the limiting groove of the limiting seat, the through hole of the clutch sleeve and the spiral groove of the driving shaft, and the restraining sleeve 29 is arranged on the outer cylinder of the limiting seat 20 to prevent the pin shaft 27 from being separated from the limiting groove 56 of the limiting seat, the through hole 60 of the clutch sleeve and the spiral groove 62 of the driving shaft.

The driving shaft 30 is driven to rotate by the output shaft of the motor, and the driving clutch sleeve 26 is driven to axially move and rotate by the driving shaft spiral groove and the limiting groove of the limiting seat.

The sealed chamber of the cabin 4 is sealed on the end face by the front end plate 15, the front end plate 15 is connected with the front end face of the sealed chamber by bolts, and as shown in fig. 11, the front end plate 15 is provided with a spring outlet 51 and a shaft sleeve mounting hole 50.

After the front end plate 15 is mounted on the cabin 4, the ejection outlet 51 is coaxial with the coupling sleeve mounting hole 32 and the coupling sleeve ejection passing hole 43 on the coupling sleeve to form an ejection passing channel.

The shaft sleeve 22 is arranged in the shaft sleeve mounting hole 50 of the front end plate 15; the middle section of a rotating shaft cylinder 52 of the rotating shaft 16 is arranged in the shaft sleeve 22, and a rotating shaft disc 53 of the rotating shaft 16 faces the inner side of the sealed cabin; a spring 24 is sleeved on the rotating shaft cylinder 52 between the rotating shaft disc 53 and the shaft sleeve 22; the limiting ring 23 is fixedly mounted on the rotating shaft disc 53, the limiting ring 23 can synchronously rotate and axially move along with the rotating shaft 16, and in the rotating and moving processes, the lug boss 59 and the inclined plane 58 on the limiting ring 23 can be in contact with the trigger assembly to feed back the rotating and axial movement position states of the rotating shaft.

As shown in fig. 13, the cover plate 17 has a counterbore and a connecting through hole, and a sealing plate 28 is installed in the counterbore. The rotating shaft 16 extends out of the front end plate 15 and is fixedly connected with the connecting through hole of the cover plate 17. When the rotating shaft rotates, the cover plate 17 can be driven to rotate, and the sealing plate 28 covers the opening part of the ejection opening 51 of the front end plate 15, so that the ejection opening is sealed.

The clutch sleeve 26 is driven to axially move and rotate by the spiral groove of the driving shaft and the limiting groove of the limiting seat, and the rotating shaft 16 is driven to axially move and rotate, so that the opening and closing of the cover plate 17 at the opening part of the spring opening 51 are realized.

The rear end plate 8 is connected with the rear end surface of the cabin body 4 through bolts, a rear connecting shaft mounting hole 48 on the rear end plate is in butt joint with a rear connecting shaft 46 of the 5 connecting sleeve, cables and air pipes enter the cabin body 4 through a wire passing hole 49, and the cables and the air pipes are sealed through a sealing block 12. The cabin body is connected with the rear end plate in an auxiliary way through a pull rod 14.

The air pipe 9 is formed by bending a copper pipe, one section of the air pipe is positioned in the cabin body 4, and the other section of the air pipe is positioned outside the cabin body 4; an air pipe in the cabin body sequentially enters the motor cabin 41, the large sealing chamber 35 and the small sealing chamber 33 through a rear end plate wire passing hole 49 and is used for inflating the small sealing chamber 33; the air pipe 9 outside the cabin body is connected with an external air source.

0, the number of the air pressure sensors 19 is 1, and the air pressure sensors are arranged on the side wall of the small sealed chamber 33; for real-time monitoring

When the pressure in the sealing chamber 33 is lower than a set value, a feedback signal is sent to the console, and the console controls the external air source to fill air into the small sealing chamber 33 through the air pipe 9, so that the air pressure in the small sealing chamber 33 is kept in a constant interval.

The number of the one-way valves 21 is 1, the one-way valves are arranged on the lower plane of the small sealing chamber 33 and pass through the lower plane of the large sealing chamber 355 to be communicated with the outside of the cabin 4; the check valve 21 is used to discharge the excess gas in the small sealed chamber 33 and to discharge the water that enters the small sealed chamber 33 during the opening of the covering plate 17 at the mouth of the ejection port 51.

The device of the invention comprises the following installation steps:

1. one end of the air pipe 9 is arranged after passing through the rear end plate wire passing hole 49, the motor cabin 41 of the cabin body 4 and the large sealing chamber 35

The air inlet is arranged on the side wall of the small sealing chamber 33, and the other end of the air inlet is connected with an external air source;

0 2. One end of the motor cable 10 connected with the motor penetrates through the rear end plate wire passing hole 49 and enters the motor cabin 41; one end of the signal cable 11, which is connected with the pressure sensor and the touch switch 18, passes through the rear end plate wire passing hole 49 and the motor cabin 41 and enters the large sealing chamber 35, and the other ends of the motor cable 10 and the signal cable 11 are connected with the console;

3. a driving shaft 30, a motor 25 and a connecting motor cable 10 are arranged in the motor cabin 41;

4. the outer surface 40 of the cabin body is provided with a sealing gasket 5 and a connecting sleeve 6;

5 5. The rear end surface of the cabin body is provided with a rear end plate 8, a rear coupling sleeve 46 and a rear end plate rear coupling shaft mounting hole 48

Butt joint, mounting a sealing sleeve 7 in the blast hole connecting hole 47;

6. installing a pull rod 14;

7. a check valve 21 and a pressure sensor 19 are arranged in the small sealing chamber 33 and connected with a pressure sensor control cable;

8. installing a limiting seat 20 and a clutch sleeve 26 in the large sealing chamber 35, rotating the limiting seat to adjust the positions of a limiting groove 56 of the limiting seat, a through hole 60 of the clutch sleeve and a spiral groove 62 of a driving shaft, and installing a pin shaft 27;

9. a touch switch 18 is arranged and connected with a touch switch control cable;

10. the front end plate 15 is provided with a shaft sleeve 22;

11. the rotating shaft 16 is provided with a limiting ring 23 and sleeved with a spring 24, and the rotating shaft 16 penetrates into the shaft sleeve 22;

12. a front end plate 15 is arranged on the front end surface of the cabin body, and the position of a limiting ring 23 is adjusted during installation, so that a touch switch can be reliably touched when the cover plate rotates in place;

13. a baffle 17 is arranged at the extended end of the rotating shaft outside the front end plate 15, and a sealing plate 28 is arranged in a counter bore of the baffle before the installation;

14. and lifting ring screws 3 are arranged on two sides of the cabin body.

The underwater gun muzzle sealing device has the following use process:

firstly, connecting the artillery gun barrel 2 with a coupling sleeve muzzle coupling hole 47, and connecting the air pipe 9 with an external air source; when no combat mission is available, the console receives a feedback signal of the air pressure sensor 19 and controls the external air source to fill air into the small sealed chamber 33 through the air pipe 9, so that the air pressure in the small sealed chamber 33 is higher than the external water pressure and is kept in a constant interval.

When the artillery executes a shooting task, the console controls the external gas source to continuously fill gas into the small sealed chamber 33 through the gas pipe 9; meanwhile, a rotation signal is sent to the motor 25, the motor 25 rotates to drive the driving shaft 30 to rotate, the driving shaft spiral groove 62 pushes the pin shaft 27 to move along the limiting groove 56 on the limiting seat, and the clutch sleeve 26 is driven to move axially and then rotate around the shaft; in the process of the movement of the clutch sleeve, the clutch sleeve clutch teeth 61 are meshed with the rotating shaft clutch teeth 54 to push the rotating shaft to perform axial movement and rotary movement, so that the baffle 17 at the mouth part of the ejection port 51 is driven to be opened. The pivot is rotatory to drive simultaneously and installs the epaxial spacing ring 23 rotatory, and the pivot is rotatory after target in place, and the baffle is after leaving the bullet mouth soon promptly, and the boss 59 on the spacing ring touches and presses contact switch 18, and contact switch feedback "door is opened target in place" signal to the control cabinet, stops motor work and switch on and hits the circuit, and the cannon will be shot, and the shot passes from crossing the bullet passageway.

After the gun shooting is finished, the console sends a reverse rotation signal to the motor 25, the motor 25 rotates to drive the driving shaft 30 to rotate, the driving shaft spiral groove 62 pushes the pin shaft 27 to move along the limiting groove 56 on the limiting seat, and the clutch sleeve 26 is driven to firstly perform the rotary motion around the shaft and then perform the axial motion; the clutch sleeve 26 rotates around the shaft and drives the rotating shaft to rotate, thereby driving the baffle 17 to rotate to the mouth of the ejection port. The clutch sleeve 26 moves axially, the clutch teeth 61 of the clutch sleeve are disengaged from the clutch teeth 54 of the rotating shaft, the rotating shaft moves axially under the action of the spring and drives the baffle 17 to press the sealing plate 28 and the bullet outlet 51, and the bullet passing channel is closed; the rotating shaft rotates and simultaneously drives the limiting ring 23 arranged on the shaft to rotate and axially move, after the limiting ring moves in place, the inclined surface 58 on the limiting ring touches and presses the contact switch 18, the contact switch feeds back a door closing in-place signal to the console, the motor stops working, the firing circuit is disconnected, and the cannon stops shooting; the gas continuously supplemented in the small sealing chamber 33 discharges water entering the small sealing chamber 33 in the artillery shooting process out of the cabin body 4 through the one-way valve 21, after the water discharging process reaches the set time, the console controls the external gas source to stop inflating the small sealing chamber 33, and the underwater muzzle sealing device completes a working process.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (8)

1. An underwater muzzle sealing device, characterized in that: comprises a cabin body, a connecting sleeve, a front end plate, a rear end plate, an air pipe, a signal cable, a cover plate, a clutch rotating assembly and a trigger assembly;

the connecting sleeve is used for being matched with an external artillery gun barrel;

the cabin body comprises a motor cabin and a sealing chamber positioned at one end of the motor cabin, and the sealing chamber is divided into a small sealing chamber and a large sealing chamber;

a motor is arranged in the motor cabin, and an external console controls the motor to operate through a signal cable;

the small sealing chamber is internally provided with a connecting sleeve mounting hole which is used for being connected with the front end of the connecting sleeve in a sealing way; a check valve and an air pressure sensor are arranged in the small sealing chamber; the air pressure sensor is used for monitoring the air pressure in the small sealed chamber in real time and transmitting an air pressure signal to the external control console; the external control console controls an external air source to fill air into the small sealing chamber through an air pipe, so that the air pressure in the small sealing chamber is kept in a constant interval; the one-way valve is used for discharging redundant gas in the small sealing chamber and discharging water entering the small sealing chamber in the opening process of the cover plate;

the large sealing chamber is communicated with the motor cabin through a driving shaft mounting hole; a clutch rotating assembly and a trigger assembly are arranged in the large sealing chamber;

the sealing chamber of the cabin body realizes end face sealing through a front end plate, and the front end plate is provided with an ejection port and a shaft sleeve mounting hole; after the front end plate is installed on the cabin body, the bullet outlet is coaxial with the connecting sleeve installation hole and the bullet passing hole in the connecting sleeve to form a bullet passing channel;

the motor cabin realizes end face sealing through a rear end plate, and a rear connecting shaft mounting hole and a wire passing hole are formed in the rear end plate; wherein the rear connecting shaft mounting hole is butted with the rear end of the connecting sleeve, and the signal cable and the air pipe enter the cabin body through the wire passing hole and seal the wire passing hole through the sealing block;

the separation and reunion rotating assembly is driven by a motor, can drive the cover plate positioned outside the front end plate to rotate, realizes that the front end plate ejection opening is sealed to cover or open, and covers or opens the back that targets in place, and passes through the trigger assembly sends the signal that targets in place.

2. An underwater muzzle seal according to claim 1, wherein: the front end of the connecting sleeve is provided with a front flange, a front connecting shaft and a spring passing hole, and the front connecting shaft is used for being connected with a connecting sleeve mounting hole in the cabin body; the rear end of the coupling sleeve is provided with a rear flange, a rear coupling shaft and a muzzle coupling hole, and the rear coupling shaft is used for being butted with a rear coupling shaft mounting hole on the rear end plate.

3. An underwater muzzle seal according to claim 1, wherein: the clutch rotating assembly comprises a rotating shaft, a limiting seat, a clutch sleeve, a pin shaft, a restraining sleeve and a driving shaft;

the center of the driving shaft is provided with a through hole with a key groove and is used for being coaxially and fixedly connected with the output shaft of the motor, and the driving shaft can synchronously rotate along with the output shaft of the motor; the outer cylinder of the driving shaft is provided with a pair of driving shaft spiral grooves which are symmetrical relative to the axis of the driving shaft and are used for being matched with the pin shaft;

one end of the clutch sleeve is provided with a pair of clutch sleeve clutch teeth which are symmetrical relative to the axis of the clutch sleeve, and the side wall surface of the clutch sleeve is provided with a pair of coaxial clutch sleeve through holes which are used for being matched with the pin shaft;

one end of the limiting seat is provided with a limiting seat square platform which is used for being connected with the end surface of the large sealing chamber through a bolt; the other end of the limiting seat is provided with a pair of limiting seat limiting teeth which are symmetrical relative to the axis of the limiting seat, the side wall surface of the limiting seat is provided with a pair of limiting seat limiting grooves which are symmetrical relative to the axis of the limiting seat, and the limiting seat limiting grooves are L-shaped and are divided into two sections which are parallel to the axis of the limiting seat and vertical to the axis of the limiting seat;

one end of the rotating shaft is provided with a rotating shaft disc, and the rotating shaft disc is provided with a rotating shaft clutch tooth;

the side surface of the limiting ring is provided with a limiting ring inclined surface and a limiting ring boss which are used for contacting with the trigger assembly and feeding back the rotation and axial movement position state of the rotating shaft;

the driving shaft is arranged on a driving shaft mounting hole in the large sealed chamber and is coaxially and fixedly connected with the output shaft of the motor; the clutch sleeve is sleeved on the outer cylinder of the driving shaft, and a clutch sleeve through hole on the clutch sleeve corresponds to the spiral groove on the driving shaft; the limiting seat is sleeved on the outer cylinder of the clutch sleeve, the square platform of the limiting seat is fixedly connected with the end face of the large sealing chamber, and the limiting groove of the limiting seat corresponds to the through hole of the clutch sleeve in position; and a pin shaft is arranged in the limiting groove of the limiting seat, the through hole of the clutch sleeve and the spiral groove of the driving shaft, and a restraining sleeve is arranged on the outer cylinder of the limiting seat to prevent the pin shaft from being separated from the limiting groove of the limiting seat, the through hole of the clutch sleeve and the spiral groove of the driving shaft.

4. An underwater muzzle seal according to claim 3, wherein: the clutch rotating assembly further comprises a shaft sleeve, a limiting ring and a spring; the shaft sleeve is arranged in a shaft sleeve mounting hole of the front end plate; the cylindrical middle section of the rotating shaft is arranged in the shaft sleeve, and a rotating shaft disc of the rotating shaft faces the inner side of the sealed cabin; a spring is sleeved on the rotating shaft cylinder between the rotating shaft disc and the shaft sleeve; the limiting ring is fixedly mounted on the rotating shaft disc and can synchronously rotate and axially move along with the rotating shaft, and in the rotating and moving processes, the lug boss and the inclined plane on the limiting ring can be in contact with the trigger assembly to feed back the rotating and axial movement position states of the rotating shaft.

5. An underwater muzzle seal according to claim 1, wherein: the cover plate is provided with a counter bore and a connecting through hole, and a sealing plate is arranged in the counter bore; the rotating shaft extends out of the outer side of the front end plate and is fixedly connected with the connecting through hole of the cover plate; when the rotating shaft rotates, the cover plate can be driven to rotate, the sealing plate covers the part of the ejection opening of the front end plate, and the ejection opening is sealed.

6. An underwater muzzle seal according to claim 1, wherein: and a pull rod is arranged between the cabin body and the rear end plate to realize auxiliary connection.

7. A method of installing an underwater muzzle seal according to any of claims 1 to 6, comprising: the method comprises the following steps:

step 1, mounting one end of an air pipe on the side wall of a small sealing chamber after penetrating through a rear end plate wire passing hole, a motor cabin of a cabin body and a large sealing chamber, and connecting the other end of the air pipe with an external air source;

step 2, enabling one end of a motor cable connected with a motor to penetrate through a rear end plate wire passing hole and enter a motor cabin; one end of the signal cable, the pressure sensor and the touch switch are connected penetrates through the rear end plate wire passing hole and the motor cabin and enters the large sealing chamber, and the other ends of the motor cable and the signal cable are connected with the console;

step 3, installing a driving shaft in the motor cabin, installing a motor and connecting a motor cable;

step 4, installing a sealing gasket and a connecting sleeve outside the cabin body;

step 5, mounting a rear end plate on the rear end face of the cabin body, connecting a rear connecting shaft of the connecting sleeve with a rear connecting shaft mounting hole of the rear end plate, and mounting a sealing sleeve in a blast hole connecting hole;

step 6, installing a pull rod;

step 7, installing a one-way valve and a pressure sensor in the small sealed chamber, and connecting a pressure sensor control cable;

step 8, installing a limiting seat in the large sealing chamber, installing a clutch sleeve, rotating the limiting seat to adjust the positions of a limiting groove of the limiting seat, a through hole of the clutch sleeve and a spiral groove of the driving shaft, and installing a pin shaft;

step 9, installing a touch switch, and connecting a touch switch control cable;

step 10, installing a shaft sleeve on the front end plate;

step 11, mounting a limiting ring on the rotating shaft, sleeving a spring on the rotating shaft, and penetrating the rotating shaft into the shaft sleeve;

step 12, mounting a front end plate on the front end surface of the cabin body, and adjusting the position of a limit ring during mounting to ensure that a touch switch can be reliably touched when the cover plate rotates in place;

step 13, installing a baffle at the extending end of the rotating shaft outside the front end plate, and installing a sealing plate in a baffle counter bore before installation;

and 14, mounting lifting bolt on two sides of the cabin.

8. The method of using an underwater muzzle seal according to any of claims 1 to 6, wherein: the method comprises the following steps:

firstly, connecting a gun barrel of an artillery with a connecting hole of a muzzle of a connecting sleeve, and connecting an air pipe with an external air source; when no combat mission is carried out, the console receives a feedback signal of the air pressure sensor and controls the external air source to fill air into the small sealed chamber through the air pipe, so that the air pressure in the small sealed chamber is higher than the external water pressure and is kept in a constant interval;

when the artillery executes a shooting task, the console controls the external air source to continuously fill air into the small sealed chamber through the air pipe; meanwhile, a rotation signal is sent to the motor, the motor rotates to drive the driving shaft to rotate, the driving shaft spiral groove pushes the pin shaft to move along the limiting groove on the limiting seat, and the clutch sleeve is driven to move axially firstly and then rotate around the shaft; in the process of the movement of the clutch sleeve, the clutch teeth of the clutch sleeve are meshed with the clutch teeth of the rotating shaft to push the rotating shaft to carry out axial movement and rotary movement, so that the baffle at the opening part of the ejection opening is driven to be opened; the rotating shaft rotates and simultaneously drives the limiting ring arranged on the shaft to rotate, after the rotating shaft rotates to the position, namely the baffle plate rotates away from the bullet outlet, the boss on the limiting ring touches and presses the contact switch, the contact switch feeds back a door opening in-place signal to the console, the motor stops working and the firing circuit is switched on, the artillery fires the shot, and the shot passes through the bullet passing channel;

after the gun shooting is finished, the console sends a reverse rotation signal to the motor, the motor rotates to drive the driving shaft to rotate, the driving shaft spiral groove pushes the pin shaft to move along the limiting groove on the limiting seat, and the clutch sleeve is driven to firstly perform rotary motion around the shaft and then perform axial motion; the clutch sleeve drives the rotating shaft to rotate while performing rotary motion around the shaft, so that the baffle is driven to rotate to the mouth part of the ejection port; the clutch sleeve moves axially, clutch teeth of the clutch sleeve are disengaged from clutch teeth of the rotating shaft, the rotating shaft moves axially under the action of the spring and drives the baffle plate to press the sealing plate and the bullet outlet, and the bullet passing channel is closed;

the rotating shaft rotates and simultaneously drives the limiting ring arranged on the shaft to rotate and axially move, after the limiting ring moves in place, the inclined surface 5 on the limiting ring touches and presses the contact switch, the contact switch feeds back a door closing in place signal to the control console, the motor stops working, the firing circuit is disconnected, and the gun stops firing; the water entering the small sealing chamber in the artillery shooting process is discharged out of the cabin body through the one-way valve by continuously supplementing gas in the small sealing chamber, after the water discharging process is used for a set time, the console controls the external gas source to stop inflating the small sealing chamber, and the underwater gun muzzle sealing device completes a working process.

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