CN216969940U - Aircraft retraction device with power positioning function - Google Patents

Abstract

The utility model provides an aircraft retraction device with a power positioning function, which comprises a cradle main body, a crane and a navigation control module, wherein the cradle main body comprises a ship-shaped body, and an accommodating space is formed in the ship-shaped body and used for parking an aircraft; the crane is arranged on the mother ship and can drive the ship-shaped body to move; the navigation control module is in signal connection with the crane and comprises an acquisition system, a monitoring system, a control system and an execution system which are arranged on the ship-shaped body, and the utility model solves the problems that the general ocean navigation vehicle has violent relative motion with a mother ship under high sea conditions and is difficult to capture, recover and distribute by adopting a cradle type retraction device with a power positioning function; meanwhile, the cradle type retraction device and the mother ship hoisting device are in flexible connection, so that the cradle type retraction device and the mother ship hoisting device are decoupled in motion, and the retraction device is prevented from being adversely affected by the motion of the mother ship.

Description

Aircraft retraction device with power positioning function

Technical Field

The utility model relates to the field of marine unmanned aircrafts, in particular to an aircraft retraction device with a power positioning function.

Background

In recent years, small-sized marine vehicles have been widely used in scientific research and engineering fields such as marine environmental monitoring, submarine topography scanning, submarine cable laying, deep sea exploration and polar region exploration. The commonly referred small marine craft comprises unmanned surface vehicles, UUV, ROV, AUV, ARV and manned underwater vehicles, and different sensors are carried on the small marine craft according to different tasks, and the design appearance of the small marine craft is different, which brings a lot of difficulties for recycling and laying the craft. The general small-sized marine craft is carried to a working sea area by a mother ship (a scientific investigation ship, an engineering ship and the like) and released, and the craft returns to the periphery of the mother ship and is recovered after completing tasks. The recovery and distribution modes of the marine aircrafts can be divided into a hanging and distributing mode, a slideway mode, a dock cabin mode and the like, and the structures of the mother ships need to be modified, so that the marine aircrafts are distributed for military aircrafts, and most of civil aircrafts and scientific aircrafts are in the hanging and distributing mode. Due to the influence of environmental factors such as offshore wind, wave, current and the like, the aircraft and the mother ship are in continuous shaking motion in the recovery and distribution process, the situations that the aircraft falls off and collides with the ship body often occur, and even the serious events such as damage of the mother ship and the aircraft, loss of the aircraft and the like are caused; for most unmanned surface vessels and deep-sea underwater vehicles, the vehicles need to be landed on to manually solve hooks in the recovery and deployment processes, and the danger coefficient is high. In addition, an ordinary marine vehicle is carried on a deck of a mother ship and is influenced by six-degree-of-freedom motion of the mother ship, so that the marine vehicle is easy to shake and fall off to cause damage.

In the face of the difficulty of marine recovery and deployment of marine aircrafts, in the prior engineering practice, besides selecting time with better sea conditions for operation, common coping strategies also comprise the arrangement of a structure convenient for hanging at the top of the aircraft, the design of a special lifting recovery device and the like. For example, patent document CN108482587A discloses an unmanned boat retrieving and laying system and an unmanned boat retrieving method using the same, which designs a conical positioning boss and a hanging hook structure, and realizes positioning by combining the conical boss structure and the unmanned boat structure, thereby realizing locking of a hook under the condition of no manual assistance, and avoiding dangerous operation of people climbing on the unmanned boat fixing sling. However, the method has no universality for a specially designed aircraft, and is difficult to accurately lift the lifting hook into the boss under severe sea conditions, so that the practicability is limited; for another example, patent document CN105711749B discloses a deployment and recovery method for unmanned surface vehicles, which also designs a conical hanging hammer, and arranges a cable launching system on the unmanned surface vehicle to fix the unmanned surface vehicle and a hook without manual assistance, but the technology has the problem that the conical hanging hammer is difficult to align and fix with the unmanned surface vehicle when the relative motion amplitude of the unmanned surface vehicle and the mother ship is large; for another example, patent document CN113460274A discloses an autonomous AUV recovery/deployment device and an implementation method thereof, wherein a set of gripper structure is designed to replace an original crane of a mother ship, and an AUV (autonomous understeer vessel) is grabbed by the gripper to implement recovery and deployment operations, but the technology actually still does not solve the problems of large relative motion amplitude and difficulty in capturing of the aircraft and the mother ship in the recovery process, and has large modification difficulty and high cost; for another example, patent document CN105223960A discloses an unmanned boat deployment and recovery device, which mainly designs a set of suspension motion compensation devices controlled by a plurality of servo motors, so as to realize the stability of the entire box-shaped unmanned boat deployment structure under the actions of mother ship shaking and wave, and ensure the safety of the unmanned boat deployment process. However, the structure adopted by the technology has a limited adjusting range, and the motion compensation capability slides down under the condition that the device enters water and is influenced by waves and the flexible connection between the device and a crane is realized; for another example, patent document CN105905245B discloses a suspension cage for deploying and retrieving unmanned surface vehicle, which is designed with a buoyancy tank structure to float autonomously, but in the technical design, the suspension cage does not have a propeller device and a power system, so that there are no autonomous positioning and autonomous navigation capabilities, it is difficult to ensure that a vehicle enters the suspension cage when the sea state is high, and the problem that the suspension cage and the vehicle collide with each other, even collide with the hull of a mother ship and damage cannot be avoided. Patent document CN107499460A also proposes a vehicle recovery cage, which adds a remotely operable automatic door structure compared to the former cage, but also has similar problems.

In conclusion, the main unsolved problem of various existing marine aircraft recovery and deployment devices and technologies is that the marine aircraft and the recovery and deployment devices move relative to the mother ship in the recovery and deployment process, so that the sea condition requirement of the aircraft recovery and deployment process cannot be further reduced. Meanwhile, the device design which is over-specialized does not have wide applicability, and can only be used for aircraft with specific design, and the structural design is unreasonable.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model aims to provide an aircraft retraction device with a dynamic positioning function.

The utility model provides an aircraft collecting and releasing device with a dynamic positioning function, which comprises:

the cradle comprises a cradle main body and a cradle locking mechanism, wherein the cradle main body comprises a boat-shaped body, and an accommodating space is formed in the boat-shaped body and is used for parking a vehicle;

a crane, which is arranged on the mother ship and can drive the ship-shaped body to move between the mother ship deck and the collecting and releasing position;

navigation control module, signal connection the crane includes:

a collection system disposed on the boat-shaped body;

the monitoring system comprises a wireless communication module arranged on the ship-shaped body and an upper industrial personal computer connected with the wireless communication module and arranged on a mother ship;

the control system comprises a navigation controller, a remote controller and an emergency controller, and the navigation controller is arranged on the ship-shaped body; the remote controller and the emergency controller are respectively in signal connection with the navigation controller;

an actuation system comprising a thruster means mounted on the boat capable of varying the speed and attitude of the boat, a guide means to control the draught of the boat by means of ballast water, and a ballast means arranged at the end of the accommodation space and having a closed condition and an open condition, the vehicle being able to enter and exit the accommodation space when the guide means is in the open condition, the vehicle being not allowed to enter and exit the accommodation space when the guide means is in the closed condition.

Preferably, the propeller device comprises a plurality of stern longitudinal propellers, bow lateral propellers and electronic speed regulators corresponding to the stern longitudinal propellers and the bow lateral propellers respectively, the stern longitudinal propellers can provide power for longitudinally advancing, longitudinally retreating or turning the ship-shaped body, and the bow lateral propellers can provide power for transversely moving or turning.

Preferably, the guiding device comprises two doors hinged on the port side and the starboard side of the boat-shaped body, a guiding door opening and closing motor capable of driving the two doors to open and close, and a hydraulic pin device capable of locking and unlocking the two doors.

Preferably, the ballast device comprises a plurality of ballast water tanks respectively arranged at the fore part and the aft part of the ship-shaped body and a ballast water pump connected with each ballast water tank.

Preferably, one or more rows of side elastic guides and one or more rows of bottom elastic guides are arranged in the interior of the boat-shaped body along the length of the boat-shaped body, and are used for guiding longitudinal movement of a vehicle and/or limiting transverse movement of the vehicle.

Preferably, the bottom of the boat-shaped body has a bottom cavity that fits the structure of the aircraft itself and a cradle bottom plate that can be removably fixed to the bottom cavity.

Preferably, one or more transverse reinforcing ribs are arranged on the boat-shaped body;

the boat-shaped body is provided with a plurality of lifting lugs;

the bottom of the ship-shaped body is provided with a plurality of navigation fixing holes, and the navigation fixing holes are used for locking the ship-shaped body on the mother ship.

Preferably, the top of the boat-shaped body is provided with a small mark ball or a shell with light reflection or color.

Preferably, the boat-shaped body is made of a metal shell, a metal truss or a buoyancy material.

Preferably, the collection system comprises any one or more of the following components:

a sensor disposed on the boat-shaped body;

the camera is arranged at the top of the boat-shaped body;

a dual-antenna high-precision GPS;

an accelerometer module;

a laser radar arranged on top of the boat-shaped body;

a depth gauge disposed at a bottom of the boat-shaped body.

Compared with the prior art, the utility model has the following beneficial effects:

1. the cradle type retraction device with the dynamic positioning function is adopted, so that the problems that the general marine aircraft moves violently relative to a mother ship under a high sea condition and is difficult to capture, recover and distribute are solved; meanwhile, the cradle type retraction jack and the mother ship hoisting device are in a flexible connection mode, so that the cradle type retraction jack and the mother ship hoisting device are decoupled in motion, and adverse effects on the retraction jack caused by the motion of the mother ship are avoided.

2. The marine aircraft recovery and release device can realize the adjustment of multiple motion degrees of freedom of the position, the posture, the navigation speed and the draft of the device by adopting the navigation control module comprising the acquisition system, the monitoring system, the control system and the execution system, has the functions of dynamic positioning, mother ship navigation, aircraft recovery and release guiding and the like, solves the problems of low efficiency, high risk and high cost caused by manual assistance of hook release and the like in the conventional marine aircraft recovery process, is stable in motion and posture in the docking process of the retraction device, and ensures the safe and efficient recovery and release process under high sea conditions.

3. The utility model solves the problem that the cradle type retraction device generates large-amplitude plane motion due to environmental influence (wind, wave and flow load) and is difficult to realize docking in the docking process of the marine aircraft and the cradle type retraction device.

4. The utility model adopts the detachable slot type bottom empty slot structure and the universal design of a large number of anti-collision elastic guiding devices, can adapt to the submarine body with the sensor and the submarine body without the sensor, is suitable for the recovery and distribution of most offshore aircrafts, avoids the collision damage of the submarine and even the cradle in the recovery process, and has good universality.

5. By adopting the design of the navigation fixing device, the marine unmanned equipment and the retracting device can be reliably fixed on the deck of the mother ship together, and the problem that the marine unmanned equipment and the retracting device slide and fall due to six-degree-of-freedom motion in the navigation process of the mother ship is solved.

6. The utility model limits the motion range of the aircraft in the processes of entering and exiting the cradle device and lifting by adopting the design of the guide device with double guide doors, reduces the difficulty of entering and exiting the cradle device of the aircraft, and ensures the safety of recovery and distribution.

7. By adopting the design of the ballast devices of a plurality of groups of ballast water tanks at different positions, the utility model can realize the self-draft and the adjustment of the gravity center position of the cradle device, is suitable for the recovery and the distribution of aircrafts with different drafts and floating states, and ensures the safety in the recovery, the distribution and the lifting process.

8. According to the utility model, by adopting the external shape design of the floating dock cabin and the plurality of dynamic position control propellers, under the condition that the retraction device is decoupled from the motion of the mother ship but is not unhooked, the stability of the dynamic position and the attitude of the retraction device under the high sea condition is realized, and the efficient and stable retraction and deployment work of the aircraft under the high sea condition is ensured.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic perspective view of the present invention, wherein the guiding device is in a closed position;

FIG. 2 is a schematic perspective view of the present invention, wherein the guiding device is in an open position;

fig. 3 is a schematic side view of the utility model;

FIG. 4 is a schematic top view of the structure of the present invention wherein the cradle floor is not mounted on the boat-shaped body;

FIG. 5 is a side view in axial direction of the present invention with the cradle bottom plate installed on the boat-shaped body;

FIG. 6 is a schematic view of the hoisting process of the retraction device of the present invention;

FIG. 7 is a schematic structural view of the retracting device of the present invention when the sling is slack during lifting;

FIG. 8 is a schematic view of the aircraft launch and launch process of the present invention;

FIG. 9 is a side schematic view of a vehicle with an underslung sensor according to the present invention;

FIG. 10 is a schematic view of the power positioning of the retraction device of the present invention;

fig. 11 is a schematic diagram of a frame structure of a navigation control module in the utility model.

The figures show that:

1-mother ship 109-cradle bottom plate

2-crane 110-cradle bottom plate positioning pin

3-hook 111-ballast tank

4-aircraft 120-accommodation space

5-Sling 200-stern longitudinal thruster

100-Ship-shaped body 201-bow lateral thruster

101-guide 202-guide door opening and closing motor

102-lifting lug 300-navigation controller

103-broadside elastic guide device 301-communication antenna

104-navigation fixed hole 302-camera

105-Hydraulic Pin Assembly 303-marker bead

106-transverse reinforcing rib 304-GPS antenna

107-bottom elastic guide 305-lidar

108-bottom empty groove

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

Example 1:

the utility model provides a vehicle retraction device with a dynamic positioning function, which comprises a cradle main body, a crane 2 and a navigation control module, wherein the cradle main body comprises a boat-shaped body 100, the boat-shaped body 100 is internally provided with an accommodating space 120, the accommodating space 120 is used for parking a vehicle, and the inside of the boat-shaped body 100 is preferably provided with one or more rows of side elastic guiding devices 103 and one or more rows of bottom elastic guiding devices 107 along the length direction thereof, and the side elastic guiding devices 103 and the bottom elastic guiding devices 107 are used for guiding the longitudinal movement of the vehicle 4 when the vehicle enters the accommodating space 120 from the outside and/or limiting the transverse movement of the vehicle 4 when the vehicle is in the accommodating space 120.

The crane 2 is arranged on the mother ship 1 and can drive the ship-shaped body 100 to move between the mother ship deck and the storing position, wherein the ship-shaped body 100 is preferably provided with a plurality of lifting lugs 102 so as to facilitate the connection of the lifting hooks when the crane 2 is used for hoisting; the navigation control module is in signal connection with the crane 2, can control the movement of the crane 2, can acquire the position, the attitude and the movement information of the ship-shaped body 100 and the relative position information between the ship-shaped body 100 and the mother ship 1, and can output corresponding control signals according to set positioning and accompanying navigation parameters to enable the aircraft 4 to be at a set position so as to realize the recovery and/or distribution operation of the aircraft 4.

As shown in fig. 11, the navigation control module includes an acquisition system, a monitoring system, a control system and an execution system, the acquisition system is used for acquiring the position, posture, motion information of the ship-shaped body 100 and the relative position information of the ship-shaped body and the mother ship 1; the monitoring system comprises a wireless communication module arranged on the boat-shaped body 100 and an upper industrial personal computer which is connected with the wireless communication module and arranged on the mother boat 1, wherein the upper industrial personal computer can collect information of the acquisition system in real time through the wireless communication module and can set a relative stable distance parameter and a navigational speed and course parameter between the cradle main body and the mother boat 1; the control system comprises a navigation controller 300, a remote controller and an emergency controller, wherein the navigation controller 300 can output corresponding propeller control signals according to set positioning and navigation accompanying parameters so as to enable the aircraft 4 to be at a set position; the remote controller and the emergency controller are respectively in signal connection with the navigation controller 300, the remote controller is used for remotely controlling the course controller 300, and the emergency controller is used for controlling when the remote controller fails.

Further, the execution system includes a propeller device mounted on the boat 100, the propeller device being capable of changing the speed and attitude of the boat 100, a guide device 101 controlling the draft of the boat 100 by ballast water, and a ballast device, the guide device 101 being disposed at an end of the accommodation space 120 and having a closed state and an open state, the aircraft 4 being capable of entering and exiting the accommodation space 120 when the guide device 101 is in the open state, and the aircraft 4 being not allowed to enter and exit the accommodation space 120 when the guide device 101 is in the closed state.

The propeller device comprises a plurality of stern longitudinal propellers 200, bow lateral propellers 201, electronic speed regulators corresponding to the stern longitudinal propellers 200 and the bow lateral propellers 201, wherein the stern longitudinal propellers 200 can provide power for longitudinal advancing, longitudinal retreating or turning of the ship-shaped body 100, and the bow lateral propellers 201 can provide power for transverse movement or turning.

The guide device 101 comprises two doors hinged on the port and starboard sides of the boat-shaped body 100, a guide door opening and closing motor 202 capable of driving the two doors to open and close, and a hydraulic pin device 105 capable of locking and unlocking the two doors; the ballast means includes a plurality of ballast tanks 111 respectively arranged at the fore and aft portions of the ship-shaped body 100 and a ballast water pump connected to each of the ballast tanks 111.

The bottom of the boat-shaped body 100 is provided with a bottom empty groove 108 matched with the structure of the aircraft 4 and a cradle bottom plate 109 which can be detachably fixed on the bottom empty groove 108, and can be matched through the bottom empty groove 108 when a sensor is hung below the aircraft 4, so that the load of the aircraft 4 in the boat-shaped body 100 is not influenced; one or more transverse stiffeners 106 are disposed on the boat 100 to provide strength to the boat 100 as a whole.

The bottom of the boat 100 has a plurality of navigation fixing holes 104, and the navigation fixing holes 104 are used to lock the boat 100 when the boat 100 is placed on the deck of the mother ship.

Specifically, the acquisition system comprises a sensor, a camera 302, a dual-antenna high-precision GPS304, an accelerometer module, a laser radar 305 and a depth meter, wherein the sensor is arranged on the boat-shaped body 100 and is used for acquiring the position, the posture and the motion information of the boat-shaped body 100 and the relative position information of the boat-shaped body 100 and the mother ship 1; the camera 302 is arranged on top of the boat-shaped body 100; the laser radar 305 is arranged on top of the boat 100; the depth gauge is disposed at the bottom of the boat 100.

The recovery operation of the aircraft with the dynamic positioning function is as follows:

step 101, starting a navigation control module on a ship-shaped body 100, selecting whether to open a bottom empty slot 108 of the ship-shaped body 100 according to the type of a recovered aircraft 4, connecting a crane 2 on a mother ship 1 with the ship-shaped body 100 by using a sling 5, and preparing to perform recovery operation;

step 102, lifting the boat-shaped body 100 through the crane 2, controlling the crane 2 on the mother ship 1 to rotate to lift the boat-shaped body 100 out of the ship, placing the boat-shaped body 100 into water after the boat-shaped body is stable, and in the process, keeping the distance between the gravity center of the boat-shaped body 100 and the side of the mother ship 1 greater than L/2+ D, wherein L is the longitudinal length of the cradle main body, and D is the safe distance, wherein when the step 102 is executed, the executing system is connected through an upper industrial personal computer, and the target position information of the aircraft 4 is input: if the mother ship 1 is in the sea surface anchoring state, setting the distance delta X between the aircraft 4 and the mother ship 1 and the relative course angle delta theta between the aircraft 4 and the mother ship 1; if the mother ship 1 has a certain navigational speed, the navigational speed V of the mother ship 1 should be set so that the aircraft 4 can accompany with the same navigational speed course, wherein the navigational speed of the mother ship 1 is less than or equal to the maximum navigational speed of the ship-shaped body 100.

103, inputting target position information of the aircraft 4 through an upper industrial personal computer of the navigation control module, controlling the crane 2 to continuously release a crane rope, enabling the ship-shaped body 100 to float on the sea surface completely by means of buoyancy of the ship-shaped body, enabling connection between the ship-shaped body 100 and the crane rope to be in a loose state and enabling movement not to be restricted by the crane rope, comparing and calculating thrust which is required to be distributed by a propeller device on an execution system of the navigation control module according to position and attitude information of the ship-shaped body 100, which is obtained by an acquisition system of the navigation control module, with the target position and attitude information, and finally converting the thrust into an accelerator signal of the propeller device, and controlling the propeller device to complete positioning and/or navigation;

step 104, opening a guiding device 101 of the execution system in a remote control mode, and giving out a draught depth and gravity center adjusting signal of the ship-shaped body 100 in a remote control mode according to the draught size and the floating state of the recovered aircraft 4, so that the execution system adjusts the draught and the floating state of the ship-shaped body 100, and the target recovered aircraft 4 can drive into an accommodating space 120 inside the ship-shaped body 100;

105, enabling the target aircraft 4 to drive in autonomously, or manually operating the aircraft 4 to drive in the accommodating space 120 and controlling to close the guiding device 101;

step 106, lifting the boat 100 by the crane 2 so that the vehicle 4 and the boat 100 are lifted out of the water together and finally hoisted to a predetermined storage position on the deck of the mother ship 1; in the process of lifting out water, if the center of gravity of the whole ship-shaped body 100 and the ship-shaped body 4 deviates and stable lifting cannot be realized, lifting is cancelled, the ship-shaped body 100 and the ship-shaped body 4 are put into seawater again, and the lifting operation is performed after the requirement of safe lifting is met by adjusting the center of gravity of the whole ship-shaped body 100 and the whole ship-shaped body 4;

step 107, fixing the boat-shaped body 100 placed at the predetermined storage position, closing the navigation control module of the cradle, and completing the recycling process.

The deployment operation of the aircraft with the dynamic positioning function is as follows:

step 201, starting a navigation control module, unlocking a ship-shaped body 100 placed at a preset storage position on a deck of a mother ship 1, and connecting a crane 2 on the mother ship 1 with the ship-shaped body 100;

step 202, controlling a crane 2 to lift the boat-shaped body 100, rotating the crane 2 to lift the boat-shaped body 100 carrying the aircraft 4 out of the board and then placing the boat-shaped body 100 into water, and keeping the distance between the gravity center of the boat-shaped body 100 and the board side of the mother ship 1 to be larger than L/2+ D in the lifting process, wherein L is the longitudinal length of the cradle main body, and D is a safety distance, in the actual operation, target position information of the aircraft 4 is input on an upper industrial personal computer, and if the mother ship 1 is in a sea surface anchoring state, the distance delta X between the boat-shaped body 100 and the mother ship 1 and the relative course angle delta theta between the boat-shaped body 100 and the mother ship 1 are set; if the mother ship 1 has a certain navigational speed, the navigational speed V of the mother ship 1 should be set so that the aircraft 4 can accompany with the same navigational speed course, wherein the navigational speed of the mother ship 1 is less than or equal to the maximum navigational speed of the ship-shaped body 100.

Step 203, inputting target position information of the aircraft 4 through an upper industrial personal computer of the navigation control module, controlling the crane 2 to continuously release a crane rope, enabling the ship-shaped body 100 to float on the sea surface completely by means of self buoyancy, enabling the connection between the ship-shaped body 100 and the crane rope to be in a loose state and enabling the motion not to be restricted by the crane rope, comparing the self position and attitude information acquired by an acquisition system of the navigation control module with the target position and attitude information and calculating to obtain thrust to be distributed by a propeller device on an execution system of the navigation control module, finally converting the thrust into an accelerator signal of the propeller device, and controlling the propeller device to finish positioning and/or accompanying navigation;

step 204, opening a guiding device 101 of the execution system in a remote control mode, and giving out a draft and gravity center adjusting signal of the ship-shaped body 100 in a remote control mode according to the draft and the floating state of the recovered aircraft 4, so that the execution system adjusts the draft and the floating state of the ship-shaped body 100, and the aircraft 4 in the ship-shaped body 100 is in a completely autonomous sailing state;

step 205, actively controlling the boat 100 to advance through remote control so that the aircraft 4 passively exits the boat 100 from the opened guiding device 101; or the aircraft 4 is controlled to actively exit the boat-shaped body 100 from the opened guiding device 101, and after the aircraft 4 completely leaves the boat-shaped body 100, the guiding device 101 is remotely controlled to be closed and locked again;

step 206, lifting the boat-shaped body 100 by the crane 2 to lift the boat-shaped body 100 off the water surface and finally lifting the boat-shaped body 100 to a preset storage position on the deck of the mother ship 1, in the process of lifting and discharging water, if the center of gravity of the boat-shaped body 100 is found to be shifted and stable lifting cannot be realized, lifting is cancelled and the boat-shaped body 100 is placed into seawater again, the center of gravity of the boat-shaped body 100 is adjusted by remote control again to meet the requirement of safe lifting, and then lifting operation is carried out again;

and step 207, fixing the boat-shaped body 100 placed at the predetermined storage position, closing the navigation control module of the cradle, and completing the recovery process.

Example 2:

this embodiment is a preferred embodiment of embodiment 1.

In this embodiment, the cradle main body includes a boat-shaped body 100, as shown in fig. 1 to 10, a bow of the boat-shaped body 100 has a streamlined flow guiding shape, a stern is square, a bottom of the boat-shaped body is a V-shaped structure with a middle part protruding downwards and two sides being concave upwards, an upward opening of the V-shaped structure is greater than 90 degrees and less than 180 degrees, preferably greater than 120 degrees, a receiving space 120 is formed inside the boat-shaped body 100, and the cradle-shaped receiving space 120 is used for parking an aircraft 4.

The boat 100 may be made of metal hull, metal truss or other buoyant material, and should be strong enough to support the weight of the vehicle 4 and resist certain waves; the guiding device 101 is disposed at the stern portion of the boat-shaped body 100, and has two doors hinged to the port and starboard sides of the boat-shaped body 100, respectively, to form a double-door structure, as shown in fig. 1 and 2, in a closed state and an open state of the guiding device 101, respectively; the locking or unlocking of the guide 101 is achieved by hydraulically pushing out or retracting the dowel pins using a hydraulic pin device 105 when the guide 101 is in the closed state.

A plurality of side elastic guide devices 103 and bottom elastic guide devices 107 are arranged in the boat-shaped body 100 and are mainly made of elastic materials, so that the boat-shaped body 100 can be guided to enter and exit, and the boat-shaped body 100 can be prevented from colliding with the sides and the bottom in the boat-shaped body 100 by means of friction force of the boat-shaped body; at the top edge of the boat 100 are provided 4 or more lifting lugs 102 for crane cable anchorage; a square bottom empty groove 108 is formed in the lower rear part of the boat-shaped body 100 to adapt to measuring instruments suspended below different aircrafts 4, as shown in fig. 4, 8 and 9; the cradle bottom plate 109, which is removable, can be inserted into the slot to completely fill the bottom cavity 108, as shown in fig. 4 and 5, and is secured by bolts using cradle bottom plate positioning pins 110, so that the bottom cavity 108 can be selectively opened or not depending on the type of vehicle 4 being deployed and recovered.

One or more transverse reinforcing ribs 106 are arranged on the boat-shaped body 100, are arranged on the outer side of the complete cross section (non-bottom empty groove part) of the boat-shaped body 100, thicken the cross section of the boat-shaped body 100, play a role in reinforcing the transverse strength of the device and are used for compensating the transverse strength loss of the whole structure caused by the bottom empty groove 108.

The ballast water tank 111 is disposed inside the boat-shaped body 100 in a completely embedded manner, and does not affect the outer shape of the boat-shaped body 100. The plurality of ballast water tanks 111 are arranged, and the plurality of ballast water tanks 111 are respectively located at the fore part and the aft part of the ship-shaped body 100, as shown in fig. 3 and 4, and the draft adjustment and the gravity center adjustment of the cradle main body can be realized by controlling the ballast water pumps on the respective ballast water tanks 111 to pump in or out seawater. The navigation fixing holes 104 are holes formed in the bottom side edges of the boat-shaped body 100, and when the cradle body is parked on the deck of the mother ship 1, the cradle body can be matched with corresponding pin fixing devices on the mother ship 1, and a plurality of pin shafts in the front and the back are inserted into the corresponding navigation fixing holes 104, so that the cradle body is limited to move, as shown in fig. 5.

The navigation control module comprises an acquisition system, a monitoring system, a control system and an execution system. The acquisition system comprises various sensors arranged at each position of the ship-shaped body 100 and used for acquiring the position, the posture and the motion information of the cradle main body and the relative position information of the mother ship 1, and the sensors comprise a camera 302 arranged at the top of the ship-shaped body 100, a double-antenna high-precision GPS304, an accelerometer module IMU, a laser radar 305 arranged at the top, a depth gauge arranged at the bottom of the ship-shaped body 100 and the like.

The monitoring system comprises a short-distance wireless communication module arranged on the boat-shaped body 100 and an upper industrial personal computer arranged on the mother boat 1, wherein the wireless communication module comprises a communication antenna 301, and workers on the mother boat 1 can collect, record and check various sensor information of the acquisition system in real time through the short-distance wireless communication module and can set parameters such as a relative stable distance, a navigational speed and a course between the aircraft receiving and releasing cradle main body and the mother boat 1.

The control system comprises a navigation controller 300 for receiving and releasing the cradle body, a remote controller and an emergency controller, wherein the navigation controller 300 outputs corresponding propeller control signals mainly according to positioning and accompanying navigation parameters set by workers, so that the aircraft is stabilized at a set position (a distance delta X from the mother ship 1, a navigation speed V and a relative course angle delta theta between the aircraft and the mother ship 1 are set). The remote controller can directly carry out manual control on the folding and unfolding cradle of the aircraft, including navigation control, ballast control and guidance door switch control; when the navigation controller 300 fails, the emergency controller can be connected to take over to replace the navigation controller, and only has a basic manual control function, so that the recovery of the retracting cradle of the navigation device in an emergency condition is ensured. The executing system comprises a propeller device, a guiding device and a ballast device, wherein the propeller device comprises a stern longitudinal propeller 200, a bow lateral propeller 201, an electronic speed regulator corresponding to the stern longitudinal propeller 200 and the bow lateral propeller 201 respectively, the stern longitudinal propeller 200 can provide power Fy in the positive and negative directions of a Y axis shown in figure 9, and the turning moment Mxy in the X-Y plane, the bow lateral propeller 201 can provide the power Fx in the positive and negative directions of the X axis and the turning moment Mxy in the X-Y plane, the automatic power positioning function of the cradle can be realized only by 2 bow longitudinal propellers 200 and 1 bow lateral propeller 201 at least at the left and right, the utility model is not limited to the design of 3 propellers, and the positioning function can also be realized by adding more longitudinal and lateral propellers, for example, 3 propellers marked in the figure are only one implementation case of the device.

Further, the guiding device 101 comprises a hydraulic pin device 105 and a guiding door switch motor 202, wherein the guiding door switch motor 202 is located at the hinged connection of the guiding device 101 and the boat-shaped body 100, and the guiding door switch motor 202 is driven to switch by the rotation of the guiding door switch motor 202; the ballast device comprises a ballast water tank, a ballast water pump and other equipment for controlling the draft of the cradle main body through ballast water, and is mainly used for controlling the ballast water pumps of the ballast water tanks at all parts of the cradle main body to pump in or pump out seawater according to draft signals given by a remote controller so as to adjust the draft and the gravity center of the cradle main body.

The four ballast tanks arranged as shown in fig. 3 and 4 are only one embodiment of the device, and more ballast tanks arranged at the bow part, the stern part and the side of the device can also realize the functions of draft and gravity center adjustment; besides, a small marker ball 303 is arranged at the top of the boat-shaped body 100 close to the guiding device 101, and the small marker ball 303 can adopt a reflective or colored shell as required, so that the aircraft 4 can be identified and positioned. The navigation device 4 can obtain the real-time pose information of the device through the small marker ball 303 in the modes of machine vision, optical identification and the like, so that the automatic driving in or out of the cradle is realized. The device does not limit the type of the arranged identification mark, the small marker ball 303 can be replaced by a positioning two-dimensional code or large-area coloring can be performed on the surface of the device according to the recovered functions of the aircraft 4 in the practical application process, and the design of the small marker ball 303 is only one implementation case of the device. In addition, the power supply of the navigation control module can adopt a shipborne lithium battery to supply power or a cable of the mother ship 1 to supply power according to the actual use requirement.

The recovery principle of the marine vehicle is as follows:

step 101, starting a navigation control module on a cradle body of an ocean aircraft; selecting whether to open the cradle bottom empty slot 108 according to the type of aircraft recovered; the lifting hook 3 of the crane of the parent vessel 1 is connected to a plurality of lifting eyes 102 of the cradle body using the slings 5, and the fixing pins on the navigation fixing holes 104 at the bottom of the cradle body are removed, thus completing unlocking and preparing for recovery work.

And 102, lifting the cradle main body of the marine aircraft, lifting the device out of the ship by the crane 2 of the mother ship 1, and slowly putting the device into water after the device does not shake and is relatively stable. In the process, the distance between the gravity center of the cradle body and the broadside of the mother ship 1 is kept to be larger than L/2+ D, wherein L is the longitudinal length of the cradle body, and D is the safety distance (D is not smaller than 0.2L under a third-level sea condition and not smaller than 0.3L under a fourth-level sea condition) so as to ensure that the cradle body does not collide with the hull of the mother ship 1 in the hanging and placing process.

It should be noted that, when step 102 is executed, the staff remotely connects to the execution system on the mother ship 1 through the upper industrial personal computer, and inputs the target stable position information of the marine aircraft: if the mother ship 1 is in a sea surface anchoring state, setting the distance delta X between the mother ship 1 and the mother ship and the relative course angle delta theta between the mother ship 1 and the mother ship; if the mother ship 1 has a certain navigational speed, the navigational speed V of the mother ship 1 is also set, so that the aircraft can accompany with the navigation at the same navigational speed. At the moment, the navigation speed of the mother ship 1 cannot be higher than the maximum navigation speed of the cradle collecting body, and otherwise, the recovery and deployment operation of the aircraft cannot be carried out.

And 103, further releasing the crane rope to enable the aircraft cradle collecting and releasing body to float on the sea surface completely by means of self buoyancy, wherein the connecting sling between the lifting hook 3 and the lifting lug 102 on the aircraft is in a loose state, but the lifting hook 3 and the lifting lug are not unhooked, the cradle body is not restricted by the movement of the lifting hook 3, and the movement of the aircraft cradle collecting and releasing body is decoupled from the movement of the mother ship 1. And starting the cradle main body dynamic position active control system, comparing the navigation control module with the target position and the attitude according to the position and the attitude information of the navigation control module, which are acquired by the acquisition system of the navigation control module, and calculating to obtain the thrust to be distributed by each propeller according to the target position and the attitude according to the target stable position parameters set in the step 103, and further converting the distributed thrust into the throttle signal of each propeller by the execution system to control the propellers to finish positioning or navigation. The two stern longitudinal thrusters 200 can provide longitudinal thrust Fy, and can provide torque Mxy in an X-Y plane through differential rotation of the left thruster and the right thruster; the bow lateral thruster 201 may provide a lateral thrust Fx and it may also generate an X-Y in-plane torque Mxy when performing lateral propulsion. The stern longitudinal thruster 200 and the bow lateral thruster 201 cooperate with each other to maintain the same navigational speed as the mother ship 1 and to stabilize the relative position of the stern longitudinal thruster and the mother ship 1 in the X-Y plane, as shown in fig. 8 and 9.

Step 104, the staff opens the hydraulic pin device 105 in a remote control mode, starts the guide door switch motor, and the two guide doors rotate outwards to about 150 degrees respectively and are provided with trumpet-shaped openings, so that the aircraft can be conveniently accommodated to enter the cradle body, as shown in fig. 2. In addition, according to the draft size and the floating state of the recovered aircraft, the draft depth and the gravity center adjusting signal of the cradle main body are given through the remote controller, so that each ballast water pump pumps in or out seawater, and further the draft and the floating state of the cradle main body are adjusted, so that the target recovered aircraft can drive into the accommodating space 120 in the cradle main body.

And 105, the target aircraft automatically drives in, or manually controls the aircraft to drive to the vicinity of the recovery device, and waits for a recovery command. Further, the aircraft can acquire the relative position and posture information of the two cradle guiding doors by identifying the small mark balls 303 or other identification marks (two-dimensional codes and the like) on the cradle main body and send the information to the aircraft control system in real time, so that the aircraft drives into the cradle main body from the middle of the main guiding door and the auxiliary guiding door. In the process, the guiding device 101, the side elastic guiding device 103 and the bottom elastic guiding device 107 can limit the movement of the aircraft to a certain extent, and the aircraft can be safely driven into the cradle body. After the aircraft drives into the cradle body, the guide door switch motor is remotely started again, the guide door is closed, and the hydraulic pin device 105 is remotely locked.

In step 106, the lifting hook 3 is lifted, the sling between the lifting hook 3 and the cradle lifting lug 102 is again tensioned, and the cradle body and the marine vehicle are lifted together out of the water and finally lifted to a predetermined storage position on the deck of the mother vessel 1. In the process of lifting out water, if the gravity center of the whole vehicle and the cradle main body deviates and stable lifting cannot be realized, lifting is cancelled, the device and the vehicle are put into seawater again, the ballast of each ballast water tank 111 is adjusted through the remote controller again, the gravity center of the whole device and the vehicle is adjusted, the requirement of safe lifting is met, and then lifting operation is carried out. Meanwhile, the side elastic guide device 103 and the bottom elastic guide device 107 on the cradle body can prevent the internal aircraft from damaging the self or the cradle body structure due to shaking and impacting during the recovery process.

And step 107, inserting the fixed pin shaft into the cradle navigation fixing hole 104 again to finish navigation fixing. And (4) separating from the lifting hook 3, closing the navigation control module of the cradle and finishing the recovery process.

The deployment principle of the marine aircraft is as follows:

step 201, starting a navigation control module on a cradle body of an ocean aircraft; the lifting hook 3 of the crane of the mother ship 1 is connected to a plurality of lifting eyes 102 of the cradle using slings 5, and the fixing pins on the navigation fixing holes 104 at the bottom of the cradle are removed, thus completing unlocking and preparing for recovery work.

Step 202, lifting the marine aircraft to receive and release the cradle main body, lifting the device out of the ship board by the crane 2 of the mother ship 1, and slowly putting the device into water after the device does not shake and is relatively stable. Keeping the distance between the gravity center of the cradle main body and the broadside of the mother ship 1 to be larger than L/2+ D, wherein L is the longitudinal length of the cradle main body, and D is a safety distance (D is not smaller than 0.2L under a tertiary sea condition and not smaller than 0.3L under a quaternary sea condition), so as to ensure that the cradle main body does not collide with the hull of the mother ship 1 in the hoisting and placing process, wherein in the step 202, a worker remotely connects an execution system on the mother ship 1 through an upper industrial personal computer, inputs target position information of an ocean vehicle, and if the mother ship 1 is in a sea anchoring state, the distance delta X between the worker and the mother ship 1 and the relative course angle delta theta between the worker and the mother ship 1 are set; if the mother ship 1 has a certain navigational speed, the navigational speed V of the mother ship 1 is also set, so that the aircraft can accompany with the navigational speed with the same navigational speed. At the moment, the navigational speed of the mother ship 1 is set to be smaller than the maximum navigational speed of the cradle body, otherwise, the recovery and deployment operation of the aircraft cannot be carried out.

Step 203, the crane rope is further released, so that the cradle body collected by the aircraft floats on the sea surface completely by means of self buoyancy, at the moment, the connecting sling between the lifting hook 3 and the lifting lug 102 on the aircraft is in a loose state, but the lifting hook and the lifting lug are not unhooked, the cradle body is not restricted by the movement of the lifting hook 3, and the movement of the cradle collected by the aircraft is decoupled from the movement of the mother ship 1. And starting the cradle main body dynamic position active control system, comparing the navigation control module with the target position and the attitude according to the position and the attitude information of the navigation control module per se acquired by the acquisition system according to the target stable position parameters set in the step 103, calculating to obtain the thrust to be distributed by each propeller, and further converting the distributed thrust into an accelerator signal of each propeller by the execution system to control the propellers to finish positioning or navigation. The two stern longitudinal thrusters 200 can provide longitudinal thrust Fy, and simultaneously can provide torque Mxy in an X-Y plane through differential rotation of the left stern longitudinal thruster 200 and the right stern longitudinal thruster 200; the bow lateral thruster 201 may provide a lateral thrust Fx and it may also generate an X-Y in-plane torque Mxy when performing lateral propulsion. The stern longitudinal thruster 200 and the bow lateral thruster 201 cooperate with each other to maintain the same navigational speed as the mother ship 1 and to stabilize the relative position of the stern longitudinal thruster and the mother ship 1 in the X-Y plane, as shown in fig. 8 and 9.

Step 204, the staff opens the hydraulic pin device 105 through remote control, starts the guide door switch motor 202, and the two guide doors rotate outwards to open to about 150 degrees respectively, and have a trumpet-shaped opening, and the opening width is required to ensure that the internal aircraft can be pulled out. In addition, according to the draft and the floating state of the released aircraft, draft and gravity center adjusting signals of the cradle main body are given through the remote controller, so that each ballast water pump pumps in or out seawater, the draft and the floating state of the cradle are adjusted, and the internal aircraft is in a state of completely autonomous navigation.

Step 205, actively controlling the cradle body to advance through remote control, so that the aircraft passively exits the cradle body from the opened guiding device 101; or to command the aircraft to actively exit the cradle body from the opened guiding device 101. After the aircraft completely leaves the cradle body, the guide door switch motor is started again in a remote control mode, the guide door is closed, and the hydraulic pin device 105 is locked in a remote control mode.

At step 206, the lifting hook 3 is lifted, the sling 5 between the lifting hook 3 and the cradle lifting lug 102 is again tensioned, and the cradle body is lifted off the water surface and finally lifted to a predetermined storage position on the deck of the mother vessel 1. In the process of lifting water, if the gravity center of the cradle body deviates and stable lifting cannot be realized, lifting is cancelled, the cradle body is put into seawater again, the ballast of each ballast water tank 111 is adjusted through the remote controller again, the gravity center of the cradle body is adjusted, the requirement of safe lifting is met, and then lifting operation is carried out again.

And step 207, inserting the fixing pin shaft into the cradle navigation fixing hole 104 again to finish navigation fixing. And (4) separating from the lifting hook 3, closing the navigation control module of the cradle and finishing the recovery process.

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

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. An aircraft retraction device having a powered positioning function, comprising:

a cradle body comprising a boat-shaped body (100), said boat-shaped body (100) having inside an accommodation space (120), said accommodation space (120) being for parking a vehicle (4);

a crane (2) arranged on the mother vessel (1) and capable of driving the boat-shaped body (100) to move between the mother vessel deck and the storage position;

a navigation control module, signal connected to the crane (2), comprising:

an acquisition system arranged on the boat-shaped body (100);

the monitoring system comprises a wireless communication module arranged on the ship-shaped body (100) and an upper industrial personal computer connected with the wireless communication module and arranged on the mother ship (1);

a control system comprising a navigation controller (300), a remote controller and an emergency controller, the navigation controller (300) being arranged on the boat-shaped body (100); the remote controller and the emergency controller are respectively in signal connection with the navigation controller (300);

execution system comprising a thruster device mounted on the boat (100) and able to vary the speed and attitude of the boat (100), a guide device (101) to control the draught of the boat (100) by means of ballast water, and a ballast device, the guide device (101) being arranged at the end of the housing space (120) and having a closed condition and an open condition, the vehicle being able to enter and exit the housing space (120) when the guide device (101) is in the open condition, the vehicle being not allowed to enter and exit the housing space (120) when the guide device (101) is in the closed condition.

2. The vehicle launch and launch device with dynamic positioning function according to claim 1, characterised in that said thruster means comprise a plurality of stern (200), bow (201) and stern (200), bow (201) lateral thrusters, respectively corresponding electronic speed regulators, said stern (200) being able to provide the power for longitudinal advance, longitudinal retreat or turning of the boat (100), said bow (201) lateral thrusters being able to provide the power for transverse movement or turning.

3. The vehicle launch device with dynamic positioning function according to claim 1, characterized in that said guiding device (101) comprises two doors hinged on the side of the boat (100) on the port and starboard sides, a guiding door opening and closing motor (202) able to drive the two doors to open and close, and a hydraulic pin device (105) able to lock and unlock the two doors.

4. The vehicle launch and launch device with dynamic positioning function according to claim 1, characterised in that said ballast means comprise a plurality of ballast tanks (111) arranged respectively at the bow and at the stern of said boat-shaped body (100) and a ballast pump connected to each of said ballast tanks (111).

5. The vehicle stowing device with dynamic positioning function according to claim 1, characterized in that the interior of the boat (100) has arranged along its length one or more rows of side springers (103), one or more rows of bottom springers (107) for guiding the longitudinal movement of the vehicle and/or limiting the lateral movement of the vehicle.

6. The vehicle launch and launch device with dynamic positioning function according to claim 1, characterised in that the bottom of said boat-shaped body (100) has a bottom slot (108) that fits the structure of the vehicle itself and a cradle bottom plate (109) that can be removably fixed on said bottom slot (108).

7. The dynamic positioning enabled vehicle launch device according to claim 1 wherein the boat-shaped body (100) has one or more transverse stiffeners (106) disposed thereon;

the boat-shaped body (100) is provided with a plurality of lifting lugs (102);

the bottom of the ship-shaped body (100) is provided with a plurality of navigation fixing holes (104), and the navigation fixing holes (104) are used for locking the ship-shaped body (100) on a mother ship.

8. The vehicle launch and launch device with dynamic positioning functionality according to claim 1 wherein said boat shaped body (100) has a marker bead (303) or a reflective or colored skin on top.

9. The dynamic positioning enabled aircraft launching device according to claim 1, characterized in that the boat shaped body (100) is made of metal hull, metal truss or buoyancy material.

10. The powered positioning vehicle launch and launch device according to claim 1 wherein said acquisition system comprises any one or more of the following:

a sensor arranged on the boat-shaped body (100);

a camera (302) arranged on top of the boat-shaped body (100);

a dual antenna high precision GPS (304);

an accelerometer module;

a lidar (305) arranged on top of the boat-shaped body (100);

a depth gauge arranged at the bottom of the boat-shaped body (100).

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