CN1048946C - Launching recovery system of autonomous submersible - Google Patents
Launching recovery system of autonomous submersible Download PDFInfo
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- CN1048946C CN1048946C CN95110142A CN95110142A CN1048946C CN 1048946 C CN1048946 C CN 1048946C CN 95110142 A CN95110142 A CN 95110142A CN 95110142 A CN95110142 A CN 95110142A CN 1048946 C CN1048946 C CN 1048946C
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
- B63B2027/165—Deployment or recovery of underwater vehicles using lifts or hoists
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- Earth Drilling (AREA)
Abstract
This device belongs to underwater robot control system, and this system comprises female ship of support, salvage lifeboat, repeater, recovery system and underwater robot (autonomous underwater vehicle), supports female ship and relays in the same direction as hookup through wire rope, supports simultaneously to be equipped with the cable winch on the female ship and passes through cable and repeater hookup, the repeater passes through neutral mooring rope and receives and releases the ware hookup, the during operation controls through sonar system and receiving and releasing ware to the no cable underwater robot and retrieves, the advantage: the system has reasonable integral design scheme, compact structure and reliable operation, and can recover the underwater cordless underwater robot with the water depth of 30-50 meters under the condition of 4-level sea.
Description
The invention belongs to the under-water robot technical field.
At present, under-water robot has cable to develop into unmanned no cable by nobody, dive deeply mostly at 1 km or thousands of rice and even darker, in dark marine site like this, sea situation is very severe often, be difficult to break off relations on the sea and hook is finished water recovery operation down with canoe or frogman, the following water of autonomous for this reason formula submersible (unmanned no cable underwater robot) reclaims the concern that obtains countries in the world, seeks the following water recovery method and the following water reclamation system thereof of autonomous formula submersible.
General under-water robot marine operation system should comprise the support lash ship, following water reclamation system and autonomous formula submersible itself, have only when wherein any one component part all improves very much, entire job system ability normal operation, therefore, should be from practical application, aspect such as economic benefit and safe in operation is considered total system comprehensively, wherein, support lash ship not only will have certain between deck space also can be carried to the marine operation place to autonomous formula submersible, possess enough crane capacities, the more important thing is and support this stability under the operation sea situation of lash ship, when supporting that lash ship produces pitching under the operation sea situation, when rolling and heave, the responsiveness of lash ship has determined the size of these live loads to water under the autonomous formula submersible and recovery influence.In order to make lash ship with the fine cooperation of autonomous formula submersible, should be according to the yardstick of autonomous formula submersible, weight, working depth, operation sea situation etc. is selected the support lash ship of different scale and ship type for use.
Comparing under the severe sea condition, operation will be selected sizable support lash ship (or special-purpose lash ship) usually for use, and the hull design that aims at water and recovery under the autonomous formula submersible arranged, can guarantee to have the location and the capacity of orientation (casting anchor or dynamic positioning) of certain precision, significantly pitching does not have under the operation sea situation, rolling and heave, but this large-scale lash ship cost and operating costs are quite expensive, at first, for any water reclamation system down, sea situation is a principal element, especially in sea situation more than 4 grades, because wind speed, the influence of wave, lash ship can produce very big pitching, rolling and heave.Remove autonomous formula submersible is hung the motion that the meeting generation is difficult to expect in the process at the water surface between decks, bring outside the safety hazard, the butt joint with distributor in removal process causes great difficulty to autonomous formula submersible.
For solving the recovery of autonomous formula submersible, purpose of the present invention provides a kind of underwater recovery system for autonomous diving device, employing uses the mode of the autonomous formula submersible of distributor folding and unfolding and device to constitute water reclamation system down greater than the depth of water place of 1/2 wavelength, and actv. has solved the recovery problem of autonomous formula submersible.
Design plan of the present invention is achieved in that
The following water reclamation system of this submersible is by supporting lash ship, cable winch and repeater reach distributor composition under water, as shown in Figure 1), support that on the lash ship loop wheel machine being housed connects with repeater by steel rope, supporting lash ship to be provided with cable winch simultaneously connects with repeater by cable, repeater connects with distributor by neutral heaving pile, operation has autonomous formula submersible (unmanned no cable underwater robot) in the water, its detailed structure is: cable winch: move under water for making distributor, dispensing and the no cable underwater robot of recovery, water surface deck should have cable to connect with repeater, and by the heaving pile between repeater and the distributor to distributor power supply with realize information transfer, its structure of cable winch is by actuating device, formations such as cloth cable device support and cable drum are (as Fig. 6, shown in Figure 7).Winch support one side is equipped with HM Hydraulic Motor and connects with cable drum through reductor, because cable drum and the cable of reeling on it have bigger rotor inertia, stable working during for assurance winch coiling and dispensing cable, rotating speed is even, infinite speed variation, winch adopts hydraulic-driven, oil sources provides pressure oil to drive oily Ma Yun, rotate through 1: 36 planetary gear speed reducing mechanism deceleration rear drive cable drum, hand change over valve control oil motor gyratory directions, make reel just, reverse turn, finish the coiling or the dispensing of cable, the retarder speed end is equipped with hydraulic brake and produces a lock torque, when cable tension during greater than the safety pulling force, slipping of brake is broken cloth cable device to prevent cable; Miniature gear oil motor drive sprocket, after slowing down at 1: 2.21, make two parallel leading screws realize rotating synchronously, the rotation of operating personal actuating hand change over valve respective cable reel, cloth cable frame is done left and right horizontal and is moved, and makes cable evenly entirely be wound on the reel successively; Cable drum, cable size d=28mm, dispensing extreme length 100M, drum diameter D=560mm, long L=560mm, D/d=180, cable has enough bending springs, can prevent the cable winding fatigue fracture, cable can be reeled 3 layers, the reel maximum speed is 15rpm, make the folding and unfolding cable speed be 30m/min to the maximum, so that the speed that the hangs folding and unfolding cable of respective repeaters, distributor is by framework, buoyancy folding and unfolding arm, the U type hangs frame, hydraulic efficiency pressure system, folding and unfolding arm oil cylinder, U-shaped frame oil cylinder, compositions such as electron steering cabin, and carry additionally The Cloud Terrace, Underwater Camera, lamp under water, depth transducer, magnetic compass, the recovery equipment such as indicating device that put in place, simple in structure on arranging, technology is reasonable, the principle of practical reliability and good looking appearance.(as Fig. 2, Fig. 3, shown in Figure 4).
The base of distributor is a framework, its middle frame is the base portion (as shown in Figure 8) of distributor, mainly form by external frame and inner frame, inner frame is that no cable underwater robot reaches " seat " after reclaiming before emitting, play the role of positioning, external frame and inner frame are welded into one, both sides are welded with buoyancy folding and unfolding arm and bracket end and U-shaped is housed hangs frame support and their cylinder support, the most of branch arranged framework internal buoyancy folding and unfolding arm outside by the entrained instrument and equipment of distributor, the framework upper left and right symmetrically is arranged two buoyancy folding and unfolding arms, buoyancy folding and unfolding arm is by outside folding and unfolding arm framework, the centre is a buoyant mass, adjustable buoyant mass, wooden Charge, wooden chuck and crashproof buffer strip are formed, (as shown in Figure 9), buoyancy folding and unfolding arm plays positioning action, it guarantees under-water robot stable position in distributor, and the buoyant mass of the arm of folding and unfolding simultaneously offers the enough buoyancy of whole distributor.
Buoyancy folding and unfolding arm framework is by LD
2Aluminum alloy 50 * 50 * 5 square tubing are welded, adjustable buoyant mass of each folding and unfolding arm intermediate arrangement, buoyant mass is arranged in adjustable buoyant mass both sides, the oad of buoyant mass and adjustable buoyant mass is identical, promptly alleviated the weight of folding and unfolding arm, can guarantee the buoyancy that provides enough again, and the neat harmony of outward appearance, simultaneously, the buoyant material that can load fritter when buoyancy is not enough in the adjustable buoyant mass has enough buoyancy to guarantee total system, and wooden chuck works to hold tightly " under-water robot " in removal process, buoyancy folding and unfolding arm is under hydraulic oil cylinder driving, rotate around support, open or closure, decontrol or clamp " under-water robot ".
U-shaped hangs frame, be the two ends place of device at distributor, form by two the essentially identical U-shaped framves in front and back, its end is provided with clutch mechanism, two U-shaped framves are packed up when hanging, and overlap locked automatically, after Heave Here on it is pinned by the repeater locking bolt, distributor can be put into water, open clutch mechanism during recovery, two U-shaped framves by hydraulic oil cylinder driving to distributor two ends upsets horizontalization, buoyancy folding and unfolding arm is opened, form the recovery state, (its structure as shown in figure 10), distributor is provided with longitudinal thruster, longitudinal thruster is in frame rear portion, be symmetrically arranged, athwartships propeller is symmetric arrangement before and after framework, be provided with hydraulic efficiency pressure system on the distributor simultaneously: two oil cylinders that are symmetrically arranged between buoyancy folding and unfolding arm and the framework are to drive the folding and unfolding arm, four oil cylinders of symmetric arrangement hang frame to drive U-shaped between front and back U-shaped frame and the framework, the oil sources motor, compensator, Lu oil device and clack box are in base of frame, successively by after arrange forward, place before the electron steering cabin is arranged in the base of frame, camera, lamp and The Cloud Terrace are arranged in frame front under water, magnetic compass is arranged in frame front, depth transducer is arranged in the middle of the framework, the architectural feature of repeater: repeater is mainly by framework, the heaving pile draw off gear, hang compositions such as locking bolt device, (as shown in figure 12), be the open-frame structure, for preventing that foreign material are invaded repeater inside in the seawater, influence each mechanism's normal operation, in the framework, set up two-layer protective metal net plate outward separately, the repeater framework mainly is made up of inner frame and external frame, size (the diameter of framework, high) mainly by the length overall of heaving pile and hang the load decision, satisfying under the prerequisite that row's cable requires and structural strength requires, should adopt the little scantling of structure of trying one's best, inner frame is mainly used to install, fixing heaving pile draw off gear and hang the locking bolt device, therefore, it also is the direct load parts that hang load, for reducing the repeater size, the circular groove girder steel excircle dimension that alleviates heavy inner frame is identical with external frame, be connected by bolt, for increasing the bending modulus of channel airfoil plate, along the circumferential direction add 12 equably at open end and strengthen gusset, annular channel-section steel opening is outside, purpose is easy for installation, and framework is a welded structure.
External frame connects inner frame, and constitute the heaving pile emission quotas simultaneously with inner frame, variation according to used heaving pile length, row's cable space can be adjusted the plate lifting and regulate, and external frame top is connected with a hanger rope, and the bottom is connected with inner frame, therefore also be direct load parts, for making the load rectangular distribution, external frame is upper and lower two circular groove girder steels, is weldingly connected with four channel-section steel columns; For increasing rigidity, add one "+" word support beam and arrange evenly that along circumference four hoisting rings are to connect hanger rope at the upper, annular channel beam, along the circumferential direction add 12 reinforced ribs equably at lower annular channel beam opening part, to increase the bending modulus of channel airfoil plate, hang locking bolt device such as Figure 15, shown in 16, hang the locking bolt device mainly by cylinder, connecting rod mechanism, the card melon, hang head (taper hook), indicating device puts in place, compositions such as support, its connection is the top cylinder that is, it below the cylinder connecting rod mechanism, connecting rod mechanism one end connects claw, the other end connects connecting rod 1 by the B axle, 2, the termination of heaving pile is the taper hook, and the indicating device that puts in place is made up of a normally-open normally-close type magnet-switch and magnet etc.When the distance between switch and magnet is increased to a certain degree, promptly can provides an electric signal opposite, and be presented on the water surface control desk with closure state.
Advantage of the present invention: the unit design scheme is reasonable, compact conformation, reliable, this system architecture is not having special-purpose lash ship to reach under 4 grades of sea situations, the depth of water reclaims autonomous formula under-water robot for 30～50 meters, and control system is flexible, and equipment investment is little, function is complete, can be used as the various controls of submersible under water and uses.
The present invention is provided by following examples and accompanying drawing.
Fig. 1 is the underwater recovery system for autonomous diving device overall construction drawing;
Fig. 2 is a underwater recovery system for autonomous diving device distributor structure principle chart;
Fig. 3 is a underwater recovery system for autonomous diving device distributor structure orthographic drawing;
Fig. 4 closes up constructional drawing for the underwater recovery system for autonomous diving device distributor;
Fig. 5 closes up multiview drawing for the underwater recovery system for autonomous diving device distributor;
Fig. 6 is a underwater recovery system for autonomous diving device warping winch constructional drawing;
Fig. 7 is a underwater recovery system for autonomous diving device warping winch multiview drawing;
Fig. 8 is a underwater recovery system for autonomous diving device distributor frame construction drawing;
Fig. 9 is underwater recovery system for autonomous diving device distributor folding and unfolding arm configuration figure;
Figure 10 hangs shelf structure figure for underwater recovery system for autonomous diving device distributor U-shaped;
Figure 11 is the worn-out opening structure figure of underwater recovery system for autonomous diving device distributor folding and unfolding arm;
Figure 12 is underwater recovery system for autonomous diving device repeater figure;
Figure 13 is a underwater recovery system for autonomous diving device repeater driver train schematic diagram;
Figure 14 is a underwater recovery system for autonomous diving device repeater count schematic diagram of device;
Figure 15 hangs bolt structure figure for the underwater recovery system for autonomous diving device repeater;
Figure 16 hangs the locking bolt multiview drawing for the underwater recovery system for autonomous diving device repeater.
It is labeled as: support lash ship 1.; 2. loop wheel machine; 3. cable winch; 4. hang steel rope; 5. cable; 6. repeater; 7. autonomous formula submersible; 8. neutral heaving pile; 9. distributor; 10. buoyancy folding and unfolding arm; 11.U shape frame; 12. open-frame; 13. automatic lap fuse mechanism; 14. pick up camera; 15. electronics bay; 16. hydraulic efficiency pressure system; 17. depth transducer; 18. submersible machine; 19. lifting; 20. vertical pusher: 21. forward-reverse propelling units; 22. magnetic compass; 23. lamp under water; 24. The Cloud Terrace; 25. HM Hydraulic Motor; 26. oil motor fixed cover; 27. cable drum; 28. slip ring cover cover plate; 29. slip ring side sleeve assembly; 30. cloth cable device actuating device; 31. cloth cable device support; 32. slip ring cover base plate; 33. Hydraulic Station; 34. winch bearing; 35. base; 36. backing plate; 37. inner frame; 38. outside frame; 39. heaving pile draw off gear; 40. framework; 41. hang the locking bolt device; 42. flower wheel; 43. drive wheel; 44. worm type of reduction gearing; 45. worm screw; 46. motor; 47. worm gear; 48. counting magnet; 49. heaving pile; 50. drive wheel; 51. counting magnet-switch; 52. cylinder; 53. claw; 54. axle A; 55. connecting rod mechanism; 56. axle C; 57. connecting rod 1; 58. connecting rod 2; 59. axle B; 60. support; The indicating device 61. put in place.
Overall structure is by supporting lash ship, and recovery system is formed under water, and its working process is illustrated in conjunction with the accompanying drawings.During following water, lash ship 1, loop wheel machine 2 is sling by the deck with repeater 6 and with the distributor that is the state of hanging 9 (under-water robot is sitting in the withdrawer) of repeater lock together, move on to lash ship 1 outboard, dispensing hanger rope 4, with repeater 6, distributor 9, under-water robot 7 is applied in the device 30～50 and adopts depth of water place (greater than 1/2 wavelength), while cable winch 3 corresponding dispensing cables 5, operating personal is opened the pneumatic locking bolt of repeater and is discharged heaving pile, after distributor is born the free repeater certain distance of no cable underwater robot, control desk control distributor hydraulic efficiency pressure system, open automatic clutch mechanism, the downward respectively upset horizontalization of front and back two U-shaped framves 11, the arm of buoyancy folding and unfolding subsequently 10 opens, and no cable underwater robot is swum out of, and drives towards the operation place.
When no cable underwater robot fulfils assignment the need recovery, this moment, distributor was in the same depth of water substantially with repeater 6, distributor 9 following current depthkeeping orientations, with repeater discharge out be pull stretching, after no cable underwater robot is thrown and is carried come-up, utilize sonar directing to enter the TV field of search, after waiting to find the heaving pile of string adularescent buoyant spheres, no cable underwater robot automatic tracking finds distributor along heaving pile, two white annulus discerning again on the distributor are seated in the distributor by the top by the no cable underwater robot of camera 14 guiding, handle control desk control distributor hydraulic efficiency pressure system the buoyancy arm is regained, turn on the U-shaped frame 11, and overlap mutually, repeater reclaims heaving pile, the gas-operated lock bolt-lock is lived distributor, and the take-up simultaneously of loop wheel machine and cable winch is with repeater, distributor and no cable underwater robot rise on the lash ship deck together.
Water reclamation system under the submersible platform formula, by repeater distributor is placed below the operation sea situation 1/2 wavelength depth of water, distributor can directly not be subjected to the influence of abominable water conditions, the heave of lash ship, rolling, pitching motion can cause the catenary motion of repeater, but repeater is with being linked to each other by nearly 100 meters neutral heaving pile between the distributor, therefore, the excitation that causes of lash ship is very little to the influence of distributor.Distributor itself is equipped with that 22 horsepowers propelling unit 21 is done it to advance, retreated, turning operation, 21 horsepower of propelling units 20 move up and down, do the depthkeeping and the directed control of certain precision by pressure sensor, magnetic compass, might make distributor keep more stable pose, so that dock with no cable underwater robot in certain depth of water.
Be system's draw off gear principle of work below: the heaving pile draw off gear mainly is made up of driver train, counting assembly and automatic cable laying machine structure, driver train then comprises drive motor 46, first-stage worm gear worm screw 47,45 retarders and drive wheel 43, flower wheel 42 etc., as shown in figure 13; Counting assembly then is made up of the magnet 48 and the magnet-switch 51 that are loaded on the flower wheel, as shown in figure 14.
During take-up, motor just changes, the single-stage worm type of reduction gearing that by speed ratio is 1: 30 is given drive wheel with transmission of power, flower wheel is under the effect of spring pressure, clamp heaving pile with drive wheel, producing friction force F rubs, simultaneously, for increasing the take-up pulling force, drive wheel is made toothed wheel, under the effect of spring pressure, drive the heaving pile buoyant spheres by the gear teeth, upwards lift heaving pile, because the tension of heaving pile buoyant spheres makes heaving pile have certain rigid, its by heaving pile guide cover and effect at top deflection lid under, make heaving pile deflection, along the ellipsoid at top lid curved downwards around, thereby can be automatically equably with heaving pile, cloth comes by interior in an orderly manner, the annular cloth cable interval that outside frame constitutes, flower wheel motion with heaving pile under the effect that F rubs is rotated, the moving circle of revolution, counter switch is write down a number, and each number is then shown the heaving pile withdrawal or is emitted 0.61 meter.
During take-up, distributor should cooperate heaving pile draw off gear upward movement, to reduce heaving pile folding and unfolding resistance.
During cable laying, the motor counter-rotating, situation is removed by F and is rubbed and the drive of the gear teeth to the heaving pile buoyant spheres with above-mentioned opposite, descends to the certain pulling force of heaving pile generation thereby distributor also will start propelling unit, and heaving pile is pulled out.
Distributor principle of work: when distributor reclaims, the take-up of heaving pile draw off gear, the taper hook that is fixed on the heaving pile enters its guide cylinder and upwards clashes into driving lever, drive on the magnet-switch head disengaging magnet and move, provide electric signal simultaneously, meaning that distributor has reclaimed puts in place, at this moment open pneumatic system, drive monosymmetric cylinder, promoting connecting rod drive claw is upwards upset of standard shaft with the A point, after the claw locking face is up to the standard the position, promptly locked taper hook, connecting rod 1,2 one-tenth horizontal linears, and with axle B, the connecting shaft line of C overlaps, constitute two power bar structures, the taper hook acts on the vertical power of locking face, can be born jointly by the horizontal force of vertical power that acts on fixed rotating shaft A and fixed rotating shaft B, thereby reach self-locking, because cylinder piston rod is not had application force, as long as therefore avoid the maloperation of cylinder, this bolt structure is a safety, insurance.
Distributor when dispensing, the operation cylinder, the piston rod of pulling back makes claw axially go up upset around A, breaks away from the taper hook, heaving pile draw off gear cable laying at this moment, distributor starts propelling unit and descends the repeater of can dissociating.
The locking bolt device of this structure, not very big extraneous resistance is drawn in all in the release of piston rod, only be to overcome the gravitational moment of movement parts self and the friction moment of rotating shaft, therefore system pressure is less demanding, simultaneously, because piston rod is not subjected to the external force of any direction during locked position, therefore the pressure maintaining performance to system does not have special requirement.
The repeater operation principle: repeater directly overhangs under water depth of water place greater than 1/2 wavelength by the hanger rope of the system of hanging, during operation at sea, when repeater dispensing under-water robot distributor, open earlier and hang locking bolt, by heaving pile draw off gear cable laying, distributor is swum high repeater, and keeps in touch by neutral heaving pile and repeater, and then implements the dispensing work of no cable underwater robot; Waiting not have the cable underwater robot operation finishes, after distributor reclaims no cable underwater robot, drive towards repeater in the lump, at this moment heaving pile draw off gear take-up, repeater can when treating that distributor puts in place, make distributor and repeater interlocking by hanging locking bolt according to the signal of control desk under water, stay where one is, pending further orders, or regain in the lump by the system of hanging.
Claims (7)
1. underwater recovery system for autonomous diving device, it is characterized in that this recovery system forms by supporting lash ship (1), cable winch (3) and repeater (6) to reach under water distributor (9), its connection is to support on the lash ship (1) loop wheel machine (2) to be housed, connect with repeater (6) by steel rope (4), support simultaneously lash ship (1) to be provided with cable winch (3) and connect with repeater (6) that repeater (6) connects with distributor (9) by neutral cable (8) by cable (5).
2. by the described recovery system under water of claim 1, it is characterized in that supporting cable winch on the lash ship (1) by actuating device, cloth cable device support (31) and cable drum (27) constitute, its connection is HM Hydraulic Motor (25) to be housed through 1: 36 planetary reducer tie cable reel in winch support (31) one sides, hand change over valve is equipped with in the side, connects with cloth cable frame in good time.
3. by the described recovery system under water of claim 1, it is characterized in that distributor is by framework (11), buoyancy folding and unfolding arm (10), open-frame (12), hydraulic efficiency pressure system (16), compositions such as electronic machine ship, and carry additionally The Cloud Terrace (24), Underwater Camera (14), lamp (23) under water, depth transducer (17), magnetic compass equipment such as (22), its middle frame is the base portion of distributor, form by outside frame (38) and inner frame (37), inner frame is located for the location that no cable underwater robot reaches before emitting after reclaiming, and outside frame and inner frame are welded into one, and both sides are welded with buoyancy folding and unfolding arm.
4. by claim 1,3 described recovery systems, it is characterized in that left and right symmetrically is arranged two buoyancy folding and unfolding arms (10) on the framework, this buoyancy folding and unfolding arm (10) is by outer folding and unfolding arm framework, middle buoyant mass, adjustable buoyant mass, wooden Charge, wooden chuck and crashproof buffer strip are formed, connect by rotating shaft between buoyancy folding and unfolding arm and the support, and connect, can open or closed the rotation with oil cylinder.
5. by claim 1,3 described recovery systems, it is characterized in that the U-shaped on the distributor hangs the two ends that frame (11) is placed on distributor, form by two the essentially identical U-shaped framves in front and back, its end is provided with clutch mechanism, two U-shaped framves are packed up when hanging, and overlap locked automatically, lifting on it (19) is after being pinned by the repeater locking bolt, distributor can be put into water, open clutch mechanism during recovery, two U-shaped framves are flat to distributor two ends upset amount by hydraulic oil cylinder driving, and buoyancy folding and unfolding arm is open, form the recovery state.
6. by claim 1,3 described recovery systems, it is characterized in that the distributor frame rear portion is equipped with two longitudinal thrusters (21), and about butt joint arrange, be equipped with before and after the framework heavy to propelling unit (20), symmetric arrangement before and after being.
7. by claim 1,3 described recovery systems, it is characterized in that the buoyancy folding and unfolding arm (10) of distributor (9) and push away two oil cylinders that are symmetrically arranged between the frame, four oil cylinders of symmetric arrangement between front and back U-shaped frame and the framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110142A CN1048946C (en) | 1995-04-05 | 1995-04-05 | Launching recovery system of autonomous submersible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110142A CN1048946C (en) | 1995-04-05 | 1995-04-05 | Launching recovery system of autonomous submersible |
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| Publication Number | Publication Date |
|---|---|
| CN1132710A CN1132710A (en) | 1996-10-09 |
| CN1048946C true CN1048946C (en) | 2000-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95110142A Expired - Fee Related CN1048946C (en) | 1995-04-05 | 1995-04-05 | Launching recovery system of autonomous submersible |
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| CN (1) | CN1048946C (en) |
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| CN2124203U (en) * | 1992-02-28 | 1992-12-09 | 王慕州 | Popular science vessel for scientific research, traveling in sea and submarine engineerings |
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