CN111924738B - Lifting winch for emergency recovery operation of manned submersible - Google Patents

Abstract

The application discloses a promote winch for emergent recovery operation of manned submersible, including promoting winch subassembly, hydraulic motor, promote winch subassembly and include: an annular boss is arranged on the winding drum, a first bearing cover plate is arranged on the left side of the annular boss, and a blind hole is formed above the first bearing cover plate; the thin-wall bearings are arranged in parallel, bearing inner rings of the thin-wall bearings are arranged above the annular boss, bearing outer rings of the thin-wall bearings are arranged below the pulley, and the connection mode between the bearing inner rings of the thin-wall bearings and the annular boss is a unilateral shaft shoulder positioning mode; a threaded long hole is formed in the left side of the pulley, a fastening screw pin is installed in the threaded long hole, and the pulley can rotate on the winding drum after the fastening screw pin is screwed out of the blind hole; the second bearing cover plate is arranged on the right side of the pulley to limit the thin-wall bearing. Through the technical scheme in this application, the integrated used pulley that sets up emergent recovery on the reel of current lifting winch improves the emergent security and the efficiency of retrieving of submersible.

Description

Lifting winch for emergency recovery operation of manned submersible

Technical Field

The application relates to the technical field of diving equipment, in particular to a lifting winch for emergency recovery operation of a manned submersible.

Background

Deep sea science is one of the important directions at the front of science, and deep sea science research depends on technical means and equipment support. The manned submersible is particularly important as deep diving operation equipment, and when the manned submersible works, a special hoisting system is needed to lay the submersible from a deck to the water surface or recover the submersible from the water surface to a deck of a mother ship by using a hoisting winch.

The manned submersible is large in weight and appearance, so that the manned submersible can be operated under severe sea conditions frequently, and the comprehensive influence of wind wave flow in the recovery process enables the submersible and the working mother ship to have large-amplitude relative motion. In addition, the problems of system power loss, oil leakage, component failure and the like can also occur in the operation process, and at the moment, the manned submersible vehicle needs to be recovered in an emergency mode.

In the prior art, in order to carry out emergency recovery on the manned submersible when the lifting winch fails, an emergency recovery device is usually arranged independently, and when the manned submersible is not used, the manned submersible is placed in a designated area on a mother work ship to occupy a limited space on the mother work ship; when in use, the manned submersible needs to be temporarily assembled, thereby not only reducing the emergency recovery efficiency of the manned submersible, but also causing the waste of the existing resources.

Disclosure of Invention

The purpose of this application lies in: the lifting winch is structurally optimized, and pulleys for emergency recovery are integrated on a winding drum of the existing lifting winch, so that the lifting winch is quickly converted into an emergency recovery mode, the safety and efficiency of emergency recovery of the submersible are improved, and the life safety of submersible equipment and a diver is ensured.

The technical scheme of the application is as follows: the utility model provides a promote winch that is used for emergent recovery operation of manned submersible, this promote winch including promoting winch subassembly, speed reducer, hydraulic motor, hydraulic control system, and speed reducer and the hydraulic motor setting that links to each other in proper order are at the both ends that promote winch subassembly, and it includes to promote winch subassembly: the device comprises a winding drum, pulleys, a thin-wall bearing, a first bearing cover plate and a second bearing cover plate; the winding drum is provided with an annular boss, a first bearing cover plate is arranged on the left side of the annular boss, at least three blind holes are arranged above the first bearing cover plate at equal intervals, and the first bearing cover plate is used for limiting the thin-wall bearing; the pulley is characterized in that a plurality of thin-wall bearings are arranged in parallel, bearing inner rings of the thin-wall bearings are arranged above the annular boss, bearing outer rings of the thin-wall bearings are arranged below the pulley, the thin-wall bearings are used for supporting the pulley, and the connection mode between the bearing inner rings of the thin-wall bearings and the annular boss is a unilateral shaft shoulder positioning mode; at least three thread long holes are formed in the left side of the pulley at equal intervals, a fastening screw pin is installed in each thread long hole, the other end of each fastening screw pin is inserted into a blind hole of the first bearing cover plate, and after the fastening screw pin is screwed out of the blind hole, the pulley can rotate on the winding drum under the action of external force; the second bearing cover plate is arranged on the right side of the pulley and used for limiting the thin-wall bearing.

Among any above-mentioned technical scheme, further, pulley left side top is provided with the gear groove along the circumferencial direction, promotes the winch subassembly and still includes: a speed measuring sensor; the left side in the pulley top is installed to the tacho sensor, and the induction zone of tacho sensor is just to the gear groove, and the tacho sensor is used for counting the rotational speed of the quantity in order to calculate the pulley through the gear groove of induction zone in the predetermined time quantum, and wherein, gear groove surface packing has epoxy.

Among any above-mentioned technical scheme, further, it includes two sets of hydraulic control system to promote the winch, and the symmetry sets up in hydraulic motor's both sides, and hydraulic motor connects in hydraulic control system's first pipeline and second pipeline, and hydraulic control system includes the emergent operating valves that two sets of symmetries set up, and emergent operating valves includes: four longitudinal stop valves and one transverse stop valve; the transverse stop valve is connected between the first pipeline and the second pipeline in parallel; after two liang of series connections of four vertical stop valves, establish ties respectively in first pipeline and second pipeline, establish ties in two sets of emergency operation valves and be connected with first emergent pipeline between two vertical stop valves of first pipeline, establish ties in two sets of emergency operation valves and be connected with the emergent pipeline of second between two vertical stop valves of second pipeline.

In any one of the above technical solutions, further, the hydraulic control system further includes: a winch control valve bank and an energy accumulator valve bank; the winch control valve group comprises an electromagnetic valve, a balance valve and a proportional overflow valve, wherein the output end of the electromagnetic valve is connected to a first pipeline and a second pipeline respectively, the input end of the electromagnetic valve is connected to a pressure oil pipeline and an oil return pipeline respectively, the electromagnetic valve is used for adjusting the conduction state between the input end and the output end, the balance valve is connected in series with the second pipeline, a pilot control valve of the balance valve is connected to the first pipeline, the balance valve is used for forming controlled flow resistance in the second pipeline to balance load weight when a winch lifting assembly is in a cable laying working condition, the proportional overflow valve is connected between the first pipeline and the second pipeline in parallel, the proportional overflow valve is used for adjusting the overflow pressure value between the second pipeline and a hydraulic motor to limit the highest pressure of the hydraulic motor, and the winch control valve group is used for controlling the direction and the flow of hydraulic oil flowing into the hydraulic motor; the accumulator valve group is used for supplementing oil to the first pipeline and the second pipeline.

In any one of the above technical solutions, further, the system further includes: a normally closed spring brake, a throttle valve and a shuttle valve; the normally closed type spring brake is connected in series between the speed reducer and the hydraulic motor, and the control end of the normally closed type spring brake is connected to the output end of the shuttle valve through the throttle valve; the shuttle valve is connected in parallel between the first pipeline and the second pipeline.

In any one of the above technical solutions, further, when the system is in a submarine recovery state and it is determined that the tension of the cable is large, the proportional relief valve is configured to be the first gear, so that hydraulic oil flowing into the hydraulic motor through the second pipeline overflows from an overflow port of the proportional relief valve according to a predetermined flow rate, where the predetermined flow rate is determined by a pressure range corresponding to the first gear and the tension of the cable.

In any one of the above technical solutions, further, the accumulator valve block includes: the system comprises a pressure reducing valve, a sequence valve and two accumulators which are arranged in parallel; one end of the pressure reducing valve is connected to an oil supplementing pipeline of the system, the other end of the pressure reducing valve is connected to the oil inlet end of the sequence valve, and the sequence valve is used for supplementing oil to the energy accumulator in an under-pressure state; the oil outlet end of the sequence valve is connected with an energy accumulator which is arranged in parallel, and the energy accumulator is connected with one end of the hydraulic motor after being sequentially connected with the check valve and the stop valve in series.

The beneficial effect of this application is:

according to the technical scheme, the integrated pulley is arranged on the winding drum of the lifting winch, extra installation space is not occupied, when the lifting winch cannot work, an external winch or a winch can be used, an emergency mooring rope (or a main hoisting cable or an external winch or a winch) is matched, the manned submersible vehicle is used for emergency recovery operation, and the safety of equipment and the safety of the underwater vehicle are improved. In addition, the original hoisting winch is fully utilized, the learning difficulty of operators is reduced, and a feasible standby scheme is provided for emergency recovery of the manned submersible.

In this application, set up emergency operation valves in hydraulic control system, through the on-off operation of different stop valves in the emergency operation valves, keep apart trouble winch valve unit or trouble hydraulic motor, can when the operation is retrieved in the cloth putting, the unexpected trouble that the tackle subassembly appears is promoted in the reply, puts into emergency work, and the maintenance of equipment that significantly reduces and dive ware latency improve dive ware emergency rescue's efficiency, ensures equipment and personnel's safety.

In the embodiment, a winch control valve group and an energy accumulator valve group are further arranged in the hydraulic control system, an electromagnetic valve, a balance valve and a proportional overflow valve are arranged in the winch control valve group, the proportional overflow valves at different gears are arranged while the lifting or lowering operation of the winch is controlled, the hydraulic oil pressure in a pipeline is adjusted, and then the hydraulic control system is combined with a conventional electric control system to adjust the working parameters of the proportional overflow valve at the gear, so that the constant-tension tensioning and high-speed motion following of the main hoisting cable under different sea conditions are realized, the impact oscillation of the submersible in the water outlet process is obviously reduced, and the safety of equipment and the safety of underwater personnel are improved.

Drawings

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

FIG. 1 is a schematic illustration of a lifting winch for manned submersible emergency recovery operations according to one embodiment of the present application;

FIG. 2 is a schematic view of a drum of a lift winch according to one embodiment of the present application;

FIG. 3 is a schematic view of a pulley and thin wall bearing installation according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a hydraulic control system according to an embodiment of the present application.

Wherein, 101-bracket, 102-luffing cylinder, 103-lifting winch component, 104-swing hanger, 105-main hoisting cable, 106-anti-swing device, 107-manned submersible, 108-speed reducer, 109-hydraulic motor, 200-winch control valve group, 201-solenoid valve, 202-balance valve, 203-proportional overflow valve, 300-accumulator valve group, 301-pressure reducing valve, 302-sequence valve, 303-accumulator, 304-stop valve, 305-check valve, 400-emergency operation valve group, 401-longitudinal stop valve, 402-transverse stop valve, 403-first emergency pipeline, 404-second emergency pipeline, 501-shuttle valve, 502-throttle valve, 503-normally closed spring brake, 601-rotation speed sensor, 602-pulley, 603-screw, 604-second bearing cover plate, 605-thin-walled bearing, 606-set screw pin, 607-first bearing cover plate, 608-reel.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

As shown in fig. 1, the present embodiment provides a lifting winch for manned submersible emergency recovery operation, the lifting winch includes a lifting winch assembly 103, a speed reducer 108, a hydraulic motor 109, and a hydraulic control system, wherein the speed reducer 108 and the hydraulic motor 109 connected in sequence are disposed at two ends of the lifting winch assembly 103, and the hydraulic motor 109 is connected to a first pipeline and a second pipeline of the hydraulic control system.

Specifically, the bracket 101 is mounted on a stern deck of a working mother ship on which a man-riding submersible 107 is mounted, the bracket 101 swings by a luffing cylinder 102 at the rear side thereof, the lifting winch assembly 103 is mounted on a swing hanger 104, and the swing hanger 104 is connected to a cross beam of the bracket 101 by an anti-swing device 106 to reduce the swing of the lifting winch assembly 103. A main hoist cable 105 is wound around a drum of the hoisting winch assembly 103, and a connection end of the main hoist cable 105 is passed through the swing hanger 104, so that the manned submersible 107 can be hoisted by controlling the rotation of the drum.

In the laying and recovery operation of the manned submersible vehicle 107, the luffing cylinder 102 is driven by a conventional electric control system, so that the bracket 101 is swung to an outboard or inboard operating point, the lifting winch 103 is driven to receive and release the main hoisting cable 105 to hoist the manned submersible vehicle 107, and the anti-swing device 106 is used for realizing the state stabilization of the manned submersible vehicle 107 in the transfer process.

In this embodiment, in order to realize the emergency recovery of the man-powered vehicle in such a situation when the above-mentioned hoisting winch has a serious failure, such as the hydraulic motor is disabled, a set of pulleys is integrated on the drum of the hoisting winch assembly 103, and the emergency recovery of the man-powered vehicle is realized by the set of pulleys cooperating with the external winch, the winch or the main hoist cable 105 on the existing drum (to provide the external force required by the pulleys), in which case the hoisting winch assembly 103 includes: drum 608, pulley 602 and thin-walled bearing 605; an annular boss is arranged on the winding drum 608, a first bearing cover plate 607 is arranged on the left side of the annular boss, at least three blind holes are arranged above the first bearing cover plate 607 at equal intervals, and the first bearing cover plate 607 is used for limiting the thin-wall bearing 605;

the thin-wall bearings 605 are arranged in parallel, the inner bearing rings of the thin-wall bearings 605 are arranged above the annular boss, the outer bearing rings of the thin-wall bearings 605 are arranged below the pulley 602, and the thin-wall bearings 605 are used for supporting the pulley 602; the connection between the inner ring of the thin-wall bearing 605 and the annular boss is a unilateral shoulder positioning mode. Adopt unilateral shaft shoulder locate mode for the shaft shoulder structure has higher intensity, helps annular boss can bear pulley axial working load, and is convenient for process and installation.

At least three threaded long holes are formed in the left side of the pulley 602 at equal intervals, a fastening screw pin 606 is installed in each threaded long hole, the other end of the fastening screw pin 606 is inserted into a blind hole of the first bearing cover plate 607, and after the fastening screw pin 606 is screwed out of the blind hole, the pulley 602 can rotate on the winding drum 608 under the action of external force. Wherein, the right side of pulley 602 is installed second bearing apron 604, and second bearing apron 604 is used for spacing thin wall bearing 605.

Specifically, as shown in fig. 2 and 3, the lifting winch assembly includes: a rotation speed sensor 601, a pulley 602, a screw 603, a second bearing cover plate 604, a thin-wall bearing 605, a set screw 606, a first bearing cover plate 607 and a winding drum 608.

The thin-wall bearings 605 are arranged in parallel, the bearing inner rings of the thin-wall bearings 605 are arranged above the annular boss on the winding drum 608 in a unilateral shoulder positioning mode, the bearing inner rings are fixed by the aid of screws 603 distributed on the circumference, the first bearing cover plate 607 is fixed to the left side of the annular boss, the first bearing cover plate 607 is tightly attached to the left side of the thin-wall bearings 605, the thin-wall bearings 605 are limited, the thin-wall bearings 605 are used for supporting the pulleys 602, and three blind holes are formed in the outer side of the first bearing cover plate 607 at equal intervals along the circumference.

Similarly, the outer ring of the thin-walled bearing 605 is mounted below the pulley 602 by means of single-side shoulder positioning, and the second bearing cover plate 604 is fixed to the right side of the pulley 602 by circumferentially distributed screws 603, so as to limit the thin-walled bearing 605.

3 threaded holes are formed in the left side of the pulley 602 at equal intervals along the circumference, namely, the threaded holes correspond to blind holes in the first bearing cover plate 607 and are screwed into the fastening screw pins 606 respectively, one ends of the fastening screw pins 606 are threaded heads, the other ends of the fastening screw pins are cylindrical heads and the middle of the screw is machined in four aspects so as to be clamped.

Under the premise that the hoisting winch can be normally used, the fastening screw pin 606 is positively screwed into the blind hole, the pulley 602 and the winding drum 608 are fixed into a whole, and the rotation of the winding drum 608 is controlled by a hydraulic control system, so that the retraction and release operation of the manned submersible vehicle is realized.

When emergency recovery is required, particularly the winding drum 608 cannot normally rotate, at this time, the field operator reversely rotates the fastening screw 606 out of the blind hole, so that the pulley 602 can independently rotate, and at this time, an emergency hoisting cable is wound around the pulley 602 by matching with an external winch or winch, so that emergency lifting of the recovery manned submersible is realized, and the safety of equipment and personnel is ensured.

Further, for the rotational speed of control pulley, pulley 602 left side top is provided with the gear groove along the circumferencial direction, promotes the winch subassembly and still includes: a speed measurement sensor 601; the speed measuring sensor 601 is installed on the left side above the pulley 602, an induction area of the speed measuring sensor 601 is right opposite to the gear groove, the speed measuring sensor 601 is used for counting the number of the gear grooves passing through the induction area in a preset time period so as to calculate the rotating speed of the pulley 602, and epoxy resin is filled on the surface of the gear groove.

Specifically, gear grooves are machined in the top of the single side wall of the rope groove of the pulley 602 along the circumferential direction and matched with the speed measuring sensor 601 to detect the rotating speed, and all the gear grooves are filled with epoxy resin and smooth in grinding of the outer surface, so that abrasion of the cable rope is reduced. The speed measuring sensor 601 is installed on the swing hanging bracket or the winch base, the speed measuring sensor 601 adopts the Hall effect principle, the rotation of the gear is detected through electromagnetic induction to count and measure the speed, and the distance between the induction surface of the speed measuring sensor and the top edge of the rope groove gear is about 1.5-3 mm.

The hoisting winch drum integrates the pulley by using a thin-wall bearing, so that the overall dimension of the pulley is greatly reduced, and the problem that an independent emergency recovery pulley cannot be installed on a starboard in the upper space of the swing hanger is solved; the pulley and the winding drum are connected/disconnected by adopting a fastening screw pin mode, so that the safety and reliability are realized, the operation is convenient, and the requirements of normal use and emergency use are met; the speed measuring gear is integrated with the side edge of the rope groove, and can adapt to working conditions of winch speed measurement (insertion of a clinch bolt) and pulley speed measurement (disengagement of the clinch bolt).

In this embodiment, a hydraulic control system with an emergency recovery function is further provided, and the control system mainly includes: the winch control valve group, the emergency operation valve group and the energy accumulator valve group are connected in series, and the mooring rope in the hoisting winch can be pre-tightened by constant tension through the winch control valve group and the energy accumulator valve group so as to reduce large impact load on the mooring rope in the process that the manned submersible breaks away from the sea surface.

For the emergency recovery function of the hydraulic control system, a failure of the hoisting winch may occur during the retraction operation of the manned submersible, and at this time, the manned submersible needs to be recovered in an emergency in order to ensure the equipment safety and the personnel safety of the manned submersible.

As shown in fig. 4, the hoisting winch includes two sets of hydraulic control systems symmetrically disposed on both sides of the hydraulic motor 109, and the hydraulic control systems further include two sets of symmetrically disposed emergency operation valve sets 400, and the emergency operation valve sets 400 include: four longitudinal shut-off valves 401 and one transverse shut-off valve 402; the transverse shutoff valve 402 is connected in parallel between the first pipeline and the second pipeline; after four vertical stop valves 401 are two liang of series connections, establish ties respectively in first pipeline and second pipeline, establish ties in two sets of emergent operating valves 400 and be connected with first emergent pipeline 403 between two vertical stop valves 401 of first pipeline, establish ties in two sets of emergent operating valves 400 and be connected with the emergent pipeline 404 of second between two vertical stop valves 401 of second pipeline.

Specifically, in order to deal with the failure of the lifting winch 103 caused by the accidental failure of the hydraulic motor and the winch control valve group 200 on one side of the lifting winch, and realize the emergency recovery operation of the manned submersible, an emergency operation valve group 400 is introduced into the system, at the moment, the lifting winch comprises two groups of symmetrically arranged hydraulic control systems and two groups of symmetrically arranged emergency operation valve groups 400, wherein the emergency operation valve group 400 is connected in series between a first pipeline and a second pipeline.

When the single-side winch control valve group fails, after the failure winch control valve group is determined, the two lower parts of the four longitudinal stop valves connected in series on the failure valve group side are closed, the failure winch control valve group is isolated from the hydraulic motor, and the hydraulic motor is supplied with hydraulic oil through the winch control valve group on the other side, so that the full-function operation of the hoisting winch is realized. At this time, it should be noted that, in consideration of the valve bank and pipeline overflow capacity, the maximum hoisting speed of the winch should be reduced to 50% -70%.

When the hydraulic motor of the unilateral winch breaks down, if the hydraulic motor can still rotate, the two upper parts of the four longitudinal stop valves which are connected in series on the side of the failure valve bank are closed, the transverse stop valve between the two longitudinal stop valves is opened, the faulty hydraulic motor rotates along with the longitudinal stop valve, the hoisting winch is controlled by the hydraulic motor, the winch control valve bank and the like on the other side, and the full-function operation of the winch can be realized. At this time, it should be noted that the maximum hoisting speed of the hoisting winch should be reduced to 50% to 70% in consideration of the operation capacity of the hydraulic motor.

After the emergency recovery operation is completed, the stop valves in the corresponding side energy accumulator valve groups are closed, the hydraulic plugs are used for plugging the pipelines, and at the moment, the fault hydraulic motor can be detached.

If the hydraulic motor can not rotate, two upper parts of the four longitudinal stop valves on the failure side and the stop valves in the corresponding energy accumulator valve groups are closed at the same time, and after the failed hydraulic motor is disassembled, the lifting winch is controlled by the hydraulic motor on the other side, the winch control valve group and the like, so that the full-function operation of the winch is realized.

Through the lifting winch assembly provided with the pulleys and the hydraulic control system with the emergency operation valve group in the embodiment, the lifting winch in the embodiment has good emergency recovery capacity, and the equipment safety and the personnel safety of the manned submersible are guaranteed.

For the constant tension pretension of the cable, the manned submersible 107 and the mother ship have larger amplitude relative movement because the manned submersible 107 is often subjected to the combined influence of wind and wave currents in the process of deploying and retracting. In particular, during recovery, the cables tend to have a large impact load during the release of the submersible vehicle 107 from the sea, and therefore constant tension pretensioning of the cables in the hoisting winch is required to ensure equipment safety of the submersible vehicle 107.

In this embodiment, on the basis of a conventional electric control system, a hydraulic control system is provided to adjust the flow rate of the hydraulic oil flowing into the hydraulic motor 109, so as to control the hoisting winch 103 and realize constant tension pre-tightening of the cable. The hydraulic control system includes: a winch control valve block 200 and an accumulator valve block 300; the winch control valve group 200 comprises an electromagnetic valve 201, a balance valve 202 and a proportional overflow valve 203, the output end of the electromagnetic valve 201 is connected to the first pipeline and the second pipeline respectively, the input end of the electromagnetic valve 201 is connected to the pressure oil pipeline P and the oil return pipeline T respectively, the electromagnetic valve 201 is used for adjusting the conduction state between the input end and the output end, and the winch control valve group 200 is used for controlling the direction and the flow of hydraulic oil flowing into the hydraulic motor 109.

Specifically, the conduction states of the solenoid valve 201 include two, and the first conduction state is: the pressure oil pipe P is communicated with the second pipe, the oil return pipe T is communicated with the first pipe, at this time, the hydraulic oil in the pressure oil pipe P flows into the port a of the hydraulic motor 109 through the second pipe, the hydraulic oil in the first pipe flows into the oil return pipe T, and the hydraulic motor performs cable retracting movement.

The second on state is: the pressure oil pipeline P is communicated with the first pipeline, the oil return pipeline T is communicated with the second pipeline, at this time, hydraulic oil in the pressure oil pipeline P flows into the port B of the hydraulic motor 109 through the first pipeline, hydraulic oil in the second pipeline flows into the oil return pipeline T, and the hydraulic motor makes cable laying movement.

In this embodiment, the balancing valve 202 is connected in series with the second pipeline, the pilot control valve of the balancing valve 202 is connected to the first pipeline, and the balancing valve 202 is used for forming a controlled flow resistance in the second pipeline to balance the weight of the load (the manned vehicle 107) when the lifting winch assembly 103 releases the main hoist cable 105, i.e. in the cable releasing condition, so as to prevent the hydraulic motor 109 from moving out of control or instability, and the balancing valve 202 is fully opened in the cable releasing condition so as to open the oil path.

In this embodiment, the proportional relief valve 203 is connected in parallel between the first pipeline and the second pipeline, and the proportional relief valve 203 is configured to dynamically adjust a relief pressure value between the second pipeline and the hydraulic motor 109 to limit a highest pressure of the a-port pipeline of the hydraulic motor 109, so as to implement constant tension control and pressure limiting protection.

Specifically, proportional relief valve 203 includes a pressure range of two gears, and the first gear is set to be a low gear pressure, such as 50-170 bar, and the second gear is set to be a high gear pressure, such as 250 bar.

When the submersible is normally lifted, the pressure set value of the proportional relief valve 203 is high-grade pressure. After the manned submersible 107 is cabled, when the constant tension cable is tightened, the proportional relief valve 203 is lowered to a low-level pressure.

By arranging the proportional relief valve 203, the overflow amount of the proportional relief valve 203 can be controlled by using a conventional electric control program and combining the gear and the cable tension set by the proportional relief valve 203. On one hand, the overflow amount can be automatically adjusted within a selected gear range according to the sea condition or the use experience on site.

On the other hand, the device can also be combined with a cable tension sensor or a hydraulic pressure sensor, and the overflow amount is adjusted in real time by utilizing a conventional closed-loop feedback algorithm in a gear range so as to ensure that the cable tension of the main suspension cable 105 is in a preset range, meet the cable tensioning requirement of the manned submersible vehicle 107 under different sea conditions, tighten the constant tension of the cable and ensure the equipment safety of the manned submersible vehicle 107 in the recovery process.

The conventional electric control system is utilized to carry out the operation of the lifting winch, when the lifting winch 103 is normally retracted and extended, the proportional overflow valve 203 is firstly configured to be high-grade pressure, and the displacement of the hydraulic motor is configured to be the maximum displacement. The conducting state of the electromagnetic valve 201 is adjusted through a conventional electric control system to supply oil to the hydraulic motor in different directions, and the hydraulic motor is controlled to rotate in the forward direction or the reverse direction, namely the winch 103 is lifted to release or retract cables.

If the solenoid valve 201 is configured in the first conducting state (cable releasing), the pressure oil line P is communicated with the first line, the oil return line T is communicated with the second line, and the hydraulic oil enters the port B of the hydraulic motor through the first line. At the same time, the hydraulic oil in the first line also enters the normally closed spring brake 503 via the throttle 502 of the shuttle valve 501, opening it. At this time, the conventional electronic control system controls the hydraulic motor to drive the speed reducer 108 to move, so that the hoisting winch 103 can stably unwind the cable.

If the solenoid valve 201 is configured to be in the second conduction state (cable retracting), at this time, the pressure oil pipeline P is communicated with the second pipeline, the oil return pipeline T is communicated with the first pipeline, and the hydraulic oil flows into the second pipeline through the bypass check valves arranged at the two ends of the balance valve 202 and enters the port a of the hydraulic motor, so that the oil circuit is smooth under the cable retracting working condition. At this time, the conventional electronic control system controls the hydraulic motor to drive the speed reducer 108 to move, so that the cable is stably wound on the hoisting winch 103.

When the system (lifting winch 103) is in the submersible recovery state, the proportional relief valve 203 is configured to a low range pressure, and the displacement of the hydraulic motor is configured to a smaller displacement, such as 15% to 25% displacement, which combined setting provides the high speed, low load condition requirements required for constant tension.

Further, when the system is in the submarine recovery state and it is determined that the cable tension is large, the proportional relief valve 203 is configured to be in the first gear (low-gear pressure) so that the hydraulic oil in the pressure oil line P, which flows into the hydraulic motor 109 through the second line, overflows from an overflow port of the proportional relief valve 203 at a predetermined flow rate (overflow amount), wherein the predetermined flow rate is determined by the pressure range corresponding to the first gear and the cable tension.

In particular, a tension sensor may be provided on an existing cable to detect cable tension. In the recovery state of the submersible, if the cable tension is too high, the hydraulic motor is required to run reversely, namely, the cable is converted from cable collection to cable discharge, and since the proportional overflow valve 203 is configured to be in the first gear and the tension of the external cable is too high, the cable is automatically dragged backwards and the hydraulic motor 109 is caused to run reversely. The tension sensor is arranged on the cable, the tension of the cable is introduced in real time, the set value of the proportional overflow valve 203 is finely adjusted in a closed loop mode, and the constant tension of the cable is accurately controlled.

Hydraulic oil between the port A of the hydraulic motor and the balance valve 202 flows out through the proportional overflow valve 203, the winch is lifted to quickly release the cable until the tension is reduced to a required range, and meanwhile the accumulator 303 supplies oil to the port B of the hydraulic motor to prevent the motor from being damaged due to air suction.

In this embodiment, the accumulator valve block 300 is used for supplementing oil to the first pipeline and the second pipeline, wherein the accumulator valve block 300 includes: a pressure reducing valve 301, a sequence valve 302 and two accumulators 303 arranged in parallel; one end of the pressure reducing valve 301 is connected to an oil supplementing pipeline S of the system, the other end of the pressure reducing valve 301 is connected to an oil inlet end of the sequence valve 302, the sequence valve 302 is used for supplementing oil to the accumulator 303 in an under-pressure state, and the under-pressure state of the accumulator 303 can be determined by measuring the pressure in the accumulator 303 through a pressure sensor arranged in the accumulator 303.

The outlet end of the sequence valve 302 is connected to an accumulator 303 provided in parallel, and the accumulator 303 is connected to one end of the hydraulic motor 109 after being connected to a check valve 305 and a stop valve 304 in series in this order.

Specifically, the oil supplementing pipeline S continuously supplements oil for the energy accumulator 303 through the pressure reducing valve 301 and the sequence valve 302 to ensure that the energy accumulator 303 is in a usable state at any time, and the energy accumulator 303 and the check valve 305 supplement oil for the first pipeline and the second pipeline (the pipeline between the hydraulic motor and the balance valve 202) to reduce the influence caused by leakage and air suction of the hydraulic motor and ensure that the load (the hoisting winch 103) is controlled and stable. The shut-off valve 304 is only used to isolate the accumulator 303.

Further, the system further comprises: a normally closed spring brake 503, a throttle valve 502, and a shuttle valve 501; a normally closed type spring brake 503 is connected between the speed reducer 108 and the hydraulic motor 109 in series, and the control end of the normally closed type spring brake 503 is connected to the output end of the shuttle valve 501 through a throttle valve 502; the shuttle valve 501 is connected in parallel between the first and second lines.

Specifically, a normally closed spring brake 503 is used as a brake device of the hydraulic motor 109, and forms a brake circuit together with the throttle valve 502 and the shuttle valve 501. When the winch performs the reversing operation of receiving/releasing, pressure oil in the pressure oil pipeline P is introduced into the brake loop, so that the brake opening function is ensured to be available.

When the manned submersible vehicle 107 is recovered, after the cable (the main suspension cable 105) is hung by a frogman and the manned submersible vehicle 107, the cable is in a loose and tensioning alternate state under the influence of wind waves in the stage before the manned submersible vehicle 107 goes out of water, and at the moment, the constant tension tightening operation of the cable is carried out, so that the cable is prevented from being broken due to huge impact caused by direct hoisting, and the possibility of damaging equipment of the manned submersible vehicle 107 exists. After the constant tension of the mooring rope is tightened, when the manned submersible 107 and the mother ship are influenced by sea waves and move relatively greatly, the winch (the hoisting winch assembly 103) can realize rapid retraction and release actions under the action of the proportional overflow valve 203 at a low gear, and the constant tension of the mooring rope is maintained along with the relative movement of the two. For example, when manned submersible 107 is pushed up by ocean waves, the cable is slack and the tension is reduced, the winch can quickly tighten the cable; when the manned submersible 107 descends along with sea waves and the cable is tight and the tension is suddenly increased, the winch can quickly release the cable, so that the tension of the cable is kept stable, and the cable is prevented from breaking.

The proportional relief valve 203 is in the low gear position, and the hydraulic motor 109 is simultaneously set to the low displacement. When the hydraulic motor 109 is in low discharge capacity, the rotating speed of the motor can be greatly increased by hydraulic oil with the same flow, and the response capability of the winch is improved when the high-speed cable winding and unwinding is realized. Meanwhile, after the proportional overflow valve 203 is in a low gear, the lifting force of the mooring rope becomes low, only is 1/5-1/8 normal, and the mooring rope can be tightened but the submersible cannot be lifted away from the water surface. When the submersible descends, the tension of the cable is increased, the hydraulic motor 109 stops cable winding and reversely rotates to passively release the cable under the action of external load tension, the pressure in the second pipeline exceeds the gear setting of the proportional overflow valve 203, and oil brought by the reverse rotation of the hydraulic motor 109 overflows through the proportional overflow valve 203, so that the tension is kept stable during cable releasing of the cable.

When deploying the manned submersible 107, the proportional relief valve 203 is kept at the high-range pressure, and the hydraulic motor 109 is simultaneously set to the high displacement, so that the cable is slowly lowered.

The technical scheme of this application has been explained in detail in combination with the drawing above, and this application provides a promote winch that is used for emergent recovery operation of manned submersible ware, and this promotes winch includes promotion winch subassembly, speed reducer, hydraulic motor, hydraulic control system, and speed reducer and the hydraulic motor setting that link to each other in proper order are at the both ends that promote winch subassembly, and it includes to promote winch subassembly: a drum, a pulley and a thin-walled bearing; the winding drum is provided with an annular boss, a first bearing cover plate is arranged on the left side of the annular boss, at least three blind holes are arranged above the first bearing cover plate at equal intervals, and the first bearing cover plate is used for limiting the thin-wall bearing; the thin-wall bearings are arranged in parallel, the bearing inner rings of the thin-wall bearings are arranged above the annular bosses, the bearing outer rings of the thin-wall bearings are arranged below the pulleys, and the thin-wall bearings are used for supporting the pulleys; the left side of pulley is equidistant to be provided with three at least screw thread slot holes, installs in the screw thread slot hole and tightly decides the swivel bolt, tightly decides in the blind hole that the other end of swivel bolt inserted first bearing cover plate, tightly decides behind the swivel bolt back-spin blind hole, and the pulley can be under the effect of external force, rotatory on the reel. Through the technical scheme in this application, the integrated used pulley that sets up emergent recovery on the reel of current lifting winch improves the emergent security and the efficiency of retrieving of submersible.

In the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The shapes of various elements in the drawings are schematic and do not exclude certain differences from their true shapes, and the drawings are merely intended to illustrate the principles of the present application and are not intended to limit the present application.

The units in the device can be merged, divided and deleted according to actual requirements.

Although the present application has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and not restrictive of the application of the present application. The scope of the present application is defined by the appended claims and may include various modifications, adaptations, and equivalents of the invention without departing from the scope and spirit of the application.

Claims (7)

1. The utility model provides a promote winch that is used for emergent recovery operation of manned submersible, its characterized in that, this promote winch include promote winch subassembly, speed reducer, hydraulic motor, hydraulic control system, consecutive the speed reducer with hydraulic motor sets up promote winch subassembly's both ends, it includes to promote winch subassembly: the device comprises a winding drum, pulleys, a thin-wall bearing, a first bearing cover plate and a second bearing cover plate;

an annular boss is arranged on the winding drum;

a plurality of the thin-walled bearings are arranged in parallel, the thin-walled bearings being used to support the pulley, wherein,

the bearing inner ring of the thin-wall bearing is positioned by adopting a unilateral shoulder, the bearing inner ring of the thin-wall bearing is arranged above the annular boss on the winding drum and is fixed by utilizing circumferentially distributed screws, and the first bearing cover plate is fixed on the left side of the annular boss, so that the first bearing cover plate is tightly attached to the left side of the thin-wall bearing and is used for carrying out first limit on the thin-wall bearing, wherein three blind holes are formed in the outer side of the first bearing cover plate at equal intervals along the circumference;

the bearing outer ring of the thin-wall bearing is positioned in a unilateral shaft shoulder mode, the bearing outer ring of the thin-wall bearing is arranged below the pulley, the second bearing cover plate is fixed on the right side of the pulley by utilizing circumferentially distributed screws, and the second bearing cover plate is used for carrying out second limiting on the thin-wall bearing;

at least three thread long holes are arranged on the left side of the pulley at equal intervals, a fastening screw pin is arranged in each thread long hole, the other end of each fastening screw pin is inserted into the blind hole of the first bearing cover plate, after the fastening screw pins are screwed out of the blind holes, the pulley can rotate on the winding drum under the action of external force,

one end of the fastening screw pin is a threaded head, the other end of the fastening screw pin is a cylindrical head, and the middle of the fastening screw pin is machined in four aspects.

2. The hoisting winch for manned submersible emergency recovery operations of claim 1 wherein the pulley left side top end is circumferentially provided with a gear groove, the hoisting winch assembly further comprising: a speed measuring sensor;

the speed measuring sensor is arranged on the left side above the pulley, the sensing area of the speed measuring sensor is right opposite to the gear groove, the speed measuring sensor is used for counting the number of the gear grooves passing through the sensing area in a preset time period so as to calculate the rotating speed of the pulley,

wherein, the surface of the gear groove is filled with epoxy resin.

3. The hoisting winch for manned submersible emergency recovery operations according to claim 1, wherein the hoisting winch comprises two sets of said hydraulic control systems symmetrically disposed on either side of said hydraulic motor connected to a first line and a second line of said hydraulic control systems, said hydraulic control systems comprising two sets of symmetrically disposed emergency operation valve sets, said emergency operation valve sets comprising: four longitudinal stop valves and one transverse stop valve;

the transverse stop valve is connected between the first pipeline and the second pipeline in parallel;

the four longitudinal stop valves are connected in series in pairs and then are respectively connected in series in the first pipeline and the second pipeline,

a first emergency pipeline is connected between two longitudinal stop valves which are connected in series with the first pipeline in the two groups of emergency operation valve banks,

and a second emergency pipeline is connected between two longitudinal stop valves which are connected in series with the second pipeline in the two groups of emergency operation valve groups.

4. The lift winch for manned submersible emergency recovery operations of claim 3, wherein the hydraulic control system further comprises: a winch control valve bank and an energy accumulator valve bank;

the winch control valve group comprises an electromagnetic valve, a balance valve and a proportional overflow valve,

the output end of the electromagnetic valve is respectively connected with the first pipeline and the second pipeline, the input end of the electromagnetic valve is respectively connected with the pressure oil pipeline and the oil return pipeline, the electromagnetic valve is used for adjusting the conduction state between the input end and the output end,

the balance valve is connected in series with the second pipeline, a pilot control valve of the balance valve is connected to the first pipeline, the balance valve is used for forming controlled flow resistance in the second pipeline to balance load weight when the lifting winch assembly is in a cable releasing working condition,

the proportional overflow valve is connected between the first pipeline and the second pipeline in parallel and is used for adjusting the overflow pressure value between the second pipeline and the hydraulic motor so as to limit the highest pressure of the hydraulic motor,

the winch control valve group is used for controlling the direction and the flow of the hydraulic oil flowing into the hydraulic motor;

the accumulator valve group is used for supplementing oil to the first pipeline and the second pipeline.

5. The hoisting winch for manned submersible emergency recovery operations of claim 4, wherein the system further comprises: a normally closed spring brake, a throttle valve and a shuttle valve;

the normally closed spring brake is connected between the speed reducer and the hydraulic motor in series, and the control end of the normally closed spring brake is connected to the output end of the shuttle valve through the throttle valve;

the shuttle valve is connected in parallel between the first and second lines.

6. The hoist winch for manned submersible emergency recovery operations of claim 5, wherein when the system is in a submarine recovery mode and cable tension is determined to be greater,

the proportional overflow valve is configured to be in a first gear, so that hydraulic oil flowing into the hydraulic motor through the second pipeline overflows from an overflow port of the proportional overflow valve according to a preset flow rate, wherein the preset flow rate is determined by a pressure range corresponding to the first gear and cable tension.

7. A lifting winch for manned submersible emergency recovery operations according to any one of claims 4 to 6, wherein the accumulator valve block comprises: the system comprises a pressure reducing valve, a sequence valve and two accumulators which are arranged in parallel;

one end of the pressure reducing valve is connected to an oil supplementing pipeline of the system, the other end of the pressure reducing valve is connected to an oil inlet end of the sequence valve, and the sequence valve is used for supplementing oil to the energy accumulator in an under-pressure state;

the oil outlet end of the sequence valve is connected with the energy accumulator which is arranged in parallel, and the energy accumulator is connected with one end of the hydraulic motor after being sequentially connected with the check valve and the stop valve in series.

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