CN206668636U - A kind of positive displacement heave compensation hydraulic system and heave compensation Lift-on/Lift-off System - Google Patents
A kind of positive displacement heave compensation hydraulic system and heave compensation Lift-on/Lift-off System Download PDFInfo
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- CN206668636U CN206668636U CN201720172241.3U CN201720172241U CN206668636U CN 206668636 U CN206668636 U CN 206668636U CN 201720172241 U CN201720172241 U CN 201720172241U CN 206668636 U CN206668636 U CN 206668636U
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Abstract
It the utility model is related to a kind of positive displacement heave compensation hydraulic system, including hydraulic cylinder, fuel tank, proportioning pump and motor, hydraulic cylinder is the internal double-acting type hydraulic cylinder for being provided with single-piston, including mutually isolated rod chamber and rodless cavity, the pressure port of rod chamber and rodless cavity is connected to proportioning pump by the first oil circuit and the second oil circuit respectively, and it is connected to fuel tank via proportioning pump, proportioning pump is driven by motor and run, wherein, proportioning pump can be one or more groups of, every group of proportioning pump respectively includes first proportioning pump and second proportioning pump, the first proportioning pump and the second proportioning pump are respectively equipped with first oil circuit and the second oil circuit.The utility model further relates to a kind of heave compensation Lift-on/Lift-off System of the application hydraulic system.The utility model can take into account large-tonnage and efficient requirement, and passing ratio pump is connected with fuel tank respectively for rod chamber and rodless cavity, suction is oily between fuel tank and hydraulic cylinder respectively for proportioning pump, extra slippage pump need not be increased and carry out repairing, the quantity of control element can be reduced, and improves the system effectiveness and control system flexibility of heave compensation.
Description
Technical field
Compensation of undulation Hydraulic Field is the utility model is related to, especially a kind of positive displacement heave compensation hydraulic system and application
The heave compensation Lift-on/Lift-off System of the hydraulic system.
Background technology
Heave compensation is one kind of compensation of undulation, refers to carry out vertical because shifting causes working equipment to produce fluctuation
Compensation correction on direction.It is mainly used in seaborne supply, marine drilling, has cable seafloor robot installation exercise, deep-sea detecting
Etc..Due to the influence of the heave of waves, crane load produces relative motion with wave, therefore load goods and materials may touch
Hit or increase operation on the sea difficulty, so as to be impacted to the security of operation on the sea.
Current compensation of undulation has Active Compensation form, passive compensating form or main half Active Compensation shape being passively combined
Formula, compensation power set can be used as using hydraulic system, the passive generally use accumulator that compensates is used as hydraulic system
Power supply, such as Application No. CN201320599459.3 Chinese patent document disclose a kind of ocean loop wheel machine wave
Compensation device, including the hydraulic cylinder installed in arm head, pulley is installed in the piston rod end of hydraulic cylinder, in hoister winch
Steel wire rope be connected by pulley with lifting object；The pressure port of hydraulic cylinder connects with accumulator, accumulator while and magnetic valve
A, magnetic valve B connections, magnetic valve A connect with gas cylinder, and magnetic valve B connects with low pressure gas cylinder, magnetic valve A, magnetic valve B it is dynamic
Work is controlled by control system.The device of the present invention has the function of passive compensation of undulation and identical tension compensation concurrently, reduces wave and causes
Influence of the heave movement to loop wheel machine and lifting object, the security of increase ocean loop wheel machine lifting.
Active heave compensation hydraulic system includes valve control cylinder mode formula compensation system and secondary motor control compensation system.
Wherein, valve control cylinder mode formula compensation system is the flexible of passing ratio valve control hydraulic cylinder, so as to realize the heave compensation of wave；
Secondary motor control compensation system is to be controlled by the rotating speed of secondary motor with corner, realizes the heave compensation of wave.
Application No. CN200910227899.8 Chinese patent document discloses a kind of for active heave compensation
The fluid power system of heavy-duty machine, it is used for the lifting oil circuit that hangs of weight and for wave by fuel tank, respectively including hydraulic motor
The compensation oil circuit composition of compensation；Hydraulic motor in lifting oil circuit and compensation oil circuit drives the strand of crane by decelerator jointly
Car rotates.It compensates oil circuit by the second oil absorption filter including being sequentially connected, the second hydraulic pump, the second check valve, second high
Filter, magnetic valve, electrohydraulic servo valve, the second oil-feed balanced valve, the second hydraulic pump, the second fuel-displaced balanced valve composition are pressed through, the
The exit of two check valves is connected to the second overflow valve, second pressure relay, accumulator and second pressure gauge, and pressure is mended
Repay that device is used in parallel with electrohydraulic servo valve, braking member of the electromagnetic brake of second pressure Control second as winch.
The invention system has following features：First, hanging for weight is not interfere with each other with compensation of undulation, can in the case of no wave
Loop is compensated to close, now whole system function is identical with common crane, and in the case where wave is larger, opening compensates back
Road, the lifting for having compensation of undulation can be carried out.Second, compensation of undulation precision is high.Third, system flexibility is adjustable.Fourth, system is safe
Reliably, two oil circuits use the combination of Bidirectional balanced valve, prevent weight coaster.As can be seen here, valve control cylinder mode formula compensation system
The feature of system is in response to that fast, tonnage is big, and hydraulic cylinder is realized yet with the throttling control of valve control cylinder mode formula system adoption rate valve
Stretching speed, position control, the pressure drop of its restriction all produces heats and fluid is heated up, the efficiency one of valve control system
As be not higher than 30%, its shortcoming is that system effectiveness is low.
Such as Application No. CN201320599459.3 Chinese patent document discloses a kind of secondary motor control ripple again
Unrestrained compensation system, there is compensation response height, energy consumption is small, workable, and compensation precision is high, the big spy of the high adjustable extent of stability
Point, be adapted to a variety of tonnages and under different sea situations operation crane wave compensation system.Its technical scheme is：Using secondary horse
Up to being controlled, rotating compensation is carried out by swinging secondary motor pivot angle, increases response speed, secondary motor angular speed passes
The closed loop that the angular displacement of sensor output and the actual wave displacement of servo-cylinder displacement sensor feedback are formed carries out closed loop
Control compensation, improves compensation precision.The accumulator of secondary motor servoBcylinder control unit come ensure control stability, braking
Unit increases security of system using double solenoid directional control valves, and the secondary main hydraulic fluid port of motor is ensureing to pacify using two-way plug-in valve to control
Reduce crushing while complete, storage pressure is adjusted by inflated with nitrogen control unit to adapt to a variety of sea situation operations.The utility model
Secondary motor control wave compensation system be characterized in system effectiveness height, it is simple in construction, but winch diameter will very when tonnage is big
Greatly.
It follows that the technology of valve control cylinder mode formula compensation system and secondary motor control compensation system is more ripe, but point
Other Shortcomings, can not take into account large-tonnage and high efficiency, and whole synthesis performance needs further optimization and upgrading.
In addition, it can also use closed model pump control hydraulic cylinder type compensation system, the hydraulic pressure of closed model pump control hydraulic cylinder type compensation system
The oil inlet and outlet of pump is connected to the rod chamber and rodless cavity of hydraulic cylinder, is realized by the rotating speed or discharge capacity that change enclosed pump
The control of hydraulic cylinder, but because two cavity areas of most of hydraulic cylinder are different, therefore extra slippage pump is also needed to, when rod chamber enters
When oil and rodless cavity are fuel-displaced, system needs to flow back to fuel tank due to more excess oil caused by difference in areas.When rod chamber is fuel-displaced and rodless cavity
During oil-feed, system makes rodless cavity fuel feeding deficiency due to difference in areas, it is necessary to slippage pump repairing.
Therefore, how to design it is a kind of take into account large-tonnage, high efficiency and reduce control element quantity compensation of undulation hydraulic pressure drive
Dynamic system just turns into one of this area urgent problem to be solved.
Utility model content
In order to solve the above problems, the purpose of this utility model is to provide a kind of positive displacement heave compensation hydraulic system,
Including hydraulic cylinder, fuel tank, proportioning pump and motor, hydraulic cylinder is the internal double-acting type hydraulic cylinder for being provided with single-piston, including interior
Portion is provided with the rod chamber of piston rod and the rodless cavity of internal piston-rodless, and rod chamber and rodless cavity are mutually isolated by piston, and
The pressure port of rod chamber and rodless cavity is connected to proportioning pump by the first oil circuit and the second oil circuit respectively, and connects via proportioning pump
Fuel tank is connected to, proportioning pump is driven by motor and run.
Further, proportioning pump can be one or more groups of, and every group of proportioning pump respectively includes first proportioning pump and one the
Two proportioning pumps, the first proportioning pump and the second proportioning pump are respectively arranged on the first oil circuit and the second oil circuit, every group of proportioning pump respectively by
The driving operation of one motor.
Preferably, on the first oil circuit and/or the second oil circuit between the first proportioning pump and/or the second proportioning pump and hydraulic cylinder
Provided with topping up switch valve.
Further, rodless cavity includes mutually isolated the second rodless cavity and the first rodless cavity, and the first rodless cavity passes through
Two oil circuits are connected to the second proportioning pump, and the second rodless cavity is connected to the first proportioning pump or the second proportioning pump by the 3rd oil circuit,
And it is connected to fuel tank via the first proportioning pump or the second proportioning pump.
Preferably, the 3rd oil circuit is provided with accumulator, and accumulator is connected to the second of hydraulic cylinder without bar by the 3rd oil circuit
The pressure port of chamber.
Further, the 3rd oil circuit between the first proportioning pump or the second proportioning pump and accumulator is provided with passive compensation
Switch valve.
Preferably, in addition to by the first oil circuit and the second oil circuit the 4th oil circuit being connected, and the 4th oil circuit is provided with and connected
Logical switch valve.
Further, the front end of the piston rod of hydraulic cylinder is provided with displacement transducer.
The utility model also provides a kind of heave compensation Lift-on/Lift-off System, including ship, the compensation of undulation that is arranged on ship
Hoister system, the steel wire rope around compensation of undulation hoister system, the load for being lifted on steel cord ends and load-bearing wires rope rise
Heavy-duty machine assembly pulley, steel wire rope are stretched and turned to along assembly pulley, in addition to positive displacement heave compensation hydraulic pressure as described above
System, a pulley in assembly pulley are connected to the front end of piston rod so that a pulley can be with the reciprocal fortune of piston rod
Move and move.
Preferably, the junction of piston rod and said one pulley is provided with displacement transducer.
As above, positive displacement heave compensation hydraulic system provided by the utility model and heave compensation Lift-on/Lift-off System, can
Large-tonnage and efficient requirement are taken into account, and passing ratio pump is connected with fuel tank respectively for the rod chamber of hydraulic cylinder and rodless cavity,
Two proportioning pumps suction oil between fuel tank and hydraulic cylinder, therefore need not increase extra slippage pump and carry out repairing respectively, can
The quantity of control element is reduced, and further improves the system effectiveness and control system flexibility of heave compensation.
For the above of the present utility model can be become apparent, preferred embodiment cited below particularly, and with reference to accompanying drawing, make
Describe in detail as follows.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the positive displacement active compensation hydraulic system provided in the utility model first embodiment
Figure；
Fig. 2 is that the structure of the passive heave compensation hydraulic system of positive displacement master provided in the utility model second embodiment is shown
It is intended to；
Fig. 3 is the overall structure diagram of the heave compensation Lift-on/Lift-off System provided in the utility model 3rd embodiment.
Component label instructions
1 hydraulic cylinder
11 rod chambers
12 rodless cavities
The rodless cavities of 12a first
The rodless cavities of 12b second
13 pistons
14 piston rods
2 fuel tanks
3 proportioning pumps
31 first proportioning pumps
32 second proportioning pumps
4 motor
51 first oil circuits
52 second oil circuits
53 the 3rd oil circuits
54 the 4th oil circuits
61 topping up switch valves
62 passive compensating switch valves
63 coupling cock valves
7 displacement transducers
8 pulleys
9 accumulators
10 loads
010 ship deck/cabin
011 compensation of undulation hoister system
012 steel wire rope
013 positive displacement heave compensation hydraulic system
014 whip-gin group
015 ship motion sensor
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this theory
Content disclosed in bright book understands other advantages and effect of the present utility model easily.Although description of the present utility model will tie
Close preferred embodiment to introduce together, but this feature for not representing this utility model is only limitted to the embodiment.On the contrary, knot
It is to be possible to extend based on claim of the present utility model to cover to close the purpose that embodiment makees utility model introduction
The other selections or transformation gone out.Depth of the present utility model is understood in order to provide, will be included in describing below many specific
Details.The utility model can also be implemented without using these details.In addition, in order to avoid chaotic or fuzzy of the present utility model heavy
Point, some details will be omitted in the de-scription.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
" on ", " under ", "left", "right", " top ", " bottom " in addition, used in the following description, should not be construed as pair
Limitation of the present utility model.
【First embodiment】
As shown in fig. 1, the utility model first embodiment provides a kind of positive displacement active compensation hydraulic system,
Including hydraulic cylinder 1,2, two groups of proportioning pumps 3 of fuel tank and motor 4, hydraulic cylinder 1 is the internal double-acting type hydraulic pressure for being provided with single-piston
Cylinder, including it is internally provided with the rod chamber 11 of piston rod 14 and the rodless cavity 12 of internal piston-rodless, rod chamber 11 and rodless cavity
12 is mutually isolated by piston 13, and pressure port A, B of rod chamber 11 and rodless cavity 12 passes through the first oil circuit 51 and second respectively
Oil circuit 52 is connected to proportioning pump 3, and is connected to fuel tank 2 via proportioning pump 3, wherein, every group of proportioning pump 3 respectively includes one first ratio
Example pump 31 and second proportioning pump 32, the first proportioning pump 31 and the second proportioning pump 32 are respectively arranged on the first oil circuit 51 and the second oil
On road 52, every group of proportioning pump 3 respectively drives operation by a motor 4.
Specifically, hydraulic cylinder 1 is double-acting single-piston hydraulic cylinder.Typically, hydraulic cylinder can be divided into piston hydraulic
Cylinder and plunger-type cylinder, wherein, piston-type hydraulic cylinder has single-acting formula and double-acting type by the operative condition division of hydraulic coupling.
In single-acting formula hydraulic cylinder, hydraulic oil makes hydraulic cylinder realize unidirectional motion, instead only for a chamber of hydraulic cylinder by hydraulic coupling
Then outer power (such as spring force, deadweight or external load) is realized for direction motion；And two sides of double-acting type hydraulic cylinder piston
To motion then by two chambers replace oil-feed, completed by the effect of hydraulic coupling.In the utility model first embodiment, hydraulic cylinder
1 inside sets a single piston 13, and the motion of the both direction of piston 13 passes through 12 liang of rod chamber 11 and rodless cavity respectively
The action of hydraulic force of individual cavity is completed.
Further, topping up switch valve 61, the topping up switch valve 61 are provided with the first oil circuit 51 and/or the second oil circuit 52
It is arranged between the first proportioning pump 31 and/or the second proportioning pump 32 and the pressure port A and/or B of hydraulic cylinder 1.Opened by topping up
Valve 61 is closed the first oil circuit 51 and/or the second oil circuit 52 are opened and closed, so as to control the hydraulic oil in fuel tank 2 each
Enter in the presence of individual proportioning pump 3 via the first oil circuit 51 and/or the second oil circuit 52 in rod chamber 11 and/or rodless cavity 12.
It is further preferable that the positive displacement active compensation hydraulic system of this implementation can include one group or multigroup ratio
Pump 3, wherein, any group of proportioning pump 3 includes at least one first proportioning pump 31 and at least one second proportioning pump 32, and often
One group of proportioning pump 3 is respectively configured a motor 4 and is used as dynamical element, to drive the first proportioning pump 31 in this group of proportioning pump 3
Run with the second proportioning pump 32.In the utility model first embodiment, the rod chamber 11 and rodless cavity 12 of hydraulic cylinder 1 are respectively configured
One volume control element (volume control element of the present embodiment is proportioning pump 3) is individually controlled, i.e. referred to as load chamber
Independent control mode, it is the advantages of this control mode：When hydraulic cylinder 1 is to both direction stretching motion, its load characteristic
It is different, and the rotating speed or discharge capacity of the flow of each cavity suction oil and proportioning pump 3 are in the relation of substantially linear；If only adopt
The pressure port of two cavitys is controlled with a volume control element, then the characteristic of two pressure ports just has mutually
Mutually influence.
Further, the front end of the piston rod 14 of the hydraulic cylinder 1 in the present embodiment is provided with displacement transducer 7.The displacement
Sensor 7 is used for the displacement for measuring piston rod 14, and the displacement measured is fed back into control system, so as to be according to control
The signal control piston rod 14 of system moves back and forth.
Below to enter applied to compensation of undulation operation to the positive displacement active compensation hydraulic system in the present embodiment
Row describes in detail.
Preparation operating mode：When in applied to heave compensation crane system, as shown in fig. 1, by piston rod 14
Front end is connected to pulley 8, and the pulley 8 passes through around steel wire rope carry load 10 thereon.Start motor 4, be connected to pressure
Port A and/or pressure port B topping up switch valve 61 must be electric, and the controller of crane system gives the first proportioning pump 31 respectively
With the signal of the second proportioning pump 32, in the presence of the first proportioning pump 31 and the second proportioning pump 32, hydraulic oil is respectively from the first oil circuit
51 and second oil circuit 52 enter hydraulic cylinder 1 rod chamber 11 and rodless cavity 12 in, the numerical value of monitoring control devices displacement transducer 7,
Until piston rod 14 is moved to predetermined position, the system preparation stage completes.
Active Compensation operating mode：When loading 10 with wave heave movement, continue to start motor 4, be connected to pressure end
Mouth A and/or pressure port B topping up switch valve 61 must be electric, and controller is given according to the compensation of undulation of ship motion sensor 015
The numerical computations for determining signal and displacement transducer 7 go out and are sent to the first proportioning pump 31 and the control signal of the second proportioning pump 32,
In the presence of first proportioning pump 31 and the second proportioning pump 32, hydraulic oil enters hydraulic pressure from the first oil circuit 51 and the second oil circuit 52 respectively
The rod chamber 11 and rodless cavity 12 of cylinder 1, control piston rod 14 move back and forth, so as to offset due to wave make it is attached caused by load 10
Add motion.
In above-mentioned active heave compensation operation process, the rod chamber 11 and rodless cavity 12 of hydraulic cylinder 1 pass through first respectively
The proportioning pump 32 of proportioning pump 31 and second is connected with fuel tank 2, the suction between fuel tank 2 and hydraulic cylinder 1 respectively of two proportioning pumps 3
Oil, the control to piston rod 14 is realized by the rotating speed or discharge capacity that change proportioning pump 3, carried out without increasing extra slippage pump
Repairing, so as to reduce the quantity of control element, further reduce cost.
【Second embodiment】
As shown in Figure 2, the utility model second embodiment provides a kind of passive heave compensation hydraulic pressure system of positive displacement master
System, including hydraulic cylinder 1,2, two groups of proportioning pumps 3 of fuel tank and motor 4, hydraulic cylinder 1 are the internal double-acting type liquid for being provided with single-piston
Cylinder pressure, including be internally provided with the rod chamber 11 of piston rod 14 and the rodless cavity 12 of internal piston-rodless, rod chamber 11 and without bar
Chamber 12 is mutually isolated by piston 13, and pressure port A, B of rod chamber 11 and rodless cavity 12 passes through the first oil circuit 51 and respectively
Two oil circuits 52 are connected to proportioning pump 3, and are connected to fuel tank 2 via proportioning pump 3, wherein, every group of proportioning pump 3 respectively includes one first
Proportioning pump 31 and second proportioning pump 32, the first proportioning pump 31 and the second proportioning pump 32 are respectively arranged on the first oil circuit 51 and second
On oil circuit 52, every group of proportioning pump 3 respectively drives operation by a motor 4.Wherein, rodless cavity 12 includes mutually isolated first without bar
Chamber 12a and the second rodless cavity 12b, the first rodless cavity 12a are connected to the second proportioning pump 32, the second rodless cavity by the second oil circuit 52
12b is connected to the second proportioning pump 32 by the 3rd oil circuit 53, and is connected to fuel tank 2 via the second proportioning pump 32.
In the passive heave compensation hydraulic system of above-mentioned positive displacement master of the present embodiment, the second rodless cavity 12b can also pass through
3rd oil circuit 53 is connected to the first proportioning pump 31, and is connected to fuel tank 2 via the first proportioning pump 31, i.e. the 3rd oil circuit 53 can be
Controlled in the presence of any proportion pump, and be not limited to the second proportioning pump 32 shown in Fig. 2.
Wherein, the 3rd oil circuit 53 is provided with accumulator 9, and accumulator 9 is connected to the second of hydraulic cylinder 1 by the 3rd oil circuit 53
Rodless cavity 12b pressure port C.In the present embodiment, accumulator is a kind of energy savings device in hydropneumatic system, it
Appropriate opportunity stores the energy conversion in system for pressure energy, is liquid when system needs, and by pressure energy
Pressure or the energy such as air pressure and discharge, mend feed system again.When system instantaneous pressure increases, it can absorb this part
Energy, to ensure that whole system pressure is normal.
Preferably, topping up switch valve 61 is provided with the first oil circuit 51 and/or the second oil circuit 52, the topping up switch valve 61 is set
It is placed between the first proportioning pump 31 and/or the second proportioning pump 32 and the pressure port A and/or B of hydraulic cylinder 1.Switched by topping up
Valve 61 is opened and closed to the first oil circuit 51 and/or the second oil circuit 52, so as to controlling the hydraulic oil in fuel tank 2 each
Enter in the presence of proportioning pump 3 via the first oil circuit 51 and/or the second oil circuit 52 in rod chamber 11 and/or rodless cavity 12.
Further, in the utility model second embodiment, the rodless cavity 12a of rod chamber 11 and first is as actively benefit
The active chamber used during repaying, the second rodless cavity 12b is as the passive chamber used in passive compensation process.As shown in Fig. 2 the
One rodless cavity 12a can be to be arranged at the hollow cavity inside piston rod 14, and respectively with the rodless cavity of rod chamber 11 and second
12b is isolated, and is fixed on cylinder barrel on the left of the first rodless cavity 12a, when piston rod 14 moves, the first rodless cavity 12a volume
Change therewith, whole first rodless cavity 12a outer walls and the inner hole of piston rod 14 simultaneously seal.First rodless cavity 12a pressure end
Mouth B is connected to the second proportioning pump 32 by the second oil circuit 52, so as to be communicated in fuel tank 2, by the driving force of the second proportioning pump 32
Inspiration and exclusion hydraulic oil from fuel tank 2.Second rodless cavity 12b occupies the remaining cavity space in rodless cavity 12, its pressure end
It (is to be connected in the present embodiment that mouth C is connected to the first proportioning pump 31 or is connected to the second proportioning pump 32 by the 3rd oil circuit 53
Second proportioning pump 32), so as to be communicated in fuel tank 2, similarly by the driving force of the first proportioning pump 31 or the second proportioning pump 32
Inspiration and discharge hydraulic oil from fuel tank 2.
Further, it is provided between the first proportioning pump 31 or the second proportioning pump 32 and accumulator 9 on the 3rd oil circuit 53
Passive compensating switch valve 62.The passive compensating switch valve 62 is arranged at the first proportioning pump 31 or the second proportioning pump 32 and hydraulic cylinder 2
Between.The 3rd oil circuit 53 is opened and closed by passive compensating switch valve 62, so as to control the hydraulic oil in fuel tank 2
Enter in the presence of each proportioning pump 3 via the 3rd oil circuit 53 in the second rodless cavity 12b.
Preferably, as shown in Fig. 2 the passive heave compensation hydraulic system of the positive displacement master of the present embodiment is also included the first oil
The 4th oil circuit 54 that road 51 is connected with the second oil circuit 52, and it is communicated with switch valve 63 on the 4th oil circuit 54.Coupling cock valve
63 act as：In passive compensation, it is only necessary to which accumulator 9 acts on hydraulic cylinder 1, and realizes dynamic balance with outer load, now
In the case of the rodless cavity 12a area equations of rod chamber 11 and first, the connected defaecation of two cavitys will not break dynamic balance again.This implementation
In the passive positive displacement heave compensation hydraulic system of master of example, topping up switch valve 61 can be only arranged on the second oil circuit 52, work as connection
When switch valve 63 is opened, topping up switch valve 61 can be that the first oil circuit 51 and the second oil circuit 52 share.
As shown in Fig. 2 the positive displacement heave compensation hydraulic system of this implementation can include one group or multigroup proportioning pump 3,
Wherein, any group of proportioning pump 3 includes at least one first proportioning pump 31 and at least one second proportioning pump 32, and each group
Proportioning pump 3 is respectively configured a motor 4 and is used as dynamical element, to drive the first proportioning pump 31 and in this group of proportioning pump 3
Two proportioning pumps 32 are run.In the utility model second embodiment, the rod chamber 11 and rodless cavity 12 of hydraulic cylinder 1 are respectively configured one
Volume control element (volume control element of the present embodiment is proportioning pump 3) is individually controlled, i.e., referred to as load chamber is independent
Control, it is the advantages of this control mode：When hydraulic cylinder 1 is to both direction stretching motion, its load characteristic be it is different,
And the flow of each cavity suction oil and the rotating speed or discharge capacity of proportioning pump 3 are in the relation of substantially linear；If only with an appearance
Product control element is controlled to the pressure port of two cavitys, then the characteristic of two pressure ports, which just has, to interact.
Further, the front end of the piston rod 14 of the hydraulic cylinder 1 in the present embodiment is provided with displacement transducer 7.The displacement
Sensor 7 is used for the displacement for measuring piston rod 14, and the displacement measured is fed back into control system, so as to be according to control
The signal control piston rod 14 of system moves back and forth.
Below to come applied to compensation of undulation operation to the passive heave compensation hydraulic system of positive displacement master in the present embodiment
It is described in detail.
Preparation operating mode：As shown in Figure 2, the front end of piston rod 14 is connected to pulley 8, the pulley 8 by around
Steel wire rope carry load 10.Start motor 4, the first proportioning pump 31 and the unloaded rotation of the second proportioning pump 32, be connected to pressure end
Mouth A, B dead electricity of topping up switch valve 61, the dead electricity of coupling cock valve 63, passive compensating switch valve 62 obtain electric, controller given second
The signal of proportioning pump 32, hydraulic oil are filled with accumulator 9 and liquid from the high-pressure mouth of the second proportioning pump 32 by passive compensating switch valve 62
Second rodless cavity 12b of cylinder pressure, make the second rodless cavity 12b pressure and load balance of accumulator 9 and hydraulic cylinder, the second rodless cavity
12b filling process terminates；The passive dead electricity of compensating switch valve 62, the dead electricity of coupling cock valve 63, is connected to filling for the first rodless cavity 12a
Liquid switch valve 61 must be electric, and controller gives the first proportioning pump 31 and the signal of the second proportioning pump 32 respectively, and hydraulic oil is respectively from first
The high-pressure mouth of the proportioning pump 32 of proportioning pump 31 and second enters the rodless cavity 12a of rod chamber 11 and first of hydraulic cylinder 1, and monitoring displacement passes
The numerical value of sensor 7, the piston rod 14 of hydraulic cylinder 1 is set to be moved to predetermined position, then the completion of system preparation stage.
Passive compensation operating mode：The the first rodless cavity 12a dead electricity of topping up switch valve 61 is connected to, coupling cock valve 63 must be electric,
The signal of the passive dead electricity of compensating switch valve 62, the first proportioning pump 31 and the second proportioning pump 32 is 0, the position that load 10 heaves with wave
Move and passive control is realized by accumulator 9, it is compensated by the air cavity pressure of accumulator 9 and accumulation of energy caused by the interaction of oil pocket pressure
The charge and discharge liquid process of device 9.
Main passive compensation operating mode：Start motor 4, the dead electricity of coupling cock valve 63, the passive dead electricity of compensating switch valve 62, accumulation of energy
Device 9 is connected with the second rodless cavity 12b and balanced with load 10, while be connected to the first rodless cavity 12a topping up switch valve 61
Electricity, controller go out according to the Setting signal of the compensation of undulation of ship motion sensor 015 and the numerical computations of displacement transducer 7
The control signal of one proportioning pump 31 and the second proportioning pump 32, hydraulic oil is respectively from the first proportioning pump 31 and the height of the second proportioning pump 32
Mouth is pressed to enter the rodless cavity 12a of rod chamber 11 and first of hydraulic cylinder 1, control piston rod 14 moves back and forth in hydraulic cylinder 1, so as to
Offset because wave makes additional movement caused by load 10.
The above-mentioned main quilt carried out using the passive heave compensation hydraulic system of the positive displacement master of the utility model second embodiment
Dynamic formula compensation of undulation operation, large-tonnage and efficient requirement can be taken into account, and the rod chamber 11 of hydraulic cylinder 1 and rodless cavity 12 divide
Other passing ratio pump 3 is connected with fuel tank 2, two proportioning pumps 3 suction oil between fuel tank 2 and hydraulic cylinder 1, therefore need not respectively
Increase extra slippage pump process repairing, the quantity of control element can be reduced, and further improve active compensation is
Efficiency of uniting and control system are flexible.Also, the present embodiment load weight in main passive compensation is balanced by passive compensation, main
Dynamic compensation only needs to provide hydraulic cylinder 1 can be achieved in less power motion and heave compensation, relative to single active heave
Compensation system, it can more save power and further improve compensation efficiency.
【3rd embodiment】
As shown in figure 3, the utility model 3rd embodiment provides a kind of heave compensation Lift-on/Lift-off System, including ship first
Plate/cabin 010, the compensation of undulation hoister system 011 being arranged on ship deck/cabin 010, around compensation of undulation hoister system
The whip-gin group 014 of 011 steel wire rope 012, the load 10 for being lifted on the end of steel wire rope 012 and load-bearing wires rope 012, steel
Cord 012 is stretched and turned to along whip-gin group 014, and the heave compensation Lift-on/Lift-off System of the present embodiment also includes volume
Formula heave compensation hydraulic system 013, a pulley 8 in whip-gin group 014 are connected to the front end of piston rod so that this one
Individual pulley 8 can move with the reciprocating motion of piston rod.
As shown in Figure 1 or 2, positive displacement heave compensation hydraulic system 013 includes hydraulic cylinder 1, fuel tank 2, proportioning pump 3 and electricity
Motivation 4, hydraulic cylinder 1 is provided with the double-acting type hydraulic cylinder of single-piston to be internal, including is internally provided with the rod chamber of piston rod 14
11 and the rodless cavity 12 of internal piston-rodless, rod chamber 11 and rodless cavity 12 are mutually isolated by piston 13, and rod chamber 11 and nothing
Pressure port A, B of rod cavity 12 is connected to proportioning pump 3 by the first oil circuit 51 and the second oil circuit 52 respectively, and via proportioning pump 3
Fuel tank 2 is connected to, wherein, proportioning pump 3 can be one or more groups of, and every group of proportioning pump 3 respectively includes first proportioning pump 31 and one
Individual second proportioning pump 32, the first proportioning pump 31 and the second proportioning pump 32 are respectively arranged on the first oil circuit 51 and the second oil circuit 52, often
Group proportioning pump 3 respectively drives operation by a motor 4.
Wherein, as shown in Fig. 2 rodless cavity 12 includes mutually isolated the first rodless cavity 12a and the second rodless cavity 12b, the
One rodless cavity 12a is connected to fuel tank 2 by the second oil circuit 52, and the second rodless cavity 12b is connected to the first ratio by the 3rd oil circuit 53
The proportioning pump 32 (the present embodiment is as shown in Figure 2 to be connected to the second proportioning pump 32) of example pump 31 or second, and via the first ratio
The proportioning pump 32 of pump 31 or second is connected to fuel tank 2.
3rd oil circuit 53 is provided with accumulator 9, and accumulator 9 is connected to the second of hydraulic cylinder 1 without bar by the 3rd oil circuit 53
Chamber 12b pressure port C.In the present embodiment, accumulator 9 is a kind of energy savings device in hydropneumatic system, and it is suitable
When opportunity the energy conversion in system is stored for pressure energy, be hydraulic pressure when system needs, and by pressure energy
Or air pressure etc. can and discharge, mend feed system again.When system instantaneous pressure increases, it can absorb the energy of this part
Amount, to ensure that whole system pressure is normal.
Preferably, topping up switch valve 61 is provided with the first oil circuit 51 and/or the second oil circuit 52, the topping up switch valve 61 is set
It is placed between the first proportioning pump 31 and/or the second proportioning pump 32 and the pressure port A and/or B of hydraulic cylinder 1.Switched by topping up
Valve 61 is opened and closed to the first oil circuit 51 and/or the second oil circuit 52, so as to controlling the hydraulic oil in fuel tank 2 each
Enter in the presence of proportioning pump 3 via the first oil circuit 51 and/or the second oil circuit 52 in rod chamber 11 and/or rodless cavity 12.
Further, in the utility model 3rd embodiment, the rodless cavity 12a of rod chamber 11 and first is as actively benefit
The active chamber used during repaying, the second rodless cavity 12b is as the passive chamber used in passive compensation process.As shown in Fig. 2 the
One rodless cavity 12a can be to be arranged at the hollow cavity inside piston rod 14, and respectively with the rodless cavity of rod chamber 11 and second
12b is isolated, and is fixed on cylinder barrel on the left of the first rodless cavity 12a, when piston rod 14 moves, the first rodless cavity 12a volume
Change therewith, whole first rodless cavity 12a outer walls and the inner hole of piston rod 14 simultaneously seal.First rodless cavity 12a pressure end
Mouth B is connected to the second proportioning pump 32 by the second oil circuit 52, so as to be communicated in fuel tank 2, by the driving force of the second proportioning pump 32
Inspiration and exclusion hydraulic oil from fuel tank 2.Second rodless cavity 12b occupies the remaining cavity space in rodless cavity 12, its pressure end
It (is to be connected in the present embodiment that mouth C is connected to the first proportioning pump 31 or is connected to the second proportioning pump 32 by the 3rd oil circuit 53
Second proportioning pump 32), so as to be communicated in fuel tank 2, similarly by the driving force of the first proportioning pump 31 or the second proportioning pump 32
Inspiration and discharge hydraulic oil from fuel tank 2.
Further, it is provided between the first proportioning pump 31 or the second proportioning pump 32 and accumulator 9 on the 3rd oil circuit 53
Passive compensating switch valve 62.The passive compensating switch valve 62 is arranged at the first proportioning pump 31 or the second proportioning pump 32 and hydraulic cylinder 1
Between.The 3rd oil circuit 53 is opened and closed by passive compensating switch valve 62, so as to control the hydraulic oil in fuel tank 2
Enter in the presence of each proportioning pump 3 via the 3rd oil circuit 53 in the second rodless cavity 12b.
Preferably, as shown in Fig. 2 the passive heave compensation hydraulic system of the positive displacement master of the present embodiment is also included the first oil
The 4th oil circuit 54 that road 51 is connected with the second oil circuit 52, and it is communicated with switch valve 63 on the 4th oil circuit 54.Coupling cock valve
63 act as：In passive compensation, it is only necessary to which accumulator 9 acts on hydraulic cylinder 1, and realizes dynamic balance with outer load, now
In the case of the rodless cavity 12a area equations of rod chamber 11 and first, the connected defaecation of two cavitys will not break dynamic balance again.This implementation
In the passive positive displacement heave compensation hydraulic system of master of example, topping up switch valve 61 can be only arranged on the second oil circuit 52, work as connection
When switch valve 63 is opened, topping up switch valve 61 can be that the first oil circuit 51 and the second oil circuit 52 share.
The positive displacement heave compensation hydraulic system of this implementation can include one group or multigroup proportioning pump 3, wherein, any group
Proportioning pump 3 includes at least one first proportioning pump 31 and at least one second proportioning pump 32, and each group of proportioning pump 3 is distinguished
One motor 4 of configuration is used as dynamical element, to drive the first proportioning pump 31 in this group of proportioning pump 3 and the second proportioning pump 32 to transport
OK.In the utility model 3rd embodiment, a volume control element is respectively configured in the rod chamber 11 and rodless cavity 12 of hydraulic cylinder 1
(volume control element of the present embodiment is proportioning pump 3) is individually controlled, i.e. referred to as load chamber independent control, this control
The advantages of mode, is：When hydraulic cylinder 1 is to both direction stretching motion, its load characteristic is different, and each cavity suction
The flow of oil and the relation that the rotating speed of proportioning pump 3 or discharge capacity are in substantially linear；If only with a volume control element pair
The pressure port of two cavitys is controlled, then the characteristic of two pressure ports, which just has, to interact.
Further, the front end of the piston rod 14 of the hydraulic cylinder 1 in the present embodiment is provided with displacement transducer 7.The displacement
Sensor 7 is used for the displacement for measuring piston rod 14, and the displacement measured is fed back into control system, so as to be according to control
The signal control hydraulic cylinder 1 of system moves back and forth.Displacement transducer 7 can be located at the junction of piston rod 14 and pulley 8.
In summary, positive displacement heave compensation hydraulic system disclosed in the utility model and heave compensation Lift-on/Lift-off System, energy
Large-tonnage and efficient requirement are enough taken into account, and the rod chamber of hydraulic cylinder and rodless cavity are distinguished passing ratio pump and be connected with fuel tank
Connect, two proportioning pumps suction oil between fuel tank and hydraulic cylinder, therefore extra slippage pump need not be increased and carry out repairing, energy respectively
The quantity of control element is enough reduced, and further improves the system effectiveness and control system flexibility of heave compensation.The utility model
Above-described embodiment of offer only illustrative principle of the present utility model and its effect, not for limitation the utility model.
Any person skilled in the art can be all modified above-described embodiment without prejudice under spirit and scope of the present utility model
Or change.Therefore, such as those of ordinary skill in the art without departing from disclosed in the utility model spirit with
All equivalent modifications completed under technological thought or change, it should be covered by claim of the present utility model.
Claims (10)
1. a kind of positive displacement heave compensation hydraulic system, it is characterised in that including hydraulic cylinder, fuel tank, proportioning pump and motor, institute
State hydraulic cylinder and be provided with the double-acting type hydraulic cylinder of single-piston to be internal, including be internally provided with the rod chamber of piston rod and internal nothing
The rodless cavity of piston rod, the rod chamber and the rodless cavity are mutually isolated by the piston, and the rod chamber and the nothing
The pressure port of rod cavity is connected to the proportioning pump by the first oil circuit and the second oil circuit respectively, and is connected via the proportioning pump
In the fuel tank, the proportioning pump is driven by the motor and run.
2. positive displacement heave compensation hydraulic system as claimed in claim 1, it is characterised in that the proportioning pump can be one group or
It is multigroup, and proportioning pump described in every group respectively includes first proportioning pump and second proportioning pump, first proportioning pump and institute
State the second proportioning pump to be respectively arranged on first oil circuit and second oil circuit, proportioning pump described in every group is respectively by an electricity
Motivation driving operation.
3. positive displacement heave compensation hydraulic system as claimed in claim 2, it is characterised in that first proportioning pump and/or
First oil circuit and/or second oil circuit between second proportioning pump and the hydraulic cylinder switch provided with topping up
Valve.
4. positive displacement heave compensation hydraulic system as claimed in claim 2, it is characterised in that the rodless cavity include mutually every
From the second rodless cavity and the first rodless cavity, first rodless cavity is connected to second ratio by second oil circuit
Pump, second rodless cavity are connected to first proportioning pump or second proportioning pump by the 3rd oil circuit, and via institute
State the first proportioning pump or second proportioning pump is connected to the fuel tank.
5. positive displacement heave compensation hydraulic system as claimed in claim 4, it is characterised in that the 3rd oil circuit, which is provided with, to be stored
Energy device, the accumulator are connected to the pressure port of second rodless cavity of the hydraulic cylinder by the 3rd oil circuit.
6. positive displacement heave compensation hydraulic system as claimed in claim 5, it is characterised in that first proportioning pump or institute
The 3rd oil circuit stated between the second proportioning pump and the accumulator is provided with passive compensating switch valve.
7. positive displacement heave compensation hydraulic system as claimed in claim 4, it is characterised in that also include first oil circuit
The 4th oil circuit being connected with second oil circuit, and it is communicated with switch valve on the 4th oil circuit.
8. the positive displacement heave compensation hydraulic system as described in any in claim 1-7, it is characterised in that the hydraulic cylinder
The end of the piston rod is provided with displacement transducer.
9. a kind of heave compensation Lift-on/Lift-off System, including ship, be arranged on the ship compensation of undulation hoister system, around institute
State the crane of the steel wire rope of compensation of undulation hoister system, the load for being lifted on the steel cord ends and the carrying steel wire rope
Assembly pulley, the steel wire rope are stretched and turned to along the assembly pulley, it is characterised in that also include such as claim 1-8
In any described positive displacement heave compensation hydraulic system, before a pulley in the assembly pulley is connected to the piston rod
End so that one pulley can move with the reciprocating motion of the piston rod.
10. heave compensation Lift-on/Lift-off System as claimed in claim 9, it is characterised in that the piston rod and one pulley
Junction be provided with displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720172241.3U CN206668636U (en) | 2017-02-24 | 2017-02-24 | A kind of positive displacement heave compensation hydraulic system and heave compensation Lift-on/Lift-off System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720172241.3U CN206668636U (en) | 2017-02-24 | 2017-02-24 | A kind of positive displacement heave compensation hydraulic system and heave compensation Lift-on/Lift-off System |
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| Publication Number | Publication Date |
|---|---|
| CN206668636U true CN206668636U (en) | 2017-11-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720172241.3U Withdrawn - After Issue CN206668636U (en) | 2017-02-24 | 2017-02-24 | A kind of positive displacement heave compensation hydraulic system and heave compensation Lift-on/Lift-off System |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640780A (en) * | 2017-02-24 | 2017-05-10 | 上海振华重工(集团)股份有限公司 | Positive displacement heave compensation hydraulic system and heavy compensation lifting system |
| CN108408611A (en) * | 2018-05-08 | 2018-08-17 | 山东大学 | A kind of movable type active compensation device and its working method |
| CN109987530A (en) * | 2019-04-01 | 2019-07-09 | 南通力威机械有限公司 | Compensation of undulation piston tensioner and its application method |
| WO2024026986A1 (en) * | 2022-08-03 | 2024-02-08 | 苏州海希夫智控科技有限公司 | Heave compensation device, system and method for mining dredger |
-
2017
- 2017-02-24 CN CN201720172241.3U patent/CN206668636U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640780A (en) * | 2017-02-24 | 2017-05-10 | 上海振华重工(集团)股份有限公司 | Positive displacement heave compensation hydraulic system and heavy compensation lifting system |
| CN108408611A (en) * | 2018-05-08 | 2018-08-17 | 山东大学 | A kind of movable type active compensation device and its working method |
| CN109987530A (en) * | 2019-04-01 | 2019-07-09 | 南通力威机械有限公司 | Compensation of undulation piston tensioner and its application method |
| CN109987530B (en) * | 2019-04-01 | 2024-05-17 | 南通力威机械有限公司 | Wave compensated piston tensioner and method of use |
| WO2024026986A1 (en) * | 2022-08-03 | 2024-02-08 | 苏州海希夫智控科技有限公司 | Heave compensation device, system and method for mining dredger |
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