CN105951703A - Hydraulic system for gear and rack type lifting mechanism - Google Patents
Hydraulic system for gear and rack type lifting mechanism Download PDFInfo
- Publication number
- CN105951703A CN105951703A CN201610286948.7A CN201610286948A CN105951703A CN 105951703 A CN105951703 A CN 105951703A CN 201610286948 A CN201610286948 A CN 201610286948A CN 105951703 A CN105951703 A CN 105951703A
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- oil
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0809—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering the equipment being hydraulically actuated
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic system for a gear and rack type lifting mechanism and belongs to the field of hydraulic systems. The hydraulic system comprises a first auxiliary pump, a second auxiliary pump, a first main pump, a second main pump, an electromagnetic reversing valve, a pressure switch and a plurality of load balancing hydraulic units. Each load balancing hydraulic unit comprises a three-position four-way reversing valve, a hydraulic lock, a first cartridge valve, a second cartridge valve, a pilot valve and a first pressure sensor. An oil outlet of the first auxiliary pump communicates with an oil outlet of the second auxiliary pump and then communicates with an opening P of each three-position four-way reversing valve. An opening T of each three-position four-way reversing valve communicates with an oil tank. An opening A of each three-position four-way reversing valve communicates with a first oil inlet of the corresponding hydraulic lock. An opening B of each three-position four-way reversing valve communicates with a second oil inlet of the corresponding hydraulic lock. According to the hydraulic system for the gear and rack type lifting mechanism, load balancing among a plurality of gear boxes in a lifting state and a locking state is achieved.
Description
Technical field
The present invention relates to hydraulic system field, particularly to the hydraulic system of a kind of rack-and-pinion elevating mechanism.
Background technology
The exploration and development of marine oil and gas is substantially with ocean platform as carrier, and wherein self-elevating ocean platform is normal
A kind, in the fields such as oil and gas development, offshore construction, wind-powered electricity generation installation, play very important work
With.The lifting structure of this self-elevating ocean platform includes gear-rack type lifter structure.
Gear-rack type lifter structure is exactly to arrange several tooth bars on every pile lower limb of ocean platform, tooth bar with
Gear is meshed, and gear is driven by power set, and power set impart power to gear, so that tooth
Wheel can be along gear rack elevating, and gear is fixed with ocean platform main body by structures such as frameworks, and then drives sea
Ocean main platform body realizes lifting.
During realizing the present invention, inventor finds that prior art at least there is problems in that
No matter traditional gear-rack type lifter structure is the load equalization in lifting process or when locking
Function is relatively difficult to, and the load equalization for gear-rack type lifter structure makes troubles.
Summary of the invention
In order to solve the problem that load equalization in prior art is difficult to, embodiments provide one
The hydraulic system of gear-rack type lifter structure.Described technical scheme is as follows:
Embodiments provide the hydraulic system of a kind of gear-rack type lifter structure, described hydraulic system
Including: the first auxiliary pump, the second auxiliary pump, the first main pump, the second main pump, solenoid directional control valve, pressure switch and
Multiple load equalization hydraulic pressure units, each described load equalization hydraulic pressure unit all includes: three position four-way directional control valve,
Hydraulic lock, the first inserted valve, the second inserted valve, pilot valve and the first pressure transducer, described first auxiliary pump
Oil-out connect with the P mouth of described three position four-way directional control valve after the oil-out of described second auxiliary pump, described
The T mouth of three position four-way directional control valve connects with fuel tank, the A mouth of described three position four-way directional control valve and described hydraulic lock
The first oil-in connection, the second oil-in of the B mouth of described three position four-way directional control valve and described hydraulic lock is even
Logical, that the first oil-out of described hydraulic lock is corresponding with each described load equalization hydraulic pressure unit load equalization oil
The rod chamber connection of cylinder, the second oil-out of described hydraulic lock and corresponding described load equalization oil cylinder without bar
Chamber connects, and described first pressure transducer connection is at the rod chamber of corresponding described load equalization oil cylinder with without bar
Between chamber；
The oil-out of described second main pump connects with the A mouth of described pilot valve, the B mouth of described pilot valve and oil
Case connects, the C mouth of described pilot valve respectively with the X mouth of described first inserted valve and described second inserted valve
X mouth connects, and the B mouth of described first inserted valve connects with the second oil-out of described hydraulic lock, and described second
The B mouth of inserted valve connects with the first oil-out of described hydraulic lock, each described load equalization hydraulic pressure unit
The A mouth of the first inserted valve is interconnected, the A mouth of the second inserted valve of each described load equalization hydraulic pressure unit
It is interconnected；
The oil-out of described second main pump also connects with the P mouth of described solenoid directional control valve, described solenoid directional control valve
T mouth connect with described fuel tank, the A mouth of described solenoid directional control valve and each described load equalization hydraulic pressure unit
Corresponding brake connection, it is described with corresponding that described pressure switch is connected to the A mouth of described solenoid directional control valve
On oil circuit between brake；
Described first main pump is bidirectional hydraulic pump, the first oil-out of described first main pump and each described load
The A mouth connection of the hydraulic motor that equilibrium hydraulic pressure unit is corresponding, the second oil-out of described first main pump is with described
The B mouth connection of hydraulic motor.
Specifically, each described load equalization hydraulic pressure unit also includes: the first one-way throttle valve and second unidirectional
Choke valve, the oil-in of described first one-way throttle valve connects with the second oil-out of described hydraulic lock, described
The oil-out of the first one-way throttle valve connects with the rodless cavity of corresponding described load equalization oil cylinder, and described second
The oil-in of one-way throttle valve connects with the first oil-out of described hydraulic lock, described second one-way throttle valve
Oil-out connects with the rod chamber of corresponding described load equalization oil cylinder.
Specifically, each described load equalization hydraulic pressure unit also includes: the first shuttle valve, described first single shuttle valve
The rodless cavity of the first oil-in and corresponding described load equalization oil cylinder connect, the second of described first shuttle valve
Oil-in connects with the rod chamber of corresponding described load equalization oil cylinder, the oil-out of described first shuttle valve and institute
State the first pressure transducer connection.
Specifically, described hydraulic system also includes: the first relief valve and second installs valve, described first safety
The oil-in of valve connects with the oil-out of described first auxiliary pump and described second auxiliary pump, described first relief valve
Oil-out connects with described fuel tank, and the oil-in of described second relief valve connects with the oil-out of described first auxiliary pump
Logical, the oil-out of described second relief valve connects with the oil-out of described first relief valve.
Specifically, described hydraulic system also includes: cooler and filter, the oil-in of described cooler with
The T mouth connection of described three position four-way directional control valve, the oil-out of described cooler and the oil-in of described filter
Connection, the oil-out of described filter connects with described fuel tank.
Further, described hydraulic system also includes: the 4th check valve, the oil-in of described 4th check valve
Connect with the oil-in of described filter, the oil-out of described 4th check valve and the oil-out of described filter
Connection.
Specifically, described hydraulic system also includes: the second shuttle valve and the second pressure transducer, described second shuttle
First oil-in of valve connects with the A mouth of described hydraulic motor, the second oil-in of described second shuttle valve and institute
Stating the B mouth connection of hydraulic motor, the oil-out of described second shuttle valve connects with described second pressure transducer.
Specifically, described hydraulic system also includes: main oil way valve group, and described main oil way valve group includes: first
Overflow valve and the second overflow valve, the oil-in of described first overflow valve connects with the oil-out of described second main pump,
The oil-out of described first overflow valve connects with described fuel tank, the oil-in of described second overflow valve and described the
First oil-out connection of one main pump, the oil-in of described second overflow valve connects with described fuel tank.
Specifically, described hydraulic system also includes: the 5th check valve, the oil-in of described 5th check valve with
The oil-out connection of described second main pump, the oil-out of described 5th check valve connects with the A mouth of described pilot valve
Logical.
Specifically, described hydraulic system also includes: the 4th main pump and the 5th main pump, and described 4th main pump is double
To hydraulic pump, the first oil-out of described 4th main pump connects with the first oil-out of described first main pump, institute
Second oil-out of the second oil-out and described first main pump of stating the 4th main pump connects, described 5th main pump
Oil-in connects with the oil-in of described second main pump, the oil-out of described 5th main pump and described second main pump
Oil-out connection.
The technical scheme that the embodiment of the present invention provides has the benefit that the tooth that the embodiment of the present invention provides
The hydraulic system of wheel rack type elevating mechanism, when platform structure or spud leg need to carry out lifting action, due to
The A mouth of the hydraulic motor of each lifting unit connects mutually, the B mouth of the hydraulic motor of each lifting unit
Connect mutually so that the load suffered by each hydraulic motor is equilibrium, so that hydraulic motor passes to
The load of corresponding gear-box is equilibrium, after platform structure or spud leg rise locking, and the first auxiliary pump and the
Two auxiliary pumps are in stress state, the electromagnetism of three position four-way directional control valve obtain electric after, hydraulic lock can be made to open, first
The DT3 of pilot valve obtains electric, and the first inserted valve and the second inserted valve are opened, and makes the piston rod of load equalization oil cylinder stretch
Go out or retract, and the rod chamber of multiple load equalization oil cylinder is interconnected, multiple load equalization oil cylinders without bar
Chamber is interconnected, it is achieved thereby that the load equalization between multiple gear-boxes of jacking condition and locking state, this
Outward, this hydraulic system logic is simple, and the process of equilibrium gear-box load is simple, and the load of each gear-box is equal
After weighing apparatus, it is ensured that the safety of gear-box, also protect the safety of tooth bar simultaneously, optimize pinion and-rack
The stress of elevating mechanism, extends the service life of gear-rack type lifter structure.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the main TV structure schematic diagram of the gear-rack type lifter structure that the embodiment of the present invention provides；
Fig. 2 is the plan structure schematic diagram of the gear-rack type lifter structure that the embodiment of the present invention provides；
Fig. 3 is the principle of the hydraulic system of the gear-rack type lifter structure that the embodiment of the present invention provides；
Fig. 4 is the schematic diagram of the local hydraulic system of the gear-rack type lifter structure that the embodiment of the present invention provides；
Fig. 5 is the former of another local hydraulic system of the gear-rack type lifter structure that the embodiment of the present invention provides
Reason figure.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
Embodiment
Embodiments providing the hydraulic system of a kind of gear-rack type lifter structure, this hydraulic system is fitted
For a kind of gear-rack type lifter structure, as depicted in figs. 1 and 2, this gear-rack type lifter structure bag
Include the spud leg 101 through platform structure c, the both sides of spud leg 101 are separately installed with toothed rack 101a, often
The outside of toothed rack 101a is respectively disposed with a framework 105, passes through frame link between two frameworks 105
106 are flexibly connected, and the lower end of each framework 105 is equipped with the link assembly 109 can being connected with platform structure c,
Along tooth bar 101a longitudinally all at least provided with a lifting unit on each framework 105, each lifting unit all wraps
Include hydraulic motor d, gear-box 103, gear 104, cantilever lever 107, load equalization oil cylinder a and brake c,
Gear-box 103 is arranged on framework 105, and the outfan of hydraulic motor d and the outfan of brake c are respectively
Being in transmission connection with two inputs of gear-box 103, gear 104 is arranged on the outfan of gear-box 103,
And gear 104 engages with corresponding tooth bar 101a, one end of cantilever lever 107 is fixed on gear-box 103,
The other end of cantilever lever 107 is hinged with the piston rod of load equalization oil cylinder a, and the cylinder body of load equalization oil cylinder a is solid
It is scheduled on framework 105, and load equalization oil cylinder a is arranged in parallel with spud leg 101.
As shown in Fig. 3, Fig. 4 and Fig. 5, this hydraulic system includes: first auxiliary pump the 1, second auxiliary pump 1a,
One main pump the 2, second main pump 2a, solenoid directional control valve 3, pressure switch 4 and multiple load equalization hydraulic pressure unit,
Each load equalization hydraulic pressure unit includes: three position four-way directional control valve 5, hydraulic lock the 6, first inserted valve 7,
Two inserted valves 8, pilot valve 9 and the first pressure transducer 10, the oil-out of the first auxiliary pump 1 and the second auxiliary pump
Connect with the P mouth of three position four-way directional control valve 5 after the oil-out connection of 1a, the T mouth of three position four-way directional control valve 5
Connecting with fuel tank b, the A mouth of three position four-way directional control valve 5 connects with the first oil-in of hydraulic lock 6, three
The B mouth of four-way change-over valve 5 connects with the second oil-in of hydraulic lock 6, the first oil-out of hydraulic lock 6 with
The rod chamber connection of the load equalization oil cylinder a that each load equalization hydraulic pressure unit is corresponding, the second of hydraulic lock 6
Oil-out connects with the rodless cavity of corresponding load equalization oil cylinder a, and the first pressure transducer 10 connects in correspondence
Load equalization oil cylinder a rod chamber and rodless cavity between.
The oil-out of the second main pump 2a connects with the A mouth of pilot valve 9, the B mouth of pilot valve 9 and fuel tank b
Connection, the C mouth of pilot valve 9 connects with the X mouth of the first inserted valve 7 and the X mouth of the second inserted valve 8 respectively,
The B mouth of the first inserted valve 7 connects with the second oil-out of hydraulic lock 6, the B mouth of the second inserted valve 8 and liquid
First oil-out connection of pressure lock 6, the A mouth of the first inserted valve 7 of each load equalization hydraulic pressure unit is mutual
Connection, the A mouth of the second inserted valve 8 of each load equalization hydraulic pressure unit is interconnected.
The oil-out of the second main pump 2a also connects with the P mouth of solenoid directional control valve 3, the T mouth of solenoid directional control valve 3
Connect with fuel tank b, the brake c that the A mouth of solenoid directional control valve 3 is corresponding with each load equalization hydraulic pressure unit
Connection, pressure switch 4 is connected on the oil circuit between the A mouth of solenoid directional control valve 3 and corresponding brake c.
First main pump 2 is bidirectional hydraulic pump, the first oil-out of the first main pump 2 and each load equalization hydraulic pressure
The A mouth connection of the hydraulic motor d that unit is corresponding, the second hydraulic fluid port of the first main pump 2 and the B of hydraulic motor d
Mouth connection.The quantity of multiple load equalization hydraulic pressure units and the load equalization oil in gear-rack type lifter structure
The quantity of cylinder a is identical.In the present embodiment, load equalization oil cylinder a is 4, then load equalization hydraulic pressure unit
Also it is 4.
Specifically, each load equalization hydraulic pressure unit also includes: the first one-way throttle valve 11 and the second unidirectional joint
Stream valve 12, the oil-in of the first one-way throttle valve 11 connects with the second oil-out of hydraulic lock 6, and first is unidirectional
The oil-out of choke valve 11 connects with the rodless cavity of corresponding load equalization oil cylinder a, the second one-way throttle valve 12
Oil-in connect with the first oil-out of hydraulic lock 6, the oil-out of the second one-way throttle valve 12 is with corresponding
The rod chamber connection of load equalization oil cylinder a.First one-way throttle valve 11 and the second one-way throttle valve 12 are used respectively
In the fluid flow controlling its place oil circuit.
Specifically, each load equalization hydraulic pressure unit also includes: the first shuttle valve 13, the first of the first shuttle valve 13
Oil-in connects with the rodless cavity of corresponding load equalization oil cylinder a, and the second oil-in of the first shuttle valve 13 is with right
The rod chamber connection of the load equalization oil cylinder a answered, the oil-out of the first shuttle valve 13 and the first pressure transducer 10
Connection.Fluid in the rod chamber of load equalization oil cylinder a and rodless cavity can be guided to by the first shuttle valve 13
First pressure transducer 10, the first pressure transducer 10 is real for the load equalization oil cylinder a that detection in real time is corresponding
Load suffered by border.
Specifically, this hydraulic system can also include: the first relief valve 15 and second installs valve 16, the first peace
The oil-in of full valve 15 and the oil-out connection of the second auxiliary pump 1a, the oil-out of the first relief valve 15 and fuel tank
B connects, the oil-out connection of the oil-in of the second relief valve 16 and the first auxiliary pump 1, the second relief valve 16
The oil-out connection of oil-out and the first relief valve 15.Wherein, the fluid flowed out when the first auxiliary pump 1 is higher than the
During the force value that two relief valve 16 set, fluid flows back to fuel tank b through the second relief valve 16, it is achieved automatic leakage
Pressure, when the force value that the fluid that the second auxiliary pump 1a flows out sets higher than the first relief valve 15, fluid passes through
First relief valve 15 flows back to fuel tank b, it is achieved releasing pressure automatically.
This hydraulic system can also include: the 3rd check valve 17, the oil-in of the 3rd check valve 17 and first auxiliary
The oil-out of pump 1, the oil-out of the 3rd check valve 17 connects with the P mouth of three position four-way directional control valve 5.This is years old
The fluid backflow that three check valves 17 flow out for preventing the first auxiliary pump 1.Specifically, the first auxiliary pump 1 is fuel-displaced
Mouthful after first oil-in with the second relief valve 16 connects, then can connect with the oil-in of the 3rd check valve 17.
Further, this hydraulic system can also include: cooler 18 and filter 19, cooler 18
Oil-in connects with the T mouth of three position four-way directional control valve 5, and the oil-out of cooler 18 enters with filter 19
Hydraulic fluid port connects, and the oil-out of filter 19 connects with fuel tank b.This cooler 18 is used for cooling down inflow fuel tank b
Fluid, filter 19 flows into the fluid of fuel tank b for filtering.Additionally, the first relief valve 15 is fuel-displaced
Mouth can also connect with the oil-in of cooler 18, and this cooler 18 can also be used for filtering by the first relief valve
15 and second relief valve 16 oil-out flow out fluid.
Further, this hydraulic system can also include: the 4th check valve 20, the oil-feed of the 4th check valve 20
Mouth connects with the oil-in of filter 19, and the oil-out of the 4th check valve 20 connects with the oil-out of filter 19
Logical.4th check valve 20, for controlling to flow through the oil pressure pressure of filter 19, prevents filter 19 because of mistake
High oil pressure and damage.
Specifically, this hydraulic system can also include: the second shuttle valve 21 and the second pressure transducer 22, second
First oil-in of shuttle valve 21 connects with the A mouth of hydraulic motor d, the second oil-in of the second shuttle valve 21 with
The B mouth connection of hydraulic motor d, oil-out and second pressure transducer 22 of the second shuttle valve 21 connect.Should
Second pressure transducer 22 is for detecting the oil pressure of hydraulic motor d.
Specifically, this hydraulic system can also include that main oil way valve group, main oil way valve group include: the first overflow
The oil-in of valve 14a and the second overflow valve 14b, the first overflow valve 14a and the oil-out of the second main pump 2a are even
Logical, the oil-out of the first overflow valve 14a connects with fuel tank b, the oil-in and first of the second overflow valve 14b
First oil-out connection of main pump 2, the oil-in of the second overflow valve 14b connects with fuel tank b.Main oil way valve
Group is overflow valve group, and for protecting the safety of pump group, wherein, the first overflow valve 14a is that the second main pump 2a carries
For safe pressure, the second overflow valve 14b provides safe pressure for the first main pump 2.
Specifically, this hydraulic system can also include: the 5th check valve 24, the oil-in of the 5th check valve 24
Connecting with the oil-out of the second main pump 2a, the oil-out of the 5th check valve 24 connects with the A mouth of pilot valve 9.
The oil liquid pressure that 5th check valve 24 flows out for preventing the second main pump 2a is too high.
Specifically, this hydraulic system can also include: the 4th main pump 2b and the 5th main pump 2c, the 4th main pump
2b is bidirectional hydraulic pump, first oil-out of the 4th main pump 2b and the first oil-out connection of the first main pump 2,
Second oil-out of the 4th main pump 2b and the second oil-out connection of the first main pump 2, the 5th main pump 2c enters
The oil-in connection of hydraulic fluid port and the second main pump 2a, the oil-out of the 5th main pump 2c and the second main pump 2a's is fuel-displaced
Mouth connection.4th main pump 2b and the 5th main pump 2c is respectively used to assist the first main pump 2 and the second main pump 2a to supply
Oil.Wherein, the 5th main pump 2c, the first auxiliary pump 1 and the second auxiliary pump 1a and the second main pump 2a can be all single
To hydraulic pump.
Specifically, this hydraulic system can also include: the 6th check valve 25, the oil-in of the 6th check valve 25
Connect with the T mouth of three position four-way directional control valve 5, the oil-out of the 6th check valve 25 and the oil-feed of cooler 18
Mouth connection.6th check valve 25 can control to flow into the pressure of the fluid in cooler 18, prevents fluid
Hypertonia and damage cooler 18.
Following is a brief introduction of the operation principle of this hydraulic system:
When platform structure c or spud leg 101 need to carry out lifting action, the first main pump 2 is hydraulic motor d
Thering is provided hydraulic oil, now, the DT5 of solenoid directional control valve 3 obtains electric, and brake c opens, and hydraulic motor d leaves
Begin to rotate, thus drive platform structure c or spud leg 101 to carry out lifting action, 3-position 4-way commutation now
Valve 5 is in middle position (load equalization oil cylinder a is now in self-locking state), and the first auxiliary pump 1 is in unloading condition,
The DT4 of pilot valve 9 obtains electric, and the first inserted valve 7 and the second inserted valve 8 are in closed mode, Duo Gezai
Equilibrium oil cylinder a is mutually isolated for lotus, and the first pressure transducer 10 can detect the load of each gear 104 in real time, separately
Outward, owing to the A mouth of the hydraulic motor d of each lifting unit connects mutually, the hydraulic pressure of each lifting unit
The B mouth of motor d connects mutually so that the load suffered by each hydraulic motor d is equilibrium, so that
The load of the gear-box 103 that hydraulic motor d passes to correspondence is equilibrium.
After platform structure c rises locking, when needing the load of each gear-box 103 is adjusted to equilibrium, the
One auxiliary pump 1 and the second auxiliary pump 1a is in stress state, and the DT2 of three position four-way directional control valve 5 obtains electric, hydraulic pressure
Lock 6 is opened, and the DT3 of pilot valve 9 obtains electric, makes the first inserted valve 7 and the second inserted valve 8 open, load
The piston rod of equilibrium oil cylinder a stretches out, and the rodless cavity of multiple load equalization oil cylinder a is interconnected, and makes each liter
The power suffered by cantilever lever 107 of fall unit is the most identical, and it is equal that the first pressure transducer 10 can detect each load in real time
The pressure of the rodless cavity of weighing apparatus oil cylinder a is also converted to the load of gear-box 103, it is achieved between each gear-box 103
Load equalization.
After spud leg 101 rises locking, when needing the load of each gear-box 103 is adjusted to equilibrium, first
Auxiliary pump 1 and the second auxiliary pump 1a is in stress state, and the DT1 of three position four-way directional control valve 5 obtains electric, hydraulic lock 6
Opening, the DT3 of pilot valve 9 obtains electric, makes the first inserted valve 7 and the second inserted valve 8 open, load equalization
The piston rod of oil cylinder a is regained, and the rod chamber of multiple load equalization oil cylinder a is interconnected, and makes each lifting single
The power suffered by cantilever lever 107 of unit is the most identical, and the first pressure transducer 10 can detect each load equalization oil in real time
The pressure of the rod chamber of cylinder a is also converted to the load of gear-box 103, it is achieved the load between each gear-box 103
Lotus equalizes.
The hydraulic system of the gear-rack type lifter structure that the embodiment of the present invention provides, when platform structure or spud leg
When needing to carry out lifting action, owing to the A mouth of the hydraulic motor of each lifting unit connects mutually, each
The B mouth of the hydraulic motor of lifting unit connects mutually so that the load suffered by each hydraulic motor is equilibrium
, so that it is equilibrium that hydraulic motor passes to the load of corresponding gear-box, when platform structure or spud leg
After rising locking, the first auxiliary pump and the second auxiliary pump are in stress state, and the electromagnetism of three position four-way directional control valve obtains
After electricity, hydraulic lock can be made to open, the DT3 of pilot valve obtains electric, and the first inserted valve and the second inserted valve are opened,
The piston rod making load equalization oil cylinder stretches out or retracts, and the rod chamber of multiple load equalization oil cylinder is interconnected,
The rodless cavity of multiple load equalization oil cylinders is interconnected, it is achieved thereby that jacking condition and locking state is multiple
Load equalization between gear-box, additionally, this hydraulic system logic is simple, the process letter of equilibrium gear-box load
Single, after the load equalization of each gear-box, it is ensured that the safety of gear-box, also protect tooth bar simultaneously
Safety, optimizes the stress of gear-rack type lifter structure, extends the use of gear-rack type lifter structure
Life-span.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (10)
1. the hydraulic system of a gear-rack type lifter structure, it is characterised in that described hydraulic system includes:
First auxiliary pump (1), the second auxiliary pump (1a), the first main pump (2), the second main pump (2a), solenoid directional control valve (3),
Pressure switch (4) and multiple load equalization hydraulic pressure unit, each described load equalization hydraulic pressure unit all includes:
Three position four-way directional control valve (5), hydraulic lock (6), the first inserted valve (7), the second inserted valve (8), guide
Valve (9) and the first pressure transducer (10), the oil-out of described first auxiliary pump (1) and described second auxiliary pump
(1a) connect with the P mouth of described three position four-way directional control valve (5) after oil-out connection, described 3-position 4-way
The T mouth of reversal valve (5) connects with fuel tank (b), and the A mouth of described three position four-way directional control valve (5) is with described
First oil-in connection of hydraulic lock (6), the B mouth of described three position four-way directional control valve (5) and described hydraulic pressure
Second oil-in connection of lock (6), the first oil-out of described hydraulic lock (6) is equal with each described load
The rod chamber connection of load equalization oil cylinder (a) that weighing apparatus hydraulic pressure unit is corresponding, the second of described hydraulic lock (6)
Oil-out connects with the rodless cavity of corresponding described load equalization oil cylinder (a), described first pressure transducer (10)
Connect between rod chamber and the rodless cavity of corresponding described load equalization oil cylinder (a)；
The oil-out of described second main pump (2a) connects with the A mouth of described pilot valve (9), described pilot valve
(9) B mouth connects with fuel tank (b), the C mouth of described pilot valve (9) respectively with described first inserted valve
(7) X mouth connects with the X mouth of described second inserted valve (8), the B of described first inserted valve (7)
Mouth connects with the second oil-out of described hydraulic lock (6), and the B mouth of described second inserted valve (8) is with described
First oil-out connection of hydraulic lock (6), first inserted valve (7) of each described load equalization hydraulic pressure unit
A mouth be interconnected, the A mouth of second inserted valve (8) of each described load equalization hydraulic pressure unit is mutual
Connection；
The oil-out of described second main pump (2a) also P mouth with described solenoid directional control valve (3) connects, described
The T mouth of solenoid directional control valve (3) connects with described fuel tank (b), the A mouth of described solenoid directional control valve (3) with
Brake (c) connection that each described load equalization hydraulic pressure unit is corresponding, described pressure switch (4) connects
On the oil circuit between the A mouth and corresponding described brake (c) of described solenoid directional control valve (3)；
Described first main pump (2) is bidirectional hydraulic pump, and the first oil-out of described first main pump (2) is with every
The A mouth connection of the hydraulic motor (d) that individual described load equalization hydraulic pressure unit is corresponding, described first main pump (2)
The second oil-out connect with the B mouth of described hydraulic motor (d).
Hydraulic system the most according to claim 1, it is characterised in that each described load equalization hydraulic pressure
Unit also includes: the first one-way throttle valve (11) and the second one-way throttle valve (12), described first unidirectional joint
The oil-in of stream valve (11) connects with the second oil-out of described hydraulic lock (6), described first one-way throttle
The oil-out of valve (11) connects with the rodless cavity of corresponding described load equalization oil cylinder (a), and described second is single
Connect with the first oil-out of described hydraulic lock (6) to the oil-in of choke valve (12), described second unidirectional
The oil-out of choke valve (12) connects with the rod chamber of corresponding described load equalization oil cylinder (a).
Hydraulic system the most according to claim 1, it is characterised in that each described load equalization hydraulic pressure
Unit also includes: the first shuttle valve (13), and the first oil-in of described first shuttle valve (13) is described with corresponding
The rodless cavity connection of load equalization oil cylinder (a), the second oil-in of described first shuttle valve (13) is with corresponding
The rod chamber connection of described load equalization oil cylinder (a), the oil-out of described first shuttle valve (13) and described the
One pressure transducer (10) connects.
Hydraulic system the most according to claim 1, it is characterised in that described hydraulic system also includes:
Valve (16) installed by first relief valve (15) and second, and the oil-in of described first relief valve (15) is with described
The oil-out connection of the second auxiliary pump (1a), the oil-out of described first relief valve (15) and described fuel tank (b)
Connection, the oil-in of described second relief valve (16) connects with the oil-out of described first auxiliary pump (1), institute
The oil-out of the oil-out and described first relief valve (15) of stating the second relief valve (16) connects.
Hydraulic system the most according to claim 1, it is characterised in that described hydraulic system also includes:
Cooler (18) and filter (19), the oil-in of described cooler (18) commutates with described 3-position 4-way
The T mouth connection of valve (5), the oil-out of described cooler (18) and the oil-in of described filter (19)
Connection, the oil-out of described filter (19) connects with described fuel tank (b).
Hydraulic system the most according to claim 5, it is characterised in that described hydraulic system also includes:
4th check valve (20), the oil-in of described 4th check valve (20) and the oil-feed of described filter (19)
Mouth connection, the described oil-out of the 4th check valve (20) connects with the oil-out of described filter (19).
Hydraulic system the most according to claim 1, it is characterised in that described hydraulic system also includes:
Second shuttle valve (21) and the second pressure transducer (22), the first oil-in of described second shuttle valve (21) with
The A mouth connection of described hydraulic motor (d), the second oil-in of described second shuttle valve (21) and described hydraulic pressure
The B mouth connection of motor (d), the oil-out of described second shuttle valve (21) and described second pressure transducer (22)
Connection.
Hydraulic system the most according to claim 1, it is characterised in that described hydraulic system also includes:
Main oil way valve group, described main oil way valve group includes: the first overflow valve (14a) and the second overflow valve (14b),
The oil-in of described first overflow valve (14a) connects with the oil-out of described second main pump (2a), and described
The oil-out of one overflow valve (14a) connects with described fuel tank (b), and described second overflow valve (14b) enters
Hydraulic fluid port connects with the first oil-out of described first main pump (2), the oil-in (14b) of described second overflow valve
Connect with described fuel tank (b).
Hydraulic system the most according to claim 1, it is characterised in that described hydraulic system also includes:
5th check valve (24), described 5th oil-in of check valve (24) and going out of described second main pump (2a)
Hydraulic fluid port connects, and the described oil-out of the 5th check valve (24) connects with the A mouth of described pilot valve (9).
Hydraulic system the most according to claim 1, it is characterised in that described hydraulic system also includes:
4th main pump (2b) and the 5th main pump (2c), described 4th main pump (2b) is bidirectional hydraulic pump, described
First oil-out mouth of four main pumps (2b) connects with the first oil-out of described first main pump (2), and described
Second oil-out of four main pumps (2b) connects with the second oil-out of described first main pump (2), and the described 5th
The oil-in of main pump (2c) connects with the oil-in of described second main pump (2a), described 5th main pump (2c)
Oil-out connect with the oil-out of described second main pump (2a).
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| CN201610286948.7A CN105951703B (en) | 2016-05-03 | 2016-05-03 | A kind of hydraulic system of gear-rack type lifter structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286948.7A CN105951703B (en) | 2016-05-03 | 2016-05-03 | A kind of hydraulic system of gear-rack type lifter structure |
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| CN105951703B CN105951703B (en) | 2017-12-01 |
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| CN106678100A (en) * | 2017-02-15 | 2017-05-17 | 广东精铟海洋工程股份有限公司 | Hydraulic control system used for locking device |
| CN107524661A (en) * | 2017-08-25 | 2017-12-29 | 武汉船用机械有限责任公司 | A kind of hydraulic system of rack-and-pinion lowering or hoisting gear |
| CN109577895A (en) * | 2018-11-28 | 2019-04-05 | 中国石油集团渤海钻探工程有限公司 | A kind of rotation retaining mechanism of rack pinion |
| CN111219285A (en) * | 2020-01-14 | 2020-06-02 | 自然资源部第一海洋研究所 | Wave energy power generation device |
| CN111664135A (en) * | 2020-04-23 | 2020-09-15 | 武汉船用机械有限责任公司 | Hydraulic system of gear rack lifting platform |
| CN114229730A (en) * | 2021-12-28 | 2022-03-25 | 江苏政田重工股份有限公司 | Hydraulic multi-motor driving system and operation control method for driving anchor chain wheel |
| CN116928162A (en) * | 2023-09-15 | 2023-10-24 | 启东中远海运海洋工程有限公司 | Hydraulic system with energy recovery function for ocean lifting platform |
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| CN106678100A (en) * | 2017-02-15 | 2017-05-17 | 广东精铟海洋工程股份有限公司 | Hydraulic control system used for locking device |
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| CN111664135A (en) * | 2020-04-23 | 2020-09-15 | 武汉船用机械有限责任公司 | Hydraulic system of gear rack lifting platform |
| CN114229730A (en) * | 2021-12-28 | 2022-03-25 | 江苏政田重工股份有限公司 | Hydraulic multi-motor driving system and operation control method for driving anchor chain wheel |
| CN116928162A (en) * | 2023-09-15 | 2023-10-24 | 启东中远海运海洋工程有限公司 | Hydraulic system with energy recovery function for ocean lifting platform |
| CN116928162B (en) * | 2023-09-15 | 2023-12-19 | 启东中远海运海洋工程有限公司 | Hydraulic system with energy recovery function for ocean lifting platform |
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| CN105951703B (en) | 2017-12-01 |
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