CN103122879B - A kind of hydraulic bolt formula oil cylinder elevating system - Google Patents
A kind of hydraulic bolt formula oil cylinder elevating system Download PDFInfo
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- CN103122879B CN103122879B CN201310055142.3A CN201310055142A CN103122879B CN 103122879 B CN103122879 B CN 103122879B CN 201310055142 A CN201310055142 A CN 201310055142A CN 103122879 B CN103122879 B CN 103122879B
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Abstract
The invention discloses a kind of hydraulic bolt formula oil cylinder elevating system, belong to jack-up unit hydraulic lifting system field.Described system comprises: plugging pin oil cylinder, first time plugging pin oil cylinder, three position four-way directional control valve, two-position four way change valve, the first cartridge valve, the first two-bit triplet pilot valve and 3-position 4-way electro-hydraulic reversing valve on the first hoist cylinder, first; First hydraulic fluid port of two-position four way change valve is communicated with the filler opening of elevating system, second hydraulic fluid port of two-position four way change valve closes, 3rd hydraulic fluid port of two-position four way change valve is communicated with the filler opening of the first two-bit triplet pilot valve, first oil outlet of the first two-bit triplet pilot valve is communicated with the control port of the first cartridge valve, second oil outlet of the first two-bit triplet pilot valve is communicated with fuel tank, and the 4th hydraulic fluid port of two-position four way change valve is communicated with fuel tank.Described hydraulic bolt formula oil cylinder elevating system, because the valve group quantity adopted is few, simplifies the oil circuit control of this elevating system, reduces cost of production.
Description
Technical field
The present invention relates to hydraulic lifting system field, particularly a kind of hydraulic bolt formula oil cylinder elevating system.
Background technique
Self-elevating drilling platform, be also called footing formula drill platform, it is current domestic and international application drill platform the most widely, jack-up unit comprises platform mechanism, spud leg, elevator mechanism and life building etc., during jack-up unit operation, spud leg reaches seabed, stand on sea bed, jack-up unit utilizes spud leg to hold up platform shell, and makes to leave the certain distance in sea bottom platform mechanism; During jack-up unit towage, spud leg is regained, and platform mechanism is in floating condition.
Have a kind of from installed production platform hydraulic lifting system in prior art, the hydraulic bolt formula elevating system specifically used in a kind of offshore oil production platform lifting process, it has 16 oil hydraulic cylinders, hydraulic control system and electric control system, hydraulic control system has some cover main oil pump motor groups, electro-hydraulic proportion reversing valve group is overlapped with the electromagnetic relief valve group and 4 of main oil pump motor group equivalent amount, electric control system has hydraulic cylinder travel detection device and programmable controller PLC, this invention adopts oil pump motor group, electro-hydraulic proportion reversing valve, import equilibrium valve, the synchronous close-loop control scheme of the rigid water hammer composition of outlet equilibrium valve and spud leg, it is little that hydraulic lifting system described in this patent has volume, inertia is good, the advantage that transmission efficiency is high.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
System of the prior art adopts multiple valve group to control, and causes the oil circuit control of elevating system more complicated, improves cost.
Summary of the invention
In order to solve self-elevating platform up-down system complexity, the problem that cost is higher, embodiments provides a kind of hydraulic bolt formula oil cylinder elevating system.Described technological scheme is as follows:
The invention provides a kind of hydraulic bolt formula oil cylinder elevating system, comprising: plugging pin oil cylinder, first time plugging pin oil cylinder, three position four-way directional control valve, two-position four way change valve, the first cartridge valve, the first two-bit triplet pilot valve and 3-position 4-way electro-hydraulic reversing valve on the first hoist cylinder, first; First hydraulic fluid port of described two-position four way change valve is communicated with the filler opening of elevating system, second hydraulic fluid port of described two-position four way change valve closes, 3rd hydraulic fluid port of described two-position four way change valve is communicated with the filler opening of described first two-bit triplet pilot valve, first oil outlet of described first two-bit triplet pilot valve is communicated with the control port of described first cartridge valve, second oil outlet of described first two-bit triplet pilot valve is communicated with fuel tank, and the 4th hydraulic fluid port of described two-position four way change valve is communicated with described fuel tank;
First pilot pressure control port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the filler opening of described elevating system respectively with the 4th pilot pressure control port being positioned at described first pilot pressure control port opposite side, and the second pilot pressure control port that described 3-position 4-way electro-hydraulic reversing valve is positioned at described first pilot pressure control port homonymy is communicated with described fuel tank respectively with the 3rd pilot pressure control port being positioned at described second pilot pressure control port opposite side;
First hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the filler opening of described elevating system, second hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the first hydraulic fluid port of described first cartridge valve, second hydraulic fluid port of described first cartridge valve is communicated with the rodless cavity of described first hoist cylinder, 3rd hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the rod chamber of described first hoist cylinder, and the 4th hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with described fuel tank;
First hydraulic fluid port of described three position four-way directional control valve is communicated with the filler opening of described elevating system, second hydraulic fluid port of described three position four-way directional control valve is communicated with the rodless cavity of plugging pin oil cylinder on described first, 3rd hydraulic fluid port of described three position four-way directional control valve is communicated with the rodless cavity of described first time plugging pin oil cylinder, and the 4th hydraulic fluid port of described three position four-way directional control valve is communicated with described fuel tank;
On described first, the rod chamber of plugging pin oil cylinder is communicated with the filler opening of described elevating system respectively with the rod chamber of described first time plugging pin oil cylinder.
Further, described elevating system also comprises hydraulic lock, second hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the second filler opening with the first filler opening of described hydraulic lock respectively with the 3rd hydraulic fluid port, first oil outlet of described hydraulic lock is communicated with the first hydraulic fluid port of described first cartridge valve, and the second oil outlet of described hydraulic lock is communicated with the rodless cavity of described first hoist cylinder.
Further, described elevating system also comprises: the second hoist cylinder, the 3rd hoist cylinder, the 4th hoist cylinder, the second cartridge valve, the 3rd cartridge valve, the 4th cartridge valve, the second two-bit triplet pilot valve, the 3rd two-bit triplet pilot valve and the 4th two-bit triplet pilot valve, described second two-bit triplet pilot valve, described 3rd two-bit triplet pilot valve is communicated with the 3rd hydraulic fluid port of described two-position four way change valve respectively with the filler opening of described 4th two-bit triplet pilot valve, described second two-bit triplet pilot valve, first oil outlet of described 3rd two-bit triplet pilot valve and described 4th two-bit triplet pilot valve respectively with described second cartridge valve, described 3rd cartridge valve is communicated with the control port of described 4th cartridge valve, described second two-bit triplet pilot valve, described 3rd two-bit triplet pilot valve is communicated with described fuel tank respectively with the second oil outlet of described 4th two-bit triplet pilot valve, first oil outlet of described hydraulic lock is communicated with the first hydraulic fluid port of described 4th cartridge valve with described second cartridge valve, described 3rd cartridge valve respectively, described second cartridge valve, described 3rd cartridge valve are communicated with the rodless cavity of described 4th hoist cylinder with described second hoist cylinder, described 3rd hoist cylinder respectively with the second hydraulic fluid port of described 4th cartridge valve, and described second hoist cylinder, described 3rd hoist cylinder are communicated with the second oil outlet of described hydraulic lock with the described rod chamber of the 4th hoist cylinder.
Further, described first hoist cylinder, described second hoist cylinder, the rodless cavity of described 3rd hoist cylinder and described 4th hoist cylinder respectively with described first cartridge valve, described second cartridge valve, oil circuit between second hydraulic fluid port of described 3rd cartridge valve and described 4th cartridge valve is disposed with the first relief valve, second relief valve, 3rd relief valve and the 4th relief valve, described first relief valve, described second relief valve, the oil outlet of described 3rd relief valve and described 4th relief valve is communicated with the filler opening of four the first one-way valves and described fuel tank respectively, described first relief valve, described second relief valve, the oil outlet of described 3rd relief valve and described 4th relief valve also respectively with filler opening and described first hoist cylinder of four the second one-way valves, described second hoist cylinder, described 3rd hoist cylinder is communicated with the rod chamber of described 4th hoist cylinder.
Further, described elevating system also comprises: the first pipeline explosion-proof valve, second pipeline explosion-proof valve, 3rd pipeline explosion-proof valve and the 4th pipeline explosion-proof valve, oil circuit between the rodless cavity of described first hoist cylinder and described first cartridge valve is communicated with the oil outlet of described first pipeline explosion-proof valve, oil circuit between the rodless cavity of described second hoist cylinder and described second cartridge valve is communicated with the oil outlet of described second pipeline explosion-proof valve, oil circuit between the rodless cavity of described 3rd hoist cylinder and described 3rd cartridge valve is communicated with the oil outlet of described 3rd pipeline explosion-proof valve, oil circuit between the rodless cavity of described 4th hoist cylinder and described 4th cartridge valve is communicated with the oil outlet of described 4th pipeline explosion-proof valve, described first pipeline explosion-proof valve, described second pipeline explosion-proof valve, the filler opening of described 3rd pipeline explosion-proof valve and described 4th pipeline explosion-proof valve is interconnected.
Further, described elevating system also comprises: plugging pin oil cylinder and second time plugging pin oil cylinder on second, on described second, the rodless cavity of plugging pin oil cylinder is communicated with the second hydraulic fluid port of described three position four-way directional control valve, and on described second, the rod chamber of plugging pin oil cylinder is communicated with the filler opening of described elevating system; The rodless cavity of described second time plugging pin oil cylinder is communicated with the 3rd hydraulic fluid port of described three position four-way directional control valve, and the rod chamber of described second time plugging pin oil cylinder is communicated with the filler opening of described elevating system.
Further, described elevating system also comprises three position four-way electromagnetic valve, first hydraulic fluid port of described three position four-way electromagnetic valve is communicated with the 4th hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve, second hydraulic fluid port of described three position four-way electromagnetic valve is communicated with the 3rd hydraulic fluid port of described three position four-way electromagnetic valve, and the 4th hydraulic fluid port of described three position four-way electromagnetic valve is communicated with described fuel tank.
Further, described elevating system also comprises: the 5th relief valve and the 6th relief valve, the described oil outlet of the 5th relief valve is communicated with the second hydraulic fluid port of described three position four-way electromagnetic valve, the filler opening of described 5th relief valve is communicated with the 3rd hydraulic fluid port of described three position four-way electromagnetic valve, the described filler opening of the 6th relief valve is communicated with the second hydraulic fluid port of described three position four-way electromagnetic valve, and the oil outlet of described 6th relief valve is communicated with the 3rd hydraulic fluid port of described three position four-way electromagnetic valve.
Further, described elevating system also comprises the 7th relief valve, filler opening and the drain tap of described 7th relief valve are communicated with the first hydraulic fluid port of described three position four-way electromagnetic valve respectively, and the oil outlet of described 7th relief valve is communicated with the 4th hydraulic fluid port of described three position four-way electromagnetic valve.
Particularly, the oil circuit between the first hydraulic fluid port of described three position four-way electromagnetic valve and the 4th hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is provided with main control valve group pressure transducer.
Particularly, the 4th hydraulic fluid port of described two-position four way change valve is provided with plate-type non-return valve.
Particularly, the rodless cavity of described first hoist cylinder, described second hoist cylinder, described 3rd hoist cylinder and described 4th hoist cylinder and described first pipeline explosion-proof valve, described second pipeline explosion-proof valve, oil circuit between described 3rd pipeline explosion-proof valve and the oil outlet of described 4th pipeline explosion-proof valve are respectively arranged with four board-like ball valves.
Particularly, the oil circuit between the rod chamber of described first hoist cylinder, described second hoist cylinder, described 3rd hoist cylinder and described 4th hoist cylinder and the oil outlet of described four the second one-way valves is respectively arranged with four pipeline ball valves.
Particularly, the oil circuit at the filler opening place of described first two-bit triplet pilot valve, described second two-bit triplet pilot valve, described 3rd two-bit triplet pilot valve and described 4th two-bit triplet pilot valve is provided with throttle valve.
The beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is: the invention provides a kind of hydraulic bolt formula oil cylinder elevating system, a small amount of valve group is adopted to control, simplify the oil circuit control of elevating system of the present invention, reduce the cost of production of elevating system.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of hydraulic bolt formula oil cylinder elevating system that the embodiment of the present invention provides;
Fig. 2 is the partial structurtes schematic diagram of a kind of hydraulic bolt formula oil cylinder elevating system that the embodiment of the present invention provides.
In figure: 1-fuel tank, 2-three position four-way directional control valve, 3-two-position four way change valve, 4-plate-type non-return valve, 5-hydraulic lock, 6-3-position 4-way electro-hydraulic reversing valve, 7-three position four-way electromagnetic valve, 8-pressure switch, 9-main control valve group pressure transducer, plugging pin oil cylinder on 101-first, 102-first time plugging pin oil cylinder, plugging pin oil cylinder on 111-second, 112-second time plugging pin oil cylinder, 12-hoist cylinder rod chamber pressure transducer, 13-hoist cylinder rodless cavity pressure transducer, 141-first hoist cylinder, 142-second hoist cylinder, 143-the 3rd hoist cylinder, 144-the 4th hoist cylinder, 151-first relief valve, 152-second relief valve, 153-the 3rd relief valve, 154-the 4th relief valve, 155-the 5th relief valve, 156-the 6th relief valve, 157-the 7th relief valve, 161-first pipeline explosion-proof valve, 162-second pipeline explosion-proof valve, 163-the 3rd pipeline explosion-proof valve, 164-the 4th pipeline explosion-proof valve, 171-first cartridge valve, 172-second cartridge valve, 173-the 3rd cartridge valve, 174-the 4th cartridge valve, 181-first two-bit triplet pilot valve, 182-second two-bit triplet pilot valve, 183-the 3rd two-bit triplet pilot valve, 184-the 4th two-bit triplet pilot valve, the board-like ball valve of 19-, 20-pipeline ball valve, 21-first one-way valve, 22-second one-way valve, 23-throttle valve, 24-filler opening.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
Embodiments provide a kind of hydraulic bolt formula oil cylinder elevating system, as depicted in figs. 1 and 2, this elevating system comprises: plugging pin oil cylinder 101, first time plugging pin oil cylinder 102, three position four-way directional control valve 2, two-position four way change valve 3, first cartridge valve 171, first two-bit triplet pilot valve 181 and 3-position 4-way electro-hydraulic reversing valve 6 on the first hoist cylinder 141, first; First hydraulic fluid port of two-position four way change valve 3 is communicated with the filler opening 24 of this elevating system, second hydraulic fluid port of two-position four way change valve 3 closes, 3rd hydraulic fluid port of two-position four way change valve 3 is communicated with the filler opening of the first two-bit triplet pilot valve 181, first oil outlet of the first two-bit triplet pilot valve 181 is communicated with the control port of the first cartridge valve 171, second oil outlet of the first two-bit triplet pilot valve 181 is communicated with fuel tank 1, and the 4th hydraulic fluid port of two-position four way change valve 3 is communicated with fuel tank 1.
First pilot pressure control port of 3-position 4-way electro-hydraulic reversing valve 6 is communicated with the filler opening 24 of this elevating system respectively with the 4th pilot pressure control port being positioned at described first pilot pressure control port opposite side, and the second pilot pressure control port that 3-position 4-way electro-hydraulic reversing valve 6 is positioned at the first pilot pressure control port homonymy is communicated with fuel tank 1 respectively with the 3rd pilot pressure control port being positioned at described second pilot pressure control port opposite side.First hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6 is communicated with the filler opening 24 of this elevating system, second hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6 is communicated with the first hydraulic fluid port of the first cartridge valve 171, second hydraulic fluid port of the first cartridge valve 171 is communicated with the rodless cavity of the first hoist cylinder 141,3rd hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6 and the rod chamber of the first hoist cylinder 141, the 4th hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6 is communicated with fuel tank 1.
First hydraulic fluid port of three position four-way directional control valve 2 is communicated with the filler opening 24 of this elevating system, second hydraulic fluid port of three position four-way directional control valve 2 is communicated with the rodless cavity of plugging pin oil cylinder on first 101,3rd hydraulic fluid port of three position four-way directional control valve 2 is communicated with the rodless cavity of first time plugging pin oil cylinder 102, and the 4th hydraulic fluid port of three position four-way directional control valve 2 is communicated with fuel tank 1.
On first, the rod chamber of plugging pin oil cylinder 101 is communicated with the filler opening 24 of this elevating system respectively with the rod chamber of first time plugging pin oil cylinder 102.
Further, this elevating system also comprises hydraulic lock 5, second hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6 is communicated with the second filler opening with the first filler opening of hydraulic lock 5 respectively with the 3rd hydraulic fluid port, first oil outlet of hydraulic lock 5 is communicated with the first hydraulic fluid port of the first cartridge valve 171, and the second oil outlet of hydraulic lock 5 is communicated with the rod chamber of the first hoist cylinder 141.
Further, this elevating system also comprises: the second hoist cylinder 142, the 3rd hoist cylinder 143, the 4th hoist cylinder 144, second cartridge valve 172, the 3rd cartridge valve 173, the 4th cartridge valve 174, second two-bit triplet pilot valve 182, the 3rd two-bit triplet pilot valve 183 and the 4th two-bit triplet pilot valve 184; Second two-bit triplet pilot valve 182, the 3rd two-bit triplet pilot valve 183 are communicated with the 3rd hydraulic fluid port of two-position four way change valve 3 respectively with the filler opening of the 4th two-bit triplet pilot valve 184, second two-bit triplet pilot valve 182, the 3rd two-bit triplet pilot valve 183 are communicated with the control port of the 4th cartridge valve 174 with the second cartridge valve 172, the 3rd cartridge valve 173 respectively with the first oil outlet of the 4th two-bit triplet pilot valve 184, and the second two-bit triplet pilot valve 182, the 3rd two-bit triplet pilot valve 183 are communicated with fuel tank 1 with the second oil outlet of the 4th two-bit triplet pilot valve 184; First oil outlet of hydraulic lock 5 is communicated with the first hydraulic fluid port of the 4th cartridge valve 174 with the second cartridge valve 172, the 3rd cartridge valve 173 respectively, second cartridge valve 172, the 3rd cartridge valve 173 are communicated with the rodless cavity of the 4th hoist cylinder 144 with the second hoist cylinder 142, the 3rd hoist cylinder 143 respectively with the second hydraulic fluid port of the 4th cartridge valve 174, and the second hoist cylinder 142, the 3rd hoist cylinder 143 are communicated with the second oil outlet of hydraulic lock 5 with the rod chamber of the 4th hoist cylinder 144.
Further, the first hoist cylinder 141, second hoist cylinder 142, the rodless cavity of the 3rd hoist cylinder 143 and the 4th hoist cylinder 144 respectively with the first cartridge valve 171, second cartridge valve 172, oil circuit between second hydraulic fluid port of the 3rd cartridge valve 173 and the 4th cartridge valve 174 is disposed with the first relief valve 151, second relief valve 152, 3rd relief valve 153 and the 4th relief valve 154, first relief valve 151, second relief valve 152, the oil outlet of the 3rd relief valve 153 and the 4th relief valve 154 is communicated with the filler opening of four the first one-way valves 21 and fuel tank 1 respectively, the first relief valve 151, second relief valve 152, the oil outlet of the 3rd relief valve 153 and the 4th relief valve 154 also respectively with filler opening and first hoist cylinder 141 of four the second one-way valves 22, second hoist cylinder 142, 3rd hoist cylinder 143 is communicated with the rod chamber of the 4th hoist cylinder 144, wherein, when in jack-up unit course of action, load increases suddenly, exceeds four relief valves 151, 152, 153, 154 setting value time, a part of pressure oil exceeded is through four relief valves 151, 152, 153, 154 and first one-way valve 21, flow back into fuel tank 1, simultaneously, another part pressure oil exceeded enters the rod chamber of four hoist cylinders 141,142,143,144 through the second one-way valve 22 and pipeline ball valve 20, the suction sky caused is reclaimed suddenly to piston rod and carries out repairing, the safe handling of four hoist cylinders of protection.
Further, this elevating system also comprises: the first pipeline explosion-proof valve 161, second pipeline explosion-proof valve 162, 3rd pipeline explosion-proof valve 163 and the 4th pipeline explosion-proof valve 164, oil circuit between the rodless cavity of the first hoist cylinder 141 and the first plug-in mounting 171 is communicated with the oil outlet of the first pipeline explosion-proof valve 161, oil circuit between the rodless cavity of the second hoist cylinder 142 and the second plug-in mounting 172 is communicated with the oil outlet of the second pipeline explosion-proof valve 162, oil circuit between the rodless cavity of the 3rd hoist cylinder 143 and the 3rd plug-in mounting 173 is communicated with the oil outlet of the 3rd pipeline explosion-proof valve 163, oil circuit between the rodless cavity of the 4th hoist cylinder 144 and the 4th plug-in mounting 174 is communicated with the oil outlet of the 4th pipeline explosion-proof valve 164, first pipeline explosion-proof valve 161, second pipeline explosion-proof valve 162, the filler opening of the 3rd pipeline explosion-proof valve 163 and the 4th pipeline explosion-proof valve 164 is interconnected.The filler opening of the first pipeline explosion-proof valve 161, second pipeline explosion-proof valve 162, the 3rd pipeline explosion-proof valve 163 and the 4th pipeline explosion-proof valve 164 is by series connection mutually, be the pressure of the rodless cavity in order to keep four hoist cylinders 141,142,143,144 being equal at any time, guaranteeing the synchronization accuracy of the lifting of spud leg.
Further, this elevating system also comprises: plugging pin oil cylinder 111 and second time plugging pin oil cylinder 112 on second, on second, the rodless cavity of plugging pin oil cylinder 111 is communicated with the second hydraulic fluid port of three position four-way directional control valve 2, and on second, the rod chamber of plugging pin oil cylinder 111 is communicated with the filler opening of this elevating system; The rodless cavity of second time plugging pin oil cylinder 112 is communicated with the 3rd hydraulic fluid port of three position four-way directional control valve 2, and the rod chamber of second time plugging pin oil cylinder 112 is communicated with the filler opening 24 of this elevating system.
Further, this elevating system also comprises three position four-way electromagnetic valve 7, first hydraulic fluid port of three position four-way electromagnetic valve 7 is communicated with the 4th hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6, second hydraulic fluid port of three position four-way electromagnetic valve 7 is communicated with the 3rd hydraulic fluid port of three position four-way electromagnetic valve 7, and the 4th hydraulic fluid port of three position four-way electromagnetic valve 7 is communicated with fuel tank 1.When spud leg rises or decline, by the switching of the left and right electromagnet of electromagnetic relief valve 7, set the back pressure value of system under different operating mode, ensure the normal work of system.
Further, this elevating system also comprises: the 5th relief valve 155 and the 6th relief valve 156, the oil outlet of the 5th relief valve 155 is communicated with the second hydraulic fluid port of three position four-way electromagnetic valve 7, the filler opening of the 5th relief valve 155 is communicated with the 3rd hydraulic fluid port of three position four-way electromagnetic valve 7, the filler opening of the 6th relief valve 156 is communicated with the second hydraulic fluid port of three position four-way electromagnetic valve 7, and the oil outlet of the 6th relief valve 156 is communicated with the 3rd hydraulic fluid port of three position four-way electromagnetic valve 7.
Further, this elevating system also comprises the 7th relief valve, and the filler opening of the 7th relief valve 157 and drain tap are communicated with the first hydraulic fluid port of three position four-way electromagnetic valve 7 respectively, and the oil outlet of the 7th relief valve 157 is communicated with the 4th hydraulic fluid port of three position four-way electromagnetic valve 7.
Particularly, the oil circuit between the first hydraulic fluid port of three position four-way electromagnetic valve 7 and the 4th hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6 is provided with main control valve group pressure transducer 9; Oil circuit between the rod chamber of the second oil outlet of hydraulic lock 5 and four hoist cylinders 141,142,143,144 is provided with hoist cylinder rod chamber pressure transducer 12; Oil circuit between the rodless cavity of hydraulic lock 5 first oil outlet and four hoist cylinders 141,142,143,144 is provided with hoist cylinder rodless cavity pressure transducer 13.Wherein, main control valve group pressure transducer 9 is for monitoring magnitude of back pressure during elevating system oil return; Hoist cylinder rod chamber pressure transducer 12, hoist cylinder rodless cavity pressure transducer 13 are respectively due to the pressure of the rod chamber and rodless cavity of monitoring four hoist cylinders 141,142,143,144.
Particularly, this elevating system also comprises pressure switch 8, and pressure switch 8 is communicated with hydraulic lock 5 second oil outlet, alert detecting during pressure switch 8 booster unexpected for elevating system.
Particularly, the 4th hydraulic fluid port of two-position four way change valve 3 is provided with plate-type non-return valve 4, the 4th hydraulic fluid port of two-position four way change valve 3 is communicated with the filler opening of plate-type non-return valve 4.
Particularly, the rodless cavity of the first hoist cylinder 141, second hoist cylinder 142, the 3rd hoist cylinder 143 and the 4th hoist cylinder 144 and the first pipeline explosion-proof valve 161, second pipeline explosion-proof valve 162, oil circuit between the 3rd pipeline explosion-proof valve 163 and the oil outlet of the 4th pipeline explosion-proof valve 164 are respectively arranged with four board-like ball valves 19.
Particularly, the oil circuit between the rod chamber of the first hoist cylinder 141, second hoist cylinder 142, the 3rd hoist cylinder 143 and the 4th hoist cylinder 144 and the oil outlet of the second one-way valve 22 is provided with four pipeline ball valves 20.
Particularly, the oil circuit at the filler opening place of the first two-bit triplet pilot valve 181, second two-bit triplet pilot valve 182, the 3rd two-bit triplet pilot valve 183 and the 4th two-bit triplet pilot valve 184 is provided with four throttle valve 23.
The working principle when elevating system that the embodiment of the present invention provides rises, specific as follows:
Pressure oil is entered by the filler opening 24 of this elevating system, flow into plugging pin oil cylinder 101 on first simultaneously, plugging pin oil cylinder 111 on second, first time plugging pin oil cylinder 102, the rod chamber of second time plugging pin oil cylinder 112, first hydraulic fluid port of three position four-way directional control valve 2, first hydraulic fluid port of two-position four way change valve 3, 4th pilot pressure control port of 3-position 4-way electro-hydraulic reversing valve 6 and the first hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6, because pressure oil flows in each valve above-mentioned simultaneously, so divide three aspects that the flow direction of pressure oil is described respectively below, it should be noted that, these three aspects do not have sequencing.
Two-position four-way solenoid directional control valve 3 left electromagnet obtain electric, pressure oil is flowed out by the 3rd hydraulic fluid port of two-position four-way solenoid directional control valve 3, flow to the first two-bit triplet pilot valve 181 respectively, second two-bit triplet pilot valve 182, the filler opening place of the 3rd two-bit triplet pilot valve 183 and the 4th two-bit triplet pilot valve 184, when the pressure of pressure oil reaches certain value, promote four two-bit triplet pilot valves 181, 182, 183, the spool commutation of 184, make four two-bit triplet pilot valves 181 respectively, 182, 183, 184 are in right position, now, four cartridge valves 171, 172, 173, the control port of 174 is by four two-bit triplet pilot valves 181, 182, 183, 184 communicate with fuel tank 1, now, as long as have the pressure oil of certain pressure through four cartridge valves 171, 172, 173, the main valve plug of 174, these four cartridge valves 171, 172, 173, 174 just can be opened.
The right position electromagnet of 3-position 4-way electro-hydraulic reversing valve 6 obtains electric, the right position electromagnet of three position four-way electromagnetic valve 7 obtains electric, pressure oil flows through hydraulic lock 5 through the second hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6, flow into four cartridge valves 171 respectively, 172, 173, first hydraulic fluid port of 174, open four cartridge valves 171, 172, 173, the spool of 174, respectively by four cartridge valves 171, 172, 173, second hydraulic fluid port of 174 flows out, flow through four pipeline explosion-proof valves 161 more respectively, 162, 163, 164 and board-like ball valve 19, flow into four hoist cylinders 141, 142, 143, the rodless cavity of 144, now four hoist cylinders 141, 142, 143, the rodless cavity volume of 144 increases, piston rod is protruding, promotion jack-up unit rises, simultaneously, the rod chamber pressure oil of four hoist cylinders 141,142,143,144 discharges, flow through pipeline ball valve 20, flow through hydraulic lock 5, now, three position four-way electromagnetic valve 7 is in right position, and elevating system return oil pressure selects minimum pressure values, pressure oil flows into the 3rd hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 6, flows back to fuel tank 1 through three position four-way electromagnetic valve 7.
Pressure oil, through three position four-way directional control valve 2, when three position four-way directional control valve 2 is in meta, goes up plugging pin oil cylinder 101 for two, 111 and two lower plugging pin oil cylinder 102, the rodless cavity of 112 has pressure oil to enter, due to two upper plugging pin oil cylinder 101, 111 and two lower plugging pin oil cylinder 102, the rod chamber of 112 also has pressure to enter, so two upper plugging pin oil cylinder 101, 111 and two lower plugging pin oil cylinder 102, 112 are in differential state, because rodless cavity area is greater than rod chamber area, so two upper plugging pin oil cylinder 101, 111 and two lower plugging pin oil cylinder 102, 112 are in the state that piston rod stretches out all the time, namely keep two upper plugging pin oil cylinder 101, 111 and two lower plugging pin oil cylinder 102, 112 is be in the state inserted in spud leg pin-and-hole all the time, when any one end electromagnet of three position four-way directional control valve 2 obtains electric, and two upper plugging pin oil cylinder 101, 111 and two lower plugging pin oil cylinder 102, 112 can keep one group of plugging pin oil cylinder to be in piston rod stretches out state, namely remains that one group of latch is in spud leg pin-and-hole, ensures platform safety.
The valve group quantity that the embodiment of the present invention adopts is few, simplifies the oil circuit control of elevating system of the present invention, reduces the cost of production of elevating system; In addition, the embodiment of the present invention selects the mode of Differential Control to control two upper plugging pin oil cylinder and two lower plugging pin oil cylinder, spud leg is elevated can continuous differential operation, and main control valve group pressure transducer, hoist cylinder rod chamber pressure transducer, hoist cylinder rodless cavity pressure transducer and pressure switch that the embodiment of the present invention is provided with multiple pipeline explosion-proof valve and monitors for oil circuit, can effective monitoring oil circuit of the present invention, improve Security of the present invention.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a hydraulic bolt formula oil cylinder elevating system, described elevating system comprises: plugging pin oil cylinder, first time plugging pin oil cylinder, three position four-way directional control valve, two-position four way change valve, the first cartridge valve, the first two-bit triplet pilot valve and 3-position 4-way electro-hydraulic reversing valve on the first hoist cylinder, first, it is characterized in that
First hydraulic fluid port of described two-position four way change valve is communicated with the filler opening of elevating system, second hydraulic fluid port of described two-position four way change valve closes, 3rd hydraulic fluid port of described two-position four way change valve is communicated with the filler opening of described first two-bit triplet pilot valve, first oil outlet of described first two-bit triplet pilot valve is communicated with the control port of described first cartridge valve, second oil outlet of described first two-bit triplet pilot valve is communicated with fuel tank, and the 4th hydraulic fluid port of described two-position four way change valve is communicated with described fuel tank;
First pilot pressure control port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the filler opening of described elevating system respectively with the 4th pilot pressure control port being positioned at described first pilot pressure control port opposite side, and the second pilot pressure control port that described 3-position 4-way electro-hydraulic reversing valve is positioned at described first pilot pressure control port homonymy is communicated with described fuel tank respectively with the 3rd pilot pressure control port being positioned at described second pilot pressure control port opposite side;
First hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the filler opening of described elevating system, second hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the first hydraulic fluid port of described first cartridge valve, second hydraulic fluid port of described first cartridge valve is communicated with the rodless cavity of described first hoist cylinder, 3rd hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the rod chamber of described first hoist cylinder, and the 4th hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with described fuel tank;
First hydraulic fluid port of described three position four-way directional control valve is communicated with the filler opening of described elevating system, second hydraulic fluid port of described three position four-way directional control valve is communicated with the rodless cavity of plugging pin oil cylinder on described first, 3rd hydraulic fluid port of described three position four-way directional control valve is communicated with the rodless cavity of described first time plugging pin oil cylinder, and the 4th hydraulic fluid port of described three position four-way directional control valve is communicated with described fuel tank;
On described first, the rod chamber of plugging pin oil cylinder is communicated with the filler opening of described elevating system respectively with the rod chamber of described first time plugging pin oil cylinder.
2. elevating system according to claim 1, it is characterized in that, described elevating system also comprises hydraulic lock, second hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is communicated with the second filler opening with the first filler opening of described hydraulic lock respectively with the 3rd hydraulic fluid port, first oil outlet of described hydraulic lock is communicated with the first hydraulic fluid port of described first cartridge valve, and the second oil outlet of described hydraulic lock is communicated with the rodless cavity of described first hoist cylinder.
3. elevating system according to claim 2, it is characterized in that, described elevating system also comprises: the second hoist cylinder, the 3rd hoist cylinder, the 4th hoist cylinder, the second cartridge valve, the 3rd cartridge valve, the 4th cartridge valve, the second two-bit triplet pilot valve, the 3rd two-bit triplet pilot valve and the 4th two-bit triplet pilot valve, described second two-bit triplet pilot valve, described 3rd two-bit triplet pilot valve is communicated with the 3rd hydraulic fluid port of described two-position four way change valve respectively with the filler opening of described 4th two-bit triplet pilot valve, described second two-bit triplet pilot valve, first oil outlet of described 3rd two-bit triplet pilot valve and described 4th two-bit triplet pilot valve respectively with described second cartridge valve, described 3rd cartridge valve is communicated with the control port of described 4th cartridge valve, described second two-bit triplet pilot valve, described 3rd two-bit triplet pilot valve is communicated with described fuel tank respectively with the second oil outlet of described 4th two-bit triplet pilot valve, first oil outlet of described hydraulic lock is communicated with the first hydraulic fluid port of described 4th cartridge valve with described second cartridge valve, described 3rd cartridge valve respectively, described second cartridge valve, described 3rd cartridge valve are communicated with the rodless cavity of described 4th hoist cylinder with described second hoist cylinder, described 3rd hoist cylinder respectively with the second hydraulic fluid port of described 4th cartridge valve, and described second hoist cylinder, described 3rd hoist cylinder are communicated with the second oil outlet of described hydraulic lock with the described rod chamber of the 4th hoist cylinder.
4. elevating system according to claim 3, it is characterized in that, described first hoist cylinder, described second hoist cylinder, the rodless cavity of described 3rd hoist cylinder and described 4th hoist cylinder respectively with described first cartridge valve, described second cartridge valve, oil circuit between second hydraulic fluid port of described 3rd cartridge valve and described 4th cartridge valve is disposed with the first relief valve, second relief valve, 3rd relief valve and the 4th relief valve, described first relief valve, described second relief valve, the oil outlet of described 3rd relief valve and described 4th relief valve is communicated with the filler opening of four the first one-way valves and described fuel tank respectively, described first relief valve, described second relief valve, the oil outlet of described 3rd relief valve and described 4th relief valve also respectively with filler opening and described first hoist cylinder of four the second one-way valves, described second hoist cylinder, described 3rd hoist cylinder is communicated with the rod chamber of described 4th hoist cylinder.
5. elevating system according to claim 4, it is characterized in that, described elevating system also comprises: the first pipeline explosion-proof valve, second pipeline explosion-proof valve, 3rd pipeline explosion-proof valve and the 4th pipeline explosion-proof valve, oil circuit between the rodless cavity of described first hoist cylinder and described first cartridge valve is communicated with the oil outlet of described first pipeline explosion-proof valve, oil circuit between the rodless cavity of described second hoist cylinder and described second cartridge valve is communicated with the oil outlet of described second pipeline explosion-proof valve, oil circuit between the rodless cavity of described 3rd hoist cylinder and described 3rd cartridge valve is communicated with the oil outlet of described 3rd pipeline explosion-proof valve, oil circuit between the rodless cavity of described 4th hoist cylinder and described 4th cartridge valve is communicated with the oil outlet of described 4th pipeline explosion-proof valve, described first pipeline explosion-proof valve, described second pipeline explosion-proof valve, the filler opening of described 3rd pipeline explosion-proof valve and described 4th pipeline explosion-proof valve is interconnected.
6. elevating system according to claim 1, it is characterized in that, described elevating system also comprises: plugging pin oil cylinder and second time plugging pin oil cylinder on second, on described second, the rodless cavity of plugging pin oil cylinder is communicated with the second hydraulic fluid port of described three position four-way directional control valve, and on described second, the rod chamber of plugging pin oil cylinder is communicated with the filler opening of described elevating system; The rodless cavity of described second time plugging pin oil cylinder is communicated with the 3rd hydraulic fluid port of described three position four-way directional control valve, and the rod chamber of described second time plugging pin oil cylinder is communicated with the filler opening of described elevating system.
7. elevating system according to claim 1, it is characterized in that, described elevating system also comprises three position four-way electromagnetic valve, first hydraulic fluid port of described three position four-way electromagnetic valve is communicated with the 4th hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve, second hydraulic fluid port of described three position four-way electromagnetic valve is communicated with the 3rd hydraulic fluid port of described three position four-way electromagnetic valve, and the 4th hydraulic fluid port of described three position four-way electromagnetic valve is communicated with described fuel tank.
8. elevating system according to claim 7, it is characterized in that, described elevating system also comprises: the 5th relief valve and the 6th relief valve, the described oil outlet of the 5th relief valve is communicated with the second hydraulic fluid port of described three position four-way electromagnetic valve, the filler opening of described 5th relief valve is communicated with the 3rd hydraulic fluid port of described three position four-way electromagnetic valve, the described filler opening of the 6th relief valve is communicated with the second hydraulic fluid port of described three position four-way electromagnetic valve, and the oil outlet of described 6th relief valve is communicated with the 3rd hydraulic fluid port of described three position four-way electromagnetic valve.
9. elevating system according to claim 7, it is characterized in that, described elevating system also comprises the 7th relief valve, filler opening and the drain tap of described 7th relief valve are communicated with the first hydraulic fluid port of described three position four-way electromagnetic valve respectively, and the oil outlet of described 7th relief valve is communicated with the 4th hydraulic fluid port of described three position four-way electromagnetic valve.
10. elevating system according to claim 7, is characterized in that, the oil circuit between the first hydraulic fluid port of described three position four-way electromagnetic valve and the 4th hydraulic fluid port of described 3-position 4-way electro-hydraulic reversing valve is provided with main control valve group pressure transducer.
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| CN201310055142.3A CN103122879B (en) | 2013-02-21 | 2013-02-21 | A kind of hydraulic bolt formula oil cylinder elevating system |
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| CN201310055142.3A CN103122879B (en) | 2013-02-21 | 2013-02-21 | A kind of hydraulic bolt formula oil cylinder elevating system |
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| CN103994111B (en) * | 2014-04-16 | 2016-01-20 | 武汉船用机械有限责任公司 | A kind of hydraulic bolt lift platform hydraulic control system |
| CN104454714B (en) * | 2014-09-29 | 2017-01-18 | 武汉船用机械有限责任公司 | Hydraulic power control system for hydraulic plug type lifting system |
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| CN106194866B (en) * | 2016-08-25 | 2018-06-05 | 武汉船用机械有限责任公司 | The continuous lifting hydraulic control system of ocean platform |
| CN106246632B (en) * | 2016-09-18 | 2017-12-15 | 上海衡拓船舶设备有限公司 | The spud leg fast lifting hydraulic circuit of hydraulic bolt formula jacking system |
| CN108194435B (en) * | 2018-03-29 | 2023-09-12 | 大连华锐重工集团股份有限公司 | Bolt type marine lifting platform synchronous hydraulic system and control method thereof |
| CN113685394A (en) * | 2021-08-31 | 2021-11-23 | 徐州徐工矿业机械有限公司 | High-pressure large-flow oil cylinder regeneration hydraulic system of excavator |
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