CN203908295U - Energy-saving hydraulic control apparatus for stepping heating furnace of large strip rolling machine - Google Patents
Energy-saving hydraulic control apparatus for stepping heating furnace of large strip rolling machine Download PDFInfo
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- CN203908295U CN203908295U CN201320020468.8U CN201320020468U CN203908295U CN 203908295 U CN203908295 U CN 203908295U CN 201320020468 U CN201320020468 U CN 201320020468U CN 203908295 U CN203908295 U CN 203908295U
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Abstract
An energy-saving hydraulic control apparatus for a stepping heating furnace of a large strip rolling machine belongs to the technical field of metallurgical hydraulic control. The energy-saving hydraulic control apparatus comprises a hydraulic station and a hydraulic valve stand, wherein the hydraulic station is formed by a liquid level controller, an electric heater, a temperature controller, a pump motor set, an electromagnetic unloading valve, a high pressure one-way valve, a high pressure oil filter, a high pressure manometer, an energy storer set, a system oil return oil filter, a circulating filter pump set, a low pressure one-way valve, a low pressure manometer, a low pressure oil filter, a cooler and a cooling water valve; and the hydraulic valve stand consists of a proportional flow valve, an electromagnetic directional valve, an insertion inlet pressure compensator, an insertion one-way valve, an insertion electromagnetic cone valve with a shuttle valve, an insertion electromagnetic cone valve, an insertion hydraulic control cone valve with a shuttle valve, an insertion overflow valve, an energy storer set, a one-way valve and an elevating hydraulic cylinder. The energy-saving hydraulic control apparatus for the stepping heating furnace of the large strip rolling machine is advantageous in that power source is provided via the hydraulic station, so energy can be conserved and equipment cost can be reduced; and the stepping heating furnace can be effectively and accurately controlled via the hydraulic valve station according to technologies.
Description
Technical field
The utility model belongs to metallurgical technical field of hydraulic, and a kind of energy-conserving hydraulic control device of large strip rolling mill walking beam furnace is particularly provided.
Background technology
Walking beam furnace is a kind of widely used more advanced heating steel billet equipment of metallurgy industry.Walking beam furnace is generally comprised of body of heater, walking machinery equipment, cooling device and supporting instrumentation etc.Walking machinery equipment is wherein comprised of " lift frame " and " translational frame "; " lift frame " used lifting hydraulic cylinder to make it to do ascending, descending campaign, and " translational frame " used translation hydraulic cylinder to make it to move horizontally." translational frame " is placed on " lift frame "." lift frame " of walking beam furnace and the movement locus of " translational frame " form a rectangle, see Fig. 1.
" rising " marking in Fig. 1 and " decline " are the actions of " lift frame ", and " advancing " and " retreating " is the action of " translational frame ".Details are as follows: " rising " process built-in beam position c, the extreme position d of " lift frame " upward stroke, the extreme position e of " translational frame " forward stroke, " decline process built-in beam position f.The extreme position g of " lift frame " descending stroke, the extreme position h of " translational frame " backward travel, (overlapping with the initial position of " lift frame ").
By technological requirement, " lift frame " of walking beam furnace and the motion process of " translational frame " are as follows: first " dress steel machine " pushes cold steel billet in stove, be put on the support of built-in beam (being also referred to as " Jing Liang "), then lifting hydraulic cylinder starts action from initial position h, promoting " lift frame " and " translational frame " placed on it rises together, in uphill process, hold up lightly " Jing Liang " upper cold steel billet of placing during through position c, " lift frame " continues to rise to limes superiors position d and stops; Then by translation hydraulic cylinder along continuous straight runs promotion " translational frame " and cold steel billet placed on it, done the movement of horizontal direction, to front extreme position e, stop; Then lifting hydraulic cylinder declines, drive " lift frame " and " translational frame " and cold steel billet placed on it thereof to decline together, in decline process during to position f steel billet gently to be put into " Jing Liang " upper, " lift frame " continues to decline, to limit inferior position, g stops; The extreme position h that last translation hydraulic cylinder along continuous straight runs pulls " translational frame " to get back to backward travel stops.So just completed " stepping " process, made to go a step further before cold steel billet.So circulation is gone down, and just makes steel billet advance in heating furnace the inside heating edge, until steel billet " stepping " to discharging door place, has been heated to the steel billet wait of 1400 ℃ of left and right, comes out of the stove.The utility model is mainly the hydraulic control system for large strip rolling mill large-scale walking beam furnace walking machinery used.
Hydraulic Station of the present utility model supplies pressure oil to the hydraulic valve platform of translation hydraulic cylinder and lifting hydraulic cylinder simultaneously.But the utility model only relates to the hydraulic valve platform of lift cylinder, do not comprise the hydraulic valve platform of translation hydraulic cylinder.
Summary of the invention
The purpose of this utility model is to provide a kind of energy-conserving hydraulic control device of large strip rolling mill walking beam furnace, and lift cylinder hydraulic valve platform not only can make walking beam furnace obtain effectively and accurately controlling by technological requirement, and reaches energy-conservation effect.The utility model is applicable to newly-designed project, is also applicable to the transformation of old equipment, has wide popularization market prospects.
The utility model is mainly the hydraulic control device for the large-scale walking beam furnace of large strip rolling mill." lift frame " and " translational frame " is all steel construction, and weight is large, also has in addition attached equipment, Ru Shuiliang, and water sealed tank and turbid circulating water wherein, apparatus for vapour-cooling etc., fill the steel billet of stove in addition, and these are all the load of lifting hydraulic cylinder.The walking beam furnace of 2250mm hot plate hoop mill of take is example, and walking beam furnace is filled after steel billet, and whole load of lifting hydraulic cylinder reach 1700 tons." lift frame " needs 4 lifting hydraulic cylinders to promote, and just can complete lifting action.Therefore hydraulic system pressure is up to 21MPa, and system total flow reaches 1500L/min.Consequently, design according to a conventional method hydraulic system, the hydraulic pump quantity needing is many, reaches 6; The hydraulic pump specification needing is large, reaches 250ml/r, and the flow of every pump reaches the driving motor rotating speed 1480r/min of 370L/min(hydraulic pump); The driving motor power of hydraulic pump is large, and every Delta is to 132kw, and motor general power reaches 792kw; Because hydraulic pump quantity is many, and specification is large, so volume of fuel tank must be large, reaches 12000L, and not only floor space is large, and owing to must being stainless steel, investment is large.
The utility model comprises Hydraulic Station and lift cylinder hydraulic valve platform.Hydraulic Station can be in energy-conservation mode to hydraulic valve platform for pressure oil, lift cylinder hydraulic valve platform is with energy-conservation control loop, make lift cylinder can be steadily, exactly by the action of technological requirement control lift cylinder, realize again energy-conservation.Because the oil mass of lift cylinder consumption is far longer than translation cylinder, so only relate to lift cylinder hydraulic valve platform here.
Method for designing routinely, only, from the control reliability consideration of hydraulic system, the required hydraulic oil of hydraulic cylinder is all directly supplied with hydraulic pump.The walking beam furnace of 2250mm hot plate hoop mill of take is example, due to load greatly, need 4 lift cylinder just can complete the lifting of walking beam furnace.The oil mass of lift cylinder upward stroke is maximum, the oil mass of 4 lift cylinder is up to 1500L/min, all use hydraulic pump DFF Direct Fuel Feed, need specification is 6 of the high-pressure pumps of 250ml/r for this reason, and because lift cylinder load is up to 1700 tons, making the oil pressure of hydraulic system up to 21Mpa, result makes the driving motor power of every pump reach 132kw, the driving motor general power of 6 pumps reaches 792kw, and power consumption is very large.Hydraulic Station also needs very large fuel tank, reaches 12000L, also makes the electric heater capacity of fuel tank reach 24kw.
The off the beaten track mentality of designing of the utility model, not only considers reliability, stationarity and the accuracy of hydraulic control, more will consider energy saving, is the hydraulic control system with energy-conservation new concept design walking beam furnace.
Characteristics of energy saving of the present utility model is embodied in two links, and first Hydraulic Station adopts hydraulic pump to combine the mode of fuel feeding with accumulator, and it two is that lift cylinder hydraulic valve platform adopts special energy-conservation Differential Control loop, and details are as follows.
The method that Hydraulic Station adopts hydraulic pump to combine fuel feeding with accumulator can meet the needs of the large flow of walking beam furnace hydraulic control system, has reduced again the burden of hydraulic pump, so can reduce quantity and the specification of hydraulic pump.Method for designing routinely needs 6 hydraulic pumps, and the utility model reduces to 4 hydraulic pumps; It is 250ml/r that conventional method for designing needs every hydraulic pressure pump size, and it is 180ml/r that the utility model is reduced to every hydraulic pump specification.Consequently not only reduced the fund input of buying hydraulic pump, and reduced the driving motor power of hydraulic pump, from every power of motor 132kw, be reduced to 110kw, motor general power reduces to 440kw from 792kw, reduce by nearly 1/2 power consumption, accomplished significantly energy-conservation.Using accumulator is the energy-conservation important measures of the utility model.Also there is people to use accumulator in the hydraulic system of walking beam furnace, be referred to as hydraulic counterweight, the design of hydraulic counterweight must increase by 1 balance hydraulic cylinder in addition, accumulator is this balance hydraulic cylinder service, rather than be used in the master control system of Hydraulic Station, only as a kind of supplementary means application.The main working barrel quantity of Hydraulic Station does not reduce, and is still 6, and main work pump size is also constant, is still 250ml/r.This hydraulic counterweight can only, for transforming existing old Hydraulic Station, have essential difference with the utility model.
Lift cylinder hydraulic valve platform has adopted special Differential Control loop.In lift cylinder descending stroke, without hydraulic pump fuel feeding, but utilize the load of walking beam furnace that lift cylinder is declined completely.And the oil of lift cylinder plunger shaft flows directly to lift cylinder rod end chamber, unnecessary oil returns to fuel tank.Hydraulic pump is to the oil mass consuming before accumulator supplements it during this period, is full of the motor of hydraulic pump after accumulator and quits work, and no longer consumes electric energy, and this is also energy-conservation important step.
Hydraulic Station of the present utility model is shown in Fig. 2: comprise fuel tank, fluid level controller, electric heater, temperature controller, the first working barrel group of motors, the second working barrel group of motors, the 3rd working barrel group of motors and the 4th working barrel group of motors, the first unloading electromagnetic valve, the second unloading electromagnetic valve, the 3rd unloading electromagnetic valve and the 4th unloading electromagnetic valve, the first high pressure check valve, the second high pressure check valve, third high is pressed check valve and the 4th high pressure check valve, the first high-pressure filter, the second high-pressure filter, third high filter pressed oil device and the 4th high-pressure filter, the first high-pressure manometer, the second high-pressure manometer, third high pressure pressure table and the 4th high-pressure manometer, Accumulator arrangements, system oil return oil filter, be circulated throughout filter pump group, low pressure check valve, low pressure gauge, low-pressure filter, cooler, cooling water valve.
P is the total pressuring oil pipe of Hydraulic Station (hydraulic system), and T is the total oil return pipe of Hydraulic Station (hydraulic system), and L is the total drain mast of hydraulic system, and W1 is cooling water supply pipe, and W2 is CWR.
Wherein, fluid level controller 1, electric heater 2, temperature controller 4 are all arranged on fuel tank 3; The first unloading electromagnetic valve 9, the first high pressure check valve 13, the first high-pressure filter 17, the first high-pressure manometer 21 are all arranged on the first outlet valve block C1 of the first working barrel group of motors 5; The second unloading electromagnetic valve 10, the second high pressure check valve 14, the second high-pressure filter 18 and the second high-pressure manometer 22 are all arranged on the second outlet valve block C2 of the second working barrel group of motors 6; The 3rd unloading electromagnetic valve 11, third high press check valve 15, third high filter pressed oil device 19 and third high pressure pressure table 23 to be all arranged on the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7; The 4th unloading electromagnetic valve 12, the 4th high pressure check valve 16, the 4th high-pressure filter 20 and the 4th high-pressure manometer 24 are all arranged on the 4th outlet valve block C4 of the 4th working barrel group of motors 8.
Suction inlet S1, S2, S3, the S4 of the first working barrel group of motors 5, the second working barrel group of motors 6, the 3rd working barrel group of motors 7, the 4th working barrel group of motors 8 are connected in parallel with steel pipe, and then connect with steel tube the S mouth of fuel tank.The force feed mouth P1 of the first working barrel group of motors 5 is connected the P1 mouth of the first outlet valve block C1 of the first working barrel group of motors 5 with steel pipe with high-pressure hose; The force feed mouth of the second working barrel group of motors 6 is connected the P2 mouth of the second outlet valve block C2 of the second working barrel group of motors 6 with steel pipe with high-pressure hose; The force feed mouth of the 3rd working barrel group of motors 7 is connected the P3 mouth of the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7 with steel pipe with high-pressure hose; The force feed mouth of the 4th working barrel group of motors 8 is connected the P4 mouth of the 4th outlet valve block C4 of the 4th working barrel group of motors 8 with steel pipe with high-pressure hose.The T4 mouth of the T3 mouth of the T2 mouth of the T1 mouth of the first outlet valve block C1 of the first working barrel group of motors 5 and the second outlet valve block C2 of the second working barrel group of motors 6 and the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7 and the 4th outlet valve block C4 of the 4th working barrel group of motors 8 is connected in parallel with steel pipe, and then connects with steel tube on total oil return pipe T of Hydraulic Station.The P8 mouth of the P7 mouth of the P6 mouth of the P5 mouth of the first outlet valve block C1 of the first working barrel group of motors 5 and the second outlet valve block C2 of the second working barrel group of motors 6 and the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7 and the 4th outlet valve block C4 of the 4th working barrel group of motors 8 is connected in parallel with steel pipe, and then connects with steel tube on total pressuring oil pipe P of Hydraulic Station.The force feed interface P9 of Accumulator arrangements 25 connects with steel tube on total pressuring oil pipe P of Hydraulic Station.The oil return interface T5 of Accumulator arrangements 25 connects with steel tube on total oil return pipe T of Hydraulic Station.
Total oil return pipe T of Hydraulic Station connects with steel tube the entrance of system oil return oil filter 26, and the outlet of system oil return oil filter 26 connects with steel tube fuel tank.
The total drain mast L of system connects with steel tube fuel tank.
The suction inlet that is circulated throughout filter pump group 27 connects with steel tube first mouthful of S1 of fuel tank.The force feed mouth that is circulated throughout filter pump group 27 connects with steel tube the entrance of low pressure check valve 28, the outlet of low pressure check valve 28 connects with steel tube the entrance of Pressure gauge 29 and low-pressure filter 30, the outlet of low-pressure filter 30 connects with steel tube the entrance of cooler 32, and the outlet of cooler 32 connects with steel tube fuel tank.The cooling water inlet of cooler 32 connects with steel tube the outlet of cooling water valve 31, and the entrance of cooling water valve 31 connects with steel tube the feed pipe W1 of cooling water, and the coolant outlet of cooler 32 connects with steel tube the return pipe W2 of cooling water.
Lift cylinder hydraulic valve platform of the present utility model is shown in Fig. 3: comprise proportional flow control valve, solenoid directional control valve, plug-in inlet pressure compensator, plug-in one-way valve, the plug-in electromagnetism cone valve with shuttle valve, plug-in electromagnetism cone valve, with plug-in hydraulic control cone valve, plug-in overflow valve, Accumulator arrangements, check valve and the lifting hydraulic cylinder of shuttle valve.Wherein, proportional flow control valve 35, solenoid directional control valve 36, plug-in inlet pressure compensator 43, plug-in one-way valve 41, the first plug-in electromagnetism cone valve 42 with shuttle valve and the second plug-in electromagnetism cone valve 46, the first plug-in electromagnetism cone valve 39, the second plug-in electromagnetism cone valve 40 and plug-in overflow valve 38, Accumulator arrangements 44 and check valve 45 with shuttle valve are all arranged on a large valve piece F.The first plug-in hydraulic control cone valve 48 with shuttle valve and the 3rd plug-in electromagnetism cone valve 49 are arranged on a first little valve piece F1, the second plug-in hydraulic control cone valve 51 with shuttle valve and the 4th plug-in electromagnetism cone valve 52 are arranged on a second little valve piece F2, it is upper that the 3rd plug-in hydraulic control cone valve 54 with shuttle valve and the 5th plug-in electromagnetism cone valve 55 are arranged on a 3rd little valve piece F3, and the plug-in hydraulic control cone valve 57 of four-tape shuttle valve and the 6th plug-in electromagnetism cone valve 58 are arranged on a 4th little valve piece F4.
The entrance of the second plug-in electromagnetism cone valve 46 with shuttle valve connects with steel tube total pressuring oil pipe P of system, the outlet of the second plug-in electromagnetism cone valve 46 with shuttle valve connects the entrance of plug-in inlet pressure compensator 43 and the outlet of the first plug-in electromagnetism cone valve 42 with shuttle valve by the duct, inside of valve piece, the outlet of plug-in inlet pressure compensator 43 connects the entrance A of proportional flow control valve 35 by the duct, inside of valve piece, the outlet B of proportional flow control valve 35 connects the Y9 mouth of the entrance of plug-in one-way valve 41 and the entrance of the second plug-in electromagnetism cone valve 40 and plug-in inlet pressure compensator 43 by the duct, inside of valve piece, the outlet of plug-in one-way valve 41 connects the entrance of the first plug-in electromagnetism cone valve 42 with shuttle valve by the duct, inside of valve piece, and the entrance that is connected respectively the first plug-in hydraulic control cone valve 48 with shuttle valve by mode in parallel with steel pipe with high-pressure rubber pipe, the entrance of the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd with the entrance of plug-in hydraulic control cone valve 54 of shuttle valve and the entrance of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve.The outlet of the first plug-in hydraulic control cone valve 48 with shuttle valve connects with steel tube the piston side interface of the first hydraulic cylinder 47, the outlet of the second plug-in hydraulic control cone valve 51 with shuttle valve connects with steel tube the piston side interface of the second hydraulic cylinder 50, the outlet of the 3rd plug-in hydraulic control cone valve 54 with shuttle valve connects with steel tube the piston side interface of the 3rd hydraulic cylinder 53, and the outlet of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve connects with steel tube the piston side interface of the 4th hydraulic cylinder 56.The entrance of the first plug-in hydraulic control cone valve 48 with shuttle valve connects with steel tube the piston rod side interface of the first hydraulic cylinder 47 by the outlet of entrance the 3rd plug-in electromagnetism cone valve 49 of duct, inside connection the 3rd plug-in electromagnetism cone valve 49 of the first little valve piece F1, the entrance of the second plug-in hydraulic control cone valve 51 with shuttle valve connects the entrance of the 4th plug-in electromagnetism cone valve 52 by the duct, inside of the second little valve piece F2, the outlet of the 4th plug-in electromagnetism cone valve 52 connects with steel tube the piston rod side interface of the second hydraulic cylinder 50, the entrance of the 3rd plug-in hydraulic control cone valve 54 with shuttle valve connects the entrance of the 5th plug-in electromagnetism cone valve 55 by the duct, inside of the 3rd little valve piece F3, the outlet of the 5th plug-in electromagnetism cone valve 55 connects with steel tube the piston rod side interface of the 3rd hydraulic cylinder 53, the entrance of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve connects the entrance of the 6th plug-in electromagnetism cone valve 58 by the duct, inside of the 4th little valve piece F4, the outlet of the 6th plug-in electromagnetism cone valve 58 connects with steel tube the piston rod side interface of the 4th hydraulic cylinder 56.The piston rod side interface of the piston rod side interface of the piston rod side interface of the first hydraulic cylinder 47, the second hydraulic cylinder 50, the 3rd hydraulic cylinder 53 is connected with high-pressure rubber pipe with steel pipe respectively in parallel with the piston rod side interface of the 4th hydraulic cylinder 56, then connect with steel tube the entrance of the first plug-in electromagnetism cone valve 39, the outlet of the first plug-in electromagnetism cone valve 39 connects second outlet of plug-in electromagnetism cone valve 40 and the entrance of plug-in overflow valve 38 by the duct, inside of large valve piece F, and the outlet of plug-in overflow valve 38 connects with steel tube total oil return pipe T of system.Total pressuring oil pipe P of Pressure gauge 37 use high-pressure rubber pipe connected systems.The entrance of check valve 45 connects with steel tube total pressuring oil pipe P of system, and the outlet of check valve 45 connects with steel tube the entrance P10 of Accumulator arrangements 44, and the oil return inlet T 10 of Accumulator arrangements 44 connects with steel tube total oil return pipe T of system.The oil inlet P 2 of solenoid directional control valve 36 connects with steel tube the entrance P10 of Accumulator arrangements 44, and by the duct, inside of large valve piece F connect in parallel the second plug-in electromagnetism cone valve 46 with shuttle valve control port X12, the first control port X8 of plug-in electromagnetism cone valve 42 with shuttle valve, the control port X6 of the control port X of proportional flow control valve 35, the second plug-in electromagnetism cone valve 40, the control port X5 of the first plug-in electromagnetism cone valve 39.The oil return inlet T 2 of solenoid directional control valve 36 connects control oil return opening Y12, the control oil return opening Y8 of the first plug-in electromagnetism cone valve 42 with shuttle valve of the second plug-in electromagnetism cone valve 46 with shuttle valve, the control oil return opening Y of proportional flow control valve 35, the control oil return opening Y6 of the second plug-in electromagnetism cone valve 40, the control oil return opening Y4 of the control oil return opening Y5 of the first plug-in electromagnetism cone valve 39 and plug-in overflow valve 38, then connect with steel tube total drain mast L of system in parallel by the duct, inside of large valve piece F.
The outlet B2 of solenoid directional control valve 36 is by the duct, inside of large valve piece F, then with steel pipe, be connected in parallel the pilot control hydraulic fluid port X13 of the first plug-in hydraulic control cone valve 48 with shuttle valve with high-pressure rubber pipe, the pilot control hydraulic fluid port X16 of the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd with the pilot control hydraulic fluid port X19 of plug-in hydraulic control cone valve 54 of shuttle valve and the pilot control hydraulic fluid port X22 of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve.
The entrance P10 of Accumulator arrangements 44 with steel pipe and high-pressure rubber pipe, be connected respectively the control port X14 of the first plug-in hydraulic control cone valve 48 with shuttle valve in parallel, the control port X17 of the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd with the control port X20 of plug-in hydraulic control cone valve 54 of shuttle valve and the control port X23 of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve.
The control oil return opening Y23 of the control oil return opening Y20 of the control oil return opening Y17 of the control oil return opening Y14 of the first plug-in hydraulic control cone valve 48 with shuttle valve, the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd plug-in hydraulic control cone valve 54 with shuttle valve and the plug-in hydraulic control cone valve 57 of four-tape shuttle valve is connected with high-pressure rubber pipe in parallel with steel pipe, then connects with steel tube total drain mast L of system.
The contrast of the major parameter of the utility model and traditional design scheme is in Table 1.
Table 1
As can be seen from Table 1, the utility model is than the superior part of traditional design scheme:
1, work pump size has reduced, and from 250ml/r, is reduced to 180ml/r, and quantity reduces to 4 from 6, thereby has reduced in large quantities equipment investment.
2, the driving motor general power of working barrel has reduced, and from 792kw, reduces to 440kw, economizes on electricity approximately 1/2.
3, the driving motor power of circulating pump is reduced to 11kw from 44kw, economizes on electricity 4 times.
4, the fuel tank of manufacturing with expensive stainless-steel sheet, volume is reduced to 6000L from 12000L, volume reducing 1/2, thus saved a large number of investment.
5, because work pump size reduces and the minimizing of quantity, the specification of high-pressure filter (being all to select expensive imported product conventionally) is reduced, quantity reduces, thereby has reduced equipment investment.
6, because volume of fuel tank subtracts, be a half, the specification of cooler (being all to select expensive imported product conventionally) reduced, thereby reduced equipment investment.
7, owing to not needing oil pump feed at lift cylinders descending stroke, working barrel motor quits work, thereby has saved power consumption.
Above advantage has illustrated that the utility model is best energy-saving design scheme.
Accompanying drawing explanation
Fig. 1 is lift frame and the translational frame regular-shape motion trajectory diagram of walking beam furnace, and wherein, " rising " and " decline " is the action of " lift frame ", and " advancing " and " retreating " is the action of " translational frame ".Details are as follows: " rising " process built-in beam position c, the extreme position d of " lift frame " upward stroke, the extreme position e of " translational frame " forward stroke, " decline process built-in beam position f.The extreme position g of " lift frame " descending stroke, the extreme position h of " translational frame " backward travel, (overlapping with the initial position of " lift frame ").
Fig. 2 is Hydraulic Station schematic diagram of the present utility model: wherein, containing fuel tank 3, fluid level controller 1, electric heater 2, temperature controller 4, the first working barrel group of motors 5, the second working barrel group of motors 6, the 3rd working barrel group of motors 7, the 4th working barrel group of motors 8, the first unloading electromagnetic valve 9, the second unloading electromagnetic valve 10, the 3rd unloading electromagnetic valve 11, the 4th unloading electromagnetic valve 12, the first high pressure check valve 13, the second high pressure check valve 14, third high is pressed check valve 15, the 4th high pressure check valve 16, the first high-pressure filter 17, the second high-pressure filter 18, third high filter pressed oil device 19, the 4th high-pressure filter 20, the first high-pressure manometer 21, the second high-pressure manometer 22, third high pressure pressure table 23, the 4th high-pressure manometer 24, Accumulator arrangements 25, system oil return oil filter 26, be circulated throughout filter pump group 27, low pressure check valve 28, low pressure gauge 29, low-pressure filter 30, , cooling water valve 31, cooler 32.
In figure, digital code implication is as follows: P is the total pressuring oil pipe of Hydraulic Station (being hydraulic system pressure total pipeline), T is the total oil return pipe of Hydraulic Station (being hydraulic system oil return total pipeline), L is the total drain mast of hydraulic system, and W1 is cooling water supply pipe, and W2 is CWR.
Fig. 3 is lift cylinder hydraulic valve platform schematic diagram of the present utility model: wherein, containing proportional flow control valve 35, solenoid directional control valve 36, plug-in inlet pressure compensator 43, plug-in one-way valve 41, the first plug-in electromagnetism cone valve 42 with shuttle valve, the second plug-in electromagnetism cone valve 46 with shuttle valve, the first plug-in electromagnetism cone valve 39, the second plug-in electromagnetism cone valve 40, the 3rd plug-in electromagnetism cone valve 49, the 4th plug-in electromagnetism cone valve 52, the 5th plug-in electromagnetism cone valve 55, the 6th plug-in electromagnetism cone valve 58, the first plug-in hydraulic control cone valve 48 with shuttle valve, the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd plug-in hydraulic control cone valve 54 with shuttle valve, the plug-in hydraulic control cone valve 57 of four-tape shuttle valve, plug-in overflow valve 38, Accumulator arrangements 44, check valve 45, the first lifting hydraulic cylinder 47, the second lifting hydraulic cylinder 50, the 3rd lifting hydraulic cylinder 53, the 4th lifting hydraulic cylinder 56, Pressure gauge 37.
In figure, digital code implication is as follows: P is the total pressuring oil pipe of system, and T is the total oil return pipe of system, and L is the total drain mast of system.
The specific embodiment
The energy-saving hydraulic control device of a kind of large-scale walking beam furnace for large strip rolling mill of the utility model research and development, comprises Hydraulic Station and lift cylinder hydraulic valve platform.The mode that Hydraulic Station is combined for pressure oil with pump and Accumulator arrangements realizes the object that reduces equipment investment and save power consumption, lift cylinder hydraulic valve platform be realize lift cylinder can be steadily, by technological requirement, control exactly under the prerequisite of action of lift cylinder, with energy-conservation control loop, reduce the demand to flow, thereby alleviate the burden of Hydraulic Station, realize the quantity that reduces Hydraulic Station working barrel, reduction work pump size, greatly reduces the target of power of motor, reaches energy-conservation effect.Because the oil mass of lift cylinder consumption is far longer than translation cylinder, so the hydraulic valve platform that the utility model relates to is the energy-saving design for lift cylinder hydraulic valve platform.
Hydraulic Station of the present utility model is shown in Fig. 2: comprising fuel tank, and fluid level controller, electric heater, temperature controller, working barrel group of motors, unloading electromagnetic valve, high pressure check valve, high-pressure filter, high-pressure manometer, Accumulator arrangements, system oil return oil filter, is circulated throughout filter pump group, low pressure check valve, low pressure gauge, low-pressure filter, cooler, cooling water valve.
In figure, digital code implication is as follows: P is the total pressuring oil pipe of Hydraulic Station (being hydraulic system pressure total pipeline), and T is the total oil return pipe of Hydraulic Station (being hydraulic system oil return total pipeline), the total drain mast of L hydraulic system, and W1 is cooling water supply pipe, W2 is CWR.
Wherein, fluid level controller 1, electric heater 2, temperature controller 4 are all arranged on fuel tank 3; The first unloading electromagnetic valve 9, the first high pressure check valve 13, the first high-pressure filter 17, the first high-pressure manometer 21 are all arranged on the first outlet valve block C1 of the first working barrel group of motors 5; The second unloading electromagnetic valve 10, the second high pressure check valve 14, the second high-pressure filter 18 and the second high-pressure manometer 22 are all arranged on the second outlet valve block C2 of the second working barrel group of motors 6; The 3rd unloading electromagnetic valve 11, third high press check valve 15, third high filter pressed oil device 19 and Gao tri-pressure pressure tables 23 to be all arranged on the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7; The 4th unloading electromagnetic valve 12, the 4th high pressure check valve 16, the 4th high-pressure filter 20 and the 4th high-pressure manometer 24 are all arranged on the 4th outlet valve block C4 of the 4th working barrel group of motors 8.
Suction inlet S1, S2, S3, the S4 of the first working barrel group of motors 5, the second working barrel group of motors 6, the 3rd working barrel group of motors 7, the 4th working barrel group of motors 8 are connected in parallel with steel pipe, and then connect with steel tube the S mouth of fuel tank.The force feed mouth P1 of the first working barrel group of motors 5 is connected the P1 mouth of the first outlet valve block C1 of the first working barrel group of motors 5 with steel pipe with high-pressure hose; The force feed mouth of the second working barrel group of motors 6 is connected the P2 mouth of the second outlet valve block C2 of the second working barrel group of motors 6 with steel pipe with high-pressure hose; The force feed mouth of the 3rd working barrel group of motors 7 is connected the P3 mouth of the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7 with steel pipe with high-pressure hose; The force feed mouth of the 4th working barrel group of motors 8 is connected the P4 mouth of the 4th outlet valve block C4 of the 4th working barrel group of motors 8 with steel pipe with high-pressure hose.The T4 mouth of the T3 mouth of the T2 mouth of the T1 mouth of the first outlet valve block C1 of the first working barrel group of motors 5 and the second outlet valve block C2 of the second working barrel group of motors 6 and the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7 and the 4th outlet valve block C4 of the 4th working barrel group of motors 8 is connected in parallel with steel pipe, and then connects with steel tube on total oil return pipe T of Hydraulic Station.The P8 mouth of the P7 mouth of the P6 mouth of the P5 mouth of the first outlet valve block C1 of the first working barrel group of motors 5 and the second outlet valve block C2 of the second working barrel group of motors 6 and the 3rd outlet valve block C3 of the 3rd working barrel group of motors 7 and the 4th outlet valve block C4 of the 4th working barrel group of motors 8 is connected in parallel with steel pipe, and then connects with steel tube on total pressuring oil pipe P of Hydraulic Station.The force feed interface P9 of Accumulator arrangements 25 connects with steel tube on total pressuring oil pipe P of Hydraulic Station.The oil return interface T5 of Accumulator arrangements 25 connects with steel tube on total oil return pipe T of Hydraulic Station.
Total oil return pipe T of Hydraulic Station connects with steel tube the entrance of system oil return oil filter 26, and the outlet of system oil return oil filter 26 connects with steel tube fuel tank.
The total drain mast L of system connects with steel tube fuel tank.
The suction inlet that is circulated throughout filter pump group 27 connects with steel tube first mouthful of S1 of fuel tank.The force feed mouth that is circulated throughout filter pump group 27 connects with steel tube the entrance of low pressure check valve 28, the outlet of low pressure check valve 28 connects with steel tube the entrance of Pressure gauge 29 and low-pressure filter 30, the outlet of low-pressure filter 30 connects with steel tube the entrance of cooler 32, and the outlet of cooler 32 connects with steel tube fuel tank.The cooling water inlet of cooler 32 connects with steel tube the outlet of cooling water valve 31, and the entrance of cooling water valve 31 connects with steel tube the feed pipe W1 of cooling water, and the coolant outlet of cooler 32 connects with steel tube the return pipe W2 of cooling water.
Lift cylinder hydraulic valve platform of the present utility model is shown in Fig. 3: comprise proportional flow control valve, solenoid directional control valve, plug-in inlet pressure compensator, plug-in one-way valve, the plug-in electromagnetism cone valve with shuttle valve, plug-in electromagnetism cone valve, with plug-in hydraulic control cone valve, plug-in overflow valve, Accumulator arrangements, check valve and the lifting hydraulic cylinder of shuttle valve.Wherein, proportional flow control valve 35, solenoid directional control valve 36, plug-in inlet pressure compensator 43, plug-in one-way valve 41, the first plug-in electromagnetism cone valve 42 with shuttle valve and the second plug-in electromagnetism cone valve 46, the first plug-in electromagnetism cone valve 39, the second plug-in electromagnetism cone valve 40 and plug-in overflow valve 38, Accumulator arrangements 44 and check valve 45 with shuttle valve are all arranged on a large valve piece F.The first plug-in hydraulic control cone valve 48 with shuttle valve and the 3rd plug-in electromagnetism cone valve 49 are arranged on a first little valve piece F1, the second plug-in hydraulic control cone valve 51 with shuttle valve and the 4th plug-in electromagnetism cone valve 52 are arranged on a second little valve piece F2, it is upper that the 3rd plug-in hydraulic control cone valve 54 with shuttle valve and the 5th plug-in electromagnetism cone valve 55 are arranged on a 3rd little valve piece F3, and the plug-in hydraulic control cone valve 57 of four-tape shuttle valve and the 6th plug-in electromagnetism cone valve 58 are arranged on a 4th little valve piece F4.
The entrance of the second plug-in electromagnetism cone valve 46 with shuttle valve connects with steel tube total pressuring oil pipe P of system, the outlet of the second plug-in electromagnetism cone valve 46 with shuttle valve connects the entrance of plug-in inlet pressure compensator 43 and the outlet of the first plug-in electromagnetism cone valve 42 with shuttle valve by the duct, inside of valve piece, the outlet of plug-in inlet pressure compensator 43 connects the entrance A of proportional flow control valve 35 by the duct, inside of valve piece, the outlet B of proportional flow control valve 35 connects the Y9 mouth of the entrance of plug-in one-way valve 41 and the entrance of the second plug-in hydraulic control cone valve 40 and plug-in inlet pressure compensator 43 by the duct, inside of valve piece, the outlet of plug-in one-way valve 41 connects the entrance of the first plug-in electromagnetism cone valve 42 with shuttle valve by the duct, inside of valve piece, and the entrance that is connected respectively the first plug-in hydraulic control cone valve 48 with shuttle valve by mode in parallel with steel pipe with high-pressure rubber pipe, the entrance of the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd with the entrance of plug-in hydraulic control cone valve 54 of shuttle valve and the entrance of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve.The outlet of the first plug-in hydraulic control cone valve 48 with shuttle valve connects with steel tube the piston side interface of the first hydraulic cylinder 47, the outlet of the second plug-in hydraulic control cone valve 51 with shuttle valve connects with steel tube the piston side interface of the second hydraulic cylinder 50, the outlet of the 3rd plug-in hydraulic control cone valve 54 with shuttle valve connects with steel tube the piston side interface of the 3rd hydraulic cylinder 53, and the outlet of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve connects with steel tube the piston side interface of the 4th hydraulic cylinder 56.The entrance of the first plug-in hydraulic control cone valve 48 with shuttle valve connects with steel tube the piston rod side interface of the first hydraulic cylinder 47 by the outlet of entrance the 3rd plug-in electromagnetism cone valve 49 of duct, inside connection the 3rd plug-in electromagnetism cone valve 49 of the first little valve piece F1, the entrance of the second plug-in hydraulic control cone valve 51 with shuttle valve connects the entrance of the 4th plug-in electromagnetism cone valve 52 by the duct, inside of the second little valve piece F2, the outlet of the 4th plug-in electromagnetism cone valve 52 connects with steel tube the piston rod side interface of the second hydraulic cylinder 50, the entrance of the 3rd plug-in hydraulic control cone valve 54 with shuttle valve connects the entrance of the 5th plug-in electromagnetism cone valve 55 by the duct, inside of the 3rd little valve piece F3, the outlet of the 5th plug-in electromagnetism cone valve 55 connects with steel tube the piston rod side interface of the 3rd hydraulic cylinder 53, the entrance of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve connects the entrance of the 6th plug-in electromagnetism cone valve 58 by the duct, inside of the 4th little valve piece F4, the outlet of the 6th plug-in electromagnetism cone valve 58 connects with steel tube the piston rod side interface of the 4th hydraulic cylinder 56.The piston rod side interface of the piston rod side interface of the piston rod side interface of the first hydraulic cylinder 47, the second hydraulic cylinder 50, the 3rd hydraulic cylinder 53 is connected with high-pressure rubber pipe with steel pipe respectively in parallel with the piston rod side interface of the 4th hydraulic cylinder 56, then connect with steel tube the entrance of the first plug-in electromagnetism cone valve 39, the outlet of the first plug-in electromagnetism cone valve 39 connects second outlet of plug-in electromagnetism cone valve 40 and the entrance of plug-in overflow valve 38 by the duct, inside of large valve piece F, and the outlet of plug-in overflow valve 38 connects with steel tube total oil return pipe T of system.Total pressuring oil pipe P of Pressure gauge 37 use high-pressure rubber pipe connected systems.The entrance of check valve 45 connects with steel tube total pressuring oil pipe P of system, and the outlet of check valve 45 connects with steel tube the entrance P10 of Accumulator arrangements 44, and the oil return inlet T 10 of Accumulator arrangements 44 connects with steel tube total oil return pipe T of system.The oil inlet P 2 of solenoid directional control valve 36 connects with steel tube the entrance P10 of Accumulator arrangements 44, and by the duct, inside of large valve piece F connect in parallel the second plug-in electromagnetism cone valve 46 with shuttle valve control port X12, the first control port X8 of plug-in electromagnetism cone valve 42 with shuttle valve, the control port X6 of the control port X of proportional flow control valve 35, the second plug-in electromagnetism cone valve 40, the control port X5 of the first plug-in electromagnetism cone valve 39.The oil return inlet T 2 of solenoid directional control valve 36 connects control oil return opening Y12, the control oil return opening Y8 of the first plug-in electromagnetism cone valve 42 with shuttle valve of the second plug-in electromagnetism cone valve 46 with shuttle valve, the control oil return opening Y of proportional flow control valve 35, the control oil return opening Y6 of the second plug-in electromagnetism cone valve 40, the control oil return opening Y4 of the control oil return opening Y5 of the first plug-in electromagnetism cone valve 39 and plug-in overflow valve 38, then connect with steel tube total drain mast L of system in parallel by the duct, inside of large valve piece F.
The outlet B2 of solenoid directional control valve 36 is by the duct, inside of large valve piece F, then with steel pipe, be connected in parallel the pilot control hydraulic fluid port X13 of the first plug-in hydraulic control cone valve 48 with shuttle valve with high-pressure rubber pipe, the pilot control hydraulic fluid port X16 of the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd with the pilot control hydraulic fluid port X19 of plug-in hydraulic control cone valve 54 of shuttle valve and the pilot control hydraulic fluid port X22 of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve.
The entrance P10 of Accumulator arrangements 44 with steel pipe and high-pressure rubber pipe, be connected respectively the control port X14 of the first plug-in hydraulic control cone valve 48 with shuttle valve in parallel, the control port X17 of the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd with the control port X20 of plug-in hydraulic control cone valve 54 of shuttle valve and the control port X23 of the plug-in hydraulic control cone valve 57 of four-tape shuttle valve.
The control oil return opening Y23 of the control oil return opening Y20 of the control oil return opening Y17 of the control oil return opening Y14 of the first plug-in hydraulic control cone valve 48 with shuttle valve, the second plug-in hydraulic control cone valve 51 with shuttle valve, the 3rd plug-in hydraulic control cone valve 54 with shuttle valve and the plug-in hydraulic control cone valve 57 of four-tape shuttle valve is connected with high-pressure rubber pipe in parallel with steel pipe, then connects with steel tube total drain mast L of system.
Hydraulic Station of the present utility model has adopted hydraulic pump to combine the mode of fuel feeding with accumulator, thereby has reduced by every pump size and reduced the total quantity of pump and reduced pump motor power.Accumulator is not consuming electric power, only has pump to consume electric energy, because pump motor power greatly reduces, so the utility model has not only reduced equipment investment, and is a kind of energy-saving design.The proportional flow control valve 35 of lift cylinder hydraulic valve platform can make hydraulic cylinder by technological requirement, steel billet be held up gently, be put down gently to four lifting hydraulic cylinder fuel feeding under the cooperation of other each valve, and complete promote and the acceleration of decline process, at the uniform velocity, retarded motion; Lift cylinder hydraulic valve platform of the present utility model has adopted energy-conservation control loop, in the stroke declining, makes the hydraulic oil of hydraulic cylinder piston side directly enter piston rod side at lifting hydraulic cylinder, does not need oil pump feed, and this is also energy-conservation key link.
Claims (5)
1. an energy-conserving hydraulic control device for large strip rolling mill walking beam furnace, comprises Hydraulic Station and hydraulic valve platform, it is characterized in that,
Hydraulic Station comprises fuel tank, fluid level controller, electric heater, temperature controller, the first working barrel group of motors, the second working barrel group of motors, the 3rd working barrel group of motors and the 4th working barrel group of motors, the first unloading electromagnetic valve, the second unloading electromagnetic valve, the 3rd unloading electromagnetic valve and the 4th unloading electromagnetic valve, the first high pressure check valve, the second high pressure check valve, third high is pressed check valve and the 4th high pressure check valve, the first high-pressure filter, the second high-pressure filter, third high filter pressed oil device and the 4th high-pressure filter, the first high-pressure manometer, the second high-pressure manometer, third high pressure pressure table and the 4th high-pressure manometer, Accumulator arrangements, system oil return oil filter, be circulated throughout filter pump group, low pressure check valve, low pressure gauge, low-pressure filter, cooler, cooling water valve,
Fluid level controller (1), electric heater (2), it is upper that temperature controller (4) is all arranged on fuel tank (3), the first unloading electromagnetic valve (9), the first high pressure check valve (13), the first high-pressure filter (17), the first high-pressure manometer (21) is all arranged on first outlet valve block (C1) of the first working barrel group of motors (5), the second unloading electromagnetic valve (10), the second high pressure check valve (14), the second high-pressure filter (18) and the second high-pressure manometer (22) are all arranged on second outlet valve block (C2) of the second working barrel group of motors (6), the 3rd unloading electromagnetic valve (11), third high is pressed check valve (15), third high filter pressed oil device (19) and third high pressure pressure table (23) are all arranged on the 3rd outlet valve block (C3) of the 3rd working barrel group of motors (7), the 4th unloading electromagnetic valve (12), the 4th high pressure check valve (16), the 4th high-pressure filter (20) and the 4th high-pressure manometer (24) are all arranged on the 4th outlet valve block (C4) of the 4th working barrel group of motors (8),
Total oil return pipe (T) connects with steel tube the entrance of system oil return oil filter (26), and the outlet of system oil return oil filter (26) connects with steel tube fuel tank; Total drain mast (L) connects with steel tube fuel tank,
The suction inlet that is circulated throughout filter pump group (27) connects with steel tube first mouthful of fuel tank (S1), the force feed mouth that is circulated throughout filter pump group (27) connects with steel tube the entrance of low pressure check valve (28), the outlet of low pressure check valve (28) connects with steel tube the entrance of low pressure gauge (29) and low-pressure filter (30), the outlet of low-pressure filter (30) connects with steel tube the entrance of cooler (32), the outlet of cooler (32) connects with steel tube fuel tank, the cooling water inlet of cooler (32) connects with steel tube the outlet of cooling water valve (31), the entrance of cooling water valve (31) connects with steel tube the feed pipe (W1) of cooling water, the coolant outlet of cooler (32) connects with steel tube the return pipe (W2) of cooling water,
Hydraulic valve platform comprises proportional flow control valve, solenoid directional control valve, plug-in inlet pressure compensator, plug-in one-way valve, the first plug-in electromagnetism cone valve with shuttle valve, the second plug-in electromagnetism cone valve with shuttle valve, the first plug-in electromagnetism cone valve, the second plug-in electromagnetism cone valve, the 3rd plug-in electromagnetism cone valve, the 4th plug-in electromagnetism cone valve, the 5th plug-in electromagnetism cone valve and the 6th plug-in electromagnetism cone valve, the first plug-in hydraulic control cone valve with shuttle valve, the second plug-in hydraulic control cone valve with shuttle valve, the 3rd with the plug-in hydraulic control cone valve of shuttle valve and the plug-in hydraulic control cone valve of four-tape shuttle valve, plug-in overflow valve, Accumulator arrangements, check valve, lifting hydraulic cylinder, wherein, proportional flow control valve (35), solenoid directional control valve (36), plug-in inlet pressure compensator (43), plug-in one-way valve (41), the first plug-in electromagnetism cone valve (42) with shuttle valve, the second plug-in electromagnetism cone valve (46) with shuttle valve, the first plug-in electromagnetism cone valve (39), the second plug-in electromagnetism cone valve (40) and plug-in overflow valve (38), Accumulator arrangements (44), check valve (45) is all arranged on large valve piece (F), the first plug-in hydraulic control cone valve (48) with shuttle valve and the 3rd plug-in electromagnetism cone valve (49) are arranged on the first little valve piece (F1), the second plug-in hydraulic control cone valve (51) with shuttle valve and the 4th plug-in electromagnetism cone valve (52) are arranged on the second little valve piece (F2), it is upper that the 3rd plug-in hydraulic control cone valve (54) with shuttle valve and the 5th plug-in electromagnetism cone valve (55) are arranged on the 3rd little valve piece (F3), and the plug-in hydraulic control cone valve (57) of four-tape shuttle valve and the 6th plug-in electromagnetism cone valve (58) are arranged on the 4th little valve piece (F4).
2. energy-conserving hydraulic control device according to claim 1, it is characterized in that, the entrance of the second plug-in electromagnetism cone valve (46) with shuttle valve connects with steel tube total pressuring oil pipe (P), the outlet of the plug-in electromagnetism cone valve (42) of the outlet of the second plug-in electromagnetism cone valve (46) with the shuttle valve entrance and first by the internal gutter connection plug-in inlet pressure compensator (43) of large valve piece (F) with shuttle valve, the outlet of plug-in inlet pressure compensator (43) is connected the entrance (A) of proportional flow control valve (35) by the internal gutter of large valve piece (F), the outlet (B) of proportional flow control valve (35) is connected entrance and the entrance of the second plug-in electromagnetism cone valve (40) and (Y9) of plug-in inlet pressure compensator (43) mouthful of plug-in one-way valve (41) by the internal gutter of large valve piece (F), the entrance of the plug-in electromagnetism cone valve (42) of the outlet of plug-in one-way valve (41) the internal gutter connection first by large valve piece (F) with shuttle valve, and be connected respectively the entrance of the first plug-in hydraulic control cone valve (48) with shuttle valve with high-pressure rubber pipe with steel pipe by mode in parallel, the entrance of the second plug-in hydraulic control cone valve (51) with shuttle valve, the entrance of the plug-in hydraulic control cone valve (57) of the entrance and the 4th of the 3rd plug-in hydraulic control cone valve (54) with shuttle valve with shuttle valve, the outlet of the first plug-in hydraulic control cone valve (48) with shuttle valve connects with steel tube the piston side interface of the first hydraulic cylinder (47), the outlet of the second plug-in hydraulic control cone valve (51) with shuttle valve connects with steel tube the piston side interface of the second hydraulic cylinder (50), the outlet of the 3rd plug-in hydraulic control cone valve (54) with shuttle valve connects with steel tube the piston side interface of the 3rd hydraulic cylinder (53), the outlet of the 4th plug-in hydraulic control cone valve (57) with shuttle valve connects with steel tube the piston side interface of the 4th hydraulic cylinder (56), the entrance of the first plug-in hydraulic control cone valve (48) with shuttle valve is by the entrance of internal gutter connection the 3rd plug-in electromagnetism cone valve (49) of the first little valve piece (F1), the outlet of the 3rd plug-in electromagnetism cone valve (49) connects with steel tube the piston rod side interface of the first hydraulic cylinder (47), the entrance of the second plug-in hydraulic control cone valve (51) with shuttle valve is by the entrance of internal gutter connection the 4th plug-in electromagnetism cone valve (52) of the second little valve piece (F2), the outlet of the 4th plug-in electromagnetism cone valve (52) connects with steel tube the piston rod side interface of the second hydraulic cylinder (50), the entrance of the 3rd plug-in hydraulic control cone valve (54) with shuttle valve is by the entrance of internal gutter connection the 5th plug-in electromagnetism cone valve (55) of the 3rd little valve piece (F3), the outlet of the 5th plug-in electromagnetism cone valve (55) connects with steel tube the piston rod side interface of the 3rd hydraulic cylinder (53), the entrance of the 4th plug-in hydraulic control cone valve (57) with shuttle valve is by the entrance of internal gutter connection the 6th plug-in electromagnetism cone valve (58) of the 4th little valve piece (F4), the outlet of the 6th plug-in electromagnetism cone valve (58) connects with steel tube the piston rod side interface of the 4th hydraulic cylinder (56), the piston rod side interface of the first hydraulic cylinder (47), the piston rod side interface of the second hydraulic cylinder (50),The piston rod side interface of the 3rd hydraulic cylinder (53), the piston rod side interface of the 4th hydraulic cylinder (56) is connected with high-pressure rubber pipe in parallel with steel pipe respectively, then the entrance of the first plug-in electromagnetism cone valve (39) is connected with steel tube, the outlet of the first plug-in electromagnetism cone valve (39) is connected the outlet of the second plug-in electromagnetism cone valve (40) and the entrance of plug-in overflow valve (38) by the internal gutter of large valve piece (F), the outlet of plug-in overflow valve (38) connects with steel tube total oil return pipe (T), Pressure gauge (37) connects total pressuring oil pipe (P) with high-pressure rubber pipe, the entrance of check valve (45) connects with steel tube total pressuring oil pipe (P), the outlet of check valve (45) connects with steel tube the entrance (P10) of Accumulator arrangements (44), the oil return opening (T10) of Accumulator arrangements (44) connects with steel tube total oil return pipe (T), the oil-in (P2) of solenoid directional control valve (36) connects with steel tube the entrance (P10) of Accumulator arrangements (44), and the internal gutter by large valve piece (F) connects the control port (X12) of the second plug-in electromagnetism cone valve (46) with shuttle valve in parallel, the control port (X8) of the first plug-in electromagnetism cone valve (42) with shuttle valve, the control port (X) of proportional flow control valve (35), the control port (X6) of the second plug-in electromagnetism cone valve (40), the control port (X5) of the first plug-in electromagnetism cone valve (39), the oil return opening (T2) of solenoid directional control valve (36) internal gutter by large valve piece (F) connects the control oil return opening (Y12) of the second plug-in electromagnetism cone valve (46) with shuttle valve in parallel, the control oil return opening (Y8) of the first plug-in electromagnetism cone valve (42) with shuttle valve, the control oil return opening (Y) of proportional flow control valve 35, the control oil return opening (Y6) of the second plug-in electromagnetism cone valve (40), the control oil return opening (Y5) of the first plug-in electromagnetism cone valve (39) and the control oil return opening (Y4) of plug-in overflow valve (38), then total drain mast (L) is connected with steel tube.
3. energy-conserving hydraulic control device according to claim 1, it is characterized in that, the outlet (B2) of solenoid directional control valve (36) is by the duct, inside of large valve piece (F), then with steel pipe, be connected in parallel the pilot control hydraulic fluid port (X13) of the first plug-in hydraulic control cone valve (48) with shuttle valve with high-pressure rubber pipe, the pilot control hydraulic fluid port (X16) of the second plug-in hydraulic control cone valve (51) with shuttle valve, the pilot control hydraulic fluid port (X22) of the pilot control hydraulic fluid port (X19) of the 3rd plug-in hydraulic control cone valve (54) with shuttle valve and the plug-in hydraulic control cone valve (57) of four-tape shuttle valve.
4. energy-conserving hydraulic control device according to claim 1, it is characterized in that, the entrance (P10) of Accumulator arrangements (44) is connected respectively the control port (X14) of the first plug-in hydraulic control cone valve (48) with shuttle valve, the control port (X23) of the control port (X17) of the second plug-in hydraulic control cone valve (51) with shuttle valve, the control port (X20) of the 3rd plug-in hydraulic control cone valve (54) with shuttle valve and the plug-in hydraulic control cone valve (57) of four-tape shuttle valve with steel pipe and high-pressure rubber pipe in parallel.
5. energy-conserving hydraulic control device according to claim 1, it is characterized in that, the control oil return opening (Y23) of the control oil return opening (Y20) of the control oil return opening (Y17) of the control oil return opening (Y14) of the first plug-in hydraulic control cone valve (48) with shuttle valve, the second plug-in hydraulic control cone valve (51) with shuttle valve, the 3rd plug-in hydraulic control cone valve (54) with shuttle valve and the plug-in hydraulic control cone valve (57) of four-tape shuttle valve is connected with high-pressure rubber pipe in parallel with steel pipe, then connects with steel tube total drain mast (L).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320020468.8U CN203908295U (en) | 2013-01-13 | 2013-01-13 | Energy-saving hydraulic control apparatus for stepping heating furnace of large strip rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320020468.8U CN203908295U (en) | 2013-01-13 | 2013-01-13 | Energy-saving hydraulic control apparatus for stepping heating furnace of large strip rolling machine |
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| CN203908295U true CN203908295U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320020468.8U Expired - Lifetime CN203908295U (en) | 2013-01-13 | 2013-01-13 | Energy-saving hydraulic control apparatus for stepping heating furnace of large strip rolling machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041731A (en) * | 2015-08-07 | 2015-11-11 | 中国中元国际工程有限公司 | Hydraulic station for steelshop steel making furnaces and arrangement method of hydraulic station |
| CN105604994A (en) * | 2016-03-02 | 2016-05-25 | 湖州优创科技有限公司 | Hydraulic station for small mills |
| CN105889160A (en) * | 2016-06-08 | 2016-08-24 | 湖北力帝机床股份有限公司 | Rapid hydraulic system of scrap steel shear |
| CN114294275A (en) * | 2021-12-31 | 2022-04-08 | 中冶赛迪技术研究中心有限公司 | Hydraulic control system of walking beam furnace |
| CN116907223A (en) * | 2023-06-19 | 2023-10-20 | 广州白云液压机械厂有限公司 | Hydraulic potential energy recycling and energy saving system of stepping heating furnace |
-
2013
- 2013-01-13 CN CN201320020468.8U patent/CN203908295U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041731A (en) * | 2015-08-07 | 2015-11-11 | 中国中元国际工程有限公司 | Hydraulic station for steelshop steel making furnaces and arrangement method of hydraulic station |
| CN105041731B (en) * | 2015-08-07 | 2017-03-08 | 中国中元国际工程有限公司 | Steelshop converter Hydraulic Station and its method for arranging |
| CN105604994A (en) * | 2016-03-02 | 2016-05-25 | 湖州优创科技有限公司 | Hydraulic station for small mills |
| CN105889160A (en) * | 2016-06-08 | 2016-08-24 | 湖北力帝机床股份有限公司 | Rapid hydraulic system of scrap steel shear |
| CN105889160B (en) * | 2016-06-08 | 2017-12-05 | 湖北力帝机床股份有限公司 | Steel scrap cuts quick hydraulic system |
| CN114294275A (en) * | 2021-12-31 | 2022-04-08 | 中冶赛迪技术研究中心有限公司 | Hydraulic control system of walking beam furnace |
| CN116907223A (en) * | 2023-06-19 | 2023-10-20 | 广州白云液压机械厂有限公司 | Hydraulic potential energy recycling and energy saving system of stepping heating furnace |
| CN116907223B (en) * | 2023-06-19 | 2023-12-08 | 广州白云液压机械厂有限公司 | Hydraulic potential energy recycling and energy saving system of stepping heating furnace |
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Granted publication date: 20141029 |