CN102094101B - Hydraulic transmission type metal mixer - Google Patents
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- CN102094101B CN102094101B CN201110057463A CN201110057463A CN102094101B CN 102094101 B CN102094101 B CN 102094101B CN 201110057463 A CN201110057463 A CN 201110057463A CN 201110057463 A CN201110057463 A CN 201110057463A CN 102094101 B CN102094101 B CN 102094101B
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Abstract
The invention provides a hydraulic transmission type metal mixer which comprises a main body, a suspension support device and a tilting device, wherein the main body is a rotator, a rotating shaft of the main body is horizontally arranged, and the top of the main body is provided with a charging hole; one side of the main body is provided with a tap hole, and the other side is connected with the tilting device; the suspension support device is used for suspending the main body, so that the main body can tilt around the rotating shaft under the driving action of the tilting device; the center of gravity of the main body deviates from the rotating shaft, and the rotation of the main body is eccentric rotation; the tilting device comprises a power unit and a hydraulic transmission system; and the piston output end of the hydraulic transmission system is fixedly connected with the bottom of the side face of the main body, and makes a rectilinear motion. By fundamentally improving the traditional transmission system of the metal mixer, the invention has the advantages of simplified structure, simple technique, lighter weight, investment saving and high safety, shortens the processing cycle, reduces the spare parts, is convenient for maintenance and simple for operation, lowers the energy consumption and prolongs the service life of the equipment.
Description
Technical field
The present invention relates to field of metallurgy, specifically is a kind of metallurgical equipment---the hydraulic driven hot metal mixer.
Background technology
Hot metal mixer is the important main equipment of iron and steel enterprise.The molten iron of blast furnace production at first leaves in the hot metal mixer, topples over out from hot metal mixer again, and the supply converter steelmaking is used.Hot metal mixer is stored molten iron, and evenly hot metal composition and temperature are coordinated the production of blast furnace and converter, play the effect of stably manufactured, are used widely by iron and steel enterprise.Hot metal mixer be an accumbency at the right cylinder that has on the arc guide rail base, hot-metal charging notch is established on top, the front portion sets out embolum, rear lower is established the support that fascinates, the support that fascinates vertically connects tilting system.Whole shape resembles a teapot.
The transmission system of hot metal mixer is the power system that converter steelmaking auxiliary facility hot metal mixer is carried out technological action.Hot metal mixer is blended into, pours out molten iron, pour out and reply former attitude behind the molten iron, build refractory materials or the like technological action by laying bricks or stones, all accomplished by transmission system.When the transmission system execution architecture was upwards done the lifting action, it was eccentric rotation that hot metal mixer can lean forward around the rotation centerline rotation that is parallel to horizontal axis, and then molten iron flows out from going out embolum, as the teapot pouring.Tilting system is done downwards when reclaiming action, and hot metal mixer then rotates hypsokinesis, stops molten iron.Because the eccentric rotation centerline of hot metal mixer is in the front upper place of hot metal mixer geometric center lines; Therefore, when the eccentric rotation of hot metal mixer do was leaned forward, the hot metal mixer rear portion overweighted the front portion; Produce a potential energy; Just meet when having a power failure when hot metal mixer goes out molten iron, stopper is opened in manual work, and this potential energy can make hot metal mixer automatically reply former attitude.
The transmission system of the hot metal mixer of prior art is continued to use the rack-and-pinion transmission of the FSU always.Like Fig. 1, shown in Figure 2, be mechanical transmission (rack-and-pinion transmission) hot metal mixer, hot metal mixer body of heater 1 rear lower is equipped with the bearing 9 that fascinates; The bearing 9 that fascinates vertically connects a tooth bar 19, and tooth bar 19 forms gear pair with gear, and gear pair has wheel casing 23 outward; Wheel casing 23 has the copper/copper alloy bearing that supplies the gear pair translational motion to rotatablely move; There is chock 25 the gear both sides, and chock 25 is installed on the chock base 24, and chock base 24 is anchored on the concrete basis.Gear is connected with step-down gear 20 through shaft coupling 26 and transmission shaft 27.Phonomoter 21 is installed on the motor bedplate 29; Direct motor drive step-down gear 20, step-down gear 20 are installed on the step-down gear base 28, rotate through shaft coupling 26 and transmission shaft 27 driven gears; Gear driven tooth bar 19 is made translational motion up and down; Tooth bar 19 upper ends are connected with bearing pin on the bearing 9 that fascinates of hot metal mixer furnace shell, and upwards lifting or shrink downwards of tooth bar 19 makes hot metal mixer 1 rotate forward or backward around rotation center; When tooth bar 19 upwards liftings, body of heater 1 rotates forward, goes out 3 of embolums and moves downward, and molten iron flows to iron ladle confession steel-making use from going out embolum 3; The angle that body of heater 1 rotates is between-5 ° to 47 °.Mechanically operated pair of friction components all dispose lubrication fittings.After hot metal supply was accomplished, tooth bar 19 shrank downwards, and body of heater 1 rotates backward, goes out 3 of embolums and moves upward, and molten iron stops to pour out, and waited for the next work period.
The hot metal mixer of this rack-and-pinion transmission adopts the transmission system of pure machinery, and its shortcoming is: needs are equipped with multiple spot grease lubricating system, complex structure, the assembling installation is loaded down with trivial details, weight is big, difficulty of processing is big, the process-cycle is long, spare parts is many, manufacturing cost is high, maintenance cost is big, investment is big, energy consumption is higher relatively, work-ing life is shorter relatively.
Summary of the invention
The object of the present invention is to provide the method for design of a kind of hydraulic driven hot metal mixer and concrete structure thereof.
The technical scheme that the present invention adopted is:
A kind of hydraulic driven hot metal mixer; Comprise body of heater, hanger bearing device and tiling arrangement, body of heater is a rotator, its turning axle horizontal arrangement; The body of heater top is provided with hot-metal charging notch; One side of body of heater is provided with iron notch, opposite side connects tiling arrangement, and hanger bearing device lifting body of heater fascinates it around turning axle under the driving of tiling arrangement; The center of gravity and the turning axle of said body of heater depart from, and fascinating of body of heater is that off-centre is fascinated; Said tiling arrangement comprises power-equipment and hydraulic power actuating system, and the piston output terminal of hydraulic power actuating system is fixedly connected the lateral bottom of body of heater, the translational motion that this piston output terminal is done.
Said tiling arrangement comprises motor, oil pump, fuel tank, straight line hydro-cylinder and the piston rod that connects successively; Piston rod is arranged in the straight line hydro-cylinder; The hinged body of heater of one end, the other end have piston; Piston is isolated into upper and lower oil pocket with hydro-cylinder; Straight line hydro-cylinder cylinder mouth is provided with the spacing end cap of piston rod, and the electric motor driving oil pump gets into the upper and lower oil pocket of straight line hydro-cylinder respectively with the hydraulicefficiency oil in the fuel tank, and the pressure difference piston rod through the piston two ends is along the translational motion of doing in the straight line hydro-cylinder.
Said hydro-cylinder inwall adopts the working method of secondary cold-drawn.
Said piston rod is a hollow stem.
Said piston rod surface adopts roll extrusion and/or chromed hardened surface treatment method.
Be provided with UNICOM's oil pipe between the upper and lower oil pocket of said hydro-cylinder, on UNICOM's oil pipe normal closed gate be installed.
The stroke of said piston rod equals the chord length of the maximum turning angle of body of heater.
The size of said hydro-cylinder inner diameter d obtains through following formula:
In the formula, d is the hydro-cylinder internal diameter, and unit is mm,
Q is a thrust hydraulic cylinder, and unit is KN,
P is the hydraulicefficiency oil pressure, and unit is MPa,
E is the pressure medium constant under the different hydraulicefficiency oil pressures;
Said thrust hydraulic cylinder Q confirms that through the lifting force M that metal mixer tilting needs its size obtains through following formula:
In the formula, G is the hot metal mixer deadweight, and unit is Kg,
S is the distance of hot metal mixer center of gravity center and rotation center, and unit is mm,
R is the moment of fascinating of hot metal mixer, and unit is Nm.
The beneficial effect that the present invention produced is:
Hydraulic driven hot metal mixer of the present invention is compared with the hot metal mixer of machine driven system, has the following advantages:
1. spatial design is flexible.The transmission system of hydraulic driven hot metal mixer can arbitrarily be arranged, even can be arranged in beyond the main shop; And machine driven system must be arranged in the hot metal mixer below.
2. Equipment Foundations are simple, basic stress stable.On the hydraulic power actuating system of hydraulic driven hot metal mixer, only need a hydro-cylinder hinged support, just can be securely on the concrete basis; And the wheel casing base of machine driven system, step-down gear base, motor bedplate all must be arranged on the concrete basis.The hydro-cylinder of hydraulic power actuating system has only vertical to the concrete basis, stability under loading in addition; And machine driven system not only has vertical, the moment of fascinating in addition, stressed complicacy, instability.
3. need not lubricate, use manpower and material resources sparingly.The hydrostatic transmission friction pair of hydraulic driven hot metal mixer need not lubricate; And machine driven system need dispose the multiple spot dry oil lubrication.
4. stepless change, adjusting automatically.Permanent power oil pump has been selected in the hydrostatic transmission of hydraulic driven hot metal mixer for use, and lifting force is regulated automatically, meets bigger resistance in the time of can overcoming metal mixer tilting by chance; In machine driven system, can't realize at all.
Longer service life, mechanical loss little, do not need frequent change.Because present domestic hydraulic technique is perfect day by day, the life-span of hydraulicefficiency system surpasses machine driven system.Simultaneously, hydraulic driven hot metal mixer of the present invention is at hydraulicdriven moving parts---the hydraulic cylinder rod surface, be provided with chromium coating, and wear resistance is higher than the wearing and tearing of mechanical transmission middle gear tooth bar; Rack-and-pinion is used just to be needed to change in three to five years, greatly the wasting manpower and material resources.
6. cost is cheap relatively, and cost performance is high.The major spare part of the hydraulic power actuating system of hydraulic driven hot metal mixer is each sealing member, filter member, flexible pipe, reversing valve, valve, hydraulic pressure wet goods; And the major spare part of machine driven system is brasses, copper sheathing, gear, tooth bar, shaft coupling, stopper etc.The latter's value is five to ten times that the former is worth approximately, the weight of same level hot metal mixer transmission system, and cost, price is compared, and hydrostatic transmission is mechanically operated 3/5ths, has very strong competitive power.
7. big, the energy-saving and emission-reduction of transmission power.The hydrostatic transmission power of electric motor of hydraulic driven hot metal mixer is lower than mechanical transmission, is example with the 900t hot metal mixer: hydrostatic transmission oil pump motor power is 45 kilowatts, and mechanical transmission then needs 55 kilowatts, energy-conservation 1 18.
8, easy and simple to handle, need not training, safety performance is strong.Hydraulic driven hot metal mixer and mechanical transmission-type hot metal mixer are as broad as long in operation; Need not other training; Comprise other the electrical interlocks, instrument demonstration, safety features, electrical control cubicles, operator's console etc. at position of hot metal mixer; Keep original traditional operation custom fully, this is to operator's safe operation, and it is very beneficial to accept novel appts.
Hydraulic driven hot metal mixer of the present invention is the basic innovation to hot metal mixer tradition transmission system, is that the advance of current mechanical industry metallurgical equipment is created.The drive system structure of hot metal mixer is simplified, technology is simple, weight saving, has shortened the process-cycle, reduces spare part, has been convenient to safeguard, practice thrift invest, cut down the consumption of energy, easy and simple to handle, safety performance strong, the work-ing life of prolongation equipment.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of the mechanical transmission-type hot metal mixer of prior art;
Fig. 2 is the side-looking structural representation of the mechanical transmission-type hot metal mixer of prior art;
Fig. 3 is the main TV structure synoptic diagram of hydraulic driven hot metal mixer of the present invention;
Fig. 4 is the side-looking structural representation of hydraulic driven hot metal mixer of the present invention;
Fig. 5 is the structural representation of the hydro-cylinder of hydraulic driven hot metal mixer of the present invention.
Label is represented among the figure: the 1-body of heater, and the 2-end cap, 3-goes out embolum, 4-hot-metal charging notch, 5-coal gas air line, 6-gas pipeline, 7-bell; 8-fuel tank, the 9-bearing that fascinates, 10-piston rod, 11-hydro-cylinder, 12-oil pipe, 13-reversing valve; The 14-oil pump, 15-manual ball valve, 16-UNICOM oil pipe, 17-vacuum breaker, 18-rocker bar bearing, 19-tooth bar; The 20-step-down gear, 21-phonomoter, 22-stopper, 23-wheel casing, 24-chock base, 25-chock; The 26-shaft coupling, 27-transmission shaft, 28-step-down gear base, 29-motor bedplate, A-lower oil cavitie, B-upper oil cavitie.
Embodiment
Like Fig. 3～shown in Figure 4: the present invention is a kind of hydraulic driven hot metal mixer; Comprise body of heater 1, hanger bearing device and tiling arrangement; Body of heater 1 is the cylindrical shell that two ends have end cap 2, and this cylindrical shell is a rotator, and its turning axle is parallel with the central axis of this cylindrical shell, horizontal arrangement.Body of heater 1 periphery is provided with hot-metal charging notch 4 and goes out embolum 3 (iron notch), and hot-metal charging notch 4 is arranged on the top of body of heater 1.In stove, during hot metal charging, will not close bell 7 in order to be incubated and to save the energy, the coal gas that hot-metal insulating is required is carried through coal gas air line 5, and gas pipeline 6 is carried coal gas, and air is used for combustion-supporting.Go out that embolum 3 is arranged on the front side of body of heater 1, correspondingly the rear side of body of heater 1 connects tiling arrangement.The idler pulley supporting device supports body of heater 1, make body of heater 1 can be under the driving of tiling arrangement, back and forth fascinate around turning axle.The center of gravity and the turning axle of body of heater 1 depart from, and make that fascinating of body of heater 1 is that off-centre is fascinated.
Tiling arrangement comprises power-equipment and hydraulic power actuating system, and hydraulic power unit is a propulsion source, and hydro-cylinder 11 is a topworks, comprises the motor, oil pump 14, fuel tank 8, straight line hydro-cylinder 11 and the piston rod 10 that connect successively.The heart of hydraulic power unit is an oil pump 14, and phonomoter 21 provides power for oil pump 14, and the gear of oil pump 14 is reversing valves 13, and fuel tank 8 is deposited hydraulicefficiency oil, be provided with in the fuel tank 8 to hydraulicefficiency oil filter, heating, cooling or the like facility.The oil pipe 12 of delivery hydraulic pressure oil adopts weldless steel tube and high pressure hose, is furnished with various valves on the oil pipe 12.Hydro-cylinder 11 bottoms use bearing pin to be connected on the rocker bar bearing 18, and rocker bar bearing 18 is anchored on the concrete basis.The installation site of columniform straight line hydro-cylinder 11, the position of the mechanical transmission hot metal mixer middle rack 19 of fundamental sum background technology overlaps, to obtain best effect.That is to say that hydrostatic transmission hot metal mixer of the present invention has fully phased out mechanical driving part, use hydrostatic transmission instead and substitute, and all the other structures of hot metal mixer reach the not change of requirement to technological action.
As shown in Figure 5: piston rod 10 is arranged in the straight line hydro-cylinder 11; Piston rod 10 tops use that bearing pin is hinged on the bearing 9 that fascinates of hot metal mixer body of heater 1, the bottom is provided with and the piston of hydro-cylinder 11 inwall sliding contacts, and hydro-cylinder 11 cylinder mouths are provided with the spacing end cap of piston rod 10.Piston is isolated into lower oil cavitie A and upper oil cavitie B with hydro-cylinder 11, and phonomoter 21 drives oil pump 14 hydraulicefficiency oil in the fuel tank 8 is transmitted through oil pipe 12, sends into the lower oil cavitie A and the upper oil cavitie B of hydro-cylinder 11 respectively.So, because the hydraulic pressure in lower oil cavitie A and the upper oil cavitie B has nothing in common with each other, make the piston two ends have pressure difference, this pressure difference driven plunger is slided along hydro-cylinder 11 casing walls, thereby piston rod 10 is made upper and lower translational motion.Simultaneously, because the upwards lifting of piston rod 10 or shrink, make hot metal mixer 1 before axial rotary or rotate backward downwards.The power of piston rod 10 upper and lower actions is derived from motor pump 14, and oil pump 14 pumps the pressure of 8MPa to 10MPa hydraulicefficiency oil, promotes the piston motion in the hydro-cylinder 11, and piston drives piston rod 10 motions.Permanent power oil pump 14 has been selected in hydrostatic transmission for use; The characteristics of permanent power oil pump 14 are, under the constant prerequisite of dependable flow, pressure is synchronization regulation automatically with the variation of the resistance of motion; Can overcome and meet partial change in resistance by chance, guarantee the speed of fascinating that hot metal mixer is stable again.
When piston rod 10 upwards liftings, hot metal mixer 1 rotates forward, goes out 3 of embolums and moves downward, and molten iron flows to iron ladle confession steel-making use from going out embolum 3.After hot metal supply was accomplished, piston rod 10 shrank downwards, and hot metal mixer 1 rotates backward, goes out 3 of embolums and moves upward, and molten iron stops to pour out, and waited for the next work period.The angle that hydro-cylinder 11 hot metal mixer 1 rotate is between-5 ° to 52 °, and the stroke of piston rod 10 equals the chord length of the maximum turning angle of hot metal mixer.
Hot metal mixer has a power failure if just meet when hot metal ladle is toppled over molten iron, and molten iron continues to topple over, and is danger close, so hot metal mixer has all been equipped manual reseting device.The present invention axially is provided with UNICOM's oil pipe 16 in the outside of hydro-cylinder 11, and UNICOM's oil pipe 16 is provided with a normal closed gate (manual ball valve 15) and vacuum breaker 17 with the lower oil cavitie A and the upper oil cavitie B UNICOM of hydro-cylinder 11 on UNICOM's oil pipe 16.When going out molten iron, hot metal mixer just meets when having a power failure; Manual ball valve 15 is opened in manual work; Make the pressure equilibrium in lower oil cavitie A and the upper oil cavitie B, hot metal mixer forces the hydraulicefficiency oil of hydro-cylinder 11 lower oil cavitie A because of the weight potential energy that the off-centre rotation produces; Add to the upper oil cavitie B of hydro-cylinder 11 through UNICOM's oil pipe 16, the hydraulicefficiency oil that lower oil cavitie A is unnecessary enters fuel tank 8.Piston rod 10 resistance that almost do not descend of this moment, hot metal mixer is automatically reset to be swift in response, and this is that mechanical transmission is inaccessible, because mechanical transmission is when automatically reseting, the weight potential energy of hot metal mixer will drive step-down gear and do the speedup motion, so delay of response.
The making emphasis of hydraulic power actuating system is a hydro-cylinder 11, and the linearity of the inwall of hydro-cylinder 11 and piston rod 10, roughness, abrasion resistance, bending strength require very high.We have taked various measures, have adopted the secondary cold-drawn to handle like the inwall to hydro-cylinder 11, have improved the surfaceness and the abrasion resistance of hydro-cylinder 11.Piston rod 10 adopts hollow stems, and piston rod 10 is drilled with through hole along axis, and its inside and outside surface adopted roll extrusion and hard chrome plating processing, improves the linearity of piston rod 10, wear-resisting and bending strength ability greatly.So, make each parts of hydro-cylinder all have very high intensity, the normal use down, its life-span can reach six to eight years.
According to the size of melten iron in hot-metal mixer capacity, roughly be divided into 150t, 300t, 600t, 900t, the several grades of 1300t, iron and steel enterprise selects to be equipped with as required.Structure formation, the type of drive of the hot metal mixer of different size, size are basic identical, and still, hydro-cylinder 11 each size are key for design, and it is design basis that hydro-cylinder 11 needs the strength of output.The hot metal mixer of different stage, physical dimension, weight differential are very big, and required lifting force is also different; Therefore; The hot metal mixer of different stage should be equipped with the hydraulic power actuating system of different size, is embodied in the aspect such as diameter and stroke of internal diameter, the piston rod 10 of hydro-cylinder 11.
The design of hydraulic power actuating system guarantees that at first hydraulicdriven lifting force is not less than mechanically operated lifting force.With the 900t hot metal mixer is example, and mechanically operated lifting force is 1730KN.And when adopting hydraulic transmission mode, internal diameter 500mm, the hydro-cylinder 11 of pressure 8.8MPa also can reach same lifting force.In order to guarantee that hot metal mixer reaches 52 ° turning angle, the travel settings of hydro-cylinder 11 is 4800mm.In order to guarantee that hot metal mixer reaches the speed of fascinating of 38mm/S, the flow of hydro-pump is not less than 210L/min.In view of this hot metal mixer hydraulic power actuating system compares the hydraulicefficiency system on the other products, be a buster, but more corresponding machine driven system is light and handy many.The hydraulic power actuating system gross weight 20t of 900t hot metal mixer, machine driven system gross weight 41t.
Hot metal mixer with molten iron capacity 900t is an example: the length overall of hydro-cylinder 11 is 5800mm, and stroke is 4300mm, and internal diameter is 500mm, and wall thickness is 45mm; The diameter of piston rod 10 is 300mm, and the internal diameter of axially extending bore is 50mm.The model of oil pump 14 is A7V160CVIRPF, and WP is 8MPa, and flow is 290L/s.The power of phonomoter 21 is 45KW, and the model of reversing valve 13 is CBY4200C-AIFRY, and the capacity of fuel tank 8 is 5m3, and the bearing capacity of oil pipe 12 is 40MPa.More than design makes that the maximum thrust of hydro-cylinder 11 outputs is 1960KN, and fltting speed is 35mm/s.Simultaneously, the about 20000Kg of this whole series hydraulic power actuating system gross weight, and the about 41000Kg of same level machine driven system gross weight, the weight of machine driven system more in the past alleviates greatly.
The stroke L of piston rod 10 equals the chord length of body of heater 1 maximum turning angle
, calculates by following formula:
，（1）
In the formula, R is the moment of fascinating (radius fascinates) of hot metal mixer, and promptly the junction of piston rod 10 and body of heater 1 is to the distance of hot metal mixer rotation center, and unit is Nm.
The diameter dimension of hydro-cylinder 11 calculates definite by the lifting force that metal mixer tilting needs.After the pressure medium pressure was confirmed, the size of hydro-cylinder 11 diameter dimensions had determined the size of hydro-cylinder 11 lifting forces.Hydro-cylinder 11 internal diameter sizes, we calculate by following formula:
In the formula, d is hydro-cylinder 11 internal diameters, and unit is mm,
Q is hydro-cylinder 11 thrusts, and unit is KN,
P is the hydraulicefficiency oil pressure, and unit is MPa, in the following embodiment, and P=10MPa;
E is the pressure medium constant under the different hydraulicefficiency oil pressures, in the following embodiment, and the pressure medium constant e=20 under the hydraulicefficiency oil pressure of 10MPa.
Wherein, hydro-cylinder 11 thrust Q confirm that through the lifting force M that metal mixer tilting needs according to lever principle, its size can obtain through following formula:
In the formula, G is the hot metal mixer deadweight, and unit is Kg,
S is the distance of hot metal mixer center of gravity center and rotation center, and unit is mm,
R is the moment of fascinating (radius fascinates) of hot metal mixer, and unit is Nm.
But, during metal mixer tilting, because the eccentric potential energy that produces is a variable.Hot metal mixer is (molten iron is poured out fully in the stove at this moment) when limit inclination angle, the eccentric maximum of hot metal mixer, and potential energy is also maximum.Except the hot metal mixer self gravitation, also have very complicated compound motion, the lifting force M that metal mixer tilting needs calculates relative complex, be hot metal mixer when doing eccentric rotation and leaning forward the maximal potential ability add the summation of each frictional force.Therefore, during practical implementation, the lifting force M that metal mixer tilting needs generally adopts rule of thumb data, and these rule of thumb data directly convert according to power of electric motor in the mechanical transmission and come.As shown in the table:
Table one:
Lifting force M in the table is the maximum lift that metal mixer tilting needs, and comprises the various resistances that need overcome severe environment.
Embodiment one
With the 900t hot metal mixer is example; The moment radius of hot metal mixer is 4.9m; Confirm its
through the physical dimension of 900t hot metal mixer, calculate the stroke of hydro-cylinder 11:
Over design is got the stroke L=4300mm of hydro-cylinder 11.
Embodiment two
With the 900t hot metal mixer is example, obtains the lifting force M=1700KN that the 900t metal mixer tilting needs through table one, through formula (2), asks hydro-cylinder 11 internal diameters:
Over design is got hydro-cylinder 11 inner diameter d=500mm.
Embodiment three
With the 600t hot metal mixer is example, obtains the lifting force M=1000KN that the 600t metal mixer tilting needs through table one, through formula (2), asks hydro-cylinder 11 internal diameters:
Over design is got hydro-cylinder 11 inner diameter d=380mm.
Embodiment four
With the 300t hot metal mixer is example, obtains the lifting force M=600KN that the 300t metal mixer tilting needs through table one, through formula (3), asks hydro-cylinder 11 internal diameters:
Over design is got hydro-cylinder 11 inner diameter d=300mm.
Hydrostatic transmission hot metal mixer and mechanical transmission hot metal mixer are as broad as long in operation, need not other training, comprise other the electrical interlocks at position of hot metal mixer; Instrument shows, safety features, electrical control cubicles; Operator's console or the like; Keep original traditional operation custom fully, this is to operator's safe operation, and it is very beneficial to accept novel appts.
Claims (7)
1. hydraulic driven hot metal mixer; Comprise body of heater, hanger bearing device and tiling arrangement, body of heater is a rotator, its turning axle horizontal arrangement; The body of heater top is provided with hot-metal charging notch; One side of body of heater is provided with iron notch, opposite side connects tiling arrangement, and hanger bearing device lifting body of heater fascinates it around turning axle under the driving of tiling arrangement; It is characterized in that: the center of gravity and the turning axle of said body of heater depart from, and fascinating of body of heater is that off-centre is fascinated; Said tiling arrangement comprises power-equipment and hydraulic power actuating system, and the piston output terminal of hydraulic power actuating system is fixedly connected the lateral bottom of body of heater, this piston output terminal moving linearly; Said tiling arrangement comprises motor, oil pump, fuel tank, straight line hydro-cylinder and the piston rod that connects successively; Piston rod is arranged in the straight line hydro-cylinder; The hinged body of heater of one end, the other end have piston; Piston is isolated into upper and lower oil pocket with the straight line hydro-cylinder; Straight line hydro-cylinder cylinder mouth is provided with the spacing end cap of piston rod, and the electric motor driving oil pump gets into the upper and lower oil pocket of straight line hydro-cylinder respectively with the hydraulicefficiency oil in the fuel tank, and the pressure difference piston rod through the piston two ends is along moving linearly in the straight line hydro-cylinder.
2. hydraulic driven hot metal mixer according to claim 1 is characterized in that: said hydro-cylinder inwall adopts the working method of secondary cold-drawn.
3. hydraulic driven hot metal mixer according to claim 1 is characterized in that: said piston rod is a hollow stem.
4. hydraulic driven hot metal mixer according to claim 1 is characterized in that: said piston rod surface adopts roll extrusion or/and chromed hardened surface treatment method.
5. hydraulic driven hot metal mixer according to claim 1 is characterized in that: be provided with UNICOM's oil pipe between the upper and lower oil pocket of said hydro-cylinder, on UNICOM's oil pipe normal closed gate be installed.
6. hydraulic driven hot metal mixer according to claim 1 is characterized in that: the stroke of said piston rod equals the chord length of the maximum turning angle of body of heater.
7. hydraulic driven hot metal mixer according to claim 1 is characterized in that: the size of said hydro-cylinder inner diameter d obtains through following formula:
，
In the formula, d is a straight line hydro-cylinder internal diameter, and unit is mm,
Q is the straight line thrust hydraulic cylinder, and unit is KN,
P is the hydraulicefficiency oil pressure, and unit is MPa,
E is the pressure medium constant under the different hydraulicefficiency oil pressures;
Said thrust hydraulic cylinder Q confirms that through the lifting force M that metal mixer tilting needs its size obtains through following formula:
In the formula, G is the hot metal mixer deadweight, and unit is Kg,
S is the distance of hot metal mixer center of gravity center and rotation center, and unit is mm,
R is the moment of fascinating of hot metal mixer, and unit is Nm.
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| CN201990693U (en) * | 2011-03-10 | 2011-09-28 | 德阳万达重型机械设备制造有限公司 | Hydraulic driven mixer furnace |
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