CN105909582B - A kind of hydraulic system of steel ladle hydraulic pressure turn-over device - Google Patents
A kind of hydraulic system of steel ladle hydraulic pressure turn-over device Download PDFInfo
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- CN105909582B CN105909582B CN201610511841.8A CN201610511841A CN105909582B CN 105909582 B CN105909582 B CN 105909582B CN 201610511841 A CN201610511841 A CN 201610511841A CN 105909582 B CN105909582 B CN 105909582B
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- steel ladle
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- fuel tank
- hydraulic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/06—Equipment for tilting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
Abstract
The invention discloses a kind of hydraulic system of steel ladle hydraulic pressure turn-over device, belongs to technical field of metallurgical equipment.It includes oil-feeding control part, master cylinder control section and auxiliary cylinder control section；In oil-feeding control part, fuel tank, main pump, check valve and filter are sequentially connected with by pipeline, and electromagnetic relief valve is located between the outlet of main pump and fuel tank, and mair motor is connected with main pump, provides pressure oil for system；Master cylinder control section includes proportioning valve, the first solenoid directional control valve and steel ladle oil cylinder, for controlling the rotary movement of steel ladle；Auxiliary cylinder control section includes pressure-reducing valve, the second solenoid directional control valve, one-way throttle valve and locking cylinder, for controlling the locking or unblock of steel ladle.The present invention can carry out system, comprehensively control to steel ladle hydraulic pressure turn-over device, it is ensured that the stability of equipment operation, reliability and security, greatly improve production efficiency, reduce production cost.
Description
Technical field
The invention belongs to the Hydraulic System of Metallurgical Equipment field, more particularly, it relates to a kind of steel ladle hydraulic pressure turn-over device
Hydraulic system.
Background technology
At present, the steelshop of domestic and international metallurgy industry major part steel plant, especially the STEELMAKING PRODUCTION line of continuous casting process
Need supporting ladle-pot hot-repair device --- steel ladle turning device.Conventional steel ladle upset mode has at present：Elevator is tumbled, is driven a vehicle
Tumble, machinery is tumbled, hydraulic pressure is tumbled, cut both ways.Elevator equipment investment of tumbling is less, but civil engineering input is larger, equipment dimension
Shield input also compares many, and overall economic benefit is bad, and the ladle for being used for less than 40 tons at present is tumbled；Driving is tumbled, equipment
Zero input, but input cost of driving a vehicle is very high, and the orbit occupancy rate driven a vehicle is high, has a strong impact on the production in workshop, and produces effect
Rate is low, has very big relation with the level of moving operation personnel, and molten steel recovery rate is low, and manning is more, floor manager people
The life of member cannot be guaranteed safely, and it is not of uniform size to pour the iron block for casting out, and is rarely employed at present；Machinery is tumbled, cost input
Larger, plant maintenance is more costly, cannot be guaranteed safely, is also rarely employed at present.
Hydraulic pressure upset mode has the advantages that driving force is big, operates steadily, efficiency high, and its lifting weight up to 250 tons is
Presently the most conventional steel ladle tippling device.Steel ladle hydraulic dumping device is bulky, and steel ladle contains molten steel, in height
In warm, high vibrations, the harsh environments of high pollution, the requirement such as stability, reliability, security to its work is very high,
Its decisive action is that the hydraulic system of equipment.At present, the hydraulic system of steel ladle hydraulic dumping device is relatively simple, equipment
Operational stability, reliability, security are all than relatively low, it is often necessary to which maintenance down is safeguarded, and is occurred with security incident, seriously
Production efficiency is affected, which is restricted and is promoted the use of.
For example, Chinese Patent Application No. is：201310207758.8, the applying date is：The patent text on May 29th, 2013
Offer, disclose a kind of hydraulic turnover device of hot metal ladle, its steel construction underframe is fixed on ground；The steel construction underframe both sides pair
Title is fixed with two upset hydraulic cylinders, two columns and two cushioning support-saddles, and the top of two columns is respectively and fixedly provided with rotation
Seat, the front beam of travel(l)ing rest are symmetrically hinged on two rotary supports, and rear cross beam seat is on two cushioning support-saddles；It is described two
The tailpiece of the piston rod of upset hydraulic cylinder is symmetrically hinged on the left side plate of travel(l)ing rest；Install on the rear cross beam of the travel(l)ing rest
There are locking cylinder and locking bearing pin.The patent of invention gives the overall structure of hydraulic turnover device of hot metal ladle, worked to which
Cheng Jinhang is briefly described, but but the hydraulic system of device is not illustrated.
And for example, Chinese Patent Application No. is：201520315278.8, the applying date is：The patent text on May 15th, 2015
Offer, disclose a kind of ladle tilting facility, for realizing the action of tumbling of ladle, the ladle is cylindrical in shape and including radial symmetric
Two ladle trunnions for arranging, the ladle tilting facility include：Two dump cradles, respectively can with two ladle trunnions
It is detachably connected with to coordinate the clamping ladle and one can be respectively provided with the ladle coaxial rotating, each described dump cradle
Tie-beam, dump cradle described in two are connected by tie-beam；Drive mechanism, is connected to drive with dump cradle one of them described
Dump cradle described in two and ladle coaxial rotating；Follower, is connected with dump cradle another described and is propped up with aiding in this to tumble
Frame and ladle rotation.The same device is not also illustrated to the hydraulic system of device.As can be seen here, design one completely
The hydraulic system of steel ladle hydraulic pressure turn-over device be current problem demanding prompt solution.
The content of the invention
1st, problem to be solved
It is relatively simple for the hydraulic system of existing steel ladle hydraulic dumping device, it is often necessary to maintenance down maintenance, and
Occur with security incident, have a strong impact on production efficiency, restrict its problem promoted the use of, the present invention provides a kind of steel ladle liquid
The hydraulic system of pressure rotary device, the hydraulic system can carry out system, comprehensively control to steel ladle hydraulic pressure turn-over device, protect
Stability, reliability and the security of equipment operation are demonstrate,proved, production efficiency is greatly improved, production cost is reduced.
2nd, technical scheme
To solve the above problems, the present invention is adopted the following technical scheme that.
A kind of hydraulic system of steel ladle hydraulic pressure turn-over device, including oil-feeding control part, master cylinder control section and auxiliary
Help oil cylinder control section；Wherein：
Described oil-feeding control part includes fuel tank, main pump, mair motor, electromagnetic relief valve, check valve and filter, oil
Case, main pump, check valve and filter are sequentially connected with by pipeline, and electromagnetic relief valve is arranged between the outlet of main pump and fuel tank,
Mair motor is connected with main pump；
Described master cylinder control section includes proportioning valve, the first solenoid directional control valve and steel ladle oil cylinder, and filter goes out
Mouth P mouths respectively with proportioning valve, the P mouths of the first solenoid directional control valve are connected, the T mouths of the T mouths and the first solenoid directional control valve of proportioning valve
It is connected with fuel tank, the A mouths of the A mouths and the first solenoid directional control valve of proportioning valve all connect the rodless cavity of steel ladle oil cylinder, proportioning valve
B mouths and the B mouths of the first solenoid directional control valve all connect the rod chamber of steel ladle oil cylinder；
Described auxiliary cylinder control section includes pressure-reducing valve, the second solenoid directional control valve, one-way throttle valve and locking cylinder,
The outlet of filter connects the P mouths of the second solenoid directional control valve by pressure-reducing valve, and the T mouths of the second solenoid directional control valve connect fuel tank, the
The A mouths of two solenoid directional control valves connect the rodless cavity of locking cylinder by an one-way throttle valve, and the B mouths of the second solenoid directional control valve lead to
Cross the rod chamber that another one-way throttle valve connects locking cylinder.
Further, described oil-feeding control part also includes accumulator, and the outlet of filter is connected by accumulator ball valve
Connected tank, accumulator are connected between filter and accumulator ball valve.
Further, described fuel tank is provided with heater, respirator and liquid level gauge.
Further, described main pump is provided with antivibration pad.
Further, described master cylinder control section also includes balanced valve, and balanced valve is arranged on the A mouths and steel of proportioning valve
Between the rodless cavity of oil-in-water cylinder.
Further, described master cylinder control section also includes hydraulic control one-way valve, and the import connection of hydraulic control one-way valve is flat
Weighing apparatus valve, the rodless cavity of the outlet connection steel ladle oil cylinder of hydraulic control one-way valve, control port and the steel ladle oil cylinder of hydraulic control one-way valve
Rod chamber connection.
Further, bidirectional hydraulic lock is set between the A mouths and B mouths of the first described solenoid directional control valve.
Further, described master cylinder control section also includes choke valve and ball valve, the rodless cavity of steel ladle oil cylinder, section
Stream valve, ball valve and fuel tank are sequentially connected with by pipeline；The rod chamber of described steel ladle oil cylinder by unloading one-way valve with
Fuel tank connects.
Further, also control section is cooled down including fluid；Described fluid cooling control section includes circulating pump, circulation
Motor, overflow valve, cooler and return filter, fuel tank, circulating pump, cooler and return filter are formed by pipeline and are circulated
Loop, circulation motor are connected with circulating pump, and overflow valve is arranged between the outlet of circulating pump and fuel tank.
Further, described fuel tank is provided with liquid level relay.
3rd, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) hydraulic system of steel ladle hydraulic pressure turn-over device of the present invention, by oil-feeding control part, master cylinder control section
Stable, the reliable and safe control of steel ladle hydraulic pressure turn-over device is realized in combination with three part of auxiliary cylinder control section
System, oil-feeding control part provide pressure oil for system and ensure system pressure in safe range, and master cylinder control section controls
Steel ladle oil cylinder, the cooperation control of passing ratio valve and the first solenoid directional control valve realize the stable or quick of steel ladle oil cylinder
Process and backhaul, auxiliary cylinder control section controllable locking or unblock of the locking cylinder to steel ladle；
(2) hydraulic system of steel ladle hydraulic pressure turn-over device of the present invention, the accumulator of oil-feeding control part can ensure work
Status system pressure stability, can make accumulator off-load, and main pump dally by accumulator ball valve, system unloaded, and more
Unexpected, in power-off or the system failure, accumulator coordinates the artificial operation of the first solenoid directional control valve, can drive locking oil
Cylinder working, makes steel ladle quick release；
(3) hydraulic system of steel ladle hydraulic pressure turn-over device of the present invention, fuel tank are provided with heater, hydraulic oil can be carried out pre-
Heat, respirator ensure that fuel tank external and internal pressure is identical, liquid level gauge can hydraulic oil height in fuel tank at any time, main pump is provided with antivibration pad,
Reduce the vibrations of pump；
(4) hydraulic system of steel ladle hydraulic pressure turn-over device of the present invention, arranges flat between proportioning valve and steel ladle oil cylinder
Weighing apparatus valve, plays balance pressure effect, it is ensured that the stability of oil cylinder, increases the service life, and arrange fluid-control one-way on steel ladle oil cylinder
Valve, locks steel ladle oil cylinder under power-off or system fault condition, it is to avoid steel ladle drops suddenly and causes danger, improves safety
Property；Return to original state for steel ladle under enabling power-off or system fault condition, steel ladle oil cylinder by choke valve, ball valve with
Fuel tank connect, under steel ladle oil cylinder locking state, open ball valve, steel ladle can slowly land to initial position, i.e. steel
The piston rod of oil-in-water cylinder is withdrawn in cylinder barrel；
(5) hydraulic system of steel ladle hydraulic pressure turn-over device of the present invention, sets between the A mouths and B mouths of the first solenoid directional control valve
Bidirectional hydraulic lock is put, when the first solenoid directional control valve is located at middle position, itself and the connection between steel ladle oil cylinder is disconnected, by pressure-reducing valve control
Steel ladle cylinder efficient processed；
(6) hydraulic system of steel ladle hydraulic pressure turn-over device of the present invention, is provided with fluid cooling control section, in fuel tank
Hydraulic oil is cooled down, it is to avoid analysis of hydraulic oil overheat, it is ensured that system worked well；
(7) hydraulic system of steel ladle hydraulic pressure turn-over device of the present invention, fuel tank are provided with liquid level relay, connection control system
System, when hydraulic oil liquid level is too low, realizes the functions such as shutdown, warning.
Description of the drawings
Fig. 1 is the hydraulic scheme of steel ladle hydraulic pressure turn-over device of the present invention；
Fig. 2 is the partial enlarged drawing in Fig. 1 1.；
Fig. 3 is the partial enlarged drawing in Fig. 1 2.；
Fig. 4 is the partial enlarged drawing in Fig. 1 3.；
Fig. 5 is the partial enlarged drawing in Fig. 1 4.；
Fig. 6 is a kind of original state structural representation of steel ladle hydraulic pressure turn-over device；
Fig. 7 is a kind of rollover states structural representation of steel ladle hydraulic pressure turn-over device.
In figure：1st, fuel tank；101st, heater；102nd, respirator；103rd, liquid level gauge；2nd, main pump；201st, mair motor；202nd, keep away
Shake pad；3rd, electromagnetic relief valve；4th, check valve；5th, filter；6th, proportioning valve；7th, the first solenoid directional control valve；8th, bidirectional hydraulic lock；9、
Balanced valve；10th, steel ladle oil cylinder；11st, hydraulic control one-way valve；12nd, choke valve；13rd, ball valve；14th, pressure-reducing valve；15th, the second electromagnetism is changed
To valve；16th, one-way throttle valve；17th, locking cylinder；18th, circulating pump；19th, overflow valve；20th, return filter；21st, cooler；
22nd, accumulator；23rd, accumulator ball valve；24th, base；25th, travel(l)ing rest；26th, steel ladle；27th, steel ladle retaining mechanism.
Specific embodiment
The present invention is further described below with reference to specific embodiments and the drawings.
Embodiment 1
A kind of hydraulic system of steel ladle hydraulic pressure turn-over device of the present embodiment, the steel ladle hydraulic pressure turn-over device for being controlled
As shown in Figure 6 and Figure 7, the steel ladle hydraulic pressure turn-over device includes base 24, travel(l)ing rest 25, steel ladle oil cylinder 10, steel to structure
Water bag 26 and steel ladle retaining mechanism 27；Wherein, travel(l)ing rest 25 is hingedly connected on base 24, the piston of steel ladle oil cylinder 10
Bar is hinged with travel(l)ing rest 25, and cylinder barrel and the base 24 of steel ladle oil cylinder 10 are hinged, and steel ladle 26 is placed on travel(l)ing rest 25,
And be fixedly connected with travel(l)ing rest 25 by steel ladle retaining mechanism 27, the dynamical element of steel ladle retaining mechanism 27 is locking oil
Cylinder 17.
With reference to Fig. 1 to Fig. 5, the hydraulic system of above-mentioned steel ladle hydraulic pressure turn-over device, it includes oil-feeding control part, main oil
Cylinder control section, auxiliary cylinder control section and fluid cooling control section, is carried out to the structure of these parts separately below
Describe in detail.
As shown in Fig. 2 described oil-feeding control part includes fuel tank 1, main pump 2, mair motor 201, electromagnetic relief valve 3, list
To valve 4, filter 5, accumulator 22 and accumulator ball valve 23；Wherein, fuel tank 1 is provided with heater 101, respirator 102 and liquid level
Meter 103, heater 101 is preheated to hydraulic oil, and respirator 102 ensures that fuel tank external and internal pressure is identical, and liquid level gauge 103 can be at any time
Hydraulic oil height in fuel tank 1.Fuel tank 1, main pump 2, check valve 4 and filter 5 are sequentially connected with by pipeline, and electromagnetic relief valve 3 sets
Put between the outlet of main pump 2 and fuel tank 1, mair motor 201 is connected with main pump 2, main pump 2 adopts constant pressure plunger displacement pump, and sets
Antivibration pad 202 is equipped with, reduces the vibrations of pump.The outlet of filter 5 connects fuel tank 1 by accumulator ball valve 23, and accumulator 22 connects
It is connected between filter 5 and accumulator ball valve 23, accumulator 22 can ensure that working condition system pressure is stable, by accumulator ball
Valve 23 can make 22 off-load of accumulator, and main pump 1 dally, system unloaded, and more surprisingly, in power-off or system
During failure, accumulator 22 coordinates the operation of the first following solenoid directional control valves 7, and locking cylinder 17 can be driven to work, steel ladle is made
26 quick releases.In the present embodiment, fuel tank 1 is provided with liquid level relay, relay connection control system, in 1 liquid level of fuel tank
During less than setting value, reported to the police or shut down, system is shielded.
As shown in figure 3, described master cylinder control section includes proportioning valve 6, the first solenoid directional control valve 7, balanced valve 9 and steel
Oil-in-water cylinder 10；Wherein, the P mouths for exporting respectively with proportioning valve 6 of filter 5, the P mouths of the first solenoid directional control valve 7 are connected, ratio
The T mouths of the T mouths of valve 6 and the first solenoid directional control valve 7 are connected with fuel tank 1, the A of the A mouths of proportioning valve 6 and the first solenoid directional control valve 7
Mouth all passes through the B mouths of the rodless cavity of the connection steel ladle of balanced valve 9 oil cylinder 10, the B mouths of proportioning valve 6 and the first solenoid directional control valve 7 all
The rod chamber of connection steel ladle oil cylinder 10, and bidirectional hydraulic lock 8 is set between the A mouths and B mouths of the first solenoid directional control valve 7, the
When one solenoid directional control valve 7 is in middle position, its connection with steel ladle oil cylinder 10 is disconnected.In the present embodiment, proportioning valve 6 and first is electric
Magnetic reversal valve 7 is three-position four-way valve, and, in middle position, each hydraulic fluid port is not connected for proportioning valve 6, during the first 7 middle position of solenoid directional control valve,
P mouths disconnect, and A mouths and B mouths are connected with T mouths.
In the present embodiment, master cylinder control section also includes hydraulic control one-way valve 11, choke valve 12 and ball valve 13, fluid-control one-way
Valve 11 is arranged between balanced valve 9 and steel ladle oil cylinder 10, i.e. the import connecting balanced valve 9 of hydraulic control one-way valve 11, fluid-control one-way
The rodless cavity of the outlet connection steel ladle oil cylinder 10 of valve 11, the control port of hydraulic control one-way valve 11 have bar with steel ladle oil cylinder 10
Chamber connects；The rodless cavity of steel ladle oil cylinder 10, choke valve 12, ball valve 13 and fuel tank 1 are sequentially connected with by pipeline, and steel ladle oil
The rod chamber of cylinder 10 is connected with fuel tank 1 by a unloading one-way valve.
As shown in figure 4, described auxiliary cylinder control section includes pressure-reducing valve 14, the second solenoid directional control valve 15, unidirectional section
Stream valve 16 and locking cylinder 17, the outlet of filter 5 connect the P mouths of the second solenoid directional control valve 15 by pressure-reducing valve 14, and second is electric
The T mouths connection fuel tank 1 of magnetic reversal valve 15, the A mouths of the second solenoid directional control valve 15 are by the connection locking oil of one-way throttle valve 16
The rodless cavity of cylinder 17, the B mouths of the second solenoid directional control valve 15 have bar by what another one-way throttle valve 16 connected locking cylinder 17
Chamber.Second solenoid directional control valve 15 is three-position four-way valve, and during middle position, each hydraulic fluid port disconnects, not connected.
As shown in figure 5, described fluid cooling control section includes circulating pump 18, circulation motor, overflow valve 19, cooler
21 and return filter 20, fuel tank 1, circulating pump 18, cooler 21 and return filter 20 form closed circuit by pipeline, follow
Ring motor is connected with circulating pump 18, and overflow valve 19 is arranged between the outlet of circulating pump 18 and fuel tank 1.Fluid cooling control
Part is cooled down to hydraulic oil in fuel tank 1, it is to avoid analysis of hydraulic oil overheat, it is ensured that system worked well.
A kind of hydraulic system of steel ladle hydraulic pressure turn-over device of the present embodiment, its working condition are as follows：
1. steel ladle overturns working condition
6 left position of proportioning valve or right position are connected, the first solenoid directional control valve 7 is connect in middle position, 15 right position of the second solenoid directional control valve
Logical, steel ladle oil cylinder 10 promotes travel(l)ing rest 25 to drive steel ladle 26 to overturn, and locking cylinder 17 works, steel ladle retaining mechanism 27
Steel ladle 26 is locked on travel(l)ing rest 25.
2. quick rollover states of steel ladle
Proportioning valve 6 and the first solenoid directional control valve 7 are in left position or right position, the flow increase of steel ladle oil cylinder 10, speed simultaneously
Degree speeds, and realizes the quick upset of steel ladle 26.
3. power-off or failsafe state
Under this state, 10 fuel cut-off of steel ladle oil cylinder, in the case where hydraulic control one-way valve 11 is acted on, steel ladle oil cylinder 10 is pinned,
Steel ladle 26 will not be dropped suddenly；Now, ball valve 13 is opened, hydraulic oil flows back to fuel tank by choke valve 12 in steel ladle oil cylinder 10
1, steel ladle 26 is slow to be declined.
4. power-off or the unblock of failure steel ladle
Under this state, 17 fuel cut-off of locking cylinder, locking cylinder 17 are in locking state, now adjust the second electromagnetism and change
To the valve element of valve 15 to left position, in the presence of accumulator 22, steel ladle retaining mechanism 27 is unlocked, i.e. steel ladle 26 and activity
Frame 25 is separable.
5. hydraulic oil cooling state
Circulating pump 18 works, and is flowing back to fuel tank 1, realize hydraulic pressure in hydraulic oil suction cooler 21 in fuel tank 1 after cooling down
Oil cools.
In sum, the hydraulic system of the steel ladle hydraulic pressure turn-over device of the present embodiment passes through oil-feeding control part, main oil
The tetrameric combination in cylinder control section, auxiliary cylinder control section and fluid cooling control section, turns over to steel ladle hydraulic pressure
Rotary device carries out system, comprehensively controls, it is ensured that the stability of equipment operation, reliability and security, greatly improves production effect
Rate, reduces production cost.
Example of the present invention is only that the preferred embodiment of the present invention is described, not to present inventive concept and
Scope is defined, on the premise of without departing from design philosophy of the present invention, technology of this area engineers and technicians to the present invention
Various modifications and improvement that scheme is made, all should fall into protection scope of the present invention.
Claims (10)
1. a kind of hydraulic system of steel ladle hydraulic pressure turn-over device, it is characterised in that：Including oil-feeding control part, master cylinder control
Part and auxiliary cylinder control section；Wherein：
Described oil-feeding control part includes fuel tank (1), main pump (2), mair motor (201), electromagnetic relief valve (3), check valve (4)
With filter (5), fuel tank (1), main pump (2), check valve (4) and filter (5) be sequentially connected with by pipeline, electromagnetic relief valve
(3) it is arranged between the outlet of main pump (2) and fuel tank (1), mair motor (201) is connected with main pump (2)；
Described master cylinder control section includes proportioning valve (6), the first solenoid directional control valve (7) and steel ladle oil cylinder (10), filters
The outlet of device (5) P mouths respectively with proportioning valve (6), the P mouths of the first solenoid directional control valve (7) are connected, the T mouths of proportioning valve (6) and
The T mouths of one solenoid directional control valve (7) are connected with fuel tank (1), and the A mouths of the A mouths and the first solenoid directional control valve (7) of proportioning valve (6) are all
The rodless cavity of connection steel ladle oil cylinder (10), the B mouths of the B mouths and the first solenoid directional control valve (7) of proportioning valve (6) all connect steel ladle
The rod chamber of oil cylinder (10)；
Described auxiliary cylinder control section include pressure-reducing valve (14), the second solenoid directional control valve (15), one-way throttle valve (16) and
Locking cylinder (17), the outlet of filter (5) connect the P mouths of the second solenoid directional control valve (15) by pressure-reducing valve (14), and second is electric
T mouths connection fuel tank (1) of magnetic reversal valve (15), the A mouths of the second solenoid directional control valve (15) are connected by an one-way throttle valve (16)
The rodless cavity of locking cylinder (17) is connect, the B mouths of the second solenoid directional control valve (15) are by another one-way throttle valve (16) connection lock
The rod chamber of locking oil cylinder (17).
2. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 1, it is characterised in that：Described confession
Oily control section also includes accumulator (22), and the outlet of filter (5) connects fuel tank (1), accumulation of energy by accumulator ball valve (23)
Device (22) is connected between filter (5) and accumulator ball valve (23).
3. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 1 and 2, it is characterised in that：It is described
Fuel tank (1) be provided with heater (101), respirator (102) and liquid level gauge (103).
4. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 1 and 2, it is characterised in that：It is described
Main pump (2) be provided with antivibration pad (202).
5. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 1, it is characterised in that：Described master
Oil cylinder control section also includes balanced valve (9), and balanced valve (9) is arranged on the A mouths of proportioning valve (6) and the nothing of steel ladle oil cylinder (10)
Between rod cavity.
6. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 5, it is characterised in that：Described master
Oil cylinder control section also includes hydraulic control one-way valve (11), the outlet of the import connecting balanced valve (9) of hydraulic control one-way valve (11), hydraulic control
The rodless cavity of outlet connection steel ladle oil cylinder (10) of check valve (11), control port and the steel ladle oil of hydraulic control one-way valve (11)
The rod chamber connection of cylinder (10).
7. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 5, it is characterised in that：Described
Bidirectional hydraulic lock (8) is set between the A mouths and B mouths of one solenoid directional control valve (7).
8. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 5 or 6, it is characterised in that：It is described
Master cylinder control section also include choke valve (12) and ball valve (13), the rodless cavity of steel ladle oil cylinder (10), choke valve (12),
Ball valve (13) and fuel tank (1) are sequentially connected with by pipeline；The rod chamber of described steel ladle oil cylinder (10) passes through an off-load list
It is connected to valve with fuel tank (1).
9. a kind of hydraulic system of steel ladle hydraulic pressure turn-over device according to claim 1 or 5, it is characterised in that：Also wrap
Include fluid cooling control section；Described fluid cooling control section include circulating pump (18), circulation motor, overflow valve (19),
Cooler (21) and return filter (20), fuel tank (1), circulating pump (18), cooler (21) and return filter (20) pass through
Pipeline forms closed circuit, and circulation motor is connected with circulating pump (18), and overflow valve (19) is arranged on going out for circulating pump (18)
Between mouth and fuel tank (1).
10. the hydraulic system of a kind of steel ladle hydraulic pressure turn-over device according to claim 1, it is characterised in that：Described
Fuel tank (1) is provided with liquid level relay.
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| CN107524645B (en) * | 2017-09-11 | 2023-09-29 | 洛阳涧光特种装备股份有限公司 | Independent circulating filtering temperature control water cooling hydraulic system |
| CN109458382A (en) * | 2018-12-28 | 2019-03-12 | 山东华阳众能动力科技有限公司 | A kind of oil supply system and the Steam Turbine for power plant |
| CN110131225B (en) * | 2019-04-02 | 2021-03-05 | 太原重工股份有限公司 | Hydraulic control loop and method for lower die locking cylinder of bending machine |
| CN110608207B (en) * | 2019-09-19 | 2021-05-14 | 柳州柳工挖掘机有限公司 | Emergency unloading device for hydraulic actuating element of engineering machinery |
| CN111173791A (en) * | 2020-02-17 | 2020-05-19 | 四川川润智能流体技术有限公司 | Roller press hydraulic system with independent roller withdrawing function and operation method thereof |
| CN113210952B (en) * | 2021-06-08 | 2022-04-22 | 湘潭大学 | Cold source acquisition system for welding |
| CN114439796B (en) * | 2021-11-16 | 2024-05-03 | 无锡华联科技集团有限公司 | Hydraulic equipment for large-scale thin plate overturning multi-group independent modularized pump station |
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| US3977461A (en) * | 1973-06-21 | 1976-08-31 | General Motors Corporation | Continuous mechanical iron pouring line |
| JP4232878B2 (en) * | 1999-06-29 | 2009-03-04 | 株式会社アルバック | Method for controlling pouring device and control device therefor |
| CN201020530Y (en) * | 2007-03-29 | 2008-02-13 | 上海梅山钢铁股份有限公司 | Multiloop controlled molten steel sack sliding gate hydraulic system |
| CN202833448U (en) * | 2012-09-13 | 2013-03-27 | 上海梅山工业民用工程设计研究院有限公司 | Tilting gear overturn and reversing mechanism |
| CN103541938A (en) * | 2013-09-11 | 2014-01-29 | 昆山新金福精密电子有限公司 | Hydraulic system |
| CN204099309U (en) * | 2014-08-12 | 2015-01-14 | 嵊州市银河铝业有限公司 | A kind of aluminium holding furnace is tumbled hydraulic system |
| CN205744656U (en) * | 2016-06-30 | 2016-11-30 | 马鞍山市致呈机电有限公司 | A kind of hydraulic system of steel ladle hydraulic pressure turn-over device |
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Address after: 243000 Huangli village, Huoli Town, Huashan District, Ma'anshan City, Anhui Province Patentee after: Maanshan Zhicheng Electromechanical Co.,Ltd. Address before: 243000 Huangli village, Huoli Town, Huashan District, Ma'anshan City, Anhui Province Patentee before: ZHICHENG MECHANICAL MANUFACTURING CO.,LTD. |