CN103273025B - The two unit leaf spring hydraulic vibration device of a kind of bloom, circle base and shaped blank - Google Patents
The two unit leaf spring hydraulic vibration device of a kind of bloom, circle base and shaped blank Download PDFInfo
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- CN103273025B CN103273025B CN201310111799.7A CN201310111799A CN103273025B CN 103273025 B CN103273025 B CN 103273025B CN 201310111799 A CN201310111799 A CN 201310111799A CN 103273025 B CN103273025 B CN 103273025B
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Abstract
The invention provides the two unit leaf spring hydraulic vibration device of a kind of bloom, circle base and shaped blank, this device has inner arc hydraulic vibration unit, outer arc hydraulic vibration unit and a set of hydraulic servo control system; Inside and outside arc hydraulic vibration unit is distributed in crystallizer inner arc side and outer arc side respectively, it is characterized in that: inside and outside arc hydraulic vibration unit is by fixed frame, vibration frame, oscillation drive, vibration guidance system, these major parts of crystallizer mounting and positioning device composition; The vibration guidance system of the inside and outside arc hydraulic vibration unit of described device all has three groups of leaf spring groups; The displacement drive of inside and outside arc hydraulic vibration unit oscillation drive separately and the guide effect of leaf spring group make the crystallizer be mounted thereon accurately can realize the motion of imitative arc.Energy on-line control vibration amplitude of the present invention, frequency and waveform, have the advantages such as serviceability is stable, precision of simulated arc is high, the life-span is long, on-bne repair is easy to maintenance.
Description
Technical field
The present invention relates to the two unit leaf spring hydraulic vibration device of a kind of bloom, circle base and shaped blank, belong to the key equipment on steel mill bloom, circle base and Profiled Slab CCM, make the crystallizer on it implement regular of reciprocating vibration by given amplitude, frequency and waveform.
Background technology
The object of vibrating device is convenient to " demoulding ", prevents strand from occurring to bond with crystallizer copper wall in process of setting and occurring hanging bleed-out accident.Domestic and international bloom, circle base and casting for shaped blank continuous production field at present, conventional vibrating device mainly contains three types: galianconism quadric chain leads, and half leaf spring vibrates, the full leaf spring of cantilever vibrates, two unit hydraulic vibration device.Wherein first two type can be divided into again mechanical type and fluid pressure type two kinds by type of drive.
For the vibrating device of first two type, although fluid pressure type is provided with the function of on-line control amplitude, frequency and waveform compared with mechanical type; But due to their design feature, these two kinds of vibrating devices are not suitable for the needs of dither, and existence vibration precision is low, difficulty of processing large and install, change the weakness such as inconvenient.
Two unit hydraulic vibration devices of current use due to the hydraulic servo cylinder on two vibration units and on displacement transducer be all positioned near strand side, affect by blank hot radiation and a large amount of water vapour during production, easy generation fault, even cause failure of oscillation, simultaneously hydraulic servo cylinder and displacement transducer not long for service life yet; In addition because strand side can not arrange inspection platform in process layout, therefore also there is on-bne repair, safeguard the weakness of inconvenience in two unit hydraulic vibration devices of this structure.
In view of this, be necessary to provide a kind of bloom, circle base and shaped blank two unit leaf spring hydraulic vibration device, to overcome above-mentioned defect.
Summary of the invention
The object of the invention is: for the deficiencies in the prior art, a kind of novel two unit leaf spring hydraulic vibration devices for bloom, circle base and continuous beam blank casting are provided, energy on-line control vibration amplitude of the present invention, frequency and waveform, have the advantages such as serviceability is stable, precision of simulated arc is high, the life-span is long, on-bne repair is easy to maintenance.
Technical scheme of the present invention is: the two unit leaf spring hydraulic vibration device of a kind of bloom, circle base and shaped blank, and this device has inner arc hydraulic vibration unit, outer arc hydraulic vibration unit and a set of hydraulic servo control system; Inner arc hydraulic vibration unit and outer arc hydraulic vibration unit are distributed in crystallizer inner arc side and outer arc side respectively, it is characterized in that:
Inner arc hydraulic vibration unit and outer arc hydraulic vibration unit are by fixed frame, vibration frame, oscillation drive, vibration guidance system, these major parts of crystallizer mounting and positioning device composition; For inner arc hydraulic vibration unit: vibration frame is positioned in the fixed frame of case structure, fixed frame is provided with the hydraulic servo cylinder of oscillation drive, hydraulic servo cylinder piston rod is connected with vibration frame by push rod; Three groups of leaf spring groups in vibration guidance system, lay respectively at above and on the lower position of side of the both sides of inner arc hydraulic vibration unit; Leaf spring group two ends and centre are respectively by pin and be bolted on fixed frame bearing and vibration frame bearing;
The inner arc hydraulic vibration unit of described pair of unit leaf spring hydraulic vibration device and the vibration guidance system of outer arc hydraulic vibration unit all have three groups of leaf spring groups; The displacement drive of inside and outside arc hydraulic vibration unit oscillation drive separately and the guide effect of leaf spring group make the crystallizer be mounted thereon accurately can realize the motion of imitative arc.Its beneficial effect is: this device serviceability is stable, precision of simulated arc is high.
The two unit leaf spring hydraulic vibration device of bloom as above, circle base and shaped blank, it is characterized in that, the oscillation drive of the inner arc hydraulic vibration unit of described device is arranged on this unit inner arc side, the oscillation drive of outer arc hydraulic vibration unit is arranged on this unit outer arc side, namely the oscillation drive of inside and outside arc hydraulic vibration unit is not all in strand side, avoids blank hot radiation and a large amount of water vapour affects oscillation drive.Its beneficial effect is: this device serviceability is stable, the life-span is long, on-bne repair is easy to maintenance.
The two unit leaf spring hydraulic vibration device of bloom as above, circle base and shaped blank, is characterized in that, the hydraulic servo cylinder of the oscillation drive of described device is mounted in the metal box of band inflation cooling of good seal.Its beneficial effect is: guarantee that the work of hydraulic servo cylinder all components and parts is good.
The two unit leaf spring hydraulic vibration device of bloom as above, circle base and shaped blank, it is characterized in that, the displacement transducer of the hydraulic servo control system of described device is arranged on hydraulic servo cylinder interior.Its beneficial effect is: can on-line control vibration amplitude, frequency and waveform.
The invention has the beneficial effects as follows: 1) this device serviceability is stable, precision of simulated arc is high; 2) this device lifetime is long, on-bne repair is easy to maintenance; 3) structure of this device can guarantee that the work of hydraulic servo cylinder all components and parts is good; 4) hydraulic servo control system of this device can on-line control vibration amplitude, frequency and waveform.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the embodiment of the present invention.
Fig. 2 is the outer arc hydraulic vibration unit three-dimensional structure chart of the embodiment of the present invention.
Fig. 3 is the inner arc hydraulic vibration unit three-dimensional structure chart of the embodiment of the present invention.
Fig. 4 is the sectional view of the outer arc hydraulic vibration unit of the embodiment of the present invention.
Fig. 5 is the sectional view of the inner arc hydraulic vibration unit of the embodiment of the present invention.
Fig. 6 is the guiding principle schematic diagram of the embodiment of the present invention.
Fig. 7 is embodiment of the present invention hydraulic servo control system schematic diagram.
Detailed description of the invention
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within claims limited range listed by the application.
Label declaration in accompanying drawing: 1-outer arc hydraulic vibration unit, 2-inner arc hydraulic vibration unit, 3-crystallizer, 4-strand, 5-fixed frame, 6-vibration frame, 7-alignment pin, 8-set bolt, 9-leaf spring group (1), 10-leaf spring group (2), 11-leaf spring group (3), 12-outer arc swash plate (1), 13-outer arc swash plate (2), 14-outer arc swash plate (3), 15-inner arc swash plate (1), 16-inner arc swash plate (2), 17-inner arc swash plate (3), 18-outer arc oil cylinder connects swash plate (1), 19-push rod, 20-outer arc oil cylinder connects swash plate (2), 21-hydraulic servo cylinder, 22-inner arc oil cylinder connects swash plate (1), 23-inner arc oil cylinder connects swash plate (2).
The static structure of the embodiment of the present invention is as follows:
See Fig. 1, two unit leaf spring hydraulic vibration device is by having outer arc hydraulic vibration unit 1, inner arc hydraulic vibration unit 2 and a set of hydraulic servo control system; Outer arc hydraulic vibration unit 1 and inner arc hydraulic vibration unit 2 are distributed in crystallizer 3 outer arc side and inner arc side respectively.
See Fig. 2 to Fig. 5, outer arc hydraulic vibration unit 1 is similar with inner arc hydraulic vibration unit 2 structure, all has the fixed frame in identical fixed frame 5, vibration frame 6, alignment pin 7, set bolt 8, leaf spring group (1) 9, leaf spring group (2) 10, leaf spring group (3) 11(outer arc hydraulic vibration unit 1 and inner arc hydraulic vibration unit 2 and vibration frame also can be designed to different structures as the case may be).Vibration frame 6 is positioned at the fixed frame 5 li of case structure.Alignment pin 7, set bolt 8 are arranged on vibration frame 6, constitute crystallizer mounting and positioning device.Oscillation drive is made up of hydraulic servo cylinder 21 and push rod 19, push rod 19 be threaded connection be fixed on hydraulic servo cylinder 21 piston rod on.The hydraulic servo cylinder 21 of two vibration units is not all in strand side.Oscillation drive connects swash plate (1) 18 by outer arc oil cylinder, outer arc oil cylinder connects swash plate (2) 20, inner arc oil cylinder connects swash plate (1) 22, inner arc oil cylinder connects swash plate (2) 23 and is connected on the respective fixed frame 5 of two vibration units and vibration frame 6 with bolt and pin respectively.Leaf spring group (1) 9, leaf spring group (2) 10, leaf spring group (3) 11, lay respectively at above and on the lower position of side of vibration unit both sides, they according to respective position respectively with outer arc swash plate (1) 12, outer arc swash plate (2) 13, outer arc swash plate (3) 14, inner arc swash plate (1) 15, inner arc swash plate (2) 16, inner arc swash plate (3) 17 links together with bolt and pin; The swash plate at two ends is by pin and be bolted on fixed frame 5 bearing, middle swash plate is by pin and to be bolted on vibration frame 6 bearing (in straight mold type caster, vibrating device does not do the motion of imitative arc, leaf spring group also can be connected directly between on vibration frame and fixed frame, does not need to design various swash plate).Leaf spring group (1) 9, leaf spring group (2) 10, leaf spring group (3) 11, outer arc swash plate (1) 12, outer arc swash plate (2) 13, outer arc swash plate (3) 14, inner arc swash plate (1) 15, inner arc swash plate (2) 16, inner arc swash plate (3) 17, outer arc oil cylinder connects swash plate (1) 18, outer arc oil cylinder connects swash plate (2) 20, inner arc oil cylinder connects swash plate (1) 22, inner arc oil cylinder connects the vibration guidance system that swash plate (2) 23 forms vibration unit together, ensure that the crystallizer 3 be arranged on vibration unit accurately realizes imitative arc motion.
The dynamic process of the embodiment of the present invention is as follows:
See Fig. 4 to Fig. 6, O point is casting machine central point, A point be in outer arc vibration unit oscillation drive to the application point of vibration frame, B point be in inner arc vibration unit oscillation drive to the application point of vibration frame.Because the relation that outer arc oil cylinder connects swash plate (1) 18, outer arc oil cylinder connects swash plate (2) 20, inner arc oil cylinder connects swash plate (1) 22, inner arc oil cylinder connects swash plate (2) 23 makes the oscillation drive of two vibration units have respective suitable setting angle respectively, ensure A point, the direction of motion of B point is respectively perpendicular to OA, OB.Crystallizer is fixed on the vibration frame of two vibration units, therefore they can be regarded as a rigid body; Then when the oscillation drive of two vibration units provides a certain proportion of motion according to the position of A, B point simultaneously, rigid body will do imitative arc motion around casting machine central point O.This center O is also the instantaneous centre of each leaf spring group, and each leaf spring group all links together with respective swash plate according to positions different separately, makes the extended line of their center lines by casting machine central point O, ensures that crystallizer accurately realizes the motion of imitative arc.
See Fig. 7, described hydraulic servo control system comprises servo valve, displacement transducer, controller etc.This hydraulic servo control system is closed-loop control system.Position control is realized by the control of controller to the servo valve with proportional effect, and controller exports the control signal of different brackets to servo valve, and the position that this servo valve just can control hydraulic cylinder generation different distance is moved.Displacement transducer is arranged on the piston rod of hydraulic servo cylinder, and for generation of the feedback signal of position loop, this signal is the true reflection of vibration unit vibration frame physical location.The setting value in loop is not a fix set point, is that the function of time produced online by director demon generates, this function representation vibration path curve.Compare actual value and setting value continuously, any difference is compensated at once therebetween.The control of position loop is a part for software, can use any compensation method, and the dynamic control performance of reaction time and system mechanical characteristics is mated.The same path curve signal of two hydraulic servo cylinders is so just made to carry out synchronous operation.The control of position loop is on-line operation in the controller, and it is consistent to be strict with two hydraulic servo cylinder dynamic properties, thus obtains high accuracy and good simultaneously operating.Another function of director demon is online generation guiding function (vibration path curve), and not only can obtain sinusoidal and non-sine function, other function algorithm also can obtain, and this also makes on-line control vibration amplitude, frequency and waveform become possibility.
The content be not described in detail in this description belongs to the known prior art of professional and technical personnel in the field.
Claims (3)
1. the two unit leaf spring hydraulic vibration device of bloom, circle base and shaped blank, this device has inner arc hydraulic vibration unit, outer arc hydraulic vibration unit and a set of hydraulic servo control system; Inner arc hydraulic vibration unit and outer arc hydraulic vibration unit are distributed in crystallizer inner arc side and outer arc side respectively, it is characterized in that:
Inner arc hydraulic vibration unit and outer arc hydraulic vibration unit are by fixed frame, vibration frame, oscillation drive, vibration guidance system, these major parts of crystallizer mounting and positioning device composition; For inner arc hydraulic vibration unit: vibration frame is positioned in the fixed frame of case structure, fixed frame is provided with the hydraulic servo cylinder of oscillation drive, hydraulic servo cylinder piston rod is connected with vibration frame by push rod; Three groups of leaf spring groups in vibration guidance system, lay respectively at above and on the lower position of side of the both sides of inner arc hydraulic vibration unit; Leaf spring group two ends and centre are respectively by pin and be bolted on fixed frame bearing and vibration frame bearing;
The inner arc hydraulic vibration unit of described pair of unit leaf spring hydraulic vibration device and the vibration guidance system of outer arc hydraulic vibration unit all have three groups of leaf spring groups; The displacement drive of inside and outside arc hydraulic vibration unit oscillation drive separately and the guide effect of leaf spring group make the crystallizer be mounted thereon accurately can realize the motion of imitative arc;
The oscillation drive of the inner arc hydraulic vibration unit of described device is arranged on this unit inner arc side, the oscillation drive of outer arc hydraulic vibration unit is arranged on this unit outer arc side, namely the oscillation drive of inside and outside arc hydraulic vibration unit is not all in strand side, avoids blank hot radiation and a large amount of water vapour affects oscillation drive.
2. the two unit leaf spring hydraulic vibration device of bloom according to claim 1, circle base and shaped blank, is characterized in that, the hydraulic servo cylinder of the oscillation drive of described device is mounted in the metal box of band inflation cooling of good seal.
3. the two unit leaf spring hydraulic vibration device of bloom according to claim 1, circle base and shaped blank, it is characterized in that, the displacement transducer of the hydraulic servo control system of described device is arranged on hydraulic servo cylinder interior.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310111799.7A CN103273025B (en) | 2013-04-02 | 2013-04-02 | The two unit leaf spring hydraulic vibration device of a kind of bloom, circle base and shaped blank |
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| CN201310111799.7A CN103273025B (en) | 2013-04-02 | 2013-04-02 | The two unit leaf spring hydraulic vibration device of a kind of bloom, circle base and shaped blank |
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| CN103273025B true CN103273025B (en) | 2015-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108145102A (en) * | 2017-12-18 | 2018-06-12 | 中冶连铸技术工程有限责任公司 | A kind of hydraulic vibration device applied to multislab conticaster |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752784B (en) * | 2014-01-23 | 2017-01-18 | 中国重型机械研究院股份公司 | Hydraulic vibration system of small square billet or small circular billet continuous casting machine crystallizer |
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| WO2006002771A1 (en) * | 2004-07-06 | 2006-01-12 | Sms Demag Ag | Device for the support and oscillation of a continuous casting mould for casting liquid metal, particularly liquid steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108145102A (en) * | 2017-12-18 | 2018-06-12 | 中冶连铸技术工程有限责任公司 | A kind of hydraulic vibration device applied to multislab conticaster |
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