CN202021326U - Automatic roll gap regulation hydraulic system of square billet withdrawal and straightening unit - Google Patents
Automatic roll gap regulation hydraulic system of square billet withdrawal and straightening unit Download PDFInfo
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- CN202021326U CN202021326U CN2011200405512U CN201120040551U CN202021326U CN 202021326 U CN202021326 U CN 202021326U CN 2011200405512 U CN2011200405512 U CN 2011200405512U CN 201120040551 U CN201120040551 U CN 201120040551U CN 202021326 U CN202021326 U CN 202021326U
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- square billet
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Abstract
The utility model provides an automatic roll gap regulation hydraulic system of a square billet withdrawal and straightening unit, which comprises a static straightening hydraulic system, wherein the static straightening hydraulic system consists of a hydraulic cylinder, withdrawal and straightening rolls, an upper and a lower selection change valves, a hydraulic lock, a filter, an energy storage module and a pressure selection change valve, the automatic roll gap regulation hydraulic system of the square billet withdrawal and straightening unit also comprises a servo control hydraulic system, the servo control hydraulic system comprises a displacement sensor, an electro-hydraulic servo valve, a hydraulic control one-way valve and a mode selection change valve, the displacement sensor is installed on the hydraulic cylinder, the oil inlet and the oil outlet of the hydraulic cylinder are respectively connected with the oil outlet and the return opening of the electro-hydraulic servo valve, the hydraulic control one-way valve is installed on a pipeline between the hydraulic cylinder and the electro-hydraulic servo valve, and the mode selection change valve is connected with the hydraulic control one-way valve. The automatic roll gap regulation hydraulic system of the square billet withdrawal and straightening unit can quickly regulate the hydraulic flow according to the position of the hydraulic cylinder of the withdrawal and straightening unit, so the dimensional accuracy of the openness of the withdrawal and straightening unit is ensured, the roll gap value of the withdrawal and straightening unit is convenient to adjust on line, and the defect of the center of a casting blank is reduced.
Description
Technical field
The utility model relates to a kind of hydraulic system, particularly relates to the automatic regulator solution pressing system of square billet straightening machine roll gap.
Background technology
Along with modern continuous casting develops to direction at a high speed, strand does not solidify inside when aligning fully, be that strand will stand the liquid phase aligning, will make shear stress, tension, distortion and the deformation velocity of strand shell all reach dangerous peak value with traditional some aligning, so that make strand produce aligning crackle and central defect (particularly center segregation and center porosity defective).
How tame conticaster user confirms the use practice of gently depressing technology both at home and abroad, dynamically gently depressing technology is the effective means that solves strand central defect (particularly center segregation and center porosity defective), and just the control to straightening machine roll gap opening degree adjustability and stability is the key that solves the strand central defect.
And mostly existing square billet straightening machine roll gap opening degree control is static, after the roll gap opening degree of the machine of square billet straightening is just set, can not adjust automatically, the opening degree control accuracy is not high, and square billet is in cooling procedure, the opening degree to the roll gap of square billet straightening machine of different station requires different, makes square billet produce central defect easily.
Summary of the invention
The purpose of this utility model provides the automatic regulator solution pressing system of a kind of square billet straightening machine roll gap, this hydraulic system can be according to the position of straightening machine hydraulic cylinder, promptly regulate hydraulic flow, guarantee the dimensional accuracy of straightening machine opening degree, the gap values between rollers of online easily adjustment straightening machine reduces the strand central defect.
In order to achieve the above object, the automatic regulator solution pressing system of square billet straightening machine roll gap of the present utility model, comprise static aligning hydraulic system, static aligning hydraulic system is by hydraulic cylinder, the straightening roller, select reversal valve up and down, hydraulic lock, filter, accumulation of energy module and pressure select reversal valve to form, the oil-in of hydraulic cylinder is connected with oil return opening with selecting the reversal valve oil-out up and down respectively with oil-out, hydraulic lock is installed in hydraulic cylinder and selects up and down on the pipeline between the reversal valve, pressure is installed on the in-line of selecting reversal valve up and down selects reversal valve, pressure selects reversal valve to be connected with the accumulation of energy module, on the in-line of hydraulic cylinder and return line, filter is installed, the piston rod of hydraulic cylinder is connected with the straightening roller, it is characterized in that: also comprise the SERVO CONTROL hydraulic system;
The SERVO CONTROL hydraulic system is by displacement transducer, electrohydraulic servo valve, hydraulic control one-way valve and model selection reversal valve, displacement transducer is installed on the hydraulic cylinder, the oil-in of hydraulic cylinder is connected with oil return opening with the electrohydraulic servo valve oil-out respectively with oil-out, hydraulic control one-way valve is installed on the pipeline between hydraulic cylinder and the electrohydraulic servo valve, and the model selection reversal valve is connected with hydraulic control one-way valve.
Because the SERVO CONTROL hydraulic system has been arranged, the feedback signal of the displacement transducer on the hydraulic cylinder is compared with given signal in real time, dynamically adjust the input signal of electrohydraulic servo valve, realize dynamic position closed loop control, promptly regulate hydraulic flow, guarantee the dimensional accuracy of the opening degree of straightening machine, the gap values between rollers of online easily adjustment straightening machine can reduce the strand central defect.
Static aligning hydraulic system is a complete hydraulic system, and the oil-in of hydraulic cylinder is connected with oil return opening with SERVO CONTROL hydraulic system electrohydraulic servo valve oil-out respectively with oil-out, control by the model selection reversal valve, independent mutually between static aligning hydraulic system and the SERVO CONTROL hydraulic system, without interruption, both can select the static gap values between rollers of adjusting the straightening machine, also can select dynamically to adjust the gap values between rollers of straightening machine.
The automatic regulator solution pressing system of described square billet straightening machine roll gap is characterized in that: the automatic regulator solution pressing system of multichannel square billet straightening machine roll gap is installed on the same square billet straightening machine to be formed square billet and gently depresses hydraulic system.The hot base pressure setting module of the automatic regulator solution pressing system of each square billet straightening machine roll gap is set different hot base force value, can realize that the hot base pressure classification of multiple roll depresses, and improves the internal soundness of strand effectively.
Described accumulation of energy module is the storage power device that accumulator, safety overflow valve and stop valve are formed, and it can guarantee device security temporarily for system provides pressure when hydraulic pump or fluid pressure line break down.
Described hydraulic lock plays the locking oil circuit, makes hydraulic cylinder works stable.
The automatic regulator solution pressing system of square billet straightening machine roll gap of the present utility model, can promptly regulate hydraulic flow according to the position of straightening machine hydraulic cylinder, guarantee the dimensional accuracy of straightening machine opening degree, the gap values between rollers of online easily adjustment straightening machine reduces the strand central defect.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the light screwdown gear schematic diagram of the automatic regulator solution pressing system configuration of multichannel square billet straightening machine roll gap.
The specific embodiment
The explanation of Fig. 1 mark: model selection reversal valve 1, electrohydraulic servo valve 2, hydraulic control one-way valve 3, safety overflow valve 4, check valve 5, filter 6, accumulation of energy module 7, pressure sensor 8, cylinder side valve piece 9, displacement transducer 10, pressure-reducing valve 11, accumulator 13, pressure is selected reversal valve 14, selects reversal valve 15 up and down, one-way throttle valve 16, hydraulic lock 17, hydraulic cylinder 20, straightening roller 21, Pressure gauge 22, stop valve 23, static aligning hydraulic system 41, SERVO CONTROL hydraulic system 42.
The explanation of Fig. 2 mark: cooling line 19, square billet 24, hydraulic control module 25, support roller 26, position detecting module 27, master control cabinet 28 is gently depressed control module 29, casting flow control module 30, power unit 31.
Referring to Fig. 1, the embodiment of the automatic regulator solution pressing system of the utility model square billet straightening machine roll gap, comprise static aligning hydraulic system 41, static aligning hydraulic system 41 is by hydraulic cylinder 20, straightening roller 21, select reversal valve 15 up and down, hydraulic lock 17, filter 6, accumulation of energy module 7 and pressure select reversal valve 14 to form, the oil-in of hydraulic cylinder 20 is connected with oil return opening with selecting reversal valve 15 oil-outs up and down respectively with oil-out, hydraulic lock 17 is installed in hydraulic cylinder 20 and selects up and down on the pipeline between the reversal valve 15, pressure is installed on the in-line of selecting reversal valve 15 up and down selects reversal valve 14, pressure selects reversal valve 14 to be connected with accumulation of energy module 7, on the in-line of hydraulic cylinder 20 and return line, filter 6 is installed, the piston rod of hydraulic cylinder 20 is connected with straightening roller 21, also comprise SERVO CONTROL hydraulic system 42, SERVO CONTROL hydraulic system 42 is by displacement transducer 10, electrohydraulic servo valve 2, hydraulic control one-way valve 3 and model selection reversal valve 1, displacement transducer 10 is installed on the hydraulic cylinder 20, the oil-in of hydraulic cylinder 20 is connected with oil return opening with electrohydraulic servo valve 2 oil-outs respectively with oil-out, hydraulic control one-way valve 3 is installed on the pipeline between hydraulic cylinder 20 and the electrohydraulic servo valve 2, and model selection reversal valve 1 is connected with hydraulic control one-way valve 3.
Because SERVO CONTROL hydraulic system 42 has been arranged, the feedback signal of the displacement transducer 10 on the hydraulic cylinder 20 is compared with given signal in real time, dynamically adjust the input signal of electrohydraulic servo valve 2, realize dynamic position closed loop control, promptly regulate hydraulic flow, guarantee the dimensional accuracy of the opening degree of straightening machine, the gap values between rollers of online easily adjustment straightening machine can reduce the strand central defect.
Static aligning hydraulic system 41 is a complete hydraulic system, and the oil-in of hydraulic cylinder 20 is connected with oil return opening with SERVO CONTROL hydraulic system 42 electrohydraulic servo valves 2 oil-outs respectively with oil-out, control by model selection reversal valve 1, independent mutually between static aligning hydraulic system 41 and the SERVO CONTROL hydraulic system 42, without interruption, both can select the static gap values between rollers of adjusting the straightening machine, also can select dynamically to adjust the gap values between rollers of straightening machine.
In the pipeline of embodiment; safety overflow valve 4 and check valve 5 also are installed; when the rodless cavity pressure of straightening machine hydraulic cylinder 20 is increased to the certain pressure value suddenly owing to the interference that is subjected to external force; pressure oil from safety overflow valve 4 overflows to return line; protection straightening machine equipment, check valve 5 plays the repairing effect.
On two outlet oil circuits of hydraulic cylinder 20, respectively establish a pressure sensor 8, monitor the pressure of respective line respectively in real time, play the pressure alarm effect, the pressure monitoring signal difference of two oil circuits can be realized pressure feedback, make position closed loop have pressure compensation, improve system's dynamic quality; In addition, can calculate throwing power, be used for auxiliary control and technology reference according to force value.
Be provided with cylinder side valve piece 9 on hydraulic cylinder 20 sides, have two interfaces on the cylinder side valve piece 9, directly be connected, convenient dismounting when maintenance with the flexible pipe of pipeline.Cylinder side valve piece 9 is provided with a stop valve 23.Under the normal condition, this stop valve 23 is closed, and opens during flushing, makes flush loop use tube single.
Pressure gauge 22, pressure-reducing valve 11 and one-way throttle valve 16 also are installed on hydraulic circuit, and Pressure gauge 22 is used for display system pressure, conveniently watches; Pressure-reducing valve 11 and one-way throttle valve 16 are used for the pressure setting and guarantee that system pressure is stable.
Accumulation of energy module 7 is the storage power device that accumulator 13, safety overflow valve 4 and stop valve 23 are formed, and it can guarantee device security temporarily for system provides pressure when hydraulic pump or fluid pressure line break down.
Referring to Fig. 2, the automatic regulator solution pressing system of multichannel square billet straightening machine roll gap is installed on the same square billet straightening machine to be formed square billet and gently depresses hydraulic system.The hot base pressure setting module of the automatic regulator solution pressing system of each square billet straightening machine roll gap is set different hot base force value, can realize that the hot base pressure classification of multiple roll depresses, and improves the internal soundness of strand effectively.The square billet of embodiment is gently depressed hydraulic system and is comprised the automatic regulator solution pressing system of seven road square billet straightening machine roll gap, the automatic regulator solution pressing system of seven road square billet straightening machine roll gap is formed a hydraulic control module 25, square billet 24 is at hydraulic cylinder 20 times independently separately, square billet 24 belows have support roller 26 to support, seven displacement transducers 10 are formed a position detecting module 27, the motion of square billet 24 is by 30 controls of casting flow control module, pressing down of seven hydraulic cylinders 20 by gently depressing control module 29 controls, and 28 pairs of position detecting module 27 of master control cabinet and gently depress control module 29 and control, power unit 31 is powered to system, gently depress in the hydraulic system at square billet, also be provided with cooling line 19, compressed air is supplied with the protective cover of the displacement transducer 10 on the straightening machine hydraulic cylinder 20 by cooling line 19, make the air in the protective cover keep malleation, can prevent entering of steam and flue dust, and displacement transducer 10 is cooled off, make displacement transducer 10 be in good working environment, improve functional reliability.
The automatic regulator solution pressing system of square billet straightening machine roll gap of the present utility model, can be according to the position of straightening machine hydraulic cylinder 20, promptly regulate hydraulic flow, guarantee the dimensional accuracy of straightening machine opening degree, the gap values between rollers of online easily adjustment straightening machine, reduce the strand central defect, applying of it has positive meaning to the quality that improves square billet 24.
Claims (2)
1. the automatic regulator solution pressing system of square billet straightening machine roll gap, comprise static aligning hydraulic system, static aligning hydraulic system is by hydraulic cylinder, the straightening roller, select reversal valve up and down, hydraulic lock, filter, accumulation of energy module and pressure select reversal valve to form, the oil-in of hydraulic cylinder is connected with oil return opening with selecting the reversal valve oil-out up and down respectively with oil-out, hydraulic lock is installed in hydraulic cylinder and selects up and down on the pipeline between the reversal valve, pressure is installed on the in-line of selecting reversal valve up and down selects reversal valve, pressure selects reversal valve to be connected with the accumulation of energy module, on the in-line of hydraulic cylinder and return line, filter is installed, the piston rod of hydraulic cylinder is connected with the straightening roller, it is characterized in that: also comprise the SERVO CONTROL hydraulic system;
The SERVO CONTROL hydraulic system is by displacement transducer, electrohydraulic servo valve, hydraulic control one-way valve and model selection reversal valve, displacement transducer is installed on the hydraulic cylinder, the oil-in of hydraulic cylinder is connected with oil return opening with the electrohydraulic servo valve oil-out respectively with oil-out, hydraulic control one-way valve is installed on the pipeline between hydraulic cylinder and the electrohydraulic servo valve, and the model selection reversal valve is connected with hydraulic control one-way valve.
2. the automatic regulator solution pressing system of square billet straightening machine roll gap according to claim 1 is characterized in that: the automatic regulator solution pressing system of multichannel square billet straightening machine roll gap is installed on the same square billet straightening machine to be formed square billet and gently depresses hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200405512U CN202021326U (en) | 2011-02-17 | 2011-02-17 | Automatic roll gap regulation hydraulic system of square billet withdrawal and straightening unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200405512U CN202021326U (en) | 2011-02-17 | 2011-02-17 | Automatic roll gap regulation hydraulic system of square billet withdrawal and straightening unit |
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| CN202021326U true CN202021326U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200405512U Expired - Lifetime CN202021326U (en) | 2011-02-17 | 2011-02-17 | Automatic roll gap regulation hydraulic system of square billet withdrawal and straightening unit |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513358A (en) * | 2011-12-23 | 2012-06-27 | 太原重工股份有限公司 | Hydraulic control system of drum locking cylinder of hot rolled seamless steel tube perforator |
| CN103115028A (en) * | 2013-03-12 | 2013-05-22 | 北京机械设备研究所 | Electro-hydraulic servo actuator |
| CN103196412A (en) * | 2013-02-26 | 2013-07-10 | 中冶南方工程技术有限公司 | Monitor system for round casting blank surface indentation and non-circularity |
| CN103357671A (en) * | 2012-03-26 | 2013-10-23 | 苏州泰克诺机电有限公司 | Hydraulic system with pressure and flow adjustable in closed loop |
| CN104772445A (en) * | 2015-04-24 | 2015-07-15 | 中冶京诚工程技术有限公司 | Guide device for billet continuous casting machine and control method of billet continuous casting |
| CN104772187A (en) * | 2015-03-30 | 2015-07-15 | 南京梅山冶金发展有限公司 | Control method for automatic adjusting of roller gap of four-roller crusher |
| CN104832486A (en) * | 2015-05-14 | 2015-08-12 | 中国重型机械研究院股份公司 | Soft reduction hydraulic control device and soft reduction hydraulic control method for square (round) billet caster |
| CN105332958A (en) * | 2015-11-25 | 2016-02-17 | 上海电气液压气动有限公司 | Valve block device of plug oil cylinder |
| CN105508316A (en) * | 2014-09-26 | 2016-04-20 | 宝钢工程技术集团有限公司 | Hydraulic fault protection based hydraulic device for downwards pressing sector section and application method thereof |
| CN106337848A (en) * | 2016-09-26 | 2017-01-18 | 东洋重工机（大连）有限公司 | Hydraulic power unit |
| CN107008875A (en) * | 2017-04-12 | 2017-08-04 | 宣化钢铁集团有限责任公司 | The implementation method of billet caster double-mode |
| CN107630852A (en) * | 2017-08-31 | 2018-01-26 | 宣化钢铁集团有限责任公司 | A kind of method that straightening hydraulic control is realized using plug-in logical valve |
| CN108194447A (en) * | 2018-03-30 | 2018-06-22 | 宝钢工程技术集团有限公司 | The hydraulic system controlled for fan-shaped section under slab continuous casting weight |
| CN108453224A (en) * | 2017-02-22 | 2018-08-28 | 本钢板材股份有限公司 | A kind of rectangular bloom slighter compress antidote |
| CN110594210A (en) * | 2019-09-24 | 2019-12-20 | 中冶南方连铸技术工程有限责任公司 | Hydraulic control system for press roll of withdrawal and straightening machine based on position and pressure double-control mode |
-
2011
- 2011-02-17 CN CN2011200405512U patent/CN202021326U/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513358B (en) * | 2011-12-23 | 2014-03-19 | 太原重工股份有限公司 | Hydraulic control system of drum locking cylinder of hot rolled seamless steel tube perforator |
| CN102513358A (en) * | 2011-12-23 | 2012-06-27 | 太原重工股份有限公司 | Hydraulic control system of drum locking cylinder of hot rolled seamless steel tube perforator |
| CN103357671B (en) * | 2012-03-26 | 2015-06-17 | 苏州泰克诺机电有限公司 | Hydraulic system with pressure and flow adjustable in closed loop |
| CN103357671A (en) * | 2012-03-26 | 2013-10-23 | 苏州泰克诺机电有限公司 | Hydraulic system with pressure and flow adjustable in closed loop |
| CN103196412B (en) * | 2013-02-26 | 2016-03-30 | 中冶南方工程技术有限公司 | A kind of circle casting billet surface impression and out-of-roundness monitoring system |
| CN103196412A (en) * | 2013-02-26 | 2013-07-10 | 中冶南方工程技术有限公司 | Monitor system for round casting blank surface indentation and non-circularity |
| CN103115028A (en) * | 2013-03-12 | 2013-05-22 | 北京机械设备研究所 | Electro-hydraulic servo actuator |
| CN105508316B (en) * | 2014-09-26 | 2017-08-25 | 宝钢工程技术集团有限公司 | The fan-shaped section pressure hydraulic means and its application method protected based on hydraulic fault |
| CN105508316A (en) * | 2014-09-26 | 2016-04-20 | 宝钢工程技术集团有限公司 | Hydraulic fault protection based hydraulic device for downwards pressing sector section and application method thereof |
| CN104772187A (en) * | 2015-03-30 | 2015-07-15 | 南京梅山冶金发展有限公司 | Control method for automatic adjusting of roller gap of four-roller crusher |
| CN104772445A (en) * | 2015-04-24 | 2015-07-15 | 中冶京诚工程技术有限公司 | Guide device for billet continuous casting machine and control method of billet continuous casting |
| CN104832486A (en) * | 2015-05-14 | 2015-08-12 | 中国重型机械研究院股份公司 | Soft reduction hydraulic control device and soft reduction hydraulic control method for square (round) billet caster |
| CN105332958A (en) * | 2015-11-25 | 2016-02-17 | 上海电气液压气动有限公司 | Valve block device of plug oil cylinder |
| CN106337848A (en) * | 2016-09-26 | 2017-01-18 | 东洋重工机（大连）有限公司 | Hydraulic power unit |
| CN108453224A (en) * | 2017-02-22 | 2018-08-28 | 本钢板材股份有限公司 | A kind of rectangular bloom slighter compress antidote |
| CN107008875A (en) * | 2017-04-12 | 2017-08-04 | 宣化钢铁集团有限责任公司 | The implementation method of billet caster double-mode |
| CN107630852A (en) * | 2017-08-31 | 2018-01-26 | 宣化钢铁集团有限责任公司 | A kind of method that straightening hydraulic control is realized using plug-in logical valve |
| CN108194447A (en) * | 2018-03-30 | 2018-06-22 | 宝钢工程技术集团有限公司 | The hydraulic system controlled for fan-shaped section under slab continuous casting weight |
| CN110594210A (en) * | 2019-09-24 | 2019-12-20 | 中冶南方连铸技术工程有限责任公司 | Hydraulic control system for press roll of withdrawal and straightening machine based on position and pressure double-control mode |
| CN110594210B (en) * | 2019-09-24 | 2021-08-24 | 中冶南方连铸技术工程有限责任公司 | Hydraulic control system for press roll of withdrawal and straightening machine based on position and pressure double-control mode |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |