CN106402055A - Hydraulic system of coil stripping car - Google Patents
Hydraulic system of coil stripping car Download PDFInfo
- Publication number
- CN106402055A CN106402055A CN201610731765.1A CN201610731765A CN106402055A CN 106402055 A CN106402055 A CN 106402055A CN 201610731765 A CN201610731765 A CN 201610731765A CN 106402055 A CN106402055 A CN 106402055A
- Authority
- CN
- China
- Prior art keywords
- valve
- elevating ram
- hydraulic
- pressure
- hydraulic control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
-
- 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
- F15B21/08—Servomotor systems incorporating electrically operated control means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic system of a coil stripping car and belongs to the technical field of steel-making equipment. The system comprises a lifting oil cylinder arranged at the bottom of the coil stripping car, wherein a first hydraulic control reversal valve is arranged between the lifting oil cylinder and a pressure oil source; a balance valve is arranged between a rodless cavity of the lifting oil cylinder and the first hydraulic control reversal valve; a control end of the balance valve is connected with a rod cavity of the lifting oil cylinder; a third hydraulic control lock and a second overflow valve are sequentially connected between the rodless cavity of the lifting oil cylinder and an oil return end of the pressure oil source; a control end of the third hydraulic control lock is connected with a solenoid control valve; and a pressure sensor is connected between the rodless cavity of the lifting oil cylinder and the third hydraulic control lock. The hydraulic system can solve the problems of low feedback sensitivity of the pressure sensor to the pressure change of the lifting oil cylinder, and crush damage and interlayer adhesion damage of an inner race and an outer race of a coil due to pressure fluctuation of the hydraulic system in the existing hydraulic system of the coil stripping car.
Description
Technical field
The present invention relates to steelmaking equipment technical field, especially a kind of hydraulic control system for coil stripping car.
Background technology
Coil stripping car is to draw off coil of strip from coiling machine and be transported to the equipment deposited on step rate, including the mistake unloading volume
Journey.A kind of Hydraulic System of Coil Stripper Car as shown in Figure 1, including the elevating ram 17 located at coil stripping car bottom, elevating ram
17 pass through two its fuel feeding of Zhi Luxiang, and one of them is connected with pressure oil-source 11 by the first pilot operated directional control valve 12；Another
Elevating ram 17 rodless cavity is connected with choke valve 131 and the second hydraulic control lock 132 to the second pilot operated directional control valve 133 in turn,
It is provided with the first overflow valve 134 between second pilot operated directional control valve 133 and pressure oil-source；In elevating ram 17 rodless cavity and the first hydraulic control
It is provided with balanced valve 16, the control end of balanced valve 16 is connected with elevating ram 17 rod chamber between reversal valve 12；In balanced valve 16
It is connected with pressure transducer 18 and the first pilot operated directional control valve 121 between, pressure transducer 18 is electrically connected with the controller.Before unloading volume,
To coiling machine, now the first pilot operated directional control valve 121 is operated in right position for coil stripping car movement, so that elevating ram 17 is quickly risen
To pre- tactile volume position；When unloading volume, controller controls coil stripping car to enter tactile volume pattern, and now, the second pilot operated directional control valve 133 is operated in
Right position, hydraulic oil enters elevating ram 17 through overflow valve 134, the second hydraulic control lock 132 and choke valve 131 through balanced valve 16,
Elevating ram 17 slowly rises from pre- tactile volume position, drives coil stripping car to touch coil of strip bottom surface, now, pressure transducer 18 senses
To controller, when reaching setting contact pressure, controller controls the second hydraulic control lock 132 cut-out pressures oil to supply to real time pressure information
Give, complete to touch volume pattern；But, this Hydraulic System of Coil Stripper Car, because pressure transducer 18 is connected on balanced valve 16 and first
Between pilot operated directional control valve 121, and, after tactile volume Pattern completion, balanced valve is closed, and pressure oil is maintained at elevating ram
In cannot effectively discharge, thus cause system pressure itself fluctuate；Therefore there is problems with：1st, pressure transducer is to lifting
The sensitivity of oil cylinder working-pressure change feedback is low, the accuracy of impact induction pressure value；2nd, the unstable coiled material causing of system pressure
The crush injury of inner ring and outer ring and interlayer glue wound, thus reducing the problem of finished surface quality.
Content of the invention
The technical problem to be solved is to provide a kind of Hydraulic System of Coil Stripper Car, and this system can solve existing
Pressure transducer with the presence of Hydraulic System of Coil Stripper Car is low to the sensitivity of elevating ram pressure change feedback and hydraulic pressure system
System pressure itself fluctuation causes the crush injury of coiled material inner ring and outer ring and interlayer to glue the problem of wound.
In order to solve the above problems, the technical solution adopted in the present invention is：This Hydraulic System of Coil Stripper Car, including setting
It is placed in the elevating ram of coil stripping car bottom, between described elevating ram and pressure oil-source, be provided with the first pilot operated directional control valve, described
It is provided with balanced valve, the control end of described balanced valve and elevating ram between elevating ram rodless cavity and described first pilot operated directional control valve
Rod chamber be connected it is characterised in that：Described elevating ram rodless cavity is connected with turn to described pressure oil-source oil revolving end
3rd hydraulic control lock and the second overflow valve, the control end of described 3rd hydraulic control lock is connected with solenoid electric valve, described elevating ram
It is connected with pressure transducer between rodless cavity and described 3rd hydraulic control lock.
In technique scheme, more specifically technical scheme can also be：Described elevating ram and described pressure oil-source it
Between be provided with the second pilot operated directional control valve, be connected with throttling in turn between described elevating ram rodless cavity and described second pilot operated directional control valve
Valve and the second hydraulic control lock, are provided with the first overflow valve between described second pilot operated directional control valve and pressure oil-source of this branch road；Described
One control end of the second hydraulic control lock is connected with described pressure oil-source, and another is connected with described elevating ram rod chamber.
Further：It is provided with the first hydraulic control lock, described first liquid between described balanced valve and described first pilot operated directional control valve
The control end of control lock is connected with described elevating ram rod chamber.
Due to employing technique scheme, the present invention compared with prior art has the advantages that：
Because pressure transducer is between elevating ram rodless cavity and described 3rd hydraulic control lock, and, elevating ram rodless cavity
It is connected with the 3rd hydraulic control lock and the second overflow valve, the control end of the 3rd hydraulic control lock and electromagnetism in turn to pressure oil-source oil revolving end
Control valve is connected；When unloading volume, elevating ram 7 slowly rises from pre- tactile volume position, and system pressure constantly rises, and meanwhile, pressure passes
This pressure value of sensor real-time detection rises information transmission to controller, when the pressure value information size of pressure transducer detection controls
During device preset value, controller controls electromagnetic switch valve core to move to right, the 3rd hydraulic control lock conducting；Second overflow valve access system, puts down
The pressure stability function of weighing apparatus valve is opened；So after system pressure reaches the second overflow valve preset value, no longer change, until touching volume
Pattern terminates；During this, the impact to pressure transducer for the pressure drop is little, and the pressure value of sensor detection is true, reliability, and
And the pressure oil in elevating ram, without balanced valve, is discharged by the second overflow valve；The pressure of system has been effectively ensured
Power is steady, thus avoiding coiled material inner ring and outer ring generation extruding, thus ensure that the quality of coiled material finished surface.
Brief description
Fig. 1 is the hydraulic schematic diagram of existing Hydraulic System of Coil Stripper Car.
Fig. 2 is the hydraulic schematic diagram of the embodiment of the present invention.
Specific embodiment
The invention will be further described for embodiment below in conjunction with the accompanying drawings：
Hydraulic System of Coil Stripper Car shown in Fig. 2, including the elevating ram 7 located at coil stripping car bottom, elevating ram 7 passes through two
Its fuel feeding of individual Zhi Luxiang, one of branch road is connected with pressure oil-source 1 by the first pilot operated directional control valve 22, elevating ram 7 no bar
Chamber is provided with the first hydraulic control lock 21 to the first pilot operated directional control valve 22, and the control end of the first hydraulic control lock 21 has bar with elevating ram 7
Chamber is connected；Another branch road is provided with the second pilot operated directional control valve 33, elevating ram 7 rodless cavity to the second pilot operated directional control valve 33 it
Between be connected with turn choke valve 31 and the second hydraulic control lock 32, between second pilot operated directional control valve 33 and pressure oil-source 1 of this branch road
It is provided with the first overflow valve 34, a control end of the second hydraulic control lock 32 is connected with pressure oil-source 1, another and elevating ram 7
Rod chamber is connected；It is provided with balanced valve 9, the control end of balanced valve 9 and act between elevating ram 7 rodless cavity and the first hydraulic control lock 21
Oil-lifting jar 7 rod chamber is connected；Elevating ram 7 rodless cavity is connected with the 3rd hydraulic control lock to pressure oil-source 1 oil revolving end in turn
10 and second overflow valve 11, the control end of the 3rd hydraulic control lock 10 is connected with pressure oil-source 1 by solenoid electric valve 12；Lifting oil
It is connected with pressure transducer 8, electromagnetic valve 12 and sensor 8 are electrically connected with the controller between cylinder 7 rodless cavity and the 3rd hydraulic control lock 10.
Before unloading volume operation, below coil stripping car movement to coiling machine, now, the first pilot operated directional control valve 22 is operated in right position,
First hydraulic control lock 21 conducting, pressure oil, through balanced valve 7, makes elevating ram 7 be quickly ramped up to pre- tactile volume position；When unloading volume, lifting oil
Cylinder 7 slowly rises from pre- tactile volume position, and system pressure constantly rises, and now, controller controls solenoid directional control valve 12 valve element to move to right, the
Three hydraulic control lock 10 conducting；Second overflow valve 11 access system, the pressure stability function of balanced valve 9 is opened；So work as system pressure
After reaching the second overflow valve 11 preset value, no longer change, terminate until touching volume pattern；During this, pressure drop is to pressure sensing
The impact of device 8 is little, and the pressure value of pressure transducer 8 detection is true, reliability, and the pressure oil in elevating ram is without flat
Weighing apparatus valve, is discharged by the second overflow valve 11；The pressure of system has been effectively ensured steadily, thus avoid coiled material inner ring and
Outer ring produces extruding, thus ensure that the quality of coiled material finished surface.
After unloading end of volume (EOV), coil stripping car moves to step rate and unreels station, and controller controls lifting oil by tie point
Cylinder 7 is placed on volume on station according to setting program.
Claims (3)
1. a kind of Hydraulic System of Coil Stripper Car, including the elevating ram being arranged at coil stripping car bottom, described elevating ram and pressure
It is provided with the first pilot operated directional control valve between power oil sources, be provided with flat between described elevating ram rodless cavity and described first pilot operated directional control valve
Weighing apparatus valve, the control end of described balanced valve be connected with elevating ram rod chamber it is characterised in that：Described elevating ram rodless cavity is extremely
It is connected with the 3rd hydraulic control lock and the second overflow valve, the control end of described 3rd hydraulic control lock in turn between described pressure oil-source oil revolving end
It is connected with solenoid electric valve, between described elevating ram rodless cavity and described 3rd hydraulic control lock, be connected with pressure transducer.
2. Hydraulic System of Coil Stripper Car according to claim 1 it is characterised in that：Described elevating ram and described pressure oil
It is provided with the second pilot operated directional control valve between source, be connected with turn between described elevating ram rodless cavity and described second pilot operated directional control valve
Choke valve and the second hydraulic control lock, are provided with the first overflow valve between described second pilot operated directional control valve and pressure oil-source of this branch road；
One control end of described second hydraulic control lock is connected with described pressure oil-source, and another is connected with described elevating ram rod chamber
Logical.
3. Hydraulic System of Coil Stripper Car according to claim 1 and 2 it is characterised in that：Described balanced valve and described first
It is provided with the first hydraulic control lock, the control end of described first hydraulic control lock is connected with described elevating ram rod chamber between pilot operated directional control valve
Logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731765.1A CN106402055A (en) | 2016-08-26 | 2016-08-26 | Hydraulic system of coil stripping car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731765.1A CN106402055A (en) | 2016-08-26 | 2016-08-26 | Hydraulic system of coil stripping car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402055A true CN106402055A (en) | 2017-02-15 |
Family
ID=58004866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610731765.1A Pending CN106402055A (en) | 2016-08-26 | 2016-08-26 | Hydraulic system of coil stripping car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402055A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131169A (en) * | 2017-06-26 | 2017-09-05 | 北京京诚之星科技开发有限公司 | Movable support rotating hydraulic control loop of coiling machine |
| CN108772423A (en) * | 2018-05-25 | 2018-11-09 | 中铝瑞闽股份有限公司 | A kind of control method for eliminating band tail portion pallet print |
| CN110520633A (en) * | 2017-04-07 | 2019-11-29 | Smc株式会社 | Booster |
| CN114251315A (en) * | 2021-11-30 | 2022-03-29 | 重庆邮电大学 | Hydraulic control loop of steel coil unloading vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1530102A (en) * | 1976-02-03 | 1978-10-25 | Hoogovens Ijmuiden Bv | Control of driving means |
| JPS55166507A (en) * | 1979-06-15 | 1980-12-25 | Hitachi Constr Mach Co Ltd | Circuit for hydraulically movable device |
| CN203627356U (en) * | 2013-12-16 | 2014-06-04 | 山东能源机械集团乾元不锈钢制造有限公司 | Speed control device for steel coil trolley |
| CN104047934A (en) * | 2013-03-15 | 2014-09-17 | 宝钢工业炉工程技术有限公司 | Potential energy recovery system of lifting equipment and matching method during load continuous change |
| CN204299999U (en) * | 2014-11-19 | 2015-04-29 | 武汉钢铁(集团)公司 | A kind of redundant system controlled for coiling clamp roller back pressure |
| CN204664030U (en) * | 2015-05-13 | 2015-09-23 | 宁波钢铁有限公司 | A kind of hydraulic control architectures improving lift stable operation |
| CN205064412U (en) * | 2014-12-29 | 2016-03-02 | 唐山学院 | Novel traffic zone walking beam lift drive hydraulic system |
| CN205977844U (en) * | 2016-08-26 | 2017-02-22 | 广西柳州银海铝业股份有限公司 | Coil stripping trolley hydraulic system |
-
2016
- 2016-08-26 CN CN201610731765.1A patent/CN106402055A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1530102A (en) * | 1976-02-03 | 1978-10-25 | Hoogovens Ijmuiden Bv | Control of driving means |
| JPS55166507A (en) * | 1979-06-15 | 1980-12-25 | Hitachi Constr Mach Co Ltd | Circuit for hydraulically movable device |
| CN104047934A (en) * | 2013-03-15 | 2014-09-17 | 宝钢工业炉工程技术有限公司 | Potential energy recovery system of lifting equipment and matching method during load continuous change |
| CN203627356U (en) * | 2013-12-16 | 2014-06-04 | 山东能源机械集团乾元不锈钢制造有限公司 | Speed control device for steel coil trolley |
| CN204299999U (en) * | 2014-11-19 | 2015-04-29 | 武汉钢铁(集团)公司 | A kind of redundant system controlled for coiling clamp roller back pressure |
| CN205064412U (en) * | 2014-12-29 | 2016-03-02 | 唐山学院 | Novel traffic zone walking beam lift drive hydraulic system |
| CN204664030U (en) * | 2015-05-13 | 2015-09-23 | 宁波钢铁有限公司 | A kind of hydraulic control architectures improving lift stable operation |
| CN205977844U (en) * | 2016-08-26 | 2017-02-22 | 广西柳州银海铝业股份有限公司 | Coil stripping trolley hydraulic system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110520633A (en) * | 2017-04-07 | 2019-11-29 | Smc株式会社 | Booster |
| US10876550B2 (en) | 2017-04-07 | 2020-12-29 | Smc Corporation | Pressure booster |
| CN107131169A (en) * | 2017-06-26 | 2017-09-05 | 北京京诚之星科技开发有限公司 | Movable support rotating hydraulic control loop of coiling machine |
| CN107131169B (en) * | 2017-06-26 | 2019-07-26 | 北京京诚之星科技开发有限公司 | Movable support rotating hydraulic control loop of coiling machine |
| CN108772423A (en) * | 2018-05-25 | 2018-11-09 | 中铝瑞闽股份有限公司 | A kind of control method for eliminating band tail portion pallet print |
| CN114251315A (en) * | 2021-11-30 | 2022-03-29 | 重庆邮电大学 | Hydraulic control loop of steel coil unloading vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106402055A (en) | Hydraulic system of coil stripping car | |
| CN103615436B (en) | Steel tube straightening machine numerical control electrohydraulic ratio system | |
| US8616263B2 (en) | Molding machine and molding process | |
| CN205977844U (en) | Coil stripping trolley hydraulic system | |
| CN204842477U (en) | Case pinch roll lift hydraulic circuit is rolled up to heat | |
| CN102407238B (en) | Hydraulic control loop for ironing roller device | |
| CN203161129U (en) | Intelligent control device for coiled tubing operation machine | |
| CN100507324C (en) | Great flow rate proportional water valve | |
| CN107135607A (en) | Boring method, system, device and the computer-readable storage medium of pcb board | |
| CN207500226U (en) | Efficient tile press hydraulic control system | |
| CN203894648U (en) | Servo-motor-driving remote pressure-regulating device for borehole pumps | |
| CN102829676B (en) | Gunpowder pressing system | |
| CN103994120B (en) | A kind of hydraulic support passes cylinder control device and controlling method thereof | |
| CN204431680U (en) | A kind of Intelligent injection machine | |
| CN105974878A (en) | Packer control system | |
| CN103794002B (en) | Toothpaste sale apparatus in bulk | |
| CN103778721B (en) | Toothpaste vending machine in bulk | |
| CN202387725U (en) | Hydraulic control loop of ironing roller device | |
| CN203385870U (en) | Detection in-place apparatus | |
| CN101907875B (en) | Digital control system for hydraulic spreading machine | |
| CN109624386B (en) | Servo control system of 500-ton four-column hydraulic press | |
| CN208483938U (en) | A kind of Full-automatic stephanoporate diameter punching apparatus | |
| CN103909426B (en) | Platen F.F. is changed a job into control method | |
| CN206911959U (en) | A kind of discharging device for hot extrusion molding seamless gas cylinder | |
| CN205949567U (en) | Two roller edge rollings of hydraulic pressure machine based on linear displacement sensor control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |