CN202100542U - Hydraulic synchronous control device - Google Patents
Hydraulic synchronous control device Download PDFInfo
- Publication number
- CN202100542U CN202100542U CN201120169109XU CN201120169109U CN202100542U CN 202100542 U CN202100542 U CN 202100542U CN 201120169109X U CN201120169109X U CN 201120169109XU CN 201120169109 U CN201120169109 U CN 201120169109U CN 202100542 U CN202100542 U CN 202100542U
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- hoist cylinder
- way solenoid
- control unit
- valve
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
A hydraulic synchronous control device comprises a detecting unit, an electrical control unit and a hydraulic control unit. The detecting unit is composed of four displacement sensors arranged on four lifting cylinders. The hydraulic control unit comprises a speed regulating valve, a main-path solenoid valve and four branching solenoid valves. The four branching solenoid valves are respectively communicated to the rodless cavities of the lifting cylinders through check valves. Rod cavities of the lifting cylinders are connected to an oil returning pipeline through pipelines. The displacement sensors are connected with the electrical control unit through cables, and the electrical control unit is respectively connected with the main-path solenoid valve and each branching solenoid valve. A dynamic close loop control system is formed by the displacement sensors and the solenoid valves during lifting and descending process of a middle tank car, so the real-time position of the cylinder can be dynamically kept within an allowed error range. Therefore, the middle tank car can achieve synchronous control and displace compensation functions under long-time loading, static and dynamic conditions. The hydraulic synchronous control device has the advantages of being low in cost, fault rate and maintenance cost and the like.
Description
Technical field
The utility model relates to the intermediate tundish carriage Hydraulic Synchronizing control technique field of steelmaking equipment, is specifically related to a kind of Hydraulic Synchronizing control gear.
Background technique
The intermediate tundish carriage Hydraulic Synchronizing control loop of steelmaking equipment is made up of lazy-tongs and synchronous control unit at present; The synchronization accuracy of this hydraulic control circuit is guaranteed by lazy-tongs; And just there is the machining accuracy error in lazy-tongs itself; And in the rise and fall process, also have cumulative error, remove optional " making zero " otherwise be difficult to and eliminate; The hydraulic pressure components and parts of synchronous control unit for a long time can occur leaking in the steel pouring process in addition, and above-mentioned two kinds of factor effects cause intermediate tundish carriage in long-time static and dynamic process, to occur crooked and then have a strong impact on the problem of the normal cast of casting machine.
Summary of the invention
In order to overcome the shortcoming of above-mentioned existing technology; The purpose of the utility model is to provide a kind of Hydraulic Synchronizing control gear; Can satisfy intermediate tundish carriage and all can realize the purpose of synchronization control and position compensation function in long-time load condition and when quiet, dynamic, have the advantage that cost is low, rate of fault is low, maintenance cost is low.
In order to achieve the above object, the technological scheme taked of the utility model is:
A kind of Hydraulic Synchronizing control gear comprises detection unit, hydraulic control unit and electric control unit,
Detection unit is formed by being positioned at the first displacement transducer 3-1 on first hoist cylinder 1, the second displacement transducer 3-2 on second hoist cylinder 2, triple motion sensor 3-3 and the 4th displacement transducer 3-4 on the 4th hoist cylinder 4 on the 3rd hoist cylinder 3
Hydraulic control unit comprises series flow control valve 1-1; Pressure oil circuit P is communicated with series flow control valve 1-1, total way solenoid valve 2-1 through pipeline; Total way solenoid valve 2-1 is communicated with first fen way solenoid valve 2-2, second fen way solenoid valve 2-3, the 3rd fen way solenoid valve 2-4, the 4th fen way solenoid valve 2-5 through the asphalt channel in the valve piece again; First fen way solenoid valve 2-2 is communicated to the rodless cavity of first hoist cylinder 1 through hydraulic tubing and through the first one-way valve 4-1, and the rod chamber of first hoist cylinder 1 is connected on the oil returning tube T through pipeline; Second fen way solenoid valve 2-3 is communicated to the rodless cavity of second hoist cylinder 2 through hydraulic tubing and through the second one-way valve 4-2, and the rod chamber of second hoist cylinder 2 is connected on the oil returning tube T through pipeline; The 3rd fen way solenoid valve 2-4 is communicated to the rodless cavity of the 3rd hoist cylinder 3 through hydraulic tubing and through the 3rd one-way valve 4-3, and the rod chamber of the 3rd hoist cylinder 3 is connected on the oil returning tube T through pipeline; The 4th fen way solenoid valve 2-5 is communicated to the rodless cavity of the 4th hoist cylinder 4 through hydraulic tubing and through the 4th one-way valve 4-4, and the rod chamber of the 4th hoist cylinder 4 is connected on the oil returning tube T through pipeline,
The signal output part of the first displacement transducer 3-1, the second displacement transducer 3-2, triple motion sensor 3-3 and the 4th displacement transducer 3-4 displacement transducer is connected through branch's input end of cable and electric control unit 5-1, the control output end of electric control unit 5-1 respectively with hydraulic control unit in total way solenoid valve 2-1, each minute way solenoid valve the electrical control end be connected.
The utility model has the advantages that:
I. on the element type selecting, adopt cheap solenoid valve, rather than expensive servovalve or Proportional valve, provide cost savings.
II. compare servovalve and Proportional valve is high to system oil product required precision, and the characteristics that rate of fault is high adopt solenoid valve low to system's oil product required precision, relatively also low many of rate of fault, also low many of the high equipment maintenance cost of reliability.
III. when bucking-out system broke down, need not stop casting only needing throttle valve 1-1 is turned off, and utilizes original hydraulic synchronous system to work on, and does not influence the ordinary production of casting machine.
IV. the purpose that designs total way solenoid valve be prevent each minute way solenoid valve when repairing reaches claimed range because foreign matter jam and can not effectively close the time, total way solenoid valve positive closing protection equipment prevents the reliability of dangerous raising system.
V. through being arranged in the displacement transducer on the oil cylinder, some solenoid valves; Displacement transducer and solenoid valve are formed the Dynamic Closed Loop Control system in intermediate tundish carriage rising, decline process; The real-time displacement of oil cylinder is dynamically remained within the margin of error of a permission, thoroughly solve the skew problem of intermediate tundish carriage.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the fundamental diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description.
With reference to Fig. 1, a kind of Hydraulic Synchronizing control gear comprises detection unit, electric control unit and hydraulic control unit,
Detection unit is formed by being positioned at the first displacement transducer 3-1 on first hoist cylinder 1, the second displacement transducer 3-2 on second hoist cylinder 2, triple motion sensor 3-3 and the 4th displacement transducer 3-4 on the 4th hoist cylinder 4 on the 3rd hoist cylinder 3
Hydraulic control unit comprises series flow control valve 1-1; Pressure oil circuit P is communicated with series flow control valve 1-1, total way solenoid valve 2-1 through pipeline; Total way solenoid valve 2-1 is communicated with first fen way solenoid valve 2-2, second fen way solenoid valve 2-3, the 3rd fen way solenoid valve 2-4, the 4th fen way solenoid valve 2-5 through the asphalt channel in the valve piece again; First fen way solenoid valve 2-2 is communicated to the rodless cavity of first hoist cylinder 1 through hydraulic tubing and through the first one-way valve 4-1, and the rod chamber of first hoist cylinder 1 is connected on the oil returning tube T through pipeline; Second fen way solenoid valve 2-3 is communicated to the rodless cavity of second hoist cylinder 2 through hydraulic tubing and through the second one-way valve 4-2, and the rod chamber of second hoist cylinder 2 is connected on the oil returning tube T through pipeline; The 3rd fen way solenoid valve 2-4 is communicated to the rodless cavity of the 3rd hoist cylinder 3 through hydraulic tubing and through the 3rd one-way valve 4-3, and the rod chamber of the 3rd hoist cylinder 3 is connected on the oil returning tube T through pipeline; The 4th fen way solenoid valve 2-5 is communicated to the rodless cavity of the 4th hoist cylinder 4 through hydraulic tubing and through the 4th one-way valve 4-4; The rod chamber of the 4th hoist cylinder 4 is connected on the oil returning tube T through pipeline; The first one-way valve 4-1, the second one-way valve 4-2, the 3rd one-way valve 4-3 and the 4th one-way valve 4-4 prevent that corresponding four lifting jar from causing that at the pipeline cracking heavily bag is fallen off
The signal output part of the first displacement transducer 3-1, the second displacement transducer 3-2, triple motion sensor 3-3 and the 4th displacement transducer 3-4 displacement transducer is connected through branch's input end of cable and electric control unit 5-1, the control output end of electric control unit 5-1 respectively with hydraulic control unit in total way solenoid valve 2-1, each minute way solenoid valve the electrical control end be connected.
The working principle of the utility model is:
With reference to Fig. 2, when middle tank car rose, four hoist cylinders rose under the effect of synchronous control unit synchronously; Because synchronous control unit and hoist cylinder itself exist difference in volume and interior the leakage, so in uphill process, unavoidably have height difference between four hoist cylinders, this moment, four displacement transducers can detect the displacement of four hoist cylinders in real time; And signal is input to electric control unit 5-1; Electric control unit 5-1 compares the displacement signal that collects and finds out displacement the maximum in four hoist cylinders, and calculates the difference Δ s of other three hoist cylinder displacements and maximum hoist cylinder displacement, if 1 or 2 to 3 and maximum hoist cylinder displacement difference Δ s are greater than setting process value δ in three hoist cylinders; Then total way solenoid valve 2-1 gets; In the branch way solenoid valve of the corresponding hoist cylinder oil mass compensation that needs repairing certain 1 or 3 electric carry out the oil mass compensation up to displacement difference Δ s less than technique initialization value δ, then total way solenoid valve 2-1 dead electricity, the oil mass compensation of the hoist cylinder of corresponding repairing divides in the way solenoid valve certain 1 or 3 also dead electricity; Repairing finishes; When middle tank car descended, its compensation principle was with the rising process, was still in certain position when beginning to cast for a long time when middle tank car in addition; Owing to let out in hoist cylinder and the related fluid casting die; Hoist cylinder also can occur crooked, this moment flow-compensated system also can repeat above-mentioned flow-compensated up to making four displacement difference Δ s between the hoist cylinder less than technique initialization value δ, then total way solenoid valve 2-1 dead electricity; The compensation of the oil mass of the hoist cylinder of corresponding repairing divides in the way solenoid valve certain 1 or 3 also dead electricity, and repairing finishes.
Claims (1)
1. a Hydraulic Synchronizing control gear comprises detection unit, hydraulic control unit and electric control unit, it is characterized in that:
Detection unit is formed by being positioned at first displacement transducer (3-1) on first hoist cylinder (1), second displacement transducer (3-2) on second hoist cylinder (2), triple motion sensor (3-3) and the 4th displacement transducer (3-4) on the 4th hoist cylinder (4) on the 3rd hoist cylinder (3)
Hydraulic control unit comprises series flow control valve (1-1); Pressure oil circuit (P) is communicated with series flow control valve (1-1), total way solenoid valve (2-1) through pipeline; Total way solenoid valve (2-1) again through the asphalt channel in the valve piece and first fen way solenoid valve (2-2), second fen way solenoid valve (2-3), the 3rd fen way solenoid valve (2-4), the 4th minute way solenoid valve (2-5) be communicated with; First minute way solenoid valve (2-2) be communicated to the rodless cavity of first hoist cylinder (1) through hydraulic tubing and through first one-way valve (4-1), the rod chamber of first hoist cylinder (1) is connected on the oil returning tube (T) through pipeline; Second minute way solenoid valve (2-3) be communicated to the rodless cavity of second hoist cylinder (2) through hydraulic tubing and through second one-way valve (4-2), the rod chamber of second hoist cylinder (2) is connected on the oil returning tube (T) through pipeline; The 3rd minute way solenoid valve (2-4) be communicated to the rodless cavity of the 3rd hoist cylinder (3) through hydraulic tubing and through the 3rd one-way valve (4-3), the rod chamber of the 3rd hoist cylinder (3) is connected on the oil returning tube (T) through pipeline; The 4th minute way solenoid valve (2-5) be communicated to the rodless cavity of the 4th hoist cylinder (4) through hydraulic tubing and through the 4th one-way valve (4-4), the rod chamber of the 4th hoist cylinder (4) is connected on the oil returning tube (T) through pipeline,
The signal output part of first displacement transducer (3-1), second displacement transducer (3-2), triple motion sensor (3-3) and the 4th displacement transducer (3-4) displacement transducer is connected through branch's input end of cable with electric control unit (5-1), the control output end of electric control unit (5-1) respectively with hydraulic control unit in total way solenoid valve (2-1), each minute way solenoid valve the electrical control end be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120169109XU CN202100542U (en) | 2011-05-24 | 2011-05-24 | Hydraulic synchronous control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120169109XU CN202100542U (en) | 2011-05-24 | 2011-05-24 | Hydraulic synchronous control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100542U true CN202100542U (en) | 2012-01-04 |
Family
ID=45386557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120169109XU Expired - Fee Related CN202100542U (en) | 2011-05-24 | 2011-05-24 | Hydraulic synchronous control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100542U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192206A (en) * | 2011-05-24 | 2011-09-21 | 中国重型机械研究院有限公司 | Hydraulic dynamic synchronization control and position compensation system |
| CN102758806A (en) * | 2012-07-18 | 2012-10-31 | 天津市天锻压力机有限公司 | Crossbeam press multi-hydraulic cushion synchronous control system |
| CN105174062A (en) * | 2015-10-19 | 2015-12-23 | 中联重科股份有限公司 | Multi-cylinder jacking synchronous control system, method and device and tower crane |
-
2011
- 2011-05-24 CN CN201120169109XU patent/CN202100542U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192206A (en) * | 2011-05-24 | 2011-09-21 | 中国重型机械研究院有限公司 | Hydraulic dynamic synchronization control and position compensation system |
| CN102758806A (en) * | 2012-07-18 | 2012-10-31 | 天津市天锻压力机有限公司 | Crossbeam press multi-hydraulic cushion synchronous control system |
| CN102758806B (en) * | 2012-07-18 | 2015-05-13 | 天津市天锻压力机有限公司 | Crossbeam press multi-hydraulic cushion synchronous control system |
| CN105174062A (en) * | 2015-10-19 | 2015-12-23 | 中联重科股份有限公司 | Multi-cylinder jacking synchronous control system, method and device and tower crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102192206A (en) | Hydraulic dynamic synchronization control and position compensation system | |
| CN101852220B (en) | Controllable high-pressure high-flow generating device and control method thereof | |
| CN103644151A (en) | Energy-conservation and low-impact hydraulic cylinder test testbed hydraulic control system | |
| CN203926222U (en) | For the buffering control device of double-acting hydraulic cylinder | |
| CN203081884U (en) | Four-cylinder synchronous electro-hydraulic proportional control system for main lift cylinder of vertical ship lift | |
| CN103708375B (en) | Large structure based on speed control is weighed hydraulic control architectures | |
| CN202100542U (en) | Hydraulic synchronous control device | |
| CN103644172A (en) | Device and method for detecting and protecting telescopic oil cylinder of crane | |
| CN104502011A (en) | Steel cable tension monitoring device for multi-cable lifter | |
| CN204591851U (en) | Multistage flow pressure compound control system | |
| CN102021899A (en) | Synchronizing circuit applicable to double suspension hoist | |
| CN205478599U (en) | Experimental hydraulic control system of analog loading | |
| CN201828418U (en) | Hydraulic test system for horizontal dual-cylinder hydraulic machine | |
| CN205910075U (en) | A testing arrangement for hydraulic hose withstand voltage test | |
| CN202659605U (en) | Gravitational equilibrium flow compensation type hydraulic cylinder displacement synchronous control system | |
| CN103711737A (en) | Structure for controlling hydraulic lift shifting process and state of large-scale structures | |
| EP3011282B1 (en) | A method and a device for determining the weight of a load | |
| CN104234988B (en) | Explosion-proof automatically controlled enclosed pump and use its moment to engine power keep high usage control method | |
| CN203348219U (en) | Hydraulic cylinder testing device | |
| CN201650894U (en) | Controllable high pressure and large flow generating device | |
| CN203796674U (en) | Hydraulic device of comprehensive test bed for hydraulic systems of drainage pavement performance recovery equipment | |
| CN104454713A (en) | Hydraulic loading system of torque detecting device for electric actuating mechanism | |
| CN104358725A (en) | Synchronous cylinder control middle tank ascending and descending device | |
| CN211820157U (en) | Hydraulic synchronous control valve set for cooling bed | |
| CN204226314U (en) | Synchronized cylinder controls pans lowering or hoisting gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710032 Shaanxi province Xi'an Weiyang Dongyuan Road No. 209 Chinese Heavy Machinery Research Institute Co. Ltd. Patentee after: China National Heavy Machinery Research Institute Co., Ltd. Address before: 710032 Shaanxi province Xi'an Weiyang Dongyuan Road No. 209 Chinese Heavy Machinery Research Institute Co. Ltd. Patentee before: China National Heavy Machinery Research Institute Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20170524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |