CN216478118U - Hydraulic servo control system for HAGC (hydraulic control unit) oil cylinder of four-roller reversible plate mill - Google Patents
Hydraulic servo control system for HAGC (hydraulic control unit) oil cylinder of four-roller reversible plate mill Download PDFInfo
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- CN216478118U CN216478118U CN202123204931.8U CN202123204931U CN216478118U CN 216478118 U CN216478118 U CN 216478118U CN 202123204931 U CN202123204931 U CN 202123204931U CN 216478118 U CN216478118 U CN 216478118U
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Abstract
The utility model provides a four roller reversible sheet rolling mill HAGC hydro-cylinder hydraulic pressure servo control system, includes the AGC hydro-cylinder, it has pole chamber I and AGC hydro-cylinder to have pole chamber II to be equipped with the AGC hydro-cylinder in the AGC hydro-cylinder respectively, the AGC hydro-cylinder has pole chamber I to be connected with high-order oil tank through AGC, the AGC hydro-cylinder has pole chamber II to be connected with AGC servo rodless chamber servo system through AGC rodless chamber oil pipe, AGC servo system rodless chamber servo system includes AGC servo system rodless chamber servo valve. The utility model discloses an adopt the high-order oil tank to carry out the fuel feeding, guarantee that AGC has the lubrication of each part in pole chamber, reduced there is pole chamber pressure, prevent to have the pole chamber oil leak, effectively stop the oil leak after having the sealed damage in pole chamber and intake and destroy AGC servo oil cleanliness, guaranteed HAGC hydro-cylinder hydraulic control system's stability.
Description
Technical Field
The utility model relates to a four high reversing plate mill HAGC hydro-cylinders hydraulic servo control system.
Background
The hydraulic control system of the HAGC cylinder of the medium plate four-roller reversible rolling mill mainly comprises a lower support roller of the rolling mill supported by the HAGC cylinder on the transmission side and the HAGC cylinder on the operation side. The change of the compensating roll gap is controlled by a servo system, so that the roll gap is kept in a rule range in the rolling process. The rod cavity and the rodless cavity of the HAGC oil cylinder are controlled by a group of servo valves respectively. The rodless cavity has 4 rubber tubes of phi 40 for connecting and supplying oil due to the large volume of the oil cylinder. The rod cavity is provided with 1 rubber tube with diameter of 40 for connecting and supplying oil. In the roll changing state, oil is fed into the rod cavity of the oil cylinder, and oil leakage of the rod cavity is easily caused due to overhigh pressure after the oil cylinder descends. In addition, the working condition and environment of a field are severe, water and iron oxide chips exist for a long time, the sealing grooves of the end covers of the HAGC oil cylinders with the value of 300 ten thousand are seriously corroded, oil leaks from the system, and the iron oxide chips enter the system, so that the AGC system is frequently in failure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses its aim at provides a four high reversible plate mill HAGC hydro-cylinder hydraulic servo control system to solve the problem among the above-mentioned background art.
The technical scheme adopted for achieving the purpose is that the hydraulic servo control system of the HAGC cylinder of the four-roller reversible plate rolling mill comprises an AGC cylinder, wherein an AGC cylinder rod cavity I and an AGC cylinder rod cavity II are respectively arranged in the AGC cylinder, the AGC cylinder rod cavity I is connected with a high-level oil tank through an AGC rod cavity oil pipe, the AGC cylinder rod cavity II is connected with an AGC servo system rodless cavity servo system through an AGC rodless cavity oil pipe, and the AGC servo system rodless cavity servo system comprises an AGC servo system rodless cavity servo valve.
And further, the rod cavity II of the AGC cylinder is connected with a rodless cavity servo valve of an AGC servo system in the rodless cavity servo system of the AGC servo system through an AGC rodless cavity oil pipe.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
1. The utility model adopts the high-level oil tank to supply oil, ensures the lubrication of all parts of the AGC rod cavity, reduces the pressure of the rod cavity, prevents the rod cavity from oil leakage, effectively stops the oil leakage water inlet after the rod cavity is sealed and damaged to destroy the oil cleanliness of the AGC servo system, and ensures the stability of the HAGC oil cylinder hydraulic control system;
2. the utility model simplifies the investment of the AGC servo system, can reduce the cost and the maintenance cost; the problem that the AGC servo system pollutes oil products due to the fact that the system water inflow is caused by the sealing abrasion of the rod cavity of the oil cylinder is avoided, and the failure rate is reduced; the maintenance workload of a rodless cavity hydraulic servo system caused by water inflow of a rod cavity of the AGC cylinder is reduced.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram and an installation schematic diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments and the accompanying drawings.
As shown in fig. 1, a four-roller reversible plate mill HAGC hydro-cylinder hydraulic servo control system comprises an AGC hydro-cylinder 1, an AGC hydro-cylinder rod cavity I8 and an AGC hydro-cylinder rod cavity II 2 are respectively arranged in the AGC hydro-cylinder 1, the AGC hydro-cylinder rod cavity I8 is connected with a high-level oil tank 5 through an AGC rod cavity oil pipe 6, the AGC hydro-cylinder rod cavity II 2 is connected with an AGC servo system rodless cavity servo system 4 through an AGC rodless cavity oil pipe 7, and the AGC servo system rodless cavity servo system 4 comprises an AGC servo system rodless cavity servo valve 3.
And the AGC cylinder rod cavity II 2 is connected with an AGC servo system rodless cavity servo valve 3 in an AGC servo system rodless cavity servo system 4 through an AGC rodless cavity oil pipe 7.
The existing hydraulic control system for the HAGC oil cylinder has the advantages that under the condition that a rod cavity of the HAGC oil cylinder is sealed and damaged, on-site cooling water and oxidized iron filings in the rolling process can enter the rod cavity along with the action of the oil cylinder, and then enter an oil station oil tank along with oil through an oil pipe of a rod cavity servo system, so that the oil cleanliness of the servo system is reduced. The oil tank of the oil station of the pollution system enters the rodless cavity servo system along with the oil pump, so that the whole servo system enters vicious circle until the system is paralyzed.
And the utility model discloses increase high-order oil tank on current HAGC hydro-cylinder hydraulic control system's hydraulic pressure oil station basis, have the pole chamber to change into high-order oil tank 5 by original AGC hydraulic pressure station fuel feeding with the HAGC hydro-cylinder and carry out the fuel feeding, guarantee that AGC has the lubrication of each part in pole chamber, reduce and have pole chamber pressure, prevent to have the pole chamber oil leak, effectively stop the oil leak after having the sealed damage in pole chamber to intake and destroy AGC servo system oil cleanliness. The original hydraulic system is only responsible for the oil supply and control of the rodless cavity of the HAGC oil cylinder. And finally, the stability of the hydraulic control system of the HAGC oil cylinder is ensured.
The utility model discloses in, there is the pole chamber by the 5 low-pressure fuel feeding of independent high-order oil tank, stop to have the pole chamber to damage because of the pressure height sealed, also can provide the lubricated HAGC hydro-cylinder of low pressure oil and have each part of pole intracavity portion. Because the weight of the piston and the piston rod of the HAGC oil cylinder is nearly 3 tons, the descending caused by the dead weight of the lower supporting roller and the piston of the oil cylinder does not influence the action of the oil cylinder in the production process or during the roller replacement. Experiments prove that the response frequency of the HAGC servo system in the production process is not influenced after the rod cavity is changed into low pressure.
Claims (2)
1. The utility model provides a four high reversible sheet rolling mill HAGC hydro-cylinder hydraulic pressure servo control system, includes AGC hydro-cylinder (1), its characterized in that, it has pole chamber I (8) and AGC hydro-cylinder to have pole chamber II (2) to be equipped with the AGC hydro-cylinder in AGC hydro-cylinder (1) respectively, the AGC hydro-cylinder has pole chamber I (8) to have pole chamber oil pipe (6) to be connected with high-order oil tank (5) through AGC, the AGC hydro-cylinder has pole chamber II (2) to be connected with AGC servo system rodless chamber servo system (4) through AGC rodless chamber oil pipe (7), AGC servo system rodless chamber servo system (4) include AGC servo system rodless chamber servo valve (3).
2. The HAGC cylinder hydraulic servo control system of a four high reversing plate mill according to claim 1, wherein the AGC cylinder rod cavity II (2) is connected to the AGC servo rodless cavity servo valve (3) in the AGC servo rodless cavity servo (4) through an AGC rodless cavity oil pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123204931.8U CN216478118U (en) | 2021-12-20 | 2021-12-20 | Hydraulic servo control system for HAGC (hydraulic control unit) oil cylinder of four-roller reversible plate mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123204931.8U CN216478118U (en) | 2021-12-20 | 2021-12-20 | Hydraulic servo control system for HAGC (hydraulic control unit) oil cylinder of four-roller reversible plate mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478118U true CN216478118U (en) | 2022-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123204931.8U Active CN216478118U (en) | 2021-12-20 | 2021-12-20 | Hydraulic servo control system for HAGC (hydraulic control unit) oil cylinder of four-roller reversible plate mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478118U (en) |
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2021
- 2021-12-20 CN CN202123204931.8U patent/CN216478118U/en active Active
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