CN202579464U - Intelligent pressure gage hydraulic system of roller-changing trolley - Google Patents
Intelligent pressure gage hydraulic system of roller-changing trolley Download PDFInfo
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- CN202579464U CN202579464U CN 201220251938 CN201220251938U CN202579464U CN 202579464 U CN202579464 U CN 202579464U CN 201220251938 CN201220251938 CN 201220251938 CN 201220251938 U CN201220251938 U CN 201220251938U CN 202579464 U CN202579464 U CN 202579464U
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- directional control
- solenoid directional
- control valve
- hydraulic system
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Abstract
The utility model discloses an intelligent pressure gage hydraulic system of a roller-changing trolley. The intelligent pressure gage hydraulic system of the roller-changing trolley comprises a electric pump, a first magnetic reversing valve, a second magnetic reversing valve, a third magnetic reversing valve, an overflow valve, a PLC (programmable logic controller), a first intelligent pressure gage, a second intelligent pressure gage, a low-pressure connector, a high-pressure connector, a pressure reducing valve and an oil tank. The intelligent pressure gage hydraulic system of the roller-changing trolley aims to overcome shortages in the prior art, an intelligent pressure gage integrated by a pressure sensor and a digital pressure gauge is arranged in the hydraulic system, a pressure relay is omitted, so that the system is simplified, and two-way hydraulic oil provided by the hydraulic system is digitally set and is visual and distinct in pressure display. The intelligent pressure gage hydraulic system of the roller-changing trolley has the advantages of convenience in system adjustment, accurate output pressure value and fine operation stability. The problem of spring fatigue of the mechanical pressure relay is also avoided.
Description
Technical field
The utility model relates to the technical field of steel rolling mill's mill roll, especially a kind of intelligent manometer hydraulic system of roll change buggy.
Background technique
Wire rod is the stock in the building reinforced concrete construction, and the wire rod of the production of existing steel rolling mill is that the extruding of roller rest ring forms; Especially fast mill; It go out linear velocity 60～80 meters of per seconds, for this reason, also just quite big to the wearing and tearing of collars; Cause the replacing frequency of collars quite high, even will change collars in one day one time.For reducing the shared time of collars of changing, change collars easily for convenient, quick reaching, roll change buggy just arises.When collars is installed, require the hydraulic system of roll change buggy to provide two-way hydraulic oil adjustable, different pressures, the one tunnel is used to compress collars, is generally about 120 Bar, and another road is used for compressing tapered sleeve, is generally about 500 Bar.The problem that exists is, because the parameter that milling equipment production firm is adopted is different, and every fast mill is used to compress collars; Or it is different to be used to compress the force value that tapered sleeve sets; For this reason, the two-way hydraulic oil that hydraulic system provided of existing roll change buggy is although can satisfy the required pressure range of work; But exist to regulate inconvenience, and the defective of delivery pressure value poor accuracy, poor work stability.And also there are problems such as spring fatigue in the mechanical compression relay that tradition is used.
The model utility content
The purpose of the utility model is the intelligent manometer hydraulic system of a kind of roll change buggy of providing to the deficiency of existing technology; The utility model is provided with the intelligent manometer of digital pressure gauge and pressure transducer one in hydraulic system; Save the traditional mechanical pressure relay, simplified system, the two-way hydraulic oil that hydraulic system is provided is numeral setting, pressure-display visual and clear; It is easy to adjust to have system, and the delivery pressure value is accurate, the advantage of good operating stability.
The concrete technological scheme that realizes the utility model purpose is:
A kind of intelligent manometer hydraulic system of roll change buggy; Its characteristics comprise motor-drive pump, first solenoid directional control valve, second solenoid directional control valve, the 3rd solenoid directional control valve, relief valve, PLC programmable controller, first intelligent manometer, second intelligent manometer, low-voltage interface, high voltage interface, reduction valve and fuel tank, and said motor-drive pump is located in the fuel tank; Said electronic delivery side of pump connects the input end of first solenoid directional control valve, second solenoid directional control valve and the 3rd solenoid directional control valve respectively; Wherein, The output terminal of first solenoid directional control valve connects reduction valve, first intelligent manometer and low-voltage interface respectively; The output terminal of second solenoid directional control valve connects second intelligent manometer and high voltage interface respectively, and the output terminal of the 3rd solenoid directional control valve connects relief valve; The loop of said first solenoid directional control valve, second solenoid directional control valve, the 3rd solenoid directional control valve, relief valve and reduction valve all connects in fuel tank; The control wiring of said PLC programmable controller is connected with motor-drive pump, first solenoid directional control valve, second solenoid directional control valve, the 3rd solenoid directional control valve, first intelligent manometer and second intelligent manometer respectively.
The utility model is provided with intelligent manometer in hydraulic system, simplified system, and it is clear that the pressure of the two-way hydraulic oil that hydraulic system provides is indicated, and it is easy to adjust to have system, and the delivery pressure value accurately, the advantage of good operating stability.
Description of drawings
Fig. 1 is the schematic representation of the utility model hydraulic system.
Embodiment
Consult Fig. 1; The utility model comprises motor-drive pump 1, first solenoid directional control valve 2, second solenoid directional control valve 3, the 3rd solenoid directional control valve 4, relief valve 5, PLC programmable controller 6, first intelligent manometer 7, second intelligent manometer 8, low-voltage interface 10, high voltage interface 11, reduction valve 12 and fuel tank 14, and said motor-drive pump 1 is located in the fuel tank 14; The output terminal of said motor-drive pump 1 connects the input end of first solenoid directional control valve 2, second solenoid directional control valve 3 and the 3rd solenoid directional control valve 4 respectively; Wherein, The output terminal of first solenoid directional control valve 2 connects reduction valve 12, first intelligent manometer 7 and low-voltage interface 10 respectively; The output terminal that the output terminal of second solenoid directional control valve 3 connects second intelligent manometer 8 and high voltage interface 11, the three solenoid directional control valves 4 respectively connects relief valve 5; The loop of said first solenoid directional control valve 2, second solenoid directional control valve 3, the 3rd solenoid directional control valve 4, relief valve 5 and reduction valve 12 all connects in fuel tank; The control wiring of said PLC programmable controller 6 is connected with motor-drive pump 1, first solenoid directional control valve 2, second solenoid directional control valve 3, the 3rd solenoid directional control valve 4, first intelligent manometer 7 and second intelligent manometer 8 respectively.
The utility model is work like this:
1) it is following, specifically to adorn the roller process:
A) default:
Setting value in the low-voltage interface 10 is that the working pressure of reduction valve is: 160 Bar; Setting value in the high voltage interface 11 is that the working pressure of relief valve is: 520 Bar; The middle working pressure of first intelligent manometer 7 is: 120 Bar; The middle working pressure of second intelligent manometer 8 is: 250 Bar.
B) system connects:
Low-voltage interface 10 is connected with the collars oil cylinder of milling train, high voltage interface 11 is connected with the tapered sleeve oil cylinder of milling train; Selector switch on the roll change buggy Direct box is chosen dress roller position.
C) system works:
Press the dress roller button on the roll change buggy Direct box, the utility model is started working, motor-drive pump 1 running; 2 conductings of first solenoid directional control valve; Pressure in the low-voltage interface 10 begins to rise, and the reading on first intelligent manometer 7 begins to increase, when the middle working pressure that reaches first intelligent manometer 7 is worth 120 Bar; First intelligent manometer 7 sends information and gives PLC programmable controller 6; 3 conductings of PLC programmable controller 6 controls second solenoid directional control valve, at this moment, the pressure that reaches two-way in the high voltage interface 11 in the system low-voltage interface 10 rises simultaneously; When the pressure in the low-voltage interface 10 rises to the setup pressure value 160Bar of reduction valve 12; Pressure in the low-voltage interface 10 no longer rises under the effect of reduction valve 12; At this moment, the hydraulic oil of low-voltage interface 10 drives the collars oil cylinder of milling train, implements to compress the process of collars; And the pressure in the high voltage interface 11 continues to rise, and when rising to setup pressure value 520 Bar of relief valve 5, the pressure in the high voltage interface 11 no longer rises, and at this moment, the hydraulic oil of high voltage interface 11 drives the tapered sleeve oil cylinder of milling train, implements to compress the process of tapered sleeve.
Release button, PLC programmable controller 6 controls second solenoid directional control valve 3 and the circuit communication, high-pressure system off-load; Pressure drops to 0; And low service system worked on after 5 seconds, PLC programmable controller 6 controls first solenoid directional control valve 2 and the circuit communication, low service system off-load; Pressure drops to 0, and motor-drive pump 1 stops simultaneously.Dress roller process is all accomplished.
2) it is following, specifically to tear the roller process open:
With the high voltage interface 11 of roll change buggy with tear roller oil cylinder open and be connected, the selector switch on the Direct box is chosen is torn open the roller position.Press and tear the roller button open on the roll change buggy Direct box; The utility model is started working; Motor-drive pump 1 running, PLC programmable controller 6 control second solenoid directional control valves 3 and 4 conductings (the 3rd solenoid valve conduction is in order to close and to adorn the loop that the roller relief valve is communicated with, because it is the normal close type solenoid valve) simultaneously of the 3rd solenoid directional control valve; At this moment, the pressure of high voltage interface 11 inner high voltage systems begins to rise; The hydraulic oil of high voltage interface 11 drives the roller oil cylinder of tearing open of milling train, implements the unloading process of tapered sleeve, and the reading on second digital relay 8 begins to increase at this moment; When the middle working pressure that reaches second digital relay 8 is worth 250 Bar, give 6 one connection signals of PLC programmable controller, if when tapered sleeve is not torn pine open; The pressure of high-pressure oil passage can continue to rise; The moment of tearing pine up to tapered sleeve open takes place, and at this moment, the pressure of high-pressure oil passage can descend fast; When the middle working pressure that drops to second digital relay 8 when pressure is worth 250 Bar; Give 6 one cut-off signals of PLC programmable controller again, PLC programmable controller 6 judges that according to two signals of a connection and a disconnection tearing roller work open accomplishes, PLC programmable controller 6 control second solenoid directional control valve 3 and the 3rd solenoid directional control valve 4 and circuit communication; The high-pressure system off-load, motor-drive pump 1 stops simultaneously.Tearing the roller process open all accomplishes.
Claims (1)
1. the intelligent manometer hydraulic system of a roll change buggy; It is characterized in that it comprises motor-drive pump (1), first solenoid directional control valve (2), second solenoid directional control valve (3), the 3rd solenoid directional control valve (4), relief valve (5), PLC programmable controller (6), first intelligent manometer (7), second intelligent manometer (8), low-voltage interface (10), high voltage interface (11), reduction valve (12) and fuel tank (14), said motor-drive pump (1) is located in the fuel tank (14); The output terminal of said motor-drive pump (1) connects the input end of first solenoid directional control valve (2), second solenoid directional control valve (3) and the 3rd solenoid directional control valve (4) respectively; Wherein, The output terminal of first solenoid directional control valve (2) connects reduction valve (12), first intelligent manometer (7) and low-voltage interface (10) respectively; The output terminal of second solenoid directional control valve (3) connects second intelligent manometer (8) and high voltage interface (11) respectively, and the output terminal of the 3rd solenoid directional control valve (4) connects relief valve (5); The loop of said first solenoid directional control valve (2), second solenoid directional control valve (3), the 3rd solenoid directional control valve (4), relief valve (5) and reduction valve (12) all connects in fuel tank; The control wiring of said PLC programmable controller (6) is connected with motor-drive pump (1), first solenoid directional control valve (2), second solenoid directional control valve (3), the 3rd solenoid directional control valve (4), first intelligent manometer (7) and second intelligent manometer (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251938 CN202579464U (en) | 2012-05-31 | 2012-05-31 | Intelligent pressure gage hydraulic system of roller-changing trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251938 CN202579464U (en) | 2012-05-31 | 2012-05-31 | Intelligent pressure gage hydraulic system of roller-changing trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579464U true CN202579464U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220251938 Expired - Lifetime CN202579464U (en) | 2012-05-31 | 2012-05-31 | Intelligent pressure gage hydraulic system of roller-changing trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579464U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170830A (en) * | 2013-03-08 | 2013-06-26 | 山东临工工程机械有限公司 | Novel cone tapered roller bearing play regulating equipment and regulating method thereof |
| CN103212582A (en) * | 2013-04-08 | 2013-07-24 | 张家港联峰钢铁研究所有限公司 | Pressing method in roll loading process of high speed wire mill |
| CN107138535A (en) * | 2017-04-13 | 2017-09-08 | 江苏理工学院 | A kind of novel rolling mill press down system |
| CN107957315A (en) * | 2018-01-09 | 2018-04-24 | 上海仪器仪表自控***检验测试所有限公司 | A kind of pressure-resistant fatigue experimental device of pressure gauge |
-
2012
- 2012-05-31 CN CN 201220251938 patent/CN202579464U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170830A (en) * | 2013-03-08 | 2013-06-26 | 山东临工工程机械有限公司 | Novel cone tapered roller bearing play regulating equipment and regulating method thereof |
| CN103170830B (en) * | 2013-03-08 | 2016-01-27 | 山东临工工程机械有限公司 | Novel tapered roller bearing play adjustment equipment and method of adjustment thereof |
| CN103212582A (en) * | 2013-04-08 | 2013-07-24 | 张家港联峰钢铁研究所有限公司 | Pressing method in roll loading process of high speed wire mill |
| CN107138535A (en) * | 2017-04-13 | 2017-09-08 | 江苏理工学院 | A kind of novel rolling mill press down system |
| CN107957315A (en) * | 2018-01-09 | 2018-04-24 | 上海仪器仪表自控***检验测试所有限公司 | A kind of pressure-resistant fatigue experimental device of pressure gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |