CN102166832A - Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine - Google Patents
Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine Download PDFInfo
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- CN102166832A CN102166832A CN201110009578XA CN201110009578A CN102166832A CN 102166832 A CN102166832 A CN 102166832A CN 201110009578X A CN201110009578X A CN 201110009578XA CN 201110009578 A CN201110009578 A CN 201110009578A CN 102166832 A CN102166832 A CN 102166832A
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Abstract
The invention discloses an energy-saving and consumption-reducing hydraulic system with multistage pressure control for a large hydraulic machine, which comprises a main cylinder, a plurality of groups of side cylinders and a plurality of oil pump motor sets, wherein inserts are connected to individual upper cavity oil paths or merged upper cavity oil paths at the oil inlets of the main cylinder and the side cylinders; and the inlet ends of the inserts are connected with oil supply pipelines of the oil pump motor sets. The energy-saving and consumption-reducing hydraulic system with multistage pressure control for a large hydraulic machine is applied to main tonnage multi-section regulation combination of the large hydraulic machine, and can be divided into multiple sections to enable different pressure-regulating ranges so as to improve pressure-regulating precision. Due to the adoption of the energy-saving and consumption-reducing hydraulic system with multistage pressure control for a large hydraulic machine, system leakage factors are reduced and energy consumption of a motor during idling is avoided. Full-power work of the motor is fully utilized so that maximum working efficiency is reached.
Description
Technical field
The present invention relates to the pressure Multistage Control hydraulic system of the energy-conservation consumption of large hydraulic press, more specifically saying so is applied in the main tonnage pressure Multistage Control hydraulic system of large hydraulic press.
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Background technology
It generally is by regulating system pressure that at present known main tonnage at large hydraulic press changes, and changes the output pressure of working cylinder, that is to say no matter how main tonnage changes, and all the Oil pump electrical machinery groups in the system all will be worked.This regulative mode in the bigger and operating rate of main tonnage than in the equipment faster, because regulating system pressure does not reduce oil pump and power of electric motor consumption, so when reducing system pressure work, can produce bigger energy dissipation.Overall efficiency descends, and energy consumption rises; And pressure adjustable range too conference makes the pressure regulation precision reduce greatly.
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Summary of the invention
The pressure Multistage Control hydraulic system that the purpose of this invention is to provide the energy-conservation consumption of a kind of large hydraulic press, be divided into the multistage range of regulation to improve the pressure regulation precision, minimizing system leakage loss factor, energy consumption when avoiding the idle running of motor and oil pump makes full use of motor and oil pump full power operation to reach maximum efficiency.
The technical solution used in the present invention is as follows:
The pressure Multistage Control hydraulic system of the energy-conservation consumption of a kind of large hydraulic press, include master cylinder, organize side cylinder more, organize the Oil pump electrical machinery group more, be connected with plug-in unit after described master cylinder or the epicoele oil circuit of organizing the side cylinder oil-in merge separately or mutually more, the entrance point of plug-in unit is connected with the oil feed lines of organizing the Oil pump electrical machinery groups more.
Described plug-in unit has three, respectively by the cut-out and the connection of magnet control oil circuit.
The present invention is guaranteeing under the constant situation of host work speed, employing is switched the work of main oil pump arbitrarily and is stopped, again respectively by the cut-out and the connection of each plug-in unit of magnet control, to reach the independent control of master cylinder and side cylinder epicoele oil circuit grouping, be combined into different main tonnages, to satisfy different technological requirements.This Multistage Control hydraulic system adopts pressure regulator valve to carry out pressure controlled method, can be divided into the multistage range of regulation, to improve the pressure regulation precision; The independent control of oil circuit grouping makes the not oil-feed of idle oil cylinder, can reduce the leakage loss of oil circuit; Motor and oil pump can selectively start according to flow and compacting power requirement in when compacting, and the motor of not using can cut out, the energy consumption when avoiding big motor idle running, and the motor of work can full power operation, reaches maximal efficiency.
Compared with the prior art, beneficial effect of the present invention is as follows:
The present invention is with the pressure Multistage Control hydraulic system of the energy-conservation consumption of large hydraulic press, be used in the multistage adjustment of main tonnage of large hydraulic press, be divided into the multistage range of regulation to improve the pressure regulation precision, minimizing system leakage loss factor, energy consumption when avoiding the idle running of motor and oil pump makes full use of motor and oil pump full power operation to reach maximum efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Number in the figure: No. one plug-in unit 1, No. two plug-in units 2, No. three plug-in unit 3, No. one Oil pump electrical machinery group 4, No. two Oil pump electrical machinery groups 5, No. three Oil pump electrical machinery group 6, No. four Oil pump electrical machinery groups 7, No. 5 Oil pump electrical machinery groups 8, land Oil pump electrical machinery group 9, two 500 tons of oil cylinders 10, two 1000 tons of oil cylinders 11,, 2000 tons of oil cylinders 12
The specific embodiment
Referring to accompanying drawing, the pressure Multistage Control hydraulic system of the energy-conservation consumption of large hydraulic press, in the large hydraulic press system, can on the equipment of three cylinders and the above structure of three cylinders, adopt the principle of oil cylinder grouping control, master cylinder is a plunger case, remaining is a piston cylinder, be respectively two 500 tons of oil cylinders 10, two 1000 tons of oil cylinders 11,2000 tons of oil cylinders 12 have designed 3 kinds of plug-in units in system, be respectively plug-in unit 1 No. one, No. two plug-in units 2, No. three plug-in unit 3, respectively by electromagnet 3Y7.1,3Y7.2,3Y7.3 control the cut-out and the connection of each plug-in unit, to reach the independent control of master cylinder and side cylinder epicoele oil circuit grouping, be combined into different main tonnages, to satisfy different technological requirements, just can mix into 1000T in the accompanying drawing, 2000T, 3000T, 4000T, five kinds of main tonnages of 5000T, and under the requirement of different main tonnages, No. one Oil pump electrical machinery group 4, No. two Oil pump electrical machinery groups 5, No. three Oil pump electrical machinery group 6, No. four Oil pump electrical machinery groups 7, No. 5 Oil pump electrical machinery groups 8, land Oil pump electrical machinery group 9 can be according to flow and compacting power requirement, selectively combination startup work arbitrarily, not needing the oil pump of work just can close for electronic group stops, avoid the energy consumption in when idle running of Oil pump electrical machinery group like this, the Oil pump electrical machinery group of work can full power operation, reaches maximum overall efficiency.The Multistage Control hydraulic system adopts pressure regulator valve to carry out pressure controlled method, can make hydraulic system be divided into the multistage range of regulation, to improve the pressure regulation precision; The independent control of oil circuit grouping makes the not oil-feed of idle oil cylinder, can reduce the leakage loss of oil circuit.Improve the reliability of complete machine.
Claims (2)
1. the pressure Multistage Control hydraulic system of the energy-conservation consumption of large hydraulic press, include master cylinder, organize side cylinder more, organize the Oil pump electrical machinery group more, it is characterized in that: be connected with plug-in unit after described master cylinder or the epicoele oil circuit of organizing the side cylinder oil-in merge separately or mutually more, the entrance point of plug-in unit is connected with the oil feed lines of organizing the Oil pump electrical machinery groups more.
2. the pressure Multistage Control hydraulic system of the energy-conservation consumption of large hydraulic press according to claim 1 is characterized in that: described plug-in unit has three, respectively by the cut-out and the connection of magnet control oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009578XA CN102166832A (en) | 2011-01-17 | 2011-01-17 | Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110009578XA CN102166832A (en) | 2011-01-17 | 2011-01-17 | Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine |
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| CN102166832A true CN102166832A (en) | 2011-08-31 |
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| CN201110009578XA Pending CN102166832A (en) | 2011-01-17 | 2011-01-17 | Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996397A (en) * | 2012-11-28 | 2013-03-27 | 晶日金刚石工业有限公司 | Variable radial ultrahigh-pressure oil pump |
| CN103552275A (en) * | 2013-11-07 | 2014-02-05 | 南通皋液液压机有限公司 | Same-cavity double-ejection hydraulic press |
| CN103713610A (en) * | 2014-01-02 | 2014-04-09 | 莱芜钢铁集团有限公司 | Hydraulic control system of hot rolling production line and control method thereof |
| CN104309161A (en) * | 2014-08-29 | 2015-01-28 | 合肥海德数控液压设备有限公司 | Multi-cylinder piecewise pressure regulation system for hydraulic press |
| CN104338826A (en) * | 2013-07-31 | 2015-02-11 | 天津市天锻压力机有限公司 | Quick punching system of multidirectional forging hydraulic press |
| CN107288959A (en) * | 2017-08-09 | 2017-10-24 | 江苏理工学院 | A kind of large hydraulic press crossbeam leveling hydraulic system |
| WO2017219337A1 (en) * | 2016-06-24 | 2017-12-28 | 邵正国 | Hydraulic system for hydraulic machine for forging and pressing elastic material |
| CN114161767A (en) * | 2021-12-08 | 2022-03-11 | 中国第一重型机械股份公司 | Multi-cylinder grading pressurization method of hydraulic machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996397A (en) * | 2012-11-28 | 2013-03-27 | 晶日金刚石工业有限公司 | Variable radial ultrahigh-pressure oil pump |
| CN102996397B (en) * | 2012-11-28 | 2015-03-18 | 晶日金刚石工业有限公司 | Variable radial ultrahigh-pressure oil pump |
| CN104338826A (en) * | 2013-07-31 | 2015-02-11 | 天津市天锻压力机有限公司 | Quick punching system of multidirectional forging hydraulic press |
| CN103552275A (en) * | 2013-11-07 | 2014-02-05 | 南通皋液液压机有限公司 | Same-cavity double-ejection hydraulic press |
| CN103713610A (en) * | 2014-01-02 | 2014-04-09 | 莱芜钢铁集团有限公司 | Hydraulic control system of hot rolling production line and control method thereof |
| CN104309161A (en) * | 2014-08-29 | 2015-01-28 | 合肥海德数控液压设备有限公司 | Multi-cylinder piecewise pressure regulation system for hydraulic press |
| WO2017219337A1 (en) * | 2016-06-24 | 2017-12-28 | 邵正国 | Hydraulic system for hydraulic machine for forging and pressing elastic material |
| CN107288959A (en) * | 2017-08-09 | 2017-10-24 | 江苏理工学院 | A kind of large hydraulic press crossbeam leveling hydraulic system |
| CN107288959B (en) * | 2017-08-09 | 2019-06-11 | 江苏理工学院 | A large hydraulic press beam leveling hydraulic system |
| CN114161767A (en) * | 2021-12-08 | 2022-03-11 | 中国第一重型机械股份公司 | Multi-cylinder grading pressurization method of hydraulic machine |
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Application publication date: 20110831 |