CN102966608A - Energy saving method of intermittent motion hydraulic machinery - Google Patents
Energy saving method of intermittent motion hydraulic machinery Download PDFInfo
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- CN102966608A CN102966608A CN2012104629865A CN201210462986A CN102966608A CN 102966608 A CN102966608 A CN 102966608A CN 2012104629865 A CN2012104629865 A CN 2012104629865A CN 201210462986 A CN201210462986 A CN 201210462986A CN 102966608 A CN102966608 A CN 102966608A
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Abstract
The invention discloses an energy saving method of an intermittent motion hydraulic machinery. A hydraulic pump with low flow rate is selected, so that an executor achieves high-speed motion, and meanwhile, a system is kept in a high-efficiency optimal state; a section of quick loop is arranged; when a manual reversing valve is connected, a hydraulic one-way valve is opened, an energy accumulator and a piston of an oil pump quickly ascend, and the oil pump is charged; after pressure of the energy accumulator rises to reach a design value, pump unloading is performed, and the piston of the oil cylinder is returned by a spring; hydraulic oil is filled in the energy accumulator of a hydraulic pump station which normally operates; an electric one-way valve is electrified and opened before the machine is stopped and restarted; and pressure oil in the energy accumulator enters a hydraulic motor through a preset throttle valve. The method has the beneficial effects that release of hydraulic energy in the energy accumulator into an oil motor can be guaranteed to quickly operate the motor, the integral working efficiency of the equipment is improved, and the electric energy is saved.
Description
Technical field
The present invention relates to the hydraulics field, relate in particular to the method for the energy-conservation function of a kind of intermittent motion hydraulic machinery.
Background technique
Hydraulic system has that power is large, working pressure and the flow adjustability is good, heat can be brought back the advantages such as fuel tank.But there is the multiple energy conversion in hydraulic transmission, and hydraulic oil container causes latency environment to pollute and the loss of oil, therefore, and the essential performance that improves hydraulic transmission and control of hydraulics, could adapt to sustainable development and energy-conservation needs, ability raising and Electrified Transmission, mechanical transmission competitive capacity.Although can reduce motor load for the relief valve off-load in the press machine hydraulic system, but still to consume the similar fully loaded electric energy more than 1/3, though the power failure machine does not consume electric energy, but when motor starts again, can consume the very large electrokinetic energy that rises, Fraquent start is often the time, this waste meeting is very large, and large electric current constantly impacts electrical network and causes line voltage moment decline, can have influence on the Safety and Service Life of other electrical equipment, and increase equipment cost.Simultaneously, the hydraulic machinery of intermittent movement is furnished with accumulator, and oil hydraulic pump is to the accumulator fuel feeding, and work cycle certain period, final controlling element needed high-speed motion the time, accumulator can be confessed pressure oil with oil hydraulic pump simultaneously as the auxiliary power source of oil hydraulic pump.
Summary of the invention
The purpose of this invention is to provide a kind of method that reduces starting large electric current, saving power, can reduce the energy-conservation function of intermittent motion hydraulic machinery of equipment cost, to solve many deficiencies of prior art.
Purpose of the present invention is come specific implementation by the following technical programs:
The method of the energy-conservation function of a kind of intermittent motion hydraulic machinery mainly is comprised of following steps:
⑴ at first be respectively installed to the position with used motor and oil pump unit, oil hydraulic motor, connects successively throttle valve, electronic one-way valve and accumulator at the outside oil circuit of set oil hydraulic motor;
⑵ select the less oil hydraulic pump of flow so that final controlling element obtains high-speed motion, makes simultaneously system be in high efficiency the optimum state; One section quick loop is set, when hand-operated direction valve is connected, Pilot operated check valve is opened, the piston fast rise of accumulator and oil pump after oil pump topping up, energy storage pressure raise and reach design load, is carried out the pump unloading, and the piston of oil cylinder is then returned by spring;
⑶ be full of hydraulic oil then in its accumulator of hydraulic power unit of normal operation, before shutdown starts again, control electronic one-way valve energising and open, and the pressure oil in the accumulator enters oil hydraulic motor through pre-set throttle valve;
⑷ when arrive the lower limit set value of pressure gauge setting when pressure decreased, with the electrical power starting, enter normal working, thereby motor has very high rotating speed when starting.
The beneficial effect of the method for the energy-conservation function of intermittent motion hydraulic machinery of the present invention is: during electric motor starting, can guarantee the hydraulic energy in the accumulator is discharged in the oil motor that is contained on the motor by throttle valve, make motor fast turn-around; Because motor has had very high rotating speed, can not produce very large starting current, enter very soon normal working, improved the working efficiency of Whole Equipment, saved electric energy, applicable to the intermittent motion hydraulic machinery.
Embodiment
The method of the energy-conservation function of the described intermittent motion hydraulic machinery of the embodiment of the invention, its key step comprises:
⑴ at first be respectively installed to the position with used motor and oil pump unit, oil hydraulic motor, connects successively throttle valve, electronic one-way valve and accumulator at the outside oil circuit of set oil hydraulic motor;
⑵ select the less oil hydraulic pump of flow so that final controlling element obtains high-speed motion, makes simultaneously system be in high efficiency the optimum state; One section quick loop is set, when hand-operated direction valve is connected, Pilot operated check valve is opened, the piston fast rise of accumulator and oil pump after oil pump topping up, energy storage pressure raise and reach design load, is carried out the pump unloading, and the piston of oil cylinder is then returned by spring;
⑶ be full of hydraulic oil then in its accumulator of hydraulic power unit of normal operation, before shutdown starts again, control electronic one-way valve energising and open, and the pressure oil in the accumulator enters oil hydraulic motor through pre-set throttle valve;
⑷ when arrive the lower limit set value of pressure gauge setting when pressure decreased, with the electrical power starting, enter normal working, thereby motor has very high rotating speed when starting.
Claims (1)
1. the method for the energy-conservation function of intermittent motion hydraulic machinery is characterized in that, mainly is comprised of following steps:
⑴ at first be respectively installed to the position with used motor and oil pump unit, oil hydraulic motor, connects successively throttle valve, electronic one-way valve and accumulator at the outside oil circuit of set oil hydraulic motor;
⑵ select the less oil hydraulic pump of flow so that final controlling element obtains high-speed motion, makes simultaneously system be in high efficiency the optimum state; One section quick loop is set, when hand-operated direction valve is connected, Pilot operated check valve is opened, the piston fast rise of accumulator and oil pump after oil pump topping up, energy storage pressure raise and reach design load, is carried out the pump unloading, and the piston of oil cylinder is then returned by spring;
⑶ be full of hydraulic oil then in its accumulator of hydraulic power unit of normal operation, before shutdown starts again, control electronic one-way valve energising and open, and the pressure oil in the accumulator enters oil hydraulic motor through pre-set throttle valve;
⑷ when arrive the lower limit set value of pressure gauge setting when pressure decreased, with the electrical power starting, enter normal working, thereby motor has very high rotating speed when starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104629865A CN102966608A (en) | 2012-11-16 | 2012-11-16 | Energy saving method of intermittent motion hydraulic machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104629865A CN102966608A (en) | 2012-11-16 | 2012-11-16 | Energy saving method of intermittent motion hydraulic machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102966608A true CN102966608A (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104629865A Pending CN102966608A (en) | 2012-11-16 | 2012-11-16 | Energy saving method of intermittent motion hydraulic machinery |
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| CN (1) | CN102966608A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201228676Y (en) * | 2008-07-11 | 2009-04-29 | 三一重型装备有限公司 | Hydraulic system for electric locomotive brake |
| CN201325841Y (en) * | 2008-12-19 | 2009-10-14 | 上海三一科技有限公司 | High-low pressure switching hydraulic system for preventing back tilting of caterpillar crane jib |
| CN101564893A (en) * | 2009-05-25 | 2009-10-28 | 江苏佳成机械有限公司 | Hydraulic drive unit for high-speed continuous hollow blow molding machine |
| CN201507505U (en) * | 2009-09-23 | 2010-06-16 | 山东广富集团有限公司 | Hydraulic station electromotor intermittent starting booster unit |
| CN201836129U (en) * | 2010-07-09 | 2011-05-18 | 上海朝田实业有限公司 | Quick pressure lifting device for accumulator on hydraulic pump station |
| CN102155440A (en) * | 2011-04-06 | 2011-08-17 | 上海朝田实业有限公司 | Hydraulic energy-saving motor device of hydraulic pump station |
| US20120240567A1 (en) * | 2011-01-31 | 2012-09-27 | Poclain Hydraulics Industrie | Hydraulic transmission device allowing energy recovery |
-
2012
- 2012-11-16 CN CN2012104629865A patent/CN102966608A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201228676Y (en) * | 2008-07-11 | 2009-04-29 | 三一重型装备有限公司 | Hydraulic system for electric locomotive brake |
| CN201325841Y (en) * | 2008-12-19 | 2009-10-14 | 上海三一科技有限公司 | High-low pressure switching hydraulic system for preventing back tilting of caterpillar crane jib |
| CN101564893A (en) * | 2009-05-25 | 2009-10-28 | 江苏佳成机械有限公司 | Hydraulic drive unit for high-speed continuous hollow blow molding machine |
| CN201507505U (en) * | 2009-09-23 | 2010-06-16 | 山东广富集团有限公司 | Hydraulic station electromotor intermittent starting booster unit |
| CN201836129U (en) * | 2010-07-09 | 2011-05-18 | 上海朝田实业有限公司 | Quick pressure lifting device for accumulator on hydraulic pump station |
| US20120240567A1 (en) * | 2011-01-31 | 2012-09-27 | Poclain Hydraulics Industrie | Hydraulic transmission device allowing energy recovery |
| CN102155440A (en) * | 2011-04-06 | 2011-08-17 | 上海朝田实业有限公司 | Hydraulic energy-saving motor device of hydraulic pump station |
Non-Patent Citations (1)
| Title |
|---|
| 崔培雪，冯宪琴: "《典型液压气动回路600例》", 31 August 2011, 化学工业出版社 * |
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Application publication date: 20130313 |