CN201507505U - Hydraulic station electromotor intermittent starting booster unit - Google Patents
Hydraulic station electromotor intermittent starting booster unit Download PDFInfo
- Publication number
- CN201507505U CN201507505U CN2009203111195U CN200920311119U CN201507505U CN 201507505 U CN201507505 U CN 201507505U CN 2009203111195 U CN2009203111195 U CN 2009203111195U CN 200920311119 U CN200920311119 U CN 200920311119U CN 201507505 U CN201507505 U CN 201507505U
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- oil
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- valve
- hydraulic station
- electromotor
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Abstract
The utility model relates to a hydraulic station electromotor intermittent starting booster unit which comprises a control oil way, wherein a one-way valve is arranged on an oil suction pipe between an oil pump of the control oil way and an oil tank, an electromagnetic change-over valve is connected in parallel on an oil suction pipe between the oil pump and the one-way valve, and another oil way of the electromagnetic change-over valve is connected with an oil way between an energy storage device and a valve platform in the control oil way. The hydraulic station electromotor intermittent starting booster unit has the advantages that firstly, the oil pump is intermittently started, avoids doing useless work, and saves a great amount of electric energy (about 98%), secondly, the oil pump is intermittently started through flexible booster, electric current slowly increases to on-load current during the starting of an electromotor, which avoids damaging the electromotor by large current caused by frequent starting of the electromotor, thirdly, the oil temperature of the system is reduced, oil temperature in an original hydraulic station which adopts a cooler is still over 55 DEG C, but the current oil temperature value is higher about five DEG C than ambient temperature while a cooler is not used, which not only saves the cooler, and enhances the service life of hydraulic elements while reducing oil temperature. .
Description
Technical field
The utility model relates to a kind of Hydraulic Power Transmission System, and especially a kind of hydraulic station motor intermittently starts power assisting device.
Background technique
Its control oil channel of program control hydraulic station (generally being the using and the reserved structure) that current China adopts is as shown in Figure 1:
Its working principle is: pump start, (electromagnetic relief valve is open in usual to electromagnetic relief valve, i.e. outage is off-load, get electric for loading) control by the time relay, behind the electric motor starting 1-5s electric, therefore drive the oil pump running when motor M starts the back, oily stream by one-way valve to electromagnetic relief valve, therefore the time electromagnetic relief valve not electric, thereby oil flows and directly flows back to fuel tank.Electromagnetic relief valve gets electric unloading valve and cuts out behind motor rotation 1-5s, and pressure oil to operating valve platform and accumulator fuel feeding, boosts system by one-way valve, and pressure gauge shows its force value, when pressure arrives default pressure when high-order, the off-load of electromagnetic relief valve dead electricity.When the near pressure of system pressure was set low level, electromagnetic relief valve got electric loading, and system pressure raises, off-load once more when arriving a high position.Pressure was reduced to this time period of low level by a high position in, the electromagnetic relief valve dead electricity was in unloading condition always, and the pressure oil stream of oil pump output all flows back to fuel tank by the overflow unloading valve.The oil pump unloading time is far longer than the load time.Because of the accumulator pressurize is arranged, the every loading of my company's ironmaking hydraulic station 15s needs off-load 15 minutes, most of fluid flows back to fuel tank through the overflow unloading valve, has not still wasted a large amount of electric energy, also makes the warm working life of significantly rising, also having shortened Sealing simultaneously because of oil temperature height of oil of hydraulic oil.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of energy-saving and cost-reducing, reduces system temperature, prolongs element working life, and the hydraulic station motor of protection motor and supply network safety intermittently starts power assisting device.
For achieving the above object, the utility model adopts following technical proposals:
A kind of hydraulic station motor intermittently starts power assisting device, comprise control oil channel, on the oil pump of control oil channel and the fuel sucking pipe between the fuel tank, an one-way valve is set, the solenoid directional control valve that is provided with in parallel on the fuel sucking pipe between oil pump and the one-way valve, oil circuit of solenoid directional control valve and the accumulator in the control oil channel are connected with oil circuit between the valve platform.
Described solenoid directional control valve is 3-position-3-way solenoid directional control valve or 3-position 4-way solenoid directional control valve.
Model utility is applicable to that all can do the hydraulic-pressure pump that oil pump can be done the oil motor use again in manual Variable plunger pump and Variable plunger pump etc.
The utlity model has following advantage:
1. oil pump intermittently starts, and has avoided oil pump to make idle work, has saved a large amount of electric energy (having saved 98% electric energy).
2. be that flexible power-assisted starts when oil pump intermittently starts, electric current is slowly to rise to loading current during starting electrical machinery, has avoided the big damage motor of motor frequent starting electric current.
3. reduced the system oil temperature, former hydraulic station uses cooler oil temperature also more than 55 degree, now without cooler oil temperature ratio ring
About high 5 degree of border temperature.Not only saved cooler, and hanged down the working life that has also strengthened hydraulic element because of oily temperature drop
The utility model is energy-saving and cost-reducing, reduces system temperature, has increased the working life of element, has also protected the safety of motor and supply network simultaneously.
Description of drawings
Fig. 1 is the hydraulic control oil circuit schematic representation in the background technique;
Fig. 2 is a hydraulic control oil circuit schematic representation of the present utility model;
Wherein 1. fuel tanks, 2. one-way valve, 3. solenoid directional control valve, 4. oil pump, 5. electromagnetic relief valve, 6. accumulator.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 2, on the oil pump 4 of control oil channel and the fuel sucking pipe between the fuel tank 1, an one-way valve 2 is set, the solenoid directional control valve 3 that is provided with in parallel on the fuel sucking pipe between oil pump 4 and the one-way valve 2, oil circuit of solenoid directional control valve 3 and the accumulator 6 in the control oil channel are connected with oil circuit between the valve platform.
Described solenoid directional control valve 3 is 3-position-3-way solenoid directional control valve or 3-position 4-way solenoid directional control valve.
Working method: when electric motor starting drives oil pump 4 runnings, oil pump 4 is inhaled opening one-way valves 2 and is flowed to electromagnetic relief valve 5, after 1 second of oil pump 4 runnings electromagnetic relief valve 5 electric off-load is closed, make system loads.When pressure rose to the system oil pressure CLV ceiling limit value, motor shut down, and electromagnetic relief valve 5 is at unloading condition.System pressure is given system's pressurize by one-way valve.
Use because of system pressure oil constantly has actuator's work, system pressure descends thereupon.When the near system oil pressure lower limit of pressure, the 3-position-3-way solenoid directional control valve gets electric communication, the pressure oil that fetch from system oil-way this moment flows into oil pump 4 inlet ports through the 3-position-3-way solenoid directional control valve and (hangs down limit value because of accumulator 6 nitrogen inflation pressures are low with system pressure, so still have partial pressure oil), because of oil pump 4 inlet port leading portions have one-way valve 2, so oil pump 4 has become the oil motor entry into service at this moment, and (this moment, electromagnetic relief valve 5 was at unloading condition, fluid flows into fuel tank 1 through oil pump 4), when running gear pump motor in 1 second gets electric (motor flexible smoothly starts), the 3-position-3-way selector valve cut out after motor got electric 1s clock, electromagnetic relief valve 5 must be electric after 1 second, system loads.System pressure is high prescribes a time limit when pressure arrives, and oil pump shuts down.When system pressure was reduced to low point of accumulation once more, restarted a service cycle.
Transform the back working condition: when system pressure was reduced to the pressure lower bound, oil pump 4 started by force aid system is flexible, the high limit of system loads 15s pressure appreciation pressure, and oil pump 4 stops.Along with the action of actuator after about 15 minutes pressure reduce to the system pressure lower bound, power-assisted is flexible once more starts for oil pump 4.
Claims (2)
1. a hydraulic station motor intermittently starts power assisting device, comprise control oil channel, it is characterized in that: on the oil pump of control oil channel and the fuel sucking pipe between the fuel tank, an one-way valve is set, the solenoid directional control valve that is provided with in parallel on the fuel sucking pipe between oil pump and the one-way valve, oil circuit of solenoid directional control valve and the accumulator in the control oil channel are connected with oil circuit between the valve platform.
2. hydraulic station motor according to claim 1 intermittently starts power assisting device, it is characterized in that: described solenoid directional control valve is 3-position-3-way solenoid directional control valve or 3-position 4-way solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203111195U CN201507505U (en) | 2009-09-23 | 2009-09-23 | Hydraulic station electromotor intermittent starting booster unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203111195U CN201507505U (en) | 2009-09-23 | 2009-09-23 | Hydraulic station electromotor intermittent starting booster unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507505U true CN201507505U (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203111195U Expired - Fee Related CN201507505U (en) | 2009-09-23 | 2009-09-23 | Hydraulic station electromotor intermittent starting booster unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507505U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966637A (en) * | 2012-11-19 | 2013-03-13 | 党金行 | Intermittent hydraulic system |
| CN102966608A (en) * | 2012-11-16 | 2013-03-13 | 无锡汇虹机械制造有限公司 | Energy saving method of intermittent motion hydraulic machinery |
| CN102966636A (en) * | 2012-11-16 | 2013-03-13 | 无锡汇虹机械制造有限公司 | Hydraulic device energy saving method capable of effectively reducing starting large current |
| CN103466451A (en) * | 2013-09-12 | 2013-12-25 | 尤洛卡矿业安全工程股份有限公司 | Control device for diesel single-rail crane |
| CN107060672A (en) * | 2017-03-10 | 2017-08-18 | 南阳市亚华石油机械有限公司 | Surge mud gate valve control method |
| CN107420356A (en) * | 2017-05-26 | 2017-12-01 | 中冶赛迪装备有限公司 | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves |
-
2009
- 2009-09-23 CN CN2009203111195U patent/CN201507505U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966608A (en) * | 2012-11-16 | 2013-03-13 | 无锡汇虹机械制造有限公司 | Energy saving method of intermittent motion hydraulic machinery |
| CN102966636A (en) * | 2012-11-16 | 2013-03-13 | 无锡汇虹机械制造有限公司 | Hydraulic device energy saving method capable of effectively reducing starting large current |
| CN102966637A (en) * | 2012-11-19 | 2013-03-13 | 党金行 | Intermittent hydraulic system |
| CN103466451A (en) * | 2013-09-12 | 2013-12-25 | 尤洛卡矿业安全工程股份有限公司 | Control device for diesel single-rail crane |
| CN103466451B (en) * | 2013-09-12 | 2015-07-22 | 尤洛卡矿业安全工程股份有限公司 | Control device for diesel single-rail crane |
| CN107060672A (en) * | 2017-03-10 | 2017-08-18 | 南阳市亚华石油机械有限公司 | Surge mud gate valve control method |
| CN107420356A (en) * | 2017-05-26 | 2017-12-01 | 中冶赛迪装备有限公司 | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20140923 |
|
| EXPY | Termination of patent right or utility model |