CN202431627U - Energy-saving hydraulic station - Google Patents
Energy-saving hydraulic station Download PDFInfo
- Publication number
- CN202431627U CN202431627U CN2012200019856U CN201220001985U CN202431627U CN 202431627 U CN202431627 U CN 202431627U CN 2012200019856 U CN2012200019856 U CN 2012200019856U CN 201220001985 U CN201220001985 U CN 201220001985U CN 202431627 U CN202431627 U CN 202431627U
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- China
- Prior art keywords
- low pressure
- oil
- valve
- oil pump
- way
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Operation Control Of Excavators (AREA)
Abstract
An energy-saving hydraulic station is provided with a low pressure oil pump and a high pressure oil pump which are connected with a motor. An oil discharging port of the high pressure oil pump is connected with an oil supply pipeline, an oil discharging port of the low pressure oil pump is connected with the oil supply pipeline through a two-way cartridge valve, connected with an oil return pipeline communicated with an oil tank through an unloading loop and connected with a low pressure energy accumulator through a first one-way valve, and the low pressure energy accumulator is connected with the oil supply pipeline through a release control loop and a second one-way valve. When the motor is started, the low pressure oil pump and the high pressure oil pump begin to supply oil to a system. When the system pressure rises to the rated pressure of the low pressure oil pump, the low pressure oil pump supplies the oil to the low pressure energy accumulator, the low pressure energy accumulator accumulates energy, and the high pressure oil pump supplies the oil to the system separately. When the pressure of the low pressure energy accumulator and the rated pressure of the low pressure oil pump are balanced, the low pressure oil pump performs unloading. When the low pressure energy accumulator is needed, the low pressure energy accumulator is connected with the oil supply pipeline through the release control loop.
Description
Technical field
The utility model relates to the hydraulic station in the hydraulic system of hydraulic equipment.
Background technique
Hydraulic station in the hydraulic system of existing one type of hydraulic equipment mainly is made up of low pressure fuel pump, high pressure oil pump, motor, fuel tank, two-way plug-in valve, relief circuit etc.; This hydraulic station at work; When system pressure rises to the rated pressure of low pressure fuel pump; Low pressure fuel pump is given system's fuel feeding through the relief circuit off-load separately by high pressure oil pump.The deficiency that existing this hydraulic station exists is: low pressure fuel pump is not utilized preferably, and the motor power waste is bigger; Power to load oil hydraulic cylinder in the hydraulic system is provided is insufficient.
The model utility content
The purpose of the utility model is to provide a kind of energy-conserving hydraulic station, and the low pressure fuel pump of this hydraulic station can be fully utilized, and then can make the power of motor reduce, and sufficient power can be provided the oil hydraulic cylinder in the hydraulic system.
For realizing above-mentioned purpose; The utility model adopts following scheme: the energy-conserving hydraulic station; Have low pressure fuel pump and high pressure oil pump, low pressure fuel pump and high pressure oil pump connect with motor, and the oil drain out and the oil feed line of high pressure oil pump join; The oil drain out of low pressure fuel pump joins through two-way plug-in valve and oil feed line; The oil drain out of low pressure fuel pump joins through the return line of low pressure relief circuit and logical fuel tank, and the oil drain out of low pressure fuel pump joins through first one-way valve and low pressure accumulator, and the oil outlet of low pressure accumulator joins through discharging the control loop and second one-way valve and oil feed line.
Visible by such scheme, starting electrical machinery, low pressure fuel pump and high pressure oil pump begin to boost and pass through oil feed line jointly to system's fuel feeding; When system pressure rose to the rated pressure of low pressure fuel pump, two-way plug-in valve was closed, and low pressure fuel pump is to the low pressure accumulator fuel feeding; Carry out accumulation of energy by low pressure accumulator; High pressure oil pump is then given system's fuel feeding separately, and when the rated pressure of the pressure of low pressure accumulator and low pressure fuel pump reached balance, low pressure fuel pump passed through low pressure relief circuit off-load; When needs use low pressure accumulator, low pressure accumulator and oil feed line are connected by discharging control loop.
This use new structure is reasonable, reliable performance, and it can make that low pressure fuel pump is fully utilized, and then reduces the power consumption of motor, and is energy-conservation to realize; It can improve the movement speed of each load oil hydraulic cylinder, and then increase work efficiency and quality of processing for system provides more sufficient power.
Description of drawings
Accompanying drawing is the utility model one embodiment's a structural representation.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing.
Referring to accompanying drawing
The energy-conserving hydraulic station that the utility model provides has low pressure fuel pump 2 and high pressure oil pump 1; Low pressure fuel pump 2 connects with motor 3 with high pressure oil pump 1; The oil drain out of high pressure oil pump 1 and oil feed line 16 join; The oil drain out of low pressure fuel pump 2 joins through two-way plug-in valve 14 and oil feed line 16, and the oil drain out of low pressure fuel pump 2 joins through the return line 17 of low pressure relief circuit and logical fuel tank 7.The low pressure relief circuit is connected to form by damped type two-way plug-in valve 12, pilot operated compound relief valve 11, two position four-way solenoid valves 10.Be connected to oil pressure gauge 13 between low pressure fuel pump 2 and low pressure relief circuit.
The oil drain out of low pressure fuel pump 2 joins with low pressure accumulator 5 through first one-way valve 4, and the oil outlet of low pressure accumulator 5 joins through discharging the control loop and second one-way valve 8 and oil feed line 16.Discharge control loop and have two-way plug-in valve 6 and two position four-way solenoid valves 9; Two-way plug-in valve 6 and two position four-way solenoid valves 9 join; The return opening of two position four-way solenoid valves 9 and fuel tank 7 join; The filler opening of the oil outlet of low pressure accumulator 5 and two-way plug-in valve 6 joins, and the oil outlet of two-way plug-in valve 6 joins with oil feed line 16 through second one-way valve 8, between oil feed line 14 and return line 15, is connected to pilot operated compound relief valve 15.
Visible by accompanying drawing, starting electrical machinery 3, low pressure fuel pump 2 begin to boost with high pressure oil pump 1 and jointly to oil feed line 16 fuel feeding; And through oil feed line 16 and three position four-way electromagnetic valve 18 to the hydraulic system fuel feeding; When system pressure rose to the rated pressure of low pressure fuel pump 2, two-way plug-in valve 14 was closed, and low pressure fuel pump 2 is to low pressure accumulator 5 fuel feeding; Carry out accumulation of energy by low pressure accumulator 5,1 of high pressure oil pump is given system's fuel feeding separately; When the rated pressure of the pressure of low pressure accumulator 5 and low pressure fuel pump 2 reached balance, low pressure fuel pump was through low pressure relief circuit off-load; When needs use accumulator 5, two position four-way solenoid valves 9 and fuel tank 7 to be connected, the oil outlet of two-way plug-in valve 6 is opened, and low pressure accumulator 5 is connected with oil feed line 16.In addition, after the oil hydraulic cylinder motion of load in the system puts in place, the system delay outage, three position four-way electromagnetic valve 18 is closed, and pilot operated compound relief valve 15,11 is opened, and whole hydraulic system off-load when next one action beginning, repeats above-mentioned cyclic process.
This hydraulic station mesolow accumulator setting, can reach following good effect:
1, identical down at equipment tonnage, can reduce the power of motor, to realize energy-conservation 30 ~ 50%;
2, after low pressure accumulator discharged, it can improve the movement speed of each load oil hydraulic cylinder for system provides more sufficient power.
In addition, this hydraulic station is particularly useful in the hydraulic system of die casting machine.This hydraulic station is used for the hydraulic system of die casting machine, when slow shot provides power, can slow shot speed be improved by low pressure accumulator; Low pressure accumulator discharges after the raising of slow shot speed, can improve work efficiency first, second helps the raising of quality of die casting; Simultaneously; Metal liquid was shortened by the time that injection chamber gets in the mold cavity, reduce the difference variation of metal liquid, and then can suitably reduce the temperature of metal liquid; Can reduce the consumption of processing metal liquid fuel thus, reach the effect of energy-saving and emission-reduction.
Claims (3)
1. energy-conserving hydraulic station; Have low pressure fuel pump (2) and high pressure oil pump (1); Low pressure fuel pump (2) and high pressure oil pump (1) connect with motor (3); The oil drain out of high pressure oil pump (1) and oil feed line (16) join; The oil drain out of low pressure fuel pump (2) joins through two-way plug-in valve (14) and oil feed line (16); It is characterized in that: the oil drain out of low pressure fuel pump (2) joins through the return line (17) of low pressure relief circuit and logical fuel tank (7), and the oil drain out of low pressure fuel pump (2) joins through first one-way valve (4) and low pressure accumulator (5), and the oil outlet of low pressure accumulator (5) joins with oil feed line (16) through discharging control loop and second one-way valve (8).
2. energy-conserving hydraulic according to claim 1 station is characterized in that: the low pressure relief circuit is connected to form by damped type two-way plug-in valve (12), pilot operated compound relief valve (11), two position four-way solenoid valves (10).
3. energy-conserving hydraulic according to claim 1 station; It is characterized in that: discharge control loop and have two-way plug-in valve (6) and two position four-way solenoid valves (9); Two-way plug-in valve (6) joins with two position four-way solenoid valves (9); The return opening of two position four-way solenoid valves (9) and fuel tank (7) join; The filler opening of the oil outlet of low pressure accumulator (5) and two-way plug-in valve (6) joins, and the oil outlet of two-way plug-in valve (6) joins through second one-way valve (8) and oil feed line (16), between oil feed line (16) and return line (17), is connected to pilot operated compound relief valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200019856U CN202431627U (en) | 2012-01-05 | 2012-01-05 | Energy-saving hydraulic station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200019856U CN202431627U (en) | 2012-01-05 | 2012-01-05 | Energy-saving hydraulic station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431627U true CN202431627U (en) | 2012-09-12 |
Family
ID=46781074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200019856U Expired - Lifetime CN202431627U (en) | 2012-01-05 | 2012-01-05 | Energy-saving hydraulic station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431627U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418719A (en) * | 2012-01-05 | 2012-04-18 | 蚌埠市淮海压铸机有限责任公司 | Energy-saving hydraulic station |
| CN105422519A (en) * | 2015-12-21 | 2016-03-23 | 北京机械设备研究所 | Integrated small embedded hydraulic oil source |
| CN105649766A (en) * | 2016-01-21 | 2016-06-08 | 杨炳 | Geological sampling device with high output torque and low noise |
| CN108825564A (en) * | 2018-07-05 | 2018-11-16 | 方碧水 | A kind of stable energy recovery system and the excavator with the system |
-
2012
- 2012-01-05 CN CN2012200019856U patent/CN202431627U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418719A (en) * | 2012-01-05 | 2012-04-18 | 蚌埠市淮海压铸机有限责任公司 | Energy-saving hydraulic station |
| CN102418719B (en) * | 2012-01-05 | 2015-06-17 | 蚌埠市淮海压铸机有限责任公司 | Energy-saving hydraulic station |
| CN105422519A (en) * | 2015-12-21 | 2016-03-23 | 北京机械设备研究所 | Integrated small embedded hydraulic oil source |
| CN105422519B (en) * | 2015-12-21 | 2017-03-01 | 北京机械设备研究所 | A kind of integration of compact embedded type hydraulic oil sources |
| CN105649766A (en) * | 2016-01-21 | 2016-06-08 | 杨炳 | Geological sampling device with high output torque and low noise |
| CN105649766B (en) * | 2016-01-21 | 2021-04-20 | 南京溧水高新创业投资管理有限公司 | Geological sampling device with high output torque and low noise |
| CN108825564A (en) * | 2018-07-05 | 2018-11-16 | 方碧水 | A kind of stable energy recovery system and the excavator with the system |
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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: 20120912 |