CN202971420U - Hydraulic energy-saving device - Google Patents
Hydraulic energy-saving device Download PDFInfo
- Publication number
- CN202971420U CN202971420U CN 201220650473 CN201220650473U CN202971420U CN 202971420 U CN202971420 U CN 202971420U CN 201220650473 CN201220650473 CN 201220650473 CN 201220650473 U CN201220650473 U CN 201220650473U CN 202971420 U CN202971420 U CN 202971420U
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Abstract
The utility model relates to a hydraulic energy-saving device, which comprises a hydraulic device, a control device and an output device, wherein the hydraulic device comprises a pump and a pressure sensor capable of measuring the pressured output by the pump, and is provided with a valve which is arranged on the pump and can be switched between a first position and a second position, the flow of the pump is reduced when the valve is switched to the first position, and the flow of the pump is increased when the valve is switched to the second position; the control device is connected with the hydraulic device and is provided with a motor, and the motor is connected with the pump; the control device also comprises a drive controller which is simultaneously connected with the pressure sensor and the motor and can control the rotating speed of the motor through signals of the pressure sensor, and the motor rotates at a speed higher than the preset rotating speed; and the output device is connected with the hydraulic device. According to the hydraulic device, the acceleration time of the motor from low speed to high speed can be effectively reduced, and the use efficiency of the hydraulic energy-saving device is improved.
Description
Technical field
The utility model mainly discloses a kind of energy saving device, espespecially a kind of energy saving device of hydraulic system.
Background technique
The most easy existing hydraulic system is after utilizing a metering pump with the pressurization of the oil in fuel tank, after controlling for the user via control valve, can make to be driven the action of making appointment, yet when using metering pump, no matter whether to be driven action, the motor of metering pump rotates all at full speed, in the situation that to be driven not action, do not consume pressure, the motor of metering pump rotates at full speed and metering pump extracts oil in fuel tank with peak rate of flow, constantly but there is no actual job at consumed energy fast always, there is no production capacity, and form a kind of waste of energy.
For this reason, people in technical field develops a kind of variable displacement pump, after variable displacement pump is drawn the oil in fuel tank and is forced into predetermined pressure, control unit in variable displacement pump can the controlled variable pump flow, the flow of variable displacement pump is reduced, avoid the constantly high pressure oil of the large flow of output of variable displacement pump, thereby avoid unnecessary waste.
Yet above-mentioned way, even after variable displacement pump arrives predetermined pressure, flow reduces immediately, the motor in variable displacement pump still can be with High Rotation Speed, thereby the energy-saving benefit that can reach is lower.
Separately, people in the art has another way, be installing pressure transducer cooperation speed probe in oil circuit, and with the rotating speed of the motor in frequency variator or driver control metering pump, after metering pump is drawn the oil in fuel tank and is forced into predetermined pressure, can be through transmission of signal after the pressure transducer perception to the Speed sensing device, and then drive the rotating speed that frequency variator can be controlled motor, and then motor is slowed down, make metering pump maintain packing state and do not continue supercharging.
Yet above-mentioned way, after even metering pump arrives predetermined pressure, frequency variator is controlled immediately motor rotating speed is reduced, and metering pump is still done low-speed running pressurize action, the waste of the deficiency of torsion and excess energy in the time of still can causing motor low speed with the discharge flow of former metering pump.
And metering pump coordinates pressure and rotating speed perceptron to do VFC needs high reaction motor and more control unit to cause the too high energy efficiency promotion of cost to be difficult for.
The model utility content
Its main purpose of the utility model hydraulic energy-saving device is, a kind of hydraulic system that can control simultaneously pump duty and motor rotary speed is provided, and motor maintains the above rotation of desired speed, make hydraulic energy-saving device can reach dual energy-saving effect, and the effect that can reach is higher than using separately variable displacement pump or both summations of inverter motor, while is with pressurization or the packing state of double mechanism conversion hydraulic energy-saving device, make hydraulic energy-saving device state conversion reaction speed of the present utility model fast, and stable output.
Its main purpose of the utility model hydraulic energy-saving device is, provide a kind of motor to maintain the hydraulic energy-saving device of the above rotation of desired speed, can effectively reduce motor and accelerate to the time at a high speed by low speed, increase the utilization efficiency of hydraulic energy-saving device, avoid hydraulic energy-saving device the decompression state to occur when high low pressure is changed, increase working efficiency.
A kind of hydraulic energy-saving device of the present utility model, it includes: a hydraulic pressure installation, this hydraulic pressure installation includes a pump and a pressure transducer, this pressure transducer can measure the pressure that this pump is exported, this hydraulic pressure installation has a valve, and this valve is located at this pump, and this valve can switch between primary importance and the second place, when this valve switches to primary importance, the flow of this pump reduces, and this valve switches to the second place increases the flow of this pump; A control gear, this control gear is connected in this hydraulic pressure installation, this control gear has a motor, this motor is connected in this pump, this control gear also includes a drive controller, this drive controller is connected in this pressure transducer and this motor simultaneously, and this drive controller can according to the rotating speed of this motor of SC sigmal control of this pressure transducer, maintain the above rotation of desired speed with this motor;
An output unit, this output unit is connected in this hydraulic pressure installation.
Wherein:
this pressure transducer has a pressure recognizer, this pressure recognizer can be differentiated the pressure of this pump higher or lower than predetermined pressure, signal and while output signal that this drive controller can receive this pressure recognizer drive this revolution, this drive controller is controlled this motor can switch the rotating speed of this motor between the first rotating speed and the second rotating speed, this motor when the first rotating speed with low speed rotation, this motor when the second rotating speed with High Rotation Speed, the pressure of this pump is during higher than predetermined pressure, this motor switches to the first rotating speed, the pressure of this pump is during lower than predetermined pressure, this motor switches to the second rotating speed.
this hydraulic pressure installation also includes a flow dontroller and a pressure flow hybrid control valve, this flow dontroller is connected in this valve, this pressure flow hybrid control valve is connected in this pump and this flow dontroller simultaneously, this pressure flow hybrid control valve has a pressure setting device, this pressure setting device can be set predetermined pressure, the pressure of exporting when this pump is higher than predetermined pressure, this pressure setting device can be controlled this pressure flow hybrid control valve events, this pressure flow hybrid control valve can drive this flow dontroller, make this valve switch to primary importance, if the pressure that this pump is exported is lower than predetermined pressure, this pressure setting device is controlled this pressure flow hybrid control valve and is stopped action, this pressure flow hybrid control valve stops driving this flow dontroller, make this valve switch to the second place.
This hydraulic pressure installation also includes an oil spilling hole, and after this pressure flow hybrid control valve drives this flow dontroller action, unnecessary oil will be by this oil spilling orifice flow oil sump tank.
This output unit includes a control valve and a break, and this control valve is connected in this pump, and this break is connected in this control valve.
This valve is provided with an elastic component, and this elastic component can be controlled this valve and remain on normally open.
Useful technique effect of the present utility model is:
1. the utility model hydraulic energy-saving device, wherein can control simultaneously the hydraulic system of pumping flow and motor rotary speed, make hydraulic energy-saving device can reach dual energy-saving effect, and the effect that can reach is higher than using separately variable pumping or both summations of inverter motor, while is with pressurization or the packing state of double mechanism conversion hydraulic energy-saving device, make hydraulic energy-saving device state conversion reaction speed of the present utility model fast, and stable output.
2. the utility model hydraulic energy-saving device, wherein motor maintains the above rotation of desired speed, can effectively reduce motor and accelerate to the time at a high speed by low speed, increases the utilization efficiency of hydraulic energy-saving device, avoid hydraulic energy-saving device the decompression state to occur when high low pressure is changed, increase working efficiency.
Description of drawings
Fig. 1: be the pressurized state oil circuit schematic diagram of the utility model hydraulic energy-saving device.
Fig. 2: be the packing state oil circuit schematic diagram of the utility model hydraulic energy-saving device.
[primary clustering symbol description]
10 energy saving devices
20 hydraulic pressure installation 21 pumps
22 pressure transducer 23 valves
24 elastic component 25 flow dontrollers
26 pressure flow hybrid control valve 27 pressure setting devices
28 oil spilling holes
30 control gear 31 motors
32 drive controller 33 pressure recognizers
40 output unit 41 control valves
42 breaks
90 fuel tanks.
Embodiment
With reference to Figure 1 and Figure 2, be pipeline allocation plan and the action schematic diagram of the utility model hydraulic energy-saving device.The utility model energy saving device 10 includes a hydraulic pressure installation 20, a control gear 30 and an output unit 40; Wherein:
This hydraulic pressure installation 20 is variable displacement pump, and this hydraulic pressure installation 20 includes a pump 21 and a pressure transducer 22, and this pressure transducer 22 can measure the pressure that this pump 21 is exported.This hydraulic pressure installation 20 has a valve 23, this valve 23 is located at this pump 21, and this valve 23 can be controlled the flow of this pump 21, and this valve 23 is provided with an elastic component 24, this elastic component 24 can be controlled this valve 23 and remain on normally open, and this pump 21 is exported with peak rate of flow.
This hydraulic pressure installation 20 also includes a flow dontroller 25 and a pressure flow hybrid control valve 26, and this flow dontroller 25 is connected in this valve 23, so that this valve 23 can switch between primary importance and the second place.This pressure flow hybrid control valve 26 is connected in this pump 21 and this flow dontroller 25 simultaneously, and this pressure flow hybrid control valve 26 has a pressure setting device 27, and this pressure setting device 27 can be set predetermined pressure.
The pressure of exporting when this pump 21 is higher than predetermined pressure, this pressure setting device 27 can be controlled this pressure flow hybrid control valve 26 actions, this pressure flow hybrid control valve 26 can drive this flow dontroller 25, switches to control this valve 23 the flow minimizing that primary importance makes this pump 21.If the pressure that this pump 21 is exported is lower than predetermined pressure, 27 of this pressure setting devices are controlled this pressure flow hybrid control valve 26 and are stopped action, this pressure flow hybrid control valve 26 stops driving this flow dontroller 25, and this elastic component 24 can drive this valve 23 and switch to the flow increase that the second place makes this pump 21.
This hydraulic pressure installation 20 also includes an oil spilling hole 28, and this pressure flow hybrid control valve 26 drives oil unnecessary after these flow dontroller 25 actions will flow back to fuel tank 90 by this oil spilling hole 28.
This control gear 30 is connected in this hydraulic pressure installation 20, and this control gear 30 has a motor 31, and this motor 31 is connected in this pump 21 and can drives this pump 21 and draw the oil in fuel tanks 90 and the rear output of pressurizeing.This control gear 30 also includes a drive controller 32, and this drive controller 32 is connected in this pressure transducer 22 and this motor 31 simultaneously, and this drive controller 32 can be according to the rotating speed of this motor 31 of SC sigmal control of this pressure transducer 22.This pressure transducer 22 has a pressure recognizer 33, and this pressure recognizer 33 can be differentiated the pressure of this pump 21 higher or lower than predetermined pressure.
Signal and while output signal that this drive controller 32 can receive this pressure recognizer 33 drive this motor 31 rotations, this drive controller 32 is controlled this motor 31 can switch the rotating speed of this motor 31 between the first rotating speed and the second rotating speed, this motor 31 when the first rotating speed with low speed rotation, this motor 31 when the second rotating speed with High Rotation Speed.
This output unit 40 is connected in this hydraulic pressure installation 20, and this output unit 40 includes a control valve 41 and a break 42.This control valve 41 is connected in this pump 21, and this break 42 is connected in this control valve 41, and the user can operate this control valve 41 makes this break 42 utilize the pressure that this pump 21 provides and make corresponding action.
When motor 31 these pumps 21 of drive of this hydraulic pressure installation 20 were forced into predetermined pressure, this pressure setting device 27 can be controlled this pressure flow hybrid control valve 26 actions.This pressure flow hybrid control valve 26 can drive this flow dontroller 25, switches to control this valve 23 the flow minimizing that primary importance makes this pump 21, and reaches energy-conservation effect.Simultaneously the pressure recognizer 33 of this pressure transducer 22 determine this pump 21 pressure higher than predetermined pressure after, this drive controller 32 can receive the signal of this pressure recognizer 33 and output signal makes this motor 31 switch to the first rotating speed, make this motor 31 slowly running, and reach dual energy-conservation effect.
And when controlling this motor 31 with the first rotating speed rotation because of this drive controller 32, this motor 31 still can maintain desired speed, reduces the time that this motor 31 switches to the second rotational speed.When the pressure of this pump 21 during lower than predetermined pressure, this pressure setting device 27 can be controlled this pressure flow hybrid control valve 26 actions, this pressure flow hybrid control valve 26 can drive this flow dontroller 25, switches to control this valve 23 the flow increase that the second place makes this pump 21.And when switching to the second place because of this valve 23, this motor 31 still maintains desired speed, and the pressure drop that can effectively avoid this pump 21 to export increases the stability of this energy saving device 10.
Simultaneously the pressure recognizer 33 of this pressure transducer 22 determine this pump 21 pressure lower than predetermined pressure after, this drive controller 32 can receive the signal of this pressure recognizer 33 and output signal makes this motor 31 switch to fast the second rotating speed, make this motor 31 with high speed rotating, so that this energy saving device 10 has advantages of that simultaneously reaction velocity is fast.When this output unit 40 underpressure, this flow dontroller 25 and this drive controller 32 can order about respectively the pump 21 of this hydraulic pressure installation 20 and the quick supplementary pressure of motor 31 simultaneously for this output unit 40.And because of this pressure setting device 27 and this pressure transducer 22 all this pump 21 of an interpretation whether arrive predetermined pressure, and this drive controller 32 also only controls this motor 31 and carries out switching between the first rotating speed and the second rotating speed, makes this energy saving device 10 have advantages of processing ease.
Can summarize with regard to the above and the utlity model has following advantage:
1. be the utility model hydraulic energy-saving device, wherein can control simultaneously the hydraulic system of pump duty and motor rotary speed, make hydraulic energy-saving device can reach dual energy-saving effect, and the effect that can reach is higher than using separately variable displacement pump or both summations of inverter motor, while is with pressurization or the packing state of double mechanism conversion hydraulic energy-saving device, make hydraulic energy-saving device state conversion reaction speed of the present utility model fast, and stable output.
2. be the utility model hydraulic energy-saving device, wherein motor maintains the above rotation of desired speed, can effectively reduce motor and accelerate to the time at a high speed by low speed, increase the utilization efficiency of hydraulic energy-saving device, avoid hydraulic energy-saving device the decompression state to occur when high low pressure is changed, increase working efficiency.
Just above-described, be only preferred embodiment of the present utility model, when not limiting the utility model practical range with this; Therefore all simple equivalences of doing according to the utility model claim and creation description change and modify, all should still belong in the scope that the utility model patent contains.
Claims (6)
1. a hydraulic energy-saving device, is characterized in that, includes:
A hydraulic pressure installation, this hydraulic pressure installation includes a pump and a pressure transducer, this pressure transducer can measure the pressure that this pump is exported, this hydraulic pressure installation has a valve, this valve is located at this pump, this valve can switch between primary importance and the second place, and when this valve switches to primary importance, the flow of this pump reduces, and this valve switches to the second place increases the flow of this pump;
A control gear, this control gear is connected in this hydraulic pressure installation, this control gear has a motor, this motor is connected in this pump, this control gear also includes a drive controller, this drive controller is connected in this pressure transducer and this motor simultaneously, and this drive controller can according to the rotating speed of this motor of SC sigmal control of this pressure transducer, maintain the above rotation of desired speed with this motor;
An output unit, this output unit is connected in this hydraulic pressure installation.
2. hydraulic energy-saving device as claimed in claim 1, it is characterized in that, this pressure transducer has a pressure recognizer, this pressure recognizer can be differentiated the pressure of this pump higher or lower than predetermined pressure, signal and while output signal that this drive controller can receive this pressure recognizer drive this revolution, this drive controller is controlled this motor can switch the rotating speed of this motor between the first rotating speed and the second rotating speed, this motor when the first rotating speed with low speed rotation, this motor when the second rotating speed with High Rotation Speed, the pressure of this pump is during higher than predetermined pressure, this motor switches to the first rotating speed, the pressure of this pump is during lower than predetermined pressure, this motor switches to the second rotating speed.
3. hydraulic energy-saving device as claimed in claim 2, it is characterized in that, this hydraulic pressure installation also includes a flow dontroller and a pressure flow hybrid control valve, this flow dontroller is connected in this valve, this pressure flow hybrid control valve is connected in this pump and this flow dontroller simultaneously, this pressure flow hybrid control valve has a pressure setting device, this pressure setting device can be set predetermined pressure, the pressure of exporting when this pump is higher than predetermined pressure, this pressure setting device can be controlled this pressure flow hybrid control valve events, this pressure flow hybrid control valve can drive this flow dontroller, make this valve switch to primary importance, if the pressure that this pump is exported is lower than predetermined pressure, this pressure setting device is controlled this pressure flow hybrid control valve and is stopped action, this pressure flow hybrid control valve stops driving this flow dontroller, make this valve switch to the second place.
4. hydraulic energy-saving device as claimed in claim 2, is characterized in that, this hydraulic pressure installation also includes an oil spilling hole, and after this pressure flow hybrid control valve drives this flow dontroller action, unnecessary oil will be by this oil spilling orifice flow oil sump tank.
5. hydraulic energy-saving device as claimed in claim 2, is characterized in that, this output unit includes a control valve and a break, and this control valve is connected in this pump, and this break is connected in this control valve.
6. hydraulic energy-saving device as claimed in claim 2, is characterized in that, this valve is provided with an elastic component, and this elastic component can be controlled this valve and remain on normally open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650473 CN202971420U (en) | 2012-11-30 | 2012-11-30 | Hydraulic energy-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650473 CN202971420U (en) | 2012-11-30 | 2012-11-30 | Hydraulic energy-saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971420U true CN202971420U (en) | 2013-06-05 |
Family
ID=48512504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220650473 Expired - Fee Related CN202971420U (en) | 2012-11-30 | 2012-11-30 | Hydraulic energy-saving device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202971420U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108431412A (en) * | 2015-11-06 | 2018-08-21 | 克诺尔轨道车辆系统有限公司 | Hydraulic device |
| CN111108292A (en) * | 2017-09-29 | 2020-05-05 | 川崎重工业株式会社 | Hydraulic system |
| CN114430881A (en) * | 2019-09-30 | 2022-05-03 | 大金工业株式会社 | Motor driving method and motor driving device |
-
2012
- 2012-11-30 CN CN 201220650473 patent/CN202971420U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108431412A (en) * | 2015-11-06 | 2018-08-21 | 克诺尔轨道车辆系统有限公司 | Hydraulic device |
| CN108431412B (en) * | 2015-11-06 | 2021-01-01 | 克诺尔轨道车辆系统有限公司 | Hydraulic device |
| US11085428B2 (en) | 2015-11-06 | 2021-08-10 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Hydraulic device |
| CN111108292A (en) * | 2017-09-29 | 2020-05-05 | 川崎重工业株式会社 | Hydraulic system |
| CN111108292B (en) * | 2017-09-29 | 2022-04-29 | 川崎重工业株式会社 | Hydraulic system |
| CN114430881A (en) * | 2019-09-30 | 2022-05-03 | 大金工业株式会社 | Motor driving method and motor driving device |
| US11736050B2 (en) | 2019-09-30 | 2023-08-22 | Daikin Industries, Ltd. | Motor drive method and motor drive apparatus |
| US11750131B2 (en) | 2019-09-30 | 2023-09-05 | Daikin Industries, Ltd. | Motor drive method and motor drive apparatus |
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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: 20130605 Termination date: 20171130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |