CN205001294U - Energy -concerving and environment -protective type hydraulic control system - Google Patents
Energy -concerving and environment -protective type hydraulic control system Download PDFInfo
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- CN205001294U CN205001294U CN201520722257.8U CN201520722257U CN205001294U CN 205001294 U CN205001294 U CN 205001294U CN 201520722257 U CN201520722257 U CN 201520722257U CN 205001294 U CN205001294 U CN 205001294U
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- 238000001514 detection method Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
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Abstract
The utility model discloses an energy -concerving and environment -protective type hydraulic control system, including converter, pressure sensor, flow sensor, AC motor, constant delivery pump, proportional control module and actuating mechanism, pressure sensor and flow sensor are connected with actuating mechanism respectively, converter pressure sensor, flow sensor and AC motor is respectively connected for according to the signal of pressure sensor and flow sensor feedback, the closed -loop control of realization AC motor rotational speed, AC motor is connected with the constant delivery pump for drive the constant delivery pump, according to the rotary speed control of converter, thus the pressure and the flow output of control constant delivery pump, constant delivery pump, proportional control module and actuating mechanism connect gradually. The utility model discloses a hydraulic control system compact structure, reliable operation are easily controlled and are adjusted, and the energy utilization that can improve hydraulic breaker, lathe hydraulic pressure and metallurgical equipment etc. Is greatly rateed, has higher price / performance ratio.
Description
Technical field
The utility model relates to a kind of hydraulic control system, and especially a kind of energy saving and environment friendly hydraulic control system, belongs to technical field of hydraulic.
Background technique
Energy-conservation be one of main direction of studying in hydraulic power transmission always, the energy saving research great majority in tradition energy-saving hydraulic loop are all consider from the angle of hydraulic system itself, these measures of power consumpiton making great efforts to reduce hydraulic system self comprise the power consumpiton reducing hydraulic element, oil hydraulic circuit reasonable in design reduces the pressure loss in loop as far as possible and flow loss improves the power efficiency of complete machine as various forms of volumetric void fraction loop, pressure adaptation control loop, flow suitable solution loop and power suitable solution loop, and design various forms of accumulator loop and secondary regulation hydraulic system.Its object is exactly that the power managing to accomplish that hydraulic system provides and the power required for the load power efficiency improving hydraulic system that matches reaches energy-conservation object.
The shortcomings such as traditional tyre crusher adopts mechanically operated mode, and its complex structure, volume are large, lubrication and cooling weak effect, motion frequency are low and stroke is little.
Along with the whole society to the attention of environmental protection day by day increase and the earth on limited resources slow consumption totally, people start to conduct extensive research from aspects such as reducing plant capacity consumes, the recycling of waste resource, have developed various energy-saving environmental protection device.Improve the quality level of similar numerical control machine tool, waste-tyre disintegrator and some other metallurgical equipment and reduce energy dissipation, one of crucial is the q&r improving numerical control system supporting with it, servo-system, detection system, hydraulic pressure, the functional part such as electric.Modern NC Machine Tool and hydraulic breaker, in the Automatic Control realizing complete machine, except numerical control system, also need outfit hydraulic pressure and pneumatic actuator to assist the AutoPlay function realizing complete machine.
Model utility content
The purpose of this utility model is the defect in order to solve above-mentioned prior art, provide a kind of energy saving and environment friendly hydraulic control system, this hydraulic control system compact structure, reliable operation, be easy to control and regulate, greatly can improve the energy utilization rate of hydraulic breaker, machine tool hydraulic and metallurgical equipment etc., there is higher cost performance.
The purpose of this utility model can reach by taking following technological scheme:
A kind of energy saving and environment friendly hydraulic control system, comprise frequency variator, pressure transducer, flow transducer, AC motor, metering pump and actuator, described pressure transducer is connected with actuator respectively with flow transducer; Described frequency variator respectively pressure transducer, flow transducer is connected with AC motor, for the signal according to pressure transducer and flow transducer feedback, realizes the closed loop control of AC motor rotating speed; Described AC motor is connected with metering pump, and for driving metering pump, the rotating speed according to frequency variator controls, thus controls pressure and the flow output of metering pump; Described metering pump is connected with actuator.
As a kind of embodiment, also comprise proportional control module, described proportional control model calling between metering pump and actuator, for flow and the Output pressure of further accuracy-control system.
As a kind of embodiment, described proportional control module comprises Proportional valve, selector valve and pressure valve and auxiliary hydraulic pressure element.
As a kind of embodiment, described actuator is the load of system.
As a kind of embodiment, described pressure transducer is the pressure transducer of analog output, for detection system pressure, and feeds back to frequency variator.
As a kind of embodiment, described flow transducer is the flow transducer of analog output, for detection system flow, and feeds back to frequency variator.
The utility model has following beneficial effect relative to prior art:
1, hydraulic control system of the present utility model passes through frequency variator, the closed loop control of AC motor rotating speed can be realized, because the rotating speed of AC motor and the pressure of system and flow exist certain relation, can according to the different working stage of system and technological requirement, the pressure of adjust system and flow export, thus realize the constant-pressure variable of system different phase and the function of variable displacement with constant power, thus improve the efficiency of system.
2, hydraulic control system of the present utility model is on the basis that the pressure of Frequency Converter Control metering pump and flow export, passing ratio control module, can the flow of accuracy-control system and Output pressure further.
3, hydraulic control system compact structure of the present utility model, reliable operation, be easy to control and regulate, there is higher cost performance, the fields such as hydraulic breaker, machine tool hydraulic and metallurgical equipment can be widely used in, substantially increase the energy utilization rate of hydraulic breaker, machine tool hydraulic and metallurgical equipment etc.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the hydraulic control system of the utility model embodiment 1.
Fig. 2 is the control principle drawing of the hydraulic control system of the utility model embodiment 1.
Wherein, 1-frequency variator, 2-pressure transducer, 3-flow transducer, 4-AC motor, 5-metering pump, 6-proportional control module, 7-actuator.
Embodiment
Embodiment 1:
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
As shown in Figure 1, the hydraulic control system of the present embodiment comprises frequency variator 1, pressure transducer 2, flow transducer 3, AC motor 4, metering pump 5, proportional control module 6 and actuator 7, described pressure transducer 2 is connected with actuator 7 respectively with flow transducer 3, described frequency variator 1 is connected with pressure transducer 2, flow transducer 3 and AC motor 4 respectively, and described AC motor 4, metering pump 5, proportional control module 6 are connected successively with actuator 7; Wherein:
Described frequency variator 1, for the signal fed back according to pressure transducer 2 and flow transducer 3, realize the closed loop control of AC motor 4 rotating speed, namely inner PID (Proportion-ratio, Integration-integration, Differentiation-differential) parameter is adjusted, accurately to control the rotating speed of AC motor 4, thus realize the function of metering pump 5 constant-pressure variable and variable displacement with constant power.
Described AC motor 4, for driving metering pump 5, the rotating speed according to frequency variator 1 controls, thus controls pressure and the flow output of metering pump 5.
Described pressure transducer 2 is the pressure transducer of analog output, for detection system pressure, and feeds back to frequency variator 1.
Described flow transducer 3 is the flow transducer of analog output, for detection system flow, and feeds back to frequency variator 1.
Described proportional control module 6 comprises Proportional valve, selector valve and pressure valve and auxiliary hydraulic pressure element, for flow and the Output pressure of further accuracy-control system; Wherein, described Proportional valve is for controlling the speed of actuator 7, described selector valve can make actuator 7 fast return, described pressure valve is for adjusting the ouput force of actuator 7, therefore can according to different working condition requirement, by regulating Proportional valve aperture and pressure valve pressure, and by the effect of selector valve and auxiliary hydraulic pressure element, the flow of further accuracy-control system and Output pressure.
Described actuator 7 is the load of system, and its type determines according to actual operation requirements.
In the energy saving and environment friendly hydraulic control system of the present embodiment, there is certain relation in the rotating speed of AC motor 4 and the pressure of system and flow, the parameter of adjustment pressure and flow, the pressure of the different phase of feasible system and flow control; As shown in Figure 2, the control principle of the energy saving and environment friendly hydraulic control system of the present embodiment is as follows:
Three parameter attribute amount A of the pressure of S1, setting speed, flow and deviation
1, K
1and θ
1;
S2, by the pressure of setting and the parameter attribute amount A of flow
1and K
1, respectively with the pressure of actual output speed and the parameter attribute amount A of flow
2and K
2carry out PID control, simultaneously by the parameter attribute amount θ of the deviation of setting
1with the parameter attribute amount θ of the deviation of actual output speed
2carry out linear fit, export three parameter A of pressure, flow and the deviation being used for calibration setup rotating speed
0, K
0and θ
0;
Setting speed signal after S3, utilization correct directly controls the rotating speed of AC motor 4, and the pressure versus flow of control system exports then, makes to export with the pressure versus flow expected to keep synchronous, to reach the object of energy-conserving and environment-protective.
In sum, hydraulic control system of the present utility model can according to the different working stage of system and technological requirement, the pressure of adjust system and flow export, thus realize the constant-pressure variable of system different phase and the function of variable displacement with constant power, thus improve the efficiency of system, and compact structure, reliable operation, be easy to control and regulate, there is higher cost performance, the fields such as hydraulic breaker, machine tool hydraulic and metallurgical equipment can be widely used in, substantially increase the energy utilization rate of hydraulic breaker, machine tool hydraulic and metallurgical equipment etc.
The above; be only the utility model patent preferred embodiment; but the protection domain of the utility model patent is not limited thereto; anyly be familiar with those skilled in the art in the scope disclosed in the utility model patent; be equal to according to the technological scheme of the utility model patent and model utility design thereof and replaced or change, all belonged to the protection domain of the utility model patent.
Claims (6)
1. an energy saving and environment friendly hydraulic control system, is characterized in that: comprise frequency variator, pressure transducer, flow transducer, AC motor, metering pump and actuator, and described pressure transducer is connected with actuator respectively with flow transducer; Described frequency variator respectively pressure transducer, flow transducer is connected with AC motor, for the signal according to pressure transducer and flow transducer feedback, realizes the closed loop control of AC motor rotating speed; Described AC motor is connected with metering pump, and for driving metering pump, the rotating speed according to frequency variator controls, thus controls pressure and the flow output of metering pump; Described metering pump is connected with actuator.
2. the energy saving and environment friendly hydraulic control system of one according to claim 1, it is characterized in that: also comprise proportional control module, described proportional control model calling between metering pump and actuator, for flow and the Output pressure of further accuracy-control system.
3. the energy saving and environment friendly hydraulic control system of one according to claim 2, is characterized in that: described proportional control module comprises Proportional valve, selector valve and pressure valve and auxiliary hydraulic pressure element.
4. the energy saving and environment friendly hydraulic control system of one according to claim 1, is characterized in that: described actuator is the load of system.
5. the energy saving and environment friendly hydraulic control system of one according to claim 1, is characterized in that: described pressure transducer is the pressure transducer of analog output, for detection system pressure, and feeds back to frequency variator.
6. the energy saving and environment friendly hydraulic control system of one according to claim 1, is characterized in that: described flow transducer is the flow transducer of analog output, for detection system flow, and feeds back to frequency variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722257.8U CN205001294U (en) | 2015-09-16 | 2015-09-16 | Energy -concerving and environment -protective type hydraulic control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722257.8U CN205001294U (en) | 2015-09-16 | 2015-09-16 | Energy -concerving and environment -protective type hydraulic control system |
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| Publication Number | Publication Date |
|---|---|
| CN205001294U true CN205001294U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722257.8U Expired - Fee Related CN205001294U (en) | 2015-09-16 | 2015-09-16 | Energy -concerving and environment -protective type hydraulic control system |
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| CN (1) | CN205001294U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286438A (en) * | 2016-09-20 | 2017-01-04 | 山西汾西矿业（集团）有限责任公司 | Fully-mechanized mining working emulsion pump constant-pressure liquid supply system and control method thereof |
| CN106424717A (en) * | 2016-09-06 | 2017-02-22 | 桂林电子科技大学 | Rare-earth powder high-pressure forming system |
| CN111590744A (en) * | 2020-05-29 | 2020-08-28 | 潍坊工商职业学院 | Intelligent control technical method for bulk solid waste material recycling process |
-
2015
- 2015-09-16 CN CN201520722257.8U patent/CN205001294U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424717A (en) * | 2016-09-06 | 2017-02-22 | 桂林电子科技大学 | Rare-earth powder high-pressure forming system |
| CN106286438A (en) * | 2016-09-20 | 2017-01-04 | 山西汾西矿业（集团）有限责任公司 | Fully-mechanized mining working emulsion pump constant-pressure liquid supply system and control method thereof |
| CN111590744A (en) * | 2020-05-29 | 2020-08-28 | 潍坊工商职业学院 | Intelligent control technical method for bulk solid waste material recycling process |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |