CN205956121U - One -way servopump of bender does not have overflow energy -saving control system - Google Patents
One -way servopump of bender does not have overflow energy -saving control system Download PDFInfo
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- CN205956121U CN205956121U CN201620813368.4U CN201620813368U CN205956121U CN 205956121 U CN205956121 U CN 205956121U CN 201620813368 U CN201620813368 U CN 201620813368U CN 205956121 U CN205956121 U CN 205956121U
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Abstract
The utility model relates to an one -way servopump of bender does not have overflow energy -saving control system. Including numerical control system, servo driver, servo motor, the constant delivery pump, the grating chi, a reversing valve, hydraulic cylinder and oil tank, the servo motor drives constant delivery pump provides hydraulic oil for hydraulic cylinder, the oil feed end of constant delivery pump is connected with the oil tank, hydraulic oil is through after the switching -over gets into hydraulic cylinder behind the valve and flow back through the switching -over valve once more to the oil tank in, position and speed and output detection signal that grating chi and numerical control system and hydraulic connection are used for detecting hydraulic cylinder give numerical control system, be connected with proportion overflow valve and safety relief valve between constant delivery pump and the switching -over valve, be connected with servo driver between numerical control system and the servo motor, numerical control system is connected with the switching -over valve. The utility model discloses simple structure, grating chi can follow the machine operating mode in real time and feed back to numerical control system with detection information, thereby numerical control system realizes accurate motor functioning speed through the maximum speed in analog quantity maximum output voltage every stage of servo motor control of each operating mode of settlement to realize no overflow control.
Description
Technical field
This utility model is related to a kind of unidirectional servopump of bender no overflow energy-saving control system.
Background technology
The work process of numerical control bender be divided into fast under, work enter, pressurize, off-load, backhaul, stop six stages, each rank
The pressure that section needs and oily flow are different, for common three phase electric machine, the whole service stage of machine（Including in
Between halted state）Motor is constantly in a constant state running up, and oil pump is also constantly in one and runs up
State, the hydraulic oil that oil pump is got only enters in work, the backhaul stage has done useful work, and remaining stage major part all passes through overflow valve
Do useless overflow, so not only brought the higher temperature rise of fluid, the energy of oil pump motor loss has been up in the process
45%-72%.
Although the unidirectional pump control system of existing traditional servo compares common oil pump motor system certain energy-conservation
The effect of reducing energy consumption, but its added value brought not is apparent.
Utility model content
For drawbacks described above, the purpose of this utility model is to provide a kind of structure simple, can be in real time with random device work
Condition controls a kind of more accurate, the unidirectional servopump of bender no overflow energy-saving control system of energy saving.
Be employed technical scheme comprise that by this this utility model：
Including digital control system, servo-driver, servomotor, dosing pump, grating scale, reversal valve, hydraulic jack and oil
Case, described servomotor drives dosing pump to provide hydraulic oil to hydraulic jack, and the oil inlet end of dosing pump is connected with fuel tank, hydraulic oil
After entering hydraulic jack after reversal valve and be back in fuel tank again by reversal valve, described grating scale and digital control system and
Hydraulic jack connects in order to detect the position of hydraulic jack and speed and to export detection signal to digital control system, described dosing pump with
It is connected with proportional pressure control valve and safety overflow valve between reversal valve, be connected with servo between described digital control system and servomotor and drive
Dynamic device, digital control system outputs a control signal to servo according to the hydraulic jack actual operating data of the operational factor setting and feedback
Driver, servo-driver changes servomotor rotating speed according to control signal, and described digital control system is connected with reversal valve.
As the improvement further of technique scheme, described reversal valve is proportional reversing valve, and described digital control system controls
The openings of sizes of proportional reversing valve, the actual aperture of proportional reversing valve feeds back to digital control system and forms half-closed loop control.
As the improvement further of technique scheme, set between described proportional pressure control valve and safety overflow valve and dosing pump
There is choke valve.
As the improvement further of technique scheme, the oil outlet end of dosing pump is provided with high-pressure filter.
The utility model has the advantages that：
This utility model structure is simple, and grating scale can feed back to numerical control system with random device operating mode and by detection information in real time
System, digital control system is passed through to set the analog quantity maximum output voltage of each operating mode thus controlling the highest in each stage of servomotor
Rotating speed, realizes accurately motor operation speed, thus realize no overflow controlling.
Brief description
Fig. 1 is structural representation of the present utility model.
In figure 1 is digital control system, 2 is servo-driver, 3 is servomotor, 4 is dosing pump, 5 is grating scale, 6 is hydraulic pressure
Oil cylinder, 7 be fuel tank, 8 be proportional pressure control valve, 9 be safety overflow valve, 10 be proportional reversing valve, 11 be choke valve, 12 be high filter pressing
Oily device.
Specific embodiment
A kind of unidirectional servopump no overflow energy-saving control system of bender, including digital control system 1, servo-driver 2, servo
Motor 3, dosing pump 4, grating scale 5, reversal valve, hydraulic jack 6 and fuel tank 7, described servomotor 3 drives dosing pump 4 to liquid
Compressing cylinder 6 provides hydraulic oil, and the oil inlet end of dosing pump 4 is connected with fuel tank 7, and hydraulic oil enters hydraulic jack 6 after reversal valve
It is back in fuel tank 7 afterwards and again by reversal valve, described grating scale 5 is connected to detect with digital control system 1 and hydraulic jack 6
The position of hydraulic jack 6 and speed simultaneously export detection signal to digital control system 1, are connected between described dosing pump 4 and reversal valve
Proportional pressure control valve 8 and safety overflow valve 9, are connected with servo-driver 2, numerical control system between described digital control system 1 and servomotor 3
System 1 outputs a control signal to servo-driver 2 according to hydraulic jack 6 actual operating data of the operational factor setting and feedback,
Servo-driver 2 changes servomotor 3 rotating speed according to control signal, and described digital control system 1 is connected with reversal valve.
As the improvement further of technique scheme, described reversal valve is proportional reversing valve 10, and described digital control system 1 is controlled
The openings of sizes of proportional reversing valve 10 processed, the actual aperture of proportional reversing valve 10 feeds back to digital control system 1 and forms half-closed loop control.
As the improvement further of technique scheme, described proportional pressure control valve 8 and safety overflow valve 9 and dosing pump 4 it
Between be provided with choke valve 11.
As the improvement further of technique scheme, the oil outlet end of dosing pump 4 is provided with high-pressure filter 12.
Servomotor 3 drives dosing pump 4 to provide hydraulic oil to hydraulic jack 6, when proportional reversing valve 10 obtains electric, hydraulic oil
A chamber is entered by P chamber and is delivered to hydraulic jack 6 epicoele, promote hydraulic jack 6 descending, the hydraulic oil of hydraulic jack 6 cavity of resorption leads to
Fuel tank 7 is flowed back in the T chamber crossing proportional reversing valve 10.
Digital control system 1 provide two-way analog quantity mouth to servo-driver 2, two-way analog quantity mouth be respectively speed controlling mouth and
Torque limit mouth, servo-driver 2 is according to the rotating speed receiving and pressure limit signal output to servomotor 3.
Digital control system 1 controls the opening of proportional reversing valve 10 thus controlling the speed of service of hydraulic jack 6, and grating scale 5 is examined
Survey the speed of service of hydraulic jack 6 and feed back to digital control system 1, the actual aperture of proportional reversing valve 10 feeds back to digital control system 1,
Digital control system 1, according to the control output of the feedback signal real-time adjustment proportional reversing valve 10 of two-way, adjusts to servo-drive simultaneously
The output analog signalses of device 2.
Claims (4)
1. a kind of unidirectional servopump of bender no overflow energy-saving control system is it is characterised in that include digital control system, servo-drive
Device, servomotor, dosing pump, grating scale, reversal valve, hydraulic jack and fuel tank, described servomotor drives dosing pump to liquid
Compressing cylinder provides hydraulic oil, and the oil inlet end of dosing pump is connected with fuel tank, and hydraulic oil enters after hydraulic jack simultaneously after reversal valve
It is back in fuel tank again by reversal valve, described grating scale is connected to detect hydraulic jack with digital control system and hydraulic jack
Position and speed export detection signal to digital control system, be connected between described dosing pump and reversal valve proportional pressure control valve and
Safety overflow valve, is connected with servo-driver between described digital control system and servomotor, digital control system is according to the operation setting
The hydraulic jack actual operating data of parameter and feedback outputs a control signal to servo-driver, and servo-driver is according to control letter
Number change servomotor rotating speed, described digital control system is connected with reversal valve.
2. a kind of unidirectional servopump of bender according to claim 1 no overflow energy-saving control system is it is characterised in that institute
Stating reversal valve is proportional reversing valve, and described digital control system controls the openings of sizes of proportional reversing valve, and the actual of proportional reversing valve opens
Mouth feeds back to digital control system and forms half-closed loop control.
3. a kind of unidirectional servopump of bender according to claim 1 no overflow energy-saving control system is it is characterised in that institute
State and between proportional pressure control valve and safety overflow valve and dosing pump, be provided with choke valve.
4. a kind of unidirectional servopump of bender according to claim 1 no overflow energy-saving control system is it is characterised in that fixed
The oil outlet end of amount pump is provided with high-pressure filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620813368.4U CN205956121U (en) | 2016-07-30 | 2016-07-30 | One -way servopump of bender does not have overflow energy -saving control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620813368.4U CN205956121U (en) | 2016-07-30 | 2016-07-30 | One -way servopump of bender does not have overflow energy -saving control system |
Publications (1)
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| CN205956121U true CN205956121U (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620813368.4U Active CN205956121U (en) | 2016-07-30 | 2016-07-30 | One -way servopump of bender does not have overflow energy -saving control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826846A (en) * | 2019-02-25 | 2019-05-31 | 淮安信息职业技术学院 | A kind of electro-hydraulic servo speed-regulating system for numerical control bender |
| CN110779813A (en) * | 2019-10-31 | 2020-02-11 | 桥弘数控科技（上海）有限公司 | Dynamic shear testing machine hydraulic system and large dynamic shear testing machine with same |
| CN112524106A (en) * | 2019-09-18 | 2021-03-19 | 上海禾之木工业设备有限公司 | Servo hydraulic pump system for die casting machine |
| CN112525151A (en) * | 2020-12-25 | 2021-03-19 | 广东电网有限责任公司佛山供电局 | Full-automatic high-precision hierarchical settlement meter and control method thereof |
| CN112711224A (en) * | 2021-01-29 | 2021-04-27 | 江苏金方圆数控机床有限公司 | Bending machine control system |
| CN114198348A (en) * | 2021-12-16 | 2022-03-18 | 天水锻压机床(集团)有限公司 | Hydraulic system of super-tonnage servo pump-controlled bending machine and control method thereof |
-
2016
- 2016-07-30 CN CN201620813368.4U patent/CN205956121U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826846A (en) * | 2019-02-25 | 2019-05-31 | 淮安信息职业技术学院 | A kind of electro-hydraulic servo speed-regulating system for numerical control bender |
| CN112524106A (en) * | 2019-09-18 | 2021-03-19 | 上海禾之木工业设备有限公司 | Servo hydraulic pump system for die casting machine |
| CN110779813A (en) * | 2019-10-31 | 2020-02-11 | 桥弘数控科技（上海）有限公司 | Dynamic shear testing machine hydraulic system and large dynamic shear testing machine with same |
| CN112525151A (en) * | 2020-12-25 | 2021-03-19 | 广东电网有限责任公司佛山供电局 | Full-automatic high-precision hierarchical settlement meter and control method thereof |
| CN112525151B (en) * | 2020-12-25 | 2022-05-20 | 广东电网有限责任公司佛山供电局 | Full-automatic high-precision layering settlement meter and control method thereof |
| CN112711224A (en) * | 2021-01-29 | 2021-04-27 | 江苏金方圆数控机床有限公司 | Bending machine control system |
| CN114198348A (en) * | 2021-12-16 | 2022-03-18 | 天水锻压机床(集团)有限公司 | Hydraulic system of super-tonnage servo pump-controlled bending machine and control method thereof |
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| GR01 | Patent grant |