CN106499859A - A kind of electromagnetic hydraulic valve solenoid current measurement apparatus - Google Patents
A kind of electromagnetic hydraulic valve solenoid current measurement apparatus Download PDFInfo
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- CN106499859A CN106499859A CN201611062048.0A CN201611062048A CN106499859A CN 106499859 A CN106499859 A CN 106499859A CN 201611062048 A CN201611062048 A CN 201611062048A CN 106499859 A CN106499859 A CN 106499859A
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- current
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- solenoid
- measuring unit
- control device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention proposes a kind of electromagnetic hydraulic valve solenoid current measurement apparatus, including for measuring the first coil current measuring unit of solenoid current, the first coil current measuring unit is connected with first switch element, the first switch element is used for receiving the first current controling signal from current control device and realizes the connection of first switch, so as to control switching on and off for first switch element and power supply；Also include for measuring the second coil current measuring unit of solenoid current, the second coil current measuring unit is connected with second switch element, the second switch element is used for the connection for receiving the second current controling signal realization electricity second switch from current control device, so as to control switching on and off for second switch element and power supply, the present invention can measure the electric current of hydraulic valve solenoid in real time, ensure its normal work, will not cause to damage beyond threshold values because of electric current.
Description
Technical field
The invention belongs to technical field of engineering machinery, more particularly to a kind of electromagnetic hydraulic valve solenoid current measurement.
Background technology
At present, slide-valve gear is that guiding valve is by valve body, valve element and valve using a kind of most version in all kinds of hydraulic valves
Three, chamber critical piece is constituted, and by changing position of the valve element in valve body valve pocket, guiding valve can realize the change of fluid flow direction
And break-make.And in the electromagnetic hydraulic valve course of work, need the traveling that solenoid is controlled using electric current, the size meeting of electric current
Have influence on the operation of hydraulic valve, and the damage of hydraulic valve when current is excessive, can be caused, and electric current too small when, liquid can be caused
The work of pressure valve is not in place.
Therefore, need now a kind of electromagnetic hydraulic valve solenoid current measurement badly, the even running of hydraulic valve can be protected,
Avoid the hydraulic valve for causing from damaging, extend its service life.
Content of the invention
The present invention proposes a kind of electromagnetic hydraulic valve solenoid current measurement, solves electromagnetic hydraulic valve work in prior art
Make that electric current is unstable, be easily caused the problem that damaging occurs in hydraulic valve.
The technical scheme is that and be achieved in that：Electromagnetic hydraulic valve solenoid current measurement apparatus, including for
The first coil current measuring unit of measurement solenoid current, the first coil current measuring unit are connected with first switch
Element, the first switch element are used for reception and realize first switch from the first current controling signal of current control device
Connect, so as to control switching on and off for first switch element and power supply；Also include for measuring solenoid current
Second coil current measuring unit, the second coil current measuring unit are connected with second switch element, the second switch
Element is used for receiving the connection that the second current controling signal from current control device realizes electric second switch, so as to control the
Two switch elements are switched on and off with power supply.
Preferred embodiment the current control device is connected with the first current feedback unit as a kind of, and described the
One current feedback unit connects the first coil current measuring unit and current control device；The current control device connection
There are the second current feedback unit, second current feedback unit to connect the second coil current measuring unit and current control
Device.
As one kind preferred embodiment, the first coil current measuring unit also includes the first clamp diode,
First clamp diode connects the current control device, the first current feedback unit.
As one kind preferred embodiment, the second coil current measuring unit includes the second clamp diode, institute
State the second clamp diode and connect the current control device, the second current feedback unit.
As one kind preferred embodiment, the current control device is used for the first coil current measuring unit
First current value of the solenoid of measurement is corrected to the first preset value, the electricity that the second coil current measuring unit is measured
Second current value of magnetic coil is corrected to the second preset value.
As one kind preferred embodiment, the current control device includes a multiplexer, for receiving first
Coil current measuring unit and the current analog signal of the second coil current measuring unit；The multiplexer is connected with modulus
Transducer is used for for the current analog signal of reception being converted into digital signal；Current setting unit, presets for setting first
Value and the second preset value；Controller, according to the converted numeral of the first preset value, the second preset value and corresponding measured value
Signal, determines corrected value；Pulse-modulator, will be supplied to electromagnetic wire for the correction signal generation pulse signal after by correction
Circle.
As a kind of preferred embodiment, the first coil current measuring unit is connected with the first recognition unit and the
Two recognition units, first recognition unit and the second recognition unit connect the current control device.
As one kind preferred embodiment, first recognition unit and the second recognition unit are used for recognizing the electromagnetism
Process location during coil working.
As one kind preferred embodiment, the controller is pi controller.
After employing above-mentioned technical proposal, the invention has the beneficial effects as follows：The present invention is surveyed by using the first wire current
Amount unit and the second coil current measuring unit measure the current value of solenoid, and by setting the first preset value and second
Preset value, when the real-time current of solenoid reaches the first preset value, shows that solenoid reaches the first pole of operating position
Put, when the real-time current of solenoid reaches the second preset value, show that solenoid reaches the second position of operating position, with
The first clamper tubes of Shi Liyong and the second clamper tube further limit the extreme position of solenoid, it is ensured that the electric current of solenoid is not
Cross and exceed preset value, it is to avoid damaging occurs in solenoid, it is ensured that the even running of hydraulic valve.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the block diagram of electromagnetic hydraulic valve solenoid electrical quantity measurement arrangement of the present invention；
Block diagrams of the Fig. 2 for current control device.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, this electromagnetic hydraulic valve solenoid current measurement apparatus, including for measuring solenoid current
First coil current measuring unit, the first coil current measuring unit are connected with first switch element, the first switch
Element is used for receiving the first current controling signal from current control device and realizes the connection of first switch, so as to control first
Switch element is switched on and off with power supply；Also include measuring list for measuring the second coil current of solenoid current
Unit, the second coil current measuring unit are connected with second switch element, and the second switch element is used for receiving from electricity
Second current controling signal of flow control device realizes the connection of electric second switch, so as to control second switch element with power supply electricity
Source switches on and off.
The current control device is connected with the first current feedback unit, the first current feedback unit connection described the
One coil current measuring unit and current control device；The current control device is connected with the second current feedback unit, described
Second current feedback unit connects the second coil current measuring unit and current control device.
The first coil current measuring unit also includes that the first clamp diode, first clamp diode connect institute
State current control device, the first current feedback unit.
The second coil current measuring unit includes the second clamp diode, and the second clamp diode connection is described
Current control device, the second current feedback unit.
The current control device is used for the first electricity of the solenoid for measuring the first coil current measuring unit
Flow valuve is corrected to the first preset value, the second current value correction of the solenoid that the second coil current measuring unit is measured
For the second preset value.
The current control device includes a multiplexer, for receiving first coil current measuring unit and the second line
The current analog signal of loop current measuring unit；The multiplexer is connected with the current-mode that analog-digital converter is used for receiving
Intend signal and be converted into digital signal；Current setting unit, for setting the first preset value and the second preset value；Controller, root
According to the converted digital signal of the first preset value, the second preset value and corresponding measured value, corrected value is determined；Impulse modulation
Device, will be supplied to solenoid for the correction signal generation pulse signal after by correction.
The first coil current measuring unit is connected with the first recognition unit and the second recognition unit, first identification
Unit and the second recognition unit connect the current control device.
First recognition unit and the second recognition unit are used for recognizing the process position in the solenoid course of work
Put.
The controller is pi controller.
The operation principle of the electromagnetic hydraulic valve solenoid flow measurement device is：The present invention is by using the first electric wire electricity
Flow metering unit and the second coil current measuring unit measure the current value of solenoid, and by set the first preset value and
Second preset value, when the real-time current of solenoid reaches the first preset value, shows that solenoid reaches the of operating position
One pole is put, and when the real-time current of solenoid reaches the second preset value, shows that solenoid reaches the second of operating position
Put, while further limiting the extreme position of solenoid using the first clamper tube and the second clamper tube, it is ensured that solenoid
Electric current only exceedes preset value, it is to avoid damaging occurs in solenoid, it is ensured that the even running of hydraulic valve.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements that is made etc. should be included within the scope of the present invention.
Claims (9)
1. a kind of electromagnetic hydraulic valve solenoid current measurement apparatus, it is characterised in that include for measuring solenoid current
First coil current measuring unit, the first coil current measuring unit is connected with first switch element, and described first opens
The first current controling signal that closing element is used for receiving from current control device realizes the connection of first switch, so as to control the
One switch element is switched on and off with power supply；Also include measuring for measuring the second coil current of solenoid current
Unit, the second coil current measuring unit are connected with second switch element, the second switch element be used for receiving from
Second current controling signal of current control device realizes the connection of electric second switch, so as to control second switch element and power supply
Power supply is switched on and off.
2. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 1, it is characterised in that the electric current control
Device processed is connected with the first current feedback unit, and first current feedback unit connects the first coil current measuring unit
And current control device；The current control device is connected with the second current feedback unit, and second current feedback unit connects
Connect the second coil current measuring unit and current control device.
3. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 2, it is characterised in that the First Line
Loop current measuring unit also includes the first clamp diode, first clamp diode connect the current control device, the
One current feedback unit.
4. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 2, it is characterised in that second line
Loop current measuring unit includes the second clamp diode, second clamp diode connect the current control device, second
Current feedback unit.
5. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 4, it is characterised in that the electric current control
First current value of solenoid of the device processed for measuring the first coil current measuring unit is corrected to first and presets
Value, the second current value of the solenoid that the second coil current measuring unit is measured are corrected to the second preset value.
6. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 5, it is characterised in that the electric current control
Device processed includes a multiplexer, for receiving the electricity of first coil current measuring unit and the second coil current measuring unit
Flow field simulation signal；The multiplexer is connected with analog-digital converter to be used for for the current analog signal of reception being converted into numeral
Signal；Current setting unit, for setting the first preset value and the second preset value；Controller, according to the first preset value, second pre-
If the converted digital signal of value and corresponding measured value, determines corrected value；Pulse-modulator, for the school after by correction
Positive signal generates pulse signal and will be supplied to solenoid.
7. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 6, it is characterised in that the First Line
Loop current measuring unit is connected with the first recognition unit and the second recognition unit, first recognition unit and the second recognition unit
Connect the current control device.
8. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 7, it is characterised in that described first knows
Other unit and the second recognition unit are used for recognizing the process location in the solenoid course of work.
9. electromagnetic hydraulic valve solenoid current measurement apparatus according to claim 8, it is characterised in that the controller
For pi controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062048.0A CN106499859A (en) | 2016-11-25 | 2016-11-25 | A kind of electromagnetic hydraulic valve solenoid current measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062048.0A CN106499859A (en) | 2016-11-25 | 2016-11-25 | A kind of electromagnetic hydraulic valve solenoid current measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106499859A true CN106499859A (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611062048.0A Pending CN106499859A (en) | 2016-11-25 | 2016-11-25 | A kind of electromagnetic hydraulic valve solenoid current measurement apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561984A (en) * | 2017-09-05 | 2018-01-09 | 广州日滨科技发展有限公司 | The control system and its control method of a kind of support apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201072427Y (en) * | 2007-09-14 | 2008-06-11 | 清华大学 | Pulse current measuring apparatus based on flexible Rogowski coil |
| JP2014156926A (en) * | 2013-02-18 | 2014-08-28 | Honda Motor Co Ltd | Hydraulic control device |
| CN104126090A (en) * | 2012-03-26 | 2014-10-29 | 爱信艾达株式会社 | Solenoid valve control device and control method |
| CN104428635A (en) * | 2012-06-28 | 2015-03-18 | 恩德斯+豪斯流量技术股份有限公司 | Method for controlling a coil current of a magnetoinductive flowmeter |
| CN105092951A (en) * | 2014-05-22 | 2015-11-25 | 株式会社万都 | Apparatus and method of measuring coil current of hydraulic valve |
-
2016
- 2016-11-25 CN CN201611062048.0A patent/CN106499859A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201072427Y (en) * | 2007-09-14 | 2008-06-11 | 清华大学 | Pulse current measuring apparatus based on flexible Rogowski coil |
| CN104126090A (en) * | 2012-03-26 | 2014-10-29 | 爱信艾达株式会社 | Solenoid valve control device and control method |
| CN104428635A (en) * | 2012-06-28 | 2015-03-18 | 恩德斯+豪斯流量技术股份有限公司 | Method for controlling a coil current of a magnetoinductive flowmeter |
| JP2014156926A (en) * | 2013-02-18 | 2014-08-28 | Honda Motor Co Ltd | Hydraulic control device |
| CN105092951A (en) * | 2014-05-22 | 2015-11-25 | 株式会社万都 | Apparatus and method of measuring coil current of hydraulic valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561984A (en) * | 2017-09-05 | 2018-01-09 | 广州日滨科技发展有限公司 | The control system and its control method of a kind of support apparatus |
| CN107561984B (en) * | 2017-09-05 | 2019-11-01 | 日立楼宇技术（广州）有限公司 | A kind of control system and its control method of support apparatus |
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Application publication date: 20170315 |
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