CN106499859A - A kind of electromagnetic hydraulic valve solenoid current measurement apparatus - Google Patents

A kind of electromagnetic hydraulic valve solenoid current measurement apparatus Download PDF

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Publication number
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
Authority
CN
China
Prior art keywords
current
unit
solenoid
switch
measuring unit
Prior art date
Application number
CN201611062048.0A
Other languages
Chinese (zh)
Inventor
张勇
邓继周
赵岗
Original Assignee
合肥协力液压科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 合肥协力液压科技有限公司 filed Critical 合肥协力液压科技有限公司
Priority to CN201611062048.0A priority Critical patent/CN106499859A/en
Publication of CN106499859A publication Critical patent/CN106499859A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675Electromagnet aspects, e.g. electric supply therefor

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

A kind of electromagnetic hydraulic valve solenoid current measurement apparatus

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.
CN201611062048.0A 2016-11-25 2016-11-25 A kind of electromagnetic hydraulic valve solenoid current measurement apparatus CN106499859A (en)

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

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Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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