CN102879678B - Tester for electromagnetic valve - Google Patents
Tester for electromagnetic valve Download PDFInfo
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- CN102879678B CN102879678B CN201210359547.1A CN201210359547A CN102879678B CN 102879678 B CN102879678 B CN 102879678B CN 201210359547 A CN201210359547 A CN 201210359547A CN 102879678 B CN102879678 B CN 102879678B
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Abstract
The invention provides a tester for an electromagnetic valve. The tester comprises a power supply, a power switch and a voltage booster circuit, wherein the power supply for supplying first voltage is used for performing voltage booster conversion on the first voltage through the power switch to output working voltage required by the electromagnetic valve to be tested and is connected with the voltage booster circuit for testing the electromagnetic valve to be tested; and the voltage booster circuit is also connected with the electromagnetic valve to be tested. By the tester for the electromagnetic valve, the voltage booster circuit performs voltage booster conversion on the voltage output by the power supply, so that the converted voltage is consistent with the working voltage required by the electromagnetic valve to be tested; the electromagnetic valve to be tested is connected with the tester for the electromagnetic valve to control the power switch to be turned on or turned off, so that the working voltage is output to the electromagnetic valve to be tested, and the electromagnetic valve to be tested can be tested; a phenomenon that the electromagnetic valve is tested only by a programmable logic controller (PLC) is avoided; and therefore, the time for testing the electromagnetic valve can be shortened, and the efficiency for testing the electromagnetic valve is improved.
Description
Technical field
The present invention relates to technical field of measurement and test, particularly relate to a kind of tester for electromagnetic valve.
Background technology
In the debugging of engineering machinery, controlled the action at mechanical position by the action of solenoid valve, the correctness of solenoid valve action and reliability, concerning most important whole debug process, therefore, just seem of crucial importance to the test of solenoid valve action.
At present, main in the process of the debugging of engineering machinery, the incentive condition of solenoid valve is programmed in programmable logic controller (PLC) (the Programmable Logic Controller for debugging engineering machinery, referred to as PLC) in program, PLC program searches incentive condition in operational process, control PLC program exports the output signal being used for Controlling solenoid valve action, and this output signal can be analog signals or on-off model, thus completes the test to solenoid valve.
Above-mentioned solenoid valve method of testing requires that programming personnel has the principle of engineering machinery and logic and understands more all sidedly, and need PLC program input and debug errorless after could test solenoid valve, there is test length consuming time in the method, the problem that testing efficiency is low.
Summary of the invention
The invention provides a kind of tester for electromagnetic valve, in order to shorten the solenoid valve test duration, improve solenoid valve testing efficiency.
For achieving the above object, the invention provides a kind of tester for electromagnetic valve, comprising: power supply, power switch and booster circuit;
For providing the described power supply of the first voltage by described power switch and for carrying out boost conversion to described first voltage, to export the operating voltage needed for solenoid valve to be measured, connect with the described booster circuit tested described solenoid valve to be measured;
Described booster circuit is also connected with described solenoid valve to be measured.
In one Alternate embodiments of tester for electromagnetic valve described above, described tester for electromagnetic valve also comprises: connecting line; Described connecting line comprises first input end, the second input terminal and lead-out terminal; Described booster circuit comprises voltage output end and earth terminal;
Described first input end is connected with described voltage output end, and described second input terminal is connected with described earth terminal; Described lead-out terminal is connected with described solenoid valve to be measured.
In one Alternate embodiments of tester for electromagnetic valve described above, described solenoid valve to be measured is non-reversing switch amount solenoid valve.
In one Alternate embodiments of tester for electromagnetic valve described above, described tester for electromagnetic valve also comprises: for the reversing switch commutated to described operating voltage; Described reversing switch is connected between described voltage output end and described first input end.
In one Alternate embodiments of tester for electromagnetic valve described above, described reversing switch comprises: forward end points, room end points, oppositely end points and switch shift lever;
Described switch shift lever is connected with described voltage output end, described forward end points and described reverse end points respectively with described first input end sub-connection, described room end points is unsettled.
In one Alternate embodiments of tester for electromagnetic valve described above, described tester for electromagnetic valve also comprises: for carrying out electric current conversion to described operating voltage, to export the current converter circuit of the working current of simulation to described solenoid valve to be tested; Described current converter circuit is connected between described voltage output end and described first input end.
In one Alternate embodiments of tester for electromagnetic valve described above, described current converter circuit comprises: input rectification circuit, low-pass filter circuit, reference voltage produce and adder circuit, voltage/current conversion circuit and current adjusting knob;
For carrying out rectification process to described operating voltage, be connected with described voltage output end with the described input rectification circuit exporting DC voltage; Described low-pass filter circuit for carrying out filtering process to described DC voltage is connected with described input rectification circuit; For according to the filtered DC voltage of described low-pass filter, the described reference voltage generating continuous print voltage signal produces and is connected with described low-pass filtering with adder circuit; For converting described continuous print voltage signal to current signal, to produce with described reference voltage with the described voltage/current conversion circuit exporting the working current of described simulation and being connected with adder circuit;
For the resistance by regulating described input regulating resistance, be connected with the input regulating resistance in described input rectification circuit to realize the continuously adjustable described current adjusting knob of the working current of described simulation.
In one Alternate embodiments of tester for electromagnetic valve described above, described tester for electromagnetic valve also comprises: for the resistance by regulating described Drazin inverse resistance, to regulate the voltage-regulation knob of described operating voltage; Described voltage-regulation knob is connected with the Drazin inverse resistance in described booster circuit.
In one Alternate embodiments of tester for electromagnetic valve described above, described tester for electromagnetic valve also comprises: the power light being used to indicate the duty of described power supply, and described power light is connected with described power supply.
In one Alternate embodiments of tester for electromagnetic valve described above, described tester for electromagnetic valve also comprises: the alternator indicator being used to indicate the size of the working current of described simulation, and described alternator indicator is connected with described current converter circuit.
In one Alternate embodiments of tester for electromagnetic valve described above, described tester for electromagnetic valve also comprises: shell; Described power supply, described booster circuit and described current output circuit are arranged on the inside of described shell.
Tester for electromagnetic valve provided by the invention, the voltage exported by power supply by booster circuit carries out boost conversion, make the voltage after changing consistent with the operating voltage needed for solenoid valve to be measured, solenoid valve to be measured is connected with this tester for electromagnetic valve, control the closed of power switch or disconnect, to realize the test to solenoid valve to be measured to solenoid valve output services voltage to be measured, PLC is no longer solely relied on to test solenoid valve, thus the problem relying on PLC program test solenoid valve can be solved, shorten the solenoid valve test duration, improve solenoid valve testing efficiency.
Accompanying drawing explanation
The structural representation of a kind of tester for electromagnetic valve that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the another kind of tester for electromagnetic valve that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the another kind of tester for electromagnetic valve that Fig. 3 provides for the embodiment of the present invention;
A kind of structural representation of the current converter circuit in the tester for electromagnetic valve that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the another kind of tester for electromagnetic valve that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is the schematic diagram of the booster circuit of tester for electromagnetic valve provided by the invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The structural representation of a kind of tester for electromagnetic valve that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, this tester for electromagnetic valve comprises: for providing the power supply 11 of the first voltage, power switch 12 and for carrying out boost conversion to this first voltage, to export the operating voltage needed for solenoid valve to be measured, with the booster circuit 13 tested solenoid valve to be measured.Power supply 11 is connected with booster circuit 13 by power switch 12, and this power supply 11 is for providing the first voltage.This booster circuit 13 is also connected with solenoid valve to be measured, for carrying out boost conversion to this first voltage, to export the operating voltage needed for described solenoid valve to be measured, to test described solenoid valve to be measured.After being connected with this tester for electromagnetic valve by solenoid valve to be measured, by closed electrical source switch 12, solenoid valve to be measured can adhesive under the effect of operating voltage, and by disconnecting power switch 12, solenoid valve to be measured can disconnect because of the disappearance of operating voltage.
Illustrate at this, in the present embodiment, booster circuit 13 and solenoid valve to be measured can be directly be connected, and also can be connected by other device or connecting line etc.
Optionally, when booster circuit 13 is directly connected with solenoid valve to be measured, or when booster circuit 13 is connected with solenoid valve to be measured by means of only connecting line, booster circuit 13 exports constant operating voltage, by controlling the closed of power switch 12 or disconnecting, the operating voltage of output switch amount, so solenoid valve to be measured is the switching value solenoid valve of non-commutation.
The tester for electromagnetic valve that the present embodiment provides, the voltage exported by power supply by booster circuit carries out boost conversion, make the voltage after changing consistent with the operating voltage needed for solenoid valve to be measured, solenoid valve to be measured is connected with this tester, control the closed of power switch or disconnect, to realize the test to solenoid valve to be measured to solenoid valve output services voltage to be measured, PLC is no longer solely relied on to test solenoid valve, thus the problem relying on PLC program test solenoid valve can be solved, shorten the solenoid valve test duration, improve solenoid valve testing efficiency.
Optionally, in the present embodiment, this tester for electromagnetic valve can also comprise connecting line, and the one of this connecting line realizes structure and can comprise: first input end, the second input terminal and lead-out terminal.The output terminal of booster circuit 13 can comprise voltage output end and earth terminal.First input end of this connecting line is connected with the voltage output end of booster circuit 13, and the second input terminal of this connecting line is connected with the earth terminal of booster circuit; The lead-out terminal of this connecting line is connected with solenoid valve to be measured, so just achieves the connection between booster circuit 13 and solenoid valve to be measured.Preferably, in the present embodiment, the lead-out terminal of this connecting line adopts the electromagnetic valve plug mated with solenoid valve socket to be measured, electromagnetic valve plug is inserted in the socket of solenoid valve to be measured, form a test loop, by controlling the closed of power switch 12 and disconnecting, the operating voltage of output switch amount, thus can test non-reversing switch amount solenoid valve.
Fig. 2 is the structural representation of another kind of tester for electromagnetic valve provided by the invention.As shown in Figure 2, this tester for electromagnetic valve comprises: power supply 21, power switch 22, booster circuit 23, connecting line 24 and the reversing switch 25 commutated for the operating voltage after changing booster circuit 23.Power supply 21 is connected with booster circuit 23 by power switch 22, and this power supply 21 is for providing the first voltage.This booster circuit 23 for carrying out boost conversion to this first voltage, to export the operating voltage needed for solenoid valve to be measured.This reversing switch 25 is connected between the voltage output end of booster circuit 23 and first input end of connecting line 24.This reversing switch 25 is for commutating to the operating voltage after booster circuit conversion.The operating voltage that booster circuit 23 can be made to export by this reversing switch 25 is the operating voltage of both direction.Reversing switch 25 is connected with solenoid valve to be measured by connecting line 24.By controlling the closed and disconnected of power switch 22 and changing the direction of reversing switch 25, the switching value operating voltage of both direction can be exported, thus this solenoid valve to be measured is tested.In the present embodiment, this solenoid valve to be measured is reversing switch amount solenoid valve.
Particularly, the one of this reversing switch 25 realizes structure and comprises: forward end points 251, room end points 252, oppositely end points 253 and switch shift lever 254.Switch shift lever 254 is connected with the voltage output end of booster circuit 23, forward end points 251 and reverse end points 253 respectively with the first input end sub-connection of connecting line 24, now the second input terminal of connecting line 24 is connected with the earth terminal of booster circuit 23, and lead-out terminal is connected with solenoid valve to be measured.Room end points 252 is unsettled.Particularly, after reversing switch being connected with solenoid valve to be measured by connecting line 24, closed electrical source switch 22, when switch shift lever 254 be allocated to forward end points 251 that is A position time, this forward end points 251 is connected with voltage output end, by connecting line 24 to solenoid valve input service voltage to be measured, solenoid valve to be measured one to can input operating voltage under adhesive.When power switch 22 is closed, switch shift lever 254 is allocated to from A position room end points 252 that is 0 time, because this room end points 252 is vacant state, namely room end points 252 and solenoid valve to be measured is separated, not to this solenoid valve input service voltage to be measured, this solenoid valve to be measured can disconnect because of the disappearance of this forward operating voltage.When power switch 22 is closed, again by switch shift lever 254 from 0 be allocated to reverse end points 253 that is B position time, this reverse end points 253 is connected with this voltage output end, by connecting line 24 to solenoid valve input service voltage to be measured, another of solenoid valve to be measured is to meeting adhesive under the operating voltage of input, when power switch 22 is closed, then switch shift lever 254 is allocated to 0 from B, solenoid valve to be measured can because the disappearance of operating voltage disconnects again.If the action of solenoid valve to be measured and above-describedly to come to the same thing, then illustrate that the action of solenoid valve to be measured is correct, otherwise, illustrate that the action of solenoid valve to be measured is incorrect, can check it.
The tester for electromagnetic valve that the present embodiment provides, by setting up a reversing switch between connecting line and booster circuit, operating voltage after being changed by booster circuit by this reversing switch is commutated, and can realize the test to commutation switching value electromagnetic valve work state by this reversing switch.After reversing switch amount solenoid valve and this battery valve tester complete and be connected, by stirring the position of this switch shift lever, can realize, to the test of commutation switching value electromagnetic valve work state, shortening the test duration of reversing switch amount solenoid valve, improve testing efficiency.
Alternatively, in the tester for electromagnetic valve of above-described embodiment, in booster circuit, can arrange two output terminals with parallel way, one of them output terminal is connected with non-reversing switch amount solenoid valve by connecting line, thus can complete the test of the switching value solenoid valve of non-commutation.And with reference to the mode of above-described embodiment between another output terminal and connecting line, reversing switch is set.Reversing switch is connected with reversing switch amount solenoid valve by connecting line, thus can complete the test of reversing switch amount solenoid valve on this battery valve tester.By in the tester for electromagnetic valve of above-described embodiment, two above-mentioned output terminals are set, can be implemented in same tester for electromagnetic valve and both can test non-reversing switch amount solenoid valve, also reversing switch amount solenoid valve can be tested, and can realize testing non-reversing switch amount solenoid valve and reversing switch amount solenoid valve simultaneously, further, shorten the time that solenoid valve to be measured is tested on the whole, improve testing efficiency.
The structural representation of the another kind of tester for electromagnetic valve that Fig. 3 provides for the embodiment of the present invention.As shown in Figure 3, this tester for electromagnetic valve comprises: power supply 31, power switch 32, booster circuit 33, connecting line 34 and for carrying out electric current conversion to operating voltage, to export the current converter circuit 35 of the working current of simulation to solenoid valve to be tested.Power supply 31 and power switch 32 annexation and effect can see above-described embodiments.Current converter circuit 35 is connected between the voltage output end of booster circuit 33 and first input end of connecting line 34, and booster circuit 33 is connected with this current converter circuit 35, provides operating voltage to this current converter circuit.The operating voltage provided is carried out electric current conversion by this current converter circuit 35, to export the working current of simulation to solenoid valve to be measured.Current converter circuit 35 pairs of operating voltage carry out electric current conversion, and the working current of this simulation is inputted solenoid valve to be measured by connecting line 34, to realize the test to solenoid valve to be measured.In the present embodiment, solenoid valve to be measured is analog quantity solenoid valve.
Wherein, a kind of structural representation of the current converter circuit in the tester for electromagnetic valve that provides for the embodiment of the present invention of Fig. 4.As shown in Figure 4, this current converter circuit comprises: for carrying out rectification process to the operating voltage of input, to export the input rectification circuit of DC voltage, for carrying out the low-pass filter circuit of filtering process to DC voltage, for according to the filtered DC voltage of low-pass filter, the reference voltage generating continuous print voltage signal produces and adder circuit, for carrying out electric current conversion to continuous print voltage signal, to export the voltage/current conversion circuit of the working current of simulation and the resistance for being inputted regulating resistance by adjustment, to realize the continuously adjustable current adjusting knob of the working current of simulating.Input rectification circuit is connected with voltage output end, for carrying out rectification process, to export DC voltage to the operating voltage of this circuit of input; Low-pass filter circuit is connected with this input rectification circuit, for carrying out filtering process to this DC voltage, as can by filterings such as the harmonic wave in this DC voltage, clutters.Reference voltage produces and is connected with this low-pass filtering with adder circuit, for according to the filtered DC voltage of low-pass filter, generates continuous print voltage signal.Voltage/current conversion circuit produces with this reference voltage and is connected with adder circuit, for carrying out electric current conversion to this continuous print voltage signal, to export the working current of simulation.Further, input regulating resistance TR3 in this input rectification circuit and be connected with current adjusting knob, for the resistance by regulating this TR3, to realize the continuously adjustabe of the working current of simulating.
The magnitude range of the present embodiment to the working current of the simulation that this current converter circuit exports does not limit, can according to the magnitude range of practical application request by selecting different input regulating resistance TR3 to change the electric current that it exports.Such as, the scope of the working current of the simulation of the current converter circuit output of the present embodiment can be 4 ~ 20mA, when power switch 32 is closed, current adjusting knob is threaded to maximum operating currenbt 20mA by the position of minimum working current 4mA, and this current converter circuit can export 4 ~ 20mA working current.Further as example, the principle of work of solenoid valve under the control of tester for electromagnetic valve is described.Concrete, while the current adjusting knob regulating this tester for electromagnetic valve, this current converter circuit outwards exports the working current of simulation, by connecting line, this working current is input in simulation Electromagnetic Valve Circuit, flow through the coil of this solenoid valve inside, make coil progressively adhesive magnet thus realize the aperture of control simulation solenoid valve.Such as, by analog quantity solenoid control hydraulic pressure, working current is less, and the magnetic force that coil produces is less, and the aperture of analog electrical magnet valve is less, and the pressure of simulation electromagnetic valve outlet is lower; Working current is larger, and the magnetic force that coil produces is larger, and the aperture of analog electrical magnet valve is larger, and analog electrical magnet valve top hole pressure is larger, and the test result of analog quantity solenoid valve can be reflected by the size of hydraulic pressure.
Further, in current converter circuit as shown in Figure 4, be also provided with range regulator potentiometer TR1 and system regulator potentiometer at zero point TR2, the working current exported for making current converter circuit is comparatively accurate.In practical operation, after Circuit assembly completes, needs are debugged.The working current of analog quantity solenoid valve is generally the continuous current of 4mA ~ 20mA.Current adjusting knob is adjusted to 4mA shelves, regulate range regulator potentiometer TR1 and system regulator potentiometer at zero point TR2, the working current exported to make current converter circuit is 4mA, again by current adjusting knob as 20mA shelves, suitably regulate TR1, TR2, make the working current of output be 20mA, regulate current adjusting knob from 4mA ~ 20mA continuously, whether test output services electric current is 4mA ~ 20mA, if the working current exported exists deviation, suitably regulates TR1, TR2 to meet the demands.
The tester for electromagnetic valve that the present embodiment provides, by current converter circuit, operating voltage is changed, to export the working current of simulation, realize the test to the duty of analog quantity solenoid valve, PLC is no longer solely relied on to test analog electrical magnet valve, improve analog electrical magnet valve test speed and efficiency, shorten the test duration.
Further, in the tester for electromagnetic valve of above-described embodiment, booster circuit can also arrange an output terminal, this output terminal is connected with non-reversing switch amount solenoid valve by connecting line, can be implemented in same tester for electromagnetic valve and both can test non-reversing switch amount solenoid valve, also can test simulation amount solenoid valve, can also realize testing non-reversing switch amount solenoid valve and analog quantity solenoid valve simultaneously.Alternatively, reversing switch can also be set between this output terminal and connecting line.The method to set up of this reversing switch and annexation can see above-mentioned corresponding embodiments.This reversing switch is connected with reversing switch amount solenoid valve by connecting line, can be implemented in same tester for electromagnetic valve and both can test reversing switch amount solenoid valve, also can test simulation amount solenoid valve, Test Switchboard amount reversing solenoid valve and analog quantity solenoid valve simultaneously can also be realized.The present embodiment does not limit.
The structural representation of the another kind of tester for electromagnetic valve that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, this tester for electromagnetic valve comprises: power supply 50, power switch 51, booster circuit 52, at least one connecting line, reversing switch 54 and current converter circuit 55.Power supply 50 and power switch 51 annexation and effect can see above-described embodiments.At the present embodiment, booster circuit 52 is provided with the first output terminal 521, second output terminal 522 and the 3rd output terminal 523 with parallel way.First output terminal 521, second output terminal 522 and the 3rd output terminal 523 include voltage output end and earth terminal.At least one connecting line is respectively the first connecting line 531, second connecting line 532 and the 3rd connecting line 533.First connecting line 531, second connecting line 532 and the 3rd connecting line 533 include first input end, the second input terminal and lead-out terminal.First output terminal 521 is connected with non-reversing switch amount solenoid valve by the first connecting line 531, can realize the test to non-reversing switch amount solenoid valve.First output terminal 521 can see above-mentioned corresponding embodiment to the annexation of the first connecting line 531.Reversing switch 54 is connected between the second output terminal 522 and the second connecting line 532, and this reversing switch 54 and second goes out end 522 and the annexation of the second connecting line 532 and the effect of this reversing switch 54 and implementation see above-mentioned corresponding embodiment.Reversing switch 54 is connected with reversing switch amount solenoid valve by the second connecting line 532, can realize the test of reversing switch amount solenoid valve.Current converter circuit 55 is connected between the 3rd output terminal 523 and the 3rd connecting line 533, and this current converter circuit 55 and the 3rd output terminal 523 and the annexation of the 3rd connecting line 533 and the effect of this current converter circuit 55 and implementation are see above-mentioned corresponding embodiment.This current converter circuit 55 is connected with analog quantity solenoid valve by the 3rd connecting line 533, can realize the test to analog quantity solenoid valve.In the present embodiment, tester for electromagnetic valve also comprises a current adjusting knob 56, and the working current of the simulation that current converter circuit 55 can be regulated to export by adjustment current adjusting knob 56, makes this working current be continuously adjustable.Optionally, this power supply 50 can export the voltage of about 9V, but is not limited thereto.Preferably, power supply 50 can adopt Rechargeable battery, then this power supply 50 can also comprise charging port, charge power supply line, thus can improve the convenience of solenoid valve test.
A kind of schematic diagram of the booster circuit of the tester for electromagnetic valve that Fig. 6 provides for the embodiment of the present invention.As shown in Figure 6, this booster circuit adopts the boost chip of MC34063A, and the operating voltage of this boost chip is 2.5 ~ 40V, and after boost conversion, the voltage of output is 1.25 ~ 40V.In Fig. 6, resistance R1, resistance R2 and electric capacity C0 form backfeed loop, are connected with the pin 5 of this boost chip.Wherein, electric capacity C0 plays filter action, the operational voltage value that this booster circuit of the ratios affect of resistance R1 and resistance R2 exports.The output voltage Vout=(1+R2/R1) 1.25 of booster circuit, as R2/R1=8.6, Vout=12V, as R2/R1=18.2, Vout=24V.In actual design, consider the pressure drop loss on loaded line, output voltage can be increased a little.Because the output voltage of booster circuit is relevant with the ratio of R1 and R2, R1 or R2 can select adjustable resistance, to reach the adjustable object of operating voltage.In the present embodiment, R2 adopts adjustable resistance as Drazin inverse resistance.Further, in the present embodiment, this tester for electromagnetic valve can also comprise one for the resistance by regulation output regulating resistance, to regulate the voltage-regulation knob 57 of operating voltage, this voltage-regulation knob 57 is connected with R2, by rotating this voltage-regulation knob 57, change the resistance value of R2, the value of the operating voltage that booster circuit 52 is exported changes.The operating voltage of general solenoid valve is 12V or 24V, the present embodiment, and can pass through regulation voltage adjusting knob 57, the operating voltage that booster circuit 52 is exported is 12V or 24V, thus improves the compatibility of this tester for electromagnetic valve.
Further, as shown in Figure 5, this tester for electromagnetic valve can also comprise the power light 58 of the duty being used to indicate power supply.This power light 58 is connected with power supply 50, is used to indicate the duty of this power supply 50.When power light 58 is bright, illustrate that power supply 50 is powered, when power light 58 does not work, illustrate that power supply 50 is not powered.This tester for electromagnetic valve can also comprise the alternator indicator 59 of the size of the working current being used to indicate simulation.This alternator indicator 59 is connected with current converter circuit 55, is used to indicate the size of the working current of the simulation that current converter circuit 55 exports.The size of the electric current that this alternator indicator 59 exports along with current converter circuit 55 and changing.
Further, this tester for electromagnetic valve can also comprise a shell, and power supply 50, booster circuit 52 and current output circuit 55 are all arranged on the inside of this shell.This shell plays a protective role to tester for electromagnetic valve.Power switch 51, reversing switch 54, current adjusting knob 56, voltage-regulation knob 57, power light 58 and alternator indicator 59 are all projecting on shell, so that operate this tester for electromagnetic valve and the confirmation of current operating state, and by the state of viewing lamp, the duty of tester for electromagnetic valve can be detected.Further, current adjusting knob 56 and voltage-regulation knob 57 are in shell surface etch gear value.The output terminal of booster circuit and the output terminal of current converter circuit projecting port on shell, thus by the port that connecting line is arranged from shell, be connected with solenoid valve to be measured easily, to test electromagnetism to be measured.
Carry out in engineering machinery, in the process of debugging, when certain solenoid valve does not work, the connection of PLC program side can being disconnected, this tester for electromagnetic valve is connected with this idle solenoid valve in engineering machinery, carries out failture evacuation.Such as, when this solenoid valve is switching value solenoid valve, after this tester for electromagnetic valve is connected with this solenoid valve, by the closed of power switch or disconnection, output switch amount signal, to this solenoid valve input switch amount signal, solenoid valve performs adhesive or disconnection accordingly, or the corresponding states observing the instruction of the relay indicating light of solenoid valve is normal, illustrates that this fault is not that circuit causes; After this tester for electromagnetic valve is connected with this solenoid valve, to this solenoid valve input switch amount signal, solenoid valve does not perform adhesive or disconnection accordingly, or the corresponding states of the instruction observing electromagnetic valve work pilot lamp is abnormal, illustrates that this fault may be that circuit causes.Therefore, can judge whether the idle reason of solenoid valve is circuit reason exactly by this tester for electromagnetic valve.The tester for electromagnetic valve that the present embodiment provides namely can output switch amount signal, the on-off model of the commutation that also can export, the working current of simulation can also be exported, thus may be used for the eliminating of non-reversing switch amount solenoid valve, reversing switch amount solenoid valve and analog quantity solenoid valve failure, improve the efficiency of the detection failure of solenoid valve.
When Practical Project mechanical work, when breaking down suddenly, when this fault can not export by PLC program the output signal controlling certain solenoid valve action, and when causing fault, this tester for electromagnetic valve can be directly utilized to provide a pumping signal to this solenoid valve, make this electromagnetic valve work, emergency processing is carried out to the engineering machinery of fault, thus the probability of accident generation can be reduced.Such as, engineering machinery, when positive on-line operation, breaks down suddenly, as, because switch/rotating signal is malfunctioning, and cause certain solenoid valve not work, then PLC program cannot provide output signal, thus the uncontrollable corresponding engineering machinery part executable operations of this solenoid valve.Because engineering machinery is when positive on-line operation, the processing time of accident can not exceed official hour, otherwise can be decided to be security incident higher grade accident, as B, C class accident.In this case, operating personnel can utilize this tester for electromagnetic valve to input a control signal to this solenoid valve, make its temporarily normal work, can play emergencing action, thus can reduce the probability of accident generation.
The integrated power supply of the tester for electromagnetic valve that the present embodiment provides, power switch, booster circuit, reversing switch and current converter circuit, and multiple output port is set, the test to non-reversing switch amount solenoid valve, reversing switch amount solenoid valve and analog quantity solenoid valve can be realized in this tester for electromagnetic valve, thus shorten the test duration of solenoid valve further, improve testing efficiency, and the efficiency of malfunction elimination can be improved, emergencing action can also be played to burst accident, and then the probability that reduction accident occurs.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a tester for electromagnetic valve, is characterized in that, comprising: power supply, power switch and booster circuit;
For providing the described power supply of the first voltage by described power switch and for carrying out boost conversion to described first voltage, to export the operating voltage needed for solenoid valve to be measured, connect with the described booster circuit tested described solenoid valve to be measured;
Described booster circuit is also connected with described solenoid valve to be measured;
Described tester for electromagnetic valve, also comprises: at least one connecting line, for the reversing switch that commutates to described operating voltage and the current converter circuit for carrying out electric current conversion to described operating voltage;
Described booster circuit is provided with the first output terminal, the second output terminal and the 3rd output terminal with parallel way; At least one connecting line described is respectively the first connecting line, the second connecting line and the 3rd connecting line;
Described first connecting line, described second connecting line and described 3rd connecting line include first input end, the second input terminal and lead-out terminal;
First input end of described first connecting line is connected with described first output terminal, and the second input terminal of described first connecting line is connected with the earth terminal of described booster circuit; The lead-out terminal of described first connecting line is connected with non-reversing switch amount solenoid valve;
Described reversing switch is connected between first input end of described second output terminal and described second connecting line; The lead-out terminal of described second connecting line is connected with reversing switch amount solenoid valve;
Described current converter circuit is connected between first input end of described 3rd output terminal and described 3rd connecting line; The lead-out terminal of described 3rd connecting line is connected with analog electrical magnet valve.
2. tester for electromagnetic valve according to claim 1, is characterized in that, described reversing switch comprises: forward end points, room end points, oppositely end points and switch shift lever;
Described switch shift lever is connected with described second output terminal, described forward end points and described reverse end points respectively with the first input end sub-connection of described second connecting line, described room end points is unsettled.
3. tester for electromagnetic valve according to claim 1, is characterized in that, described current converter circuit comprises: input rectification circuit, low-pass filter circuit, reference voltage produce and adder circuit, voltage/current conversion circuit and current adjusting knob;
For carrying out rectification process to described operating voltage, be connected with described 3rd output terminal with the described input rectification circuit exporting DC voltage; Described low-pass filter circuit for carrying out filtering process to described DC voltage is connected with described input rectification circuit; For according to the filtered DC voltage of described low-pass filter, the described reference voltage generating continuous print voltage signal produces and is connected with described low-pass filtering with adder circuit; For converting described continuous print voltage signal to current signal, to produce with described reference voltage with the described voltage/current conversion circuit exporting the working current of described simulation and being connected with adder circuit;
For the resistance by regulating input regulating resistance, be connected with the described input regulating resistance in described input rectification circuit to realize the continuously adjustable described current adjusting knob of the working current of described simulation.
4. tester for electromagnetic valve according to claim 1 and 2, is characterized in that, also comprises: for the resistance by regulation output regulating resistance, to regulate the voltage-regulation knob of described operating voltage; Described voltage-regulation knob is connected with the described Drazin inverse resistance in described booster circuit.
5. tester for electromagnetic valve according to claim 1 and 2, is characterized in that, also comprises: the power light being used to indicate the duty of described power supply, and described power light is connected with described power supply.
6. tester for electromagnetic valve according to claim 1, is characterized in that, also comprises: the alternator indicator being used to indicate the size of the working current of described simulation, and described alternator indicator is connected with described current converter circuit.
7. tester for electromagnetic valve according to claim 1, is characterized in that, also comprises: shell;
Described power supply, described booster circuit and described current output circuit are arranged on the inside of described shell.
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| CN201210359547.1A CN102879678B (en) | 2012-09-24 | 2012-09-24 | Tester for electromagnetic valve |
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| CN201210359547.1A CN102879678B (en) | 2012-09-24 | 2012-09-24 | Tester for electromagnetic valve |
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| CN102879678B true CN102879678B (en) | 2015-06-03 |
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| CN105158527B (en) * | 2015-09-02 | 2017-09-29 | 合肥通用机械研究院 | Solenoid valve power connection device |
| CN108445319A (en) * | 2018-03-15 | 2018-08-24 | 攀钢集团西昌钢钒有限公司 | A kind of fault detect tool for solenoid valve |
| CN108226773A (en) * | 2018-03-28 | 2018-06-29 | 上海磁浮交通发展有限公司 | The portable tester and test method of pantagraph current collector and its controller solenoid valve |
| CN110228631A (en) * | 2019-07-19 | 2019-09-13 | 河钢股份有限公司承德分公司 | The packing head test device and method of wire baler |
| CN110906989A (en) * | 2019-12-31 | 2020-03-24 | 中铁工程装备集团盾构制造有限公司 | Portable electrical detection equipment and method for shield machine |
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| CN101477870A (en) * | 2008-09-27 | 2009-07-08 | 北京理工大学 | Generation method and apparatus for electromagnetic valve driving current |
| CN201296243Y (en) * | 2008-10-28 | 2009-08-26 | 南车南京浦镇车辆有限公司 | Brake electropneumatic conversion device of railway vehicle |
| CN101728053A (en) * | 2008-10-21 | 2010-06-09 | 杨晟 | Bistable electromagnetic driver and product with the same |
| CN201650475U (en) * | 2010-03-03 | 2010-11-24 | 中国一拖集团有限公司 | Electric control unit pump fuel injector driver |
| CN202815119U (en) * | 2012-09-24 | 2013-03-20 | 北京二七轨道交通装备有限责任公司 | Tester for electromagnetic valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05232172A (en) * | 1992-02-20 | 1993-09-07 | Fuji Electric Co Ltd | Method and device for testing power amplifier |
| FR2923962B1 (en) * | 2007-11-20 | 2009-11-20 | Valeo Sys Controle Moteur Sas | VOLTAGE ELEVATOR CIRCUIT |
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|---|---|---|---|---|
| CN101477870A (en) * | 2008-09-27 | 2009-07-08 | 北京理工大学 | Generation method and apparatus for electromagnetic valve driving current |
| CN101728053A (en) * | 2008-10-21 | 2010-06-09 | 杨晟 | Bistable electromagnetic driver and product with the same |
| CN201296243Y (en) * | 2008-10-28 | 2009-08-26 | 南车南京浦镇车辆有限公司 | Brake electropneumatic conversion device of railway vehicle |
| CN201650475U (en) * | 2010-03-03 | 2010-11-24 | 中国一拖集团有限公司 | Electric control unit pump fuel injector driver |
| CN202815119U (en) * | 2012-09-24 | 2013-03-20 | 北京二七轨道交通装备有限责任公司 | Tester for electromagnetic valve |
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Address after: 100072 Beijing city Fengtai District Changxindian Yang Gong Zhuang No. 1 Patentee after: CNR BEIJING FEB.7TH LOCOMOTIVE CO., LTD. Address before: 100072 Beijing city Fengtai District Changxindian Yang Gong Zhuang No. 1 Patentee before: Beijing Erqi Railway Traffic Equipment Co., Ltd. |
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