CN207393633U - A kind of servo valve test control device - Google Patents
A kind of servo valve test control device Download PDFInfo
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- CN207393633U CN207393633U CN201721237424.5U CN201721237424U CN207393633U CN 207393633 U CN207393633 U CN 207393633U CN 201721237424 U CN201721237424 U CN 201721237424U CN 207393633 U CN207393633 U CN 207393633U
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- voltage
- test control
- servo valve
- stabiliser tube
- control device
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Abstract
The utility model discloses a kind of servo valve test control device, including a test control circuit, wherein, the test control circuit, including：AC transformer；Single-phase bridge rectification bridge is connected with the AC transformer；Three-terminal voltage-stabilizing pipe connects with the single-phase bridge rectification bridging；Compare amplifying circuit, be connected with the three-terminal voltage-stabilizing pipe；Two end voltage-stabiliser tubes, amplifying circuit connects compared with described.The utility model is solved in the prior art when testing servo valve, there is the safety that can not ensure Field Force, and the amount of labour is larger, the technical issues of losing time.It realizes when testing servo valve, can ensure the safety of Field Force, reduce the amount of labour, time-saving technique effect.
Description
Technical field
The utility model is related to electronic technology field more particularly to a kind of servo valve test control devices.
Background technology
When at present, under hot rolling and cold rolling mill roll compacting, mostly controlled using electrohydraulic servo valve, particular by PLC
The control signal that (Programmable Logic Controller, programmable logic controller (PLC)) system generates controls servo
The opening of valve, so as to adjust position, angle of scene needs etc..
After hydraulic cylinder, servo valve replacement, when carrying out test and malfunction elimination, it is necessary to which reciprocal perform of Field Force is moved
Make, need system blackout when checking processing, when test, needs system electrification, Field Force need using intercom remote contact its
Its personnel confirms reciprocating operation.But in actual mechanical process, the promptness of action can not be ensured, be not easy to ensure existing
The safety of field personnel, and field personnel's amount of labour is larger, waste many times, add test run and the dangerous of malfunction elimination is
Number reduces operation and the harmony checked.
To sum up, at present when testing servo valve, at least in the presence of can not ensure the safety of Field Force, the amount of labour compared with
Greatly, the technical issues of losing time.
Utility model content
The embodiment of the present application is solved in the prior art by providing a kind of servo valve test control device to servo valve
When being tested, there is the safety that can not ensure Field Force, the amount of labour is larger, the technical issues of losing time, and realizes
When testing servo valve, the safety of Field Force can be ensured, reduce the amount of labour, time-saving technique effect.
This application provides a kind of servo valve test control device, including test control circuit, wherein, the testing and control
Circuit, including：
AC transformer；
Single-phase bridge rectification bridge is connected with the AC transformer；
Three-terminal voltage-stabilizing pipe connects with the single-phase bridge rectification bridging；
Compare amplifying circuit, be connected with the three-terminal voltage-stabilizing pipe；
Two end voltage-stabiliser tubes, amplifying circuit connects compared with described.
Preferably, the three-terminal voltage-stabilizing pipe, including：
Three rectify voltage-stabiliser tube, and described three rectify the input terminal of voltage-stabiliser tube and the first output terminal of the single-phase bridge rectification bridge
Connection；
Voltage-stabiliser tube is born at three ends, and the input terminal of voltage-stabiliser tube and the second output terminal of the single-phase bridge rectification bridge are born in three end
Connection.
Preferably, the relatively amplifying circuit, including：
Than calibration amplifying circuit, the output terminal that the collector than calibration amplifying circuit rectifies voltage-stabiliser tube with described three connects
It connects,
Compare negative amplifying circuit, the collector of amplifying circuit is born in the comparison and the output terminal company of voltage-stabiliser tube is born at three end
It connects.
Preferably, two end voltage-stabiliser tube, including：
Two rectify voltage-stabiliser tube, and described two cathode for rectifying voltage-stabiliser tube are connected with the emitter than calibration amplifying circuit,
Described two rectify the plus earth of voltage-stabiliser tube；
Voltage-stabiliser tube is born at two ends, and the cathode that voltage-stabiliser tube is born at two end is born the emitter of amplifying circuit with the comparison and is connected,
Bear the plus earth of voltage-stabiliser tube in two end.
Preferably, the servo valve test control device, further includes：
Shell；
Wherein, the AC transformer, the single-phase bridge rectification bridge, the three-terminal voltage-stabilizing pipe, the relatively amplification electricity
Road and two end voltage-stabiliser tube are arranged in the shell.
Preferably, the servo valve test control device, further includes：
Operation panel, insertion is on the housing.
Preferably, leading-out terminal, the leading-out terminal and the test control circuit are provided on the operation panel
Output terminal connection.
Preferably, output button is provided on the operation panel, wherein, when the output button is pressed, institute
Stating leading-out terminal has voltage output.
Preferably, voltage output indicator light is provided on the operation panel, wherein, there is voltage in the leading-out terminal
During output, the voltage output indicator light lights.
Preferably, voltage adjusting knob is provided on the operation panel, the voltage adjusting knob is used to adjust institute
State the size of the voltage of leading-out terminal output.
The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages：
In the embodiment of the present application, a kind of servo valve test control device is disclosed, including test control circuit, wherein,
The test control circuit, including：AC transformer；Single-phase bridge rectification bridge is connected with the AC transformer；Three-terminal voltage-stabilizing
Pipe, connects with the single-phase bridge rectification bridging；Compare amplifying circuit, be connected with the three-terminal voltage-stabilizing pipe；Two end voltage-stabiliser tubes, with institute
It states and compares amplifying circuit connection.Present application addresses when testing servo valve, exist not ensureing now in the prior art
The safety of field personnel.It adds the amount of labour, waste the technical issues of time, realize when testing servo valve, it can
To ensure the safety of Field Force, the amount of labour, time-saving technique effect are reduced.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structure chart of servo valve test control device in the embodiment of the present application；
Fig. 2 is the structure chart of the test control circuit in the embodiment of the present application；
Fig. 3 is the structure chart of the operation panel in the embodiment of the present application；
Fig. 4 is scene graph of the servo valve test control device when testing servo valve in the embodiment of the present application.
Specific embodiment
The embodiment of the present application is solved in the prior art by providing a kind of servo valve test control device to servo valve
When being tested, there is the safety that can not ensure Field Force, the amount of labour is larger, the technical issues of losing time, and realizes
When testing servo valve, the safety of Field Force can be ensured, reduce the amount of labour, time-saving technique effect.
The technical solution of the embodiment of the present application is in order to solve the above technical problems, general thought is as follows：
A kind of servo valve test control device, including test control circuit, wherein, the test control circuit, including：It hands over
Convertor transformer；Single-phase bridge rectification bridge is connected with the AC transformer；Three-terminal voltage-stabilizing pipe, with the single-phase bridge rectification bridge
Connection；Compare amplifying circuit, be connected with the three-terminal voltage-stabilizing pipe；Two end voltage-stabiliser tubes, amplifying circuit connects compared with described.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
Embodiment one
As shown in Figure 1, a kind of servo valve test control device 100 is present embodiments provided, including a test control circuit
110, wherein, test control circuit 110, including：
AC transformer 111；
Single-phase bridge rectification bridge 112 is connected with AC transformer 111；
Three-terminal voltage-stabilizing pipe 113 is connected with single-phase bridge rectification bridge 112；
Compare amplifying circuit 114, be connected with steady 113 pressure pipe in three end；
Two end voltage-stabiliser tubes 115, amplifying circuit 114 connects compared with.
In specific implementation process, test control circuit 110 is used to that the alternating current of 220V (volt) to be converted to and can used
In ± the 2V tested servo valve direct current (i.e.：The direct current between direct current or, 0~+2V between -2~0V
Electricity).
In more detail, as shown in Fig. 2, AC transformer 111 tool there are two input terminal (i.e.：Input terminal 11 and input terminal
12), the two input terminals are also the input terminal of entire test control circuit 110, for accessing the alternating current of 220V.AC transformation
Device 111 is specially toroidal transformer, and 220V alternating currents can be converted to 24V by model EEIO-C120VA-220V/24V
Alternating current.Wherein, AC transformer 111 also have there are two output terminal (i.e.：Output terminal 13 and output terminal 14), pass through the two
The alternating current of output terminal, that is, exportable 24V.
In specific implementation process, there are two input terminals for the tool of single-phase bridge rectification bridge 112 (i.e.：Input terminal 21 and input terminal
22), wherein, input terminal 21 is connected with the output terminal 13 of AC transformer 111, the output of input terminal 22 and AC transformer 111
14 connection of end.The concrete model of single-phase bridge rectification bridge 112 be KBU810, the friendship for the 24V that AC transformer 111 can be exported
Galvanic electricity is rectified into the direct current of ± 40V.Wherein, single-phase bridge rectification bridge 112 also have there are two output terminal (i.e.：23 He of output terminal
Output terminal 24), output terminal 23 is used to export the direct current of+40V, and output terminal 24 is used to export the direct current of -40V.
In specific implementation process, capacitance C1 and capacitance C2 are additionally provided in test control circuit 110, connection mode is such as
Shown in Fig. 2, wherein, capacitance C1 is identical with capacitance C2, and capacitance is 1000uF.
In specific implementation process, single-phase bridge rectification bridge 112 export ± 40V direct currents by three-terminal voltage-stabilizing pipe 113,
Compare amplifying circuit 114, two end voltage-stabiliser tubes 115 processing after, can test control circuit 110 output terminal (i.e.：Output terminal 71
With output terminal 72) output ± 2V direct currents, are somebody's turn to do the test that ± 2V direct currents can be used to servo valve.
Further, three-terminal voltage-stabilizing pipe 113, including：
Three rectify voltage-stabiliser tube 1131, and three rectify the input terminal 31 and the first of single-phase bridge rectification bridge 112 of voltage-stabiliser tube 1131
Output terminal 23 connects, and three ground terminals 33 for rectifying voltage-stabiliser tube 1131 are grounded；
Voltage-stabiliser tube 1132 is born at three ends, and the input terminal 41 and the second of single-phase bridge rectification bridge 112 of voltage-stabiliser tube 1132 is born at three ends
Output terminal 24 connects, and the ground terminal 43 that voltage-stabiliser tube 1132 is born at three ends is grounded.
Further, amplifying circuit 114 is compared, including：
Than calibration amplifying circuit 1141, the collector 51 than calibration amplifying circuit 1141 rectifies the defeated of voltage-stabiliser tube 1131 with three
Outlet 32 connects,
Compare negative amplifying circuit 1142, the collector 61 of relatively more negative amplifying circuit 1142 bears the defeated of voltage-stabiliser tube 1132 with three ends
Outlet 42 connects.
Wherein, capacitance C3, capacitance C4, capacitance C5, capacitance C6, capacitance C7, electricity are additionally provided in test control circuit 110
Hold C8, connection mode is as indicated with 2.Wherein, capacitance C3 is identical with capacitance C4, capacitance 0.33uF；Capacitance C5 and capacitance C6 phases
Together, capacitance 0.1uF；Capacitance C7 is identical with capacitance C8, capacitance 220uF.
In specific implementation process, in test control circuit 110 set there are two three-terminal voltage-stabilizing pipe (i.e.：Three rectify surely
Bear voltage-stabiliser tube 1132 in 1131 and three end of pressure pipe) and two three-terminal voltage-stabilizing pipes are (i.e.：Than calibration amplifying circuit 1141 and compare negative amplification
Circuit 1142).Wherein, three rectify 1131 and three ends of voltage-stabiliser tube identical, the concrete model L7805CV that bears voltage-stabiliser tube 1132；Compare
Positive amplifying circuit 1141 and relatively more negative amplifying circuit 1142 are identical.
In specific implementation process, three rectify voltage-stabiliser tube 1131 and than one group of decompression electricity of calibration amplifying circuit 1141 and composition
Road, voltage-stabiliser tube 1132 is born at three ends and relatively negative amplifying circuit 1142 forms another group of reduction voltage circuit, this two groups of reduction voltage circuits can be with
The direct current for ± the 40V that single-phase bridge rectification bridge 112 is exported is converted to the direct current of ± 15V.
Further, two end voltage-stabiliser tube 115, including：
Two rectify voltage-stabiliser tube 1151, and two rectify the cathode of voltage-stabiliser tube 1151 and the emitter 52 than calibration amplifying circuit 1141
Connection, two rectify the plus earth of voltage-stabiliser tube 1151；
Voltage-stabiliser tube 1152 is born at two ends, and the emitter 62 of cathode negative amplifying circuit 1142 compared with of voltage-stabiliser tube 1152 is born at two ends
Connection, the plus earth of voltage-stabiliser tube 1152 is born at two ends.
In specific implementation process, two rectify 1151 and two ends of voltage-stabiliser tube, and to bear voltage-stabiliser tube 1152 identical, is all patch rectification
Diode, concrete model 1N4615.
In specific implementation process, two rectify 1151 and two ends of voltage-stabiliser tube bear voltage-stabiliser tube 1152 for by it is previously obtained ±
The direct current of 15V is converted to ± 2V direct currents, and passes through the output terminal of test control circuit 110 (i.e.：Output terminal 71 and output terminal
72) output should ± 2V direct currents.
Further, servo valve test control device 100, further includes：
Shell (not shown)；
Wherein, test control circuit 110 is arranged in the shell, and shell plays a protective role, and control electricity is tried for protecting
Road 110.
Further, servo valve test control device 100, further includes：Operation panel 120, insertion is on the shell.
In specific implementation process, as shown in figure 3, being provided on operation panel 120：Power knob 121, voltage stabilizing instruction
Lamp 122, voltage output indicator light 123, output button 124, voltmeter 125, voltage adjusting knob 126, ammeter 127, output
Terminal 128.
Wherein, power knob 121 is used to control the conducting and disconnection of the 220V alternating currents of 111 front end of AC transformer,
When power knob 121 is pressed, then 220V exchanges is electrically accessed in test control circuit 110, be not pressed in power knob 121
When, then 220V is exchanged and disconnected.
Wherein, leading-out terminal 128 is used to export ± 2V direct currents that test control circuit 110 finally exports (i.e.：- 2~0V
Between direct current or, 0~+2V between direct current).
Wherein, the output that button 124 is used for control output end 128 is exported, when output button 124 is pressed, output
Terminal 128 has voltage output, and when output button 124 is not pressed, leading-out terminal 128 does not have voltage output.
Wherein, voltage output indicator light 123 is used to indicate leading-out terminal 128 either with or without voltage output, in leading-out terminal 128
When having voltage output, voltage output indicator light 123 lights, when leading-out terminal 128 does not have voltage output, voltage output indicator light
123 extinguish.
Wherein, voltage stabilizing indicator light 122 is used to indicate whether the voltage that leading-out terminal 128 exports is stablized, if stablizing, voltage stabilizing
Indicator light 122 lights, if unstable, voltage stabilizing indicator light 122 extinguishes.
Wherein, voltage adjusting knob 126, for adjusting the size of the voltage of the output of leading-out terminal 128, wherein, voltage tune
Saving knob 126 includes a coarse adjustment knob (coarse adjustment for being used for voltage) and an accurate adjustment knob (accurate adjustment for being used for voltage).
Wherein, voltmeter 125 is used to indicate the voltage value size of the output of leading-out terminal 128.
Wherein, ammeter 127 is used to indicate the current value size of the output of leading-out terminal 128.
In the actual production process, as shown in figure 4, PLC controller 600 is for exporting control signal, interface board 500 plays
Control signal is passed to AMPI (Amplifier, amplifier) control panel 400, AMPI controls by wiring and the effect of signal transfer
For plate 400 for being amplified to control signal, amplified signal may be output to servo valve 200, so as to servo valve 200 into
Row control.
In the present embodiment, terminal box 300 is additionally arranged, terminal box 300 is connected to servo valve 200 and AMPI control panels 400
Between, and terminal box 300 is also connected with servo valve test control device 100.310 He of interlock switch is provided in terminal box 300
Terminal 320, two switch interlocks of A and B of interlock switch 310 are (i.e.：Switch A and switch B cannot close a floodgate simultaneously).In interlock switch
When 310 switch A is disconnected, servo valve 200 is disconnected with PLC controller 600, when the switch A of interlock switch 310 closes a floodgate, servo
Valve 200 is connected with PLC controller 600；When the switch B of interlock switch 310 is closed a floodgate, servo valve 200 and this servo valve test
100 circuit of control device connects (terminal D is in parallel with terminal C, is connected by terminal C and servo valve 200), by interlock switch
When 310 switch B is disconnected, servo valve 200 is disconnected with 100 circuit of this servo valve test control device.
As shown in figure 4, when servo valve test control device 100 is used to test servo valve 200, servo valve is surveyed
The leading-out terminal 128 of examination control device 100 is connected on terminal box 300, wherein, leading-out terminal 128 connects servo valve 200 respectively
Positive pole, power cathode and the earth or casing.And the switch B of interlock switch 310 is closed a floodgate so that servo valve 200 and servo
100 circuit of valve test control device is connected.
In official testing, first, power knob 121 is pressed so that take the friendship that valve test control device 100 accesses 220V
In galvanic electricity；Then, output button 124 is pressed, it is seen that after voltage output indicator light 123 lights, representing leading-out terminal 128 has voltage
Output continues to adjust voltage adjusting knob 126, and observes voltmeter 125 and ammeter 127, obtains a preferably output；Together
When, it can judge whether the voltage of output is stablized by observing voltage stabilizing indicator light 122, it is therefore an objective to stablize in leading-out terminal 128
Exporting a control signal, (control signal is ± 2V direct currents, i.e. the direct current between direct current or 0~+2V between -2~0V
Electricity), which is used to simulate the control signal of PLC controller output, so as to test taking valve 200, mainly surveys
Examination takes the stroke and the speed of service of valve 200.
By using servo valve test control device 100, current mode servo hydraulic cylinder and current mode servo valve can be realized
Live quick acting test, reduce the amount of labour, save the time, at the same time it can also reduce the dangerous system of test run and malfunction elimination
Number increases operation and the harmony checked.
Technical solution in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage：
In the embodiment of the present application, a kind of quick test control device of servo valve is disclosed, including：AC transformer；
Single-phase bridge rectification bridge is connected with the AC transformer；Three-level voltage-stabiliser tube connects with the single-phase bridge rectification bridging；Compare
Amplifying circuit is connected with the three-level voltage-stabiliser tube；Two end voltage-stabiliser tubes, amplifying circuit connects compared with described.Present application addresses
In the prior art when testing servo valve, there is the safety that can not ensure Field Force, the amount of labour is larger, loses time
The technical issues of, it realizes when testing servo valve, ensures the safety of Field Force, reduce the amount of labour, save the time
Technique effect.
Although the preferred embodiment of the utility model has been described, those skilled in the art once know substantially
Creative concept can then make these embodiments other change and modification.So appended claims are intended to be construed to wrap
It includes preferred embodiment and falls into all change and modification of the scope of the utility model.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
New spirit and scope.If in this way, these modifications and variations of the utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these modification and variations.
Claims (10)
1. a kind of servo valve test control device, which is characterized in that including a test control circuit, wherein, the testing and control
Circuit, including：
AC transformer；
Single-phase bridge rectification bridge is connected with the AC transformer；
Three-terminal voltage-stabilizing pipe connects with the single-phase bridge rectification bridging；
Compare amplifying circuit, be connected with the three-terminal voltage-stabilizing pipe；
Two end voltage-stabiliser tubes, amplifying circuit connects compared with described.
2. servo valve test control device as described in claim 1, which is characterized in that the three-terminal voltage-stabilizing pipe, including：
Three rectify voltage-stabiliser tube, and the first output terminal of described three input terminals and the single-phase bridge rectification bridge for rectifying voltage-stabiliser tube connects
It connects；
Voltage-stabiliser tube is born at three ends, and the second output terminal of input terminal and the single-phase bridge rectification bridge that voltage-stabiliser tube is born at three end connects
It connects.
3. servo valve test control device as claimed in claim 2, which is characterized in that the relatively amplifying circuit, including：
Than calibration amplifying circuit, the output terminal that the collector than calibration amplifying circuit rectifies voltage-stabiliser tube with described three is connected,
Compare negative amplifying circuit, the collector that amplifying circuit is born in the comparison is connected with the output terminal that voltage-stabiliser tube is born at three end.
4. servo valve test control device as claimed in claim 3, which is characterized in that two end voltage-stabiliser tube, including：
Two rectify voltage-stabiliser tube, and described two cathode for rectifying voltage-stabiliser tube are connected with the emitter than calibration amplifying circuit, described
Two rectify the plus earth of voltage-stabiliser tube；
Voltage-stabiliser tube is born at two ends, and the cathode that voltage-stabiliser tube is born at two end is born the emitter of amplifying circuit with the comparison and is connected, described
Bear the plus earth of voltage-stabiliser tube in two ends.
5. the servo valve test control device as described in Claims 1 to 4 is any, which is characterized in that the servo valve test control
Device processed, further includes：
Shell；
Wherein, the test control circuit is arranged in the shell.
6. servo valve test control device as claimed in claim 5, which is characterized in that the servo valve test control device,
It further includes：
Operation panel, insertion is on the housing.
7. servo valve test control device as claimed in claim 6, which is characterized in that be provided on the operation panel defeated
Go out terminal, the leading-out terminal is connected with the output terminal of the test control circuit.
8. servo valve test control device as claimed in claim 7, which is characterized in that be provided on the operation panel defeated
Go out button, wherein, when the output button is pressed, the leading-out terminal has voltage output.
9. servo valve test control device as claimed in claim 7, which is characterized in that be provided with electricity on the operation panel
Output indicator is pressed, wherein, when the leading-out terminal has voltage output, the voltage output indicator light lights.
10. servo valve test control device as claimed in claim 7, which is characterized in that be provided on the operation panel
Voltage adjusting knob, the voltage adjusting knob are used to adjust the size of the voltage of the leading-out terminal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237424.5U CN207393633U (en) | 2017-09-25 | 2017-09-25 | A kind of servo valve test control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237424.5U CN207393633U (en) | 2017-09-25 | 2017-09-25 | A kind of servo valve test control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393633U true CN207393633U (en) | 2018-05-22 |
Family
ID=62405089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721237424.5U Active CN207393633U (en) | 2017-09-25 | 2017-09-25 | A kind of servo valve test control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393633U (en) |
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2017
- 2017-09-25 CN CN201721237424.5U patent/CN207393633U/en active Active
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