CN212229112U - Positive and negative two-way stirring motor operating condition monitoring switch - Google Patents
Positive and negative two-way stirring motor operating condition monitoring switch Download PDFInfo
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- CN212229112U CN212229112U CN202020467873.4U CN202020467873U CN212229112U CN 212229112 U CN212229112 U CN 212229112U CN 202020467873 U CN202020467873 U CN 202020467873U CN 212229112 U CN212229112 U CN 212229112U
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Abstract
The utility model discloses a positive and negative two-way stirring motor working state monitoring switch, which comprises a detection coil arranged at the tail part of a stirring motor, a first wiring port and a second wiring port, wherein the two ends of the detection coil are respectively connected with a first wiring end and a second wiring end of the first wiring port; the second wiring port is connected with an external PLC; the circuit also comprises a main circuit, wherein the main circuit comprises a rectifying and filtering circuit and a working state detection circuit. The utility model aims at providing a can accurate stall time length, the two-way agitator motor operating condition monitoring switch of positive and negative that can output alarm signal that detect the motor.
Description
Technical Field
The utility model belongs to agitator motor work field, concretely relates to positive and negative two-way agitator motor operating condition monitoring switch.
Background
In industrial production, the liquid mixing device requires that solid micro particles in liquid are in a uniform mixing state, the state is maintained by stirring and rotating the liquid, if the stirring motor breaks down and stops stirring, the solid micro particles sink in the liquid, the working requirement is not met, the production is seriously influenced, and the working state of the motor needs to be monitored in real time.
Stirring motor's positive and negative bidirectional stirring is a more special process, comprises the triplex, is corotation several seconds respectively, and the stall several seconds, the reversal several seconds again, the stall several seconds are a cycle again, and reciprocating cycle goes on, and specific time length formulates according to equipment technological requirement, and only time parameter is suitable, can guarantee solid particle evenly distributed in liquid. If the stirring motor is stopped for a certain time, solid particles sink and aggregate, and a production accident can be caused in a serious case. Therefore, a detection switch which can be matched with the PLC and can detect the stalling time of the motor is urgently needed at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims to provide a two-way stirring motor operating condition monitoring switch of just turning round of can accurate detection motor stall time length, ability output alarm signal.
In order to realize the purpose, the utility model discloses a technical scheme be:
a positive and negative two-way stirring motor working state monitoring switch comprises a detection coil, a first wiring port, a second wiring port and a main circuit, wherein the detection coil, the first wiring port and the second wiring port are arranged at the tail part of a stirring motor; the first wiring terminal and the second wiring terminal are connected with a second wiring port through a main body circuit, and the second wiring port is connected with an external PLC;
the main circuit comprises a rectifying and filtering circuit and a working state detection circuit which are sequentially connected.
Preferably, the rectifying and filtering circuit comprises a first capacitor and a first diode, a first terminal is connected with the anode of the first diode, the cathode of the first diode is respectively connected with the anode of the first capacitor, one end of the first resistor and one end of the second resistor, a second terminal is connected with the other electrode of the first capacitor and the other end of the first resistor and then grounded, and the other end of the second resistor is connected with the working state detection circuit.
Preferably, the working state detection circuit comprises a first triode, an operational amplifier, a second triode and a relay; the base electrode of the first triode is connected with the other end of the second resistor, the emitting electrode of the first triode is grounded, the collector electrode of the first triode is respectively connected with one end of the third resistor, one electrode of the second capacitor and the positive input end of the operational amplifier, the other electrode of the second capacitor is grounded after being connected with the positive power supply of the operational amplifier, the other electrode of the third resistor is respectively connected with one electrode of the third capacitor and the external direct current 24V, the other electrode of the third capacitor is grounded, the inverting input end of the operational amplifier is connected with the adjusting end of the adjustable resistor, one end of the adjustable resistor is connected with the external direct current 24V, the other end of the adjustable resistor is connected with the negative power supply of the operational amplifier and then is connected with the external direct current 24V, the output end of the operational amplifier is connected with one end of the fourth resistor, the other end of the fourth resistor is respectively connected with one electrode of the fourth capacitor and the base electrode of the second triode, the other electrode of the fourth capacitor, the collecting electrode of second triode respectively with emitting diode's negative pole, the positive pole of second diode, the one end of relay coil links to each other, the one end of fifth resistance is connected to emitting diode's positive pole, the other end of fifth resistance and the negative pole of second diode, the other end of relay coil links to each other and connects on external direct current 24V, the one end of relay normally open contact respectively with external direct current 24V, the positive 24V end of second wiring mouth links to each other, the other end of relay normally open contact respectively with the one end of sixth resistance, the signal output part of second wiring mouth links to each other, the other end of sixth resistance links to each other with the earthing terminal of second wiring mouth after linking to each other.
The utility model discloses the beneficial effect who has does:
the utility model discloses can set for the threshold value of second electric capacity C2 both ends voltage through adjustable resistance RW1, when the agitator motor was normal stall for a short time, second electric capacity C2 will be discharged by the short circuit, and the voltage of second electric capacity C2 can't rise the threshold value of settlement forever, just can not output alarm signal; when the stop time of the stirring motor is too long, the voltage at the two ends of the second capacitor C2 is increased to a set threshold value, so that the relay JDQ1 is attracted, the second wiring port CON2 of the detection switch outputs 24V voltage to the external PLC, the light-emitting diode LED1 is lightened, a worker is reminded of monitoring the current working state of the switch, the detection of the stop time of the stirring motor is realized, and an alarm signal is output in the detection process.
Drawings
Fig. 1 is a circuit diagram of the main body of the present invention.
Detailed Description
The switch for monitoring the working state of the forward and reverse bidirectional stirring motor shown in fig. 1 comprises a detection coil arranged at the tail part of the stirring motor, a first wiring port CON1, a second wiring port CON2 and a main circuit, wherein two ends of the detection coil are respectively connected with a first wiring terminal P1 and a second wiring terminal P2 of a first wiring port CON 1; the second connection port CON2 is connected to an external PLC.
The main circuit comprises a rectifying filter circuit and a working state detection circuit, the rectifying filter circuit comprises a first capacitor C1 and a first diode D1, and the working state detection circuit comprises a first triode Q1, an operational amplifier U1, a second triode Q2 and a relay JDQ 1; a first terminal P1 is connected with the anode of a first diode D1, the cathode of the first diode D1 is respectively connected with the anode of a first capacitor C1, one end of a first resistor R1 and one end of a second resistor R2, a second terminal P2 is connected with the other end of a first capacitor C1 and the other end of a first resistor R1 and then grounded, the other end of a second resistor R2 is connected with the base of a first triode Q1, the emitter of the first triode Q1 is grounded, the collector of the first triode Q1 is respectively connected with one end of a third resistor R3, one end of a second capacitor C2 and the positive input end of an operational amplifier U1, the other end of the second capacitor C2 is connected with the positive power supply of the operational amplifier U1 and then grounded, the other end of a third resistor R3 is respectively connected with one end of a third capacitor C3 and the external direct current 24V, the other end of a third capacitor C3 is grounded, the other end of the inverted operational amplifier U1 is connected with the adjustable input end of an operational amplifier RW1, one end of an adjustable resistor RW1 is connected to an external direct current 24V, the other end of the adjustable resistor RW1 is connected to the negative of the power supply of the operational amplifier U1 and then connected to the external direct current 24V, the output end of the operational amplifier U1 is connected to one end of a fourth resistor R4, the other end of the fourth resistor R4 is connected to one pole of a fourth capacitor C4 and the base of a second triode Q2, the other pole of the fourth capacitor C4 is connected to the emitter of a second triode Q2 and then grounded, the collector of the second triode Q2 is connected to the negative pole of a light emitting diode LED1, the positive pole of a second diode D2 and one end of a relay JDQ1 coil, the positive pole of the light emitting diode LED1 is connected to one end of a fifth resistor R5, the other end of the fifth resistor R5 is connected to the negative pole of a second diode D2 and the other end of the relay Q1 and then connected to the external direct current 24V, one end of a normally open contact of the relay Q1 is, The positive 24V end of the second wiring port CON2 is connected, the other end of the normally open contact of the relay JDQ1 is connected to one end of the sixth resistor R6 and the signal output end of the second wiring port CON2, respectively, and the other end of the sixth resistor R6 is connected to the ground after being connected to the ground end of the second wiring port CON 2. The third capacitor C3 and the sixth resistor R6 in the circuit are designed for the stability of the circuit.
Use the utility model discloses in the time, if the agitator motor is normal short-term stall, when the motor becomes the running state from the stall state, first triode Q1 will be recovered the saturation state by the off-state, and second electric capacity C2 will be discharged by the short circuit, and second electric capacity C2's voltage does not rise the threshold value of settlement forever like this, just can not output alarm signal, and wherein the threshold value of second electric capacity C2 both ends voltage setting is set for by adjustable resistance RW 1.
When the stirring motor stops running, the detection coil L1 does not output a voltage signal, the triode Q1 is changed from a conducting state to a cut-off state, the voltage of the external power supply 24V is charged to the second capacitor C2 through the third resistor R3, and the voltage of the capacitor C2 is gradually increased along with the time; if the stirring motor stops for too long, the voltage at the two ends of the second capacitor C2 rises to the set threshold, the operational amplifier U1 outputs a high level, the level signal is added to the base electrode of the second triode Q2 through the resistor R4, the second triode Q2 becomes a conducting state, the coil of the relay JDQ1 is attracted, and the second wiring port CON2 of the detection switch outputs 24V voltage to the external PLC; meanwhile, the second triode Q2 is switched on from cut-off, and the external power supply 24V is grounded by the fifth resistor R5, the light-emitting diode LED1 and the second triode Q2 to form a loop, so that the light-emitting diode LED1 can be lightened, a worker is reminded to monitor the current working state of the switch, and the whole detection process is completed.
Claims (3)
1. The utility model provides a positive and negative two-way agitator motor operating condition monitoring switch which characterized in that: the device comprises a detection coil, a first wiring port, a second wiring port and a main circuit, wherein the detection coil, the first wiring port, the second wiring port and the main circuit are arranged at the tail part of a stirring motor; the first wiring terminal and the second wiring terminal are connected with a second wiring port through a main body circuit, and the second wiring port is connected with an external PLC;
the main circuit comprises a rectifying and filtering circuit and a working state detection circuit which are sequentially connected.
2. The switch for monitoring the working state of the forward and reverse bidirectional stirring motor according to claim 1, characterized in that: the rectifying and filtering circuit comprises a first capacitor and a first diode, a first wiring end is connected with the anode of the first diode, the cathode of the first diode is respectively connected with the anode of the first capacitor, one end of a first resistor and one end of a second resistor, the second wiring end is connected with the other electrode of the first capacitor and the other end of the first resistor and then grounded, and the other end of the second resistor is connected with a working state detection circuit.
3. The switch for monitoring the working state of the forward and reverse bidirectional stirring motor according to claim 2, characterized in that: the working state detection circuit comprises a first triode, an operational amplifier, a second triode and a relay; the base electrode of the first triode is connected with the other end of the second resistor, the emitting electrode of the first triode is grounded, the collector electrode of the first triode is respectively connected with one end of the third resistor, one electrode of the second capacitor and the positive input end of the operational amplifier, the other electrode of the second capacitor is grounded after being connected with the positive power supply of the operational amplifier, the other electrode of the third resistor is respectively connected with one electrode of the third capacitor and the external direct current 24V, the other electrode of the third capacitor is grounded, the inverting input end of the operational amplifier is connected with the adjusting end of the adjustable resistor, one end of the adjustable resistor is connected with the external direct current 24V, the other end of the adjustable resistor is connected with the negative power supply of the operational amplifier and then is connected with the external direct current 24V, the output end of the operational amplifier is connected with one end of the fourth resistor, the other end of the fourth resistor is respectively connected with one electrode of the fourth capacitor and the base electrode of the second triode, the other electrode of the fourth capacitor, the collecting electrode of second triode respectively with emitting diode's negative pole, the positive pole of second diode, the one end of relay coil links to each other, the one end of fifth resistance is connected to emitting diode's positive pole, the other end of fifth resistance and the negative pole of second diode, the other end of relay coil links to each other and connects on external direct current 24V, the one end of relay normally open contact respectively with external direct current 24V, the positive 24V end of second wiring mouth links to each other, the other end of relay normally open contact respectively with the one end of sixth resistance, the signal output part of second wiring mouth links to each other, the other end of sixth resistance links to each other with the earthing terminal of second wiring mouth after linking to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020467873.4U CN212229112U (en) | 2020-04-02 | 2020-04-02 | Positive and negative two-way stirring motor operating condition monitoring switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020467873.4U CN212229112U (en) | 2020-04-02 | 2020-04-02 | Positive and negative two-way stirring motor operating condition monitoring switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212229112U true CN212229112U (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020467873.4U Active CN212229112U (en) | 2020-04-02 | 2020-04-02 | Positive and negative two-way stirring motor operating condition monitoring switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212229112U (en) |
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2020
- 2020-04-02 CN CN202020467873.4U patent/CN212229112U/en active Active
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