CN102868335B - Single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of motor - Google Patents
Single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of motor Download PDFInfo
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- CN102868335B CN102868335B CN201210356923.1A CN201210356923A CN102868335B CN 102868335 B CN102868335 B CN 102868335B CN 201210356923 A CN201210356923 A CN 201210356923A CN 102868335 B CN102868335 B CN 102868335B
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- backward rotation
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Abstract
The invention discloses a single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of a motor, belonging to the field of electric control. A control loop mainly includes a button switch SB1, a button switch SB2, a relay KM3, a contactor KM1, a contactor KM2, an electrifying time delay relay KT1 and an electrifying time delay relay KT2, wherein the single interlock circuit is characterized in that the elements are respectively connected in each branch circuit of each of the contact KM1 and the contactor KM2 in series through a group of normally opened and normally closed contacts in the electrifying time delay relays to form the single interlock circuit; the short circuit of a main loop of an electric motor when the control loop of the electric motor automatically converts forward rotation and reverse rotation can be effectively prevented, meanwhile, the operation time of forward rotation and reverse rotation of the electric motor can be adjusted, and the circuit is simple in structure and convenient to operate.
Description
Technical field
The present invention is that a kind of motor forward/backward rotation timing automatic conversion can run the single interlocking line controlled, and belongs to field of electrical control, according to this circuit, can be made into easy control cabinet, for controlling motor forward/backward rotation timing operation.
Background technology
Current field of electrical control, mode for controlling motor running is more, mostly consider for business, many containing computer and cost is higher, be unfavorable for execute-in-place and the maintenance of most common laborer, the application of this control overflow of rotating timing operation is continued for comparatively simple motor more, but its product is less; In university, the training content of each electric control circuit of the student of electric specialty is too single, and the knowledge student do not learned effectively, continuously, synthetically carries out consolidating and practical application expansion.
Summary of the invention
The object of the invention is to simplify motor and continue this control overflow of rotating timing operation, simplify circuit structure, be convenient to site operation personnel's understanding and also directly can maintain, keep in repair; For the application of the electric specialty Students ' Learning time relay in university in field of electrical control and expansion are offered help.
To achieve these goals, this invention takes following technical scheme:
Motor forward/backward rotation timing automatic conversion can run the single interlocking line controlled, and it comprises motor forward/backward rotation and controls major loop and motor forward/backward rotation control loop, wherein motor forward/backward rotation control loop comprises control loop power supply, push-button switch SB1 and SB2, relay K M3, contactor KM1 and KM2, the on-delay time relay KT1 and KT2, fuse FU1, thermal relay controls contact FR and connects wire accordingly, the present invention utilizes one group of on-delay time relay KT1 therein often to open, normally-closed contact, this is often opened, normally-closed contact to be serially connected in motor forward/backward rotation control loop contactor KM1 and KM2 coil respectively and to form single interlock circuit in the branch road of place separately, there is motor forward/backward rotation when preventing the rotating of motor forward/backward rotation control loop from automatically changing and control major loop short circuit, simultaneously single interlock circuit also plays the on-off action that contactor KM1 and KM2 coil switch on and off control loop power supply.
Often organizing in described on-delay time relay KT1 is often opened, normally-closed contact is held by a normally-closed contact A, a normally opened contact B holds and another C common port of side a and b corresponding contact separately forms.
In described motor forward/backward rotation control loop, control loop power supply is connected with fuse FU1, the normally closed control contact of thermal relay FR, normally closed button SB1, often opens button SB2, the coil composition control loop of relay K M3.Often open the normally opened contact KM3-2 that button SB2 is parallel with relay K M3; Normally closed knob SB1 with described, often opens button SB2, and the lines in parallel that the coil of relay K M3 connects into has four branch roads;
Article 1, branch road is connected with the coil of contactor KM1, the normally-closed contact KT1-1 of on-delay time relay KT1;
Article 2 branch road is connected with the coil of contactor KM2, the normally opened contact KT1-2 of on-delay time relay KT1;
Article 3 branch road is connected with the coil of on-delay time relay KT1, the normally-closed contact KT2-1 of on-delay time relay KT2;
Article 4 branch road is connected with the coil of on-delay time relay KT2, the normally-closed contact KM1-1 of contactor KM1;
The normally-closed contact KT1-1 of described on-delay time relay KT1 and the normally opened contact KT1-2 of on-delay time relay KT1 has common port, is connected with a common port in two common ports of described four shunt circuits;
One end in the common port of four described branch roads and be connected with the normally opened contact KM3-1 of relay K M3 between control loop;
Control in major loop at described motor forward/backward rotation, motor forward/backward rotation controls to be connected to the normally opened contact of contactor KM1 and the normally opened contact of contactor KM2 in main circuit, control being communicated with of prograde circuit and circuit for reversing respectively, control the rotating of motor; Described motor forward/backward rotation controls the thermal element, fuse FU, the three-phase power switch Q that are also in series with thermal relay FR in major loop.
In superincumbent motor forward/backward rotation control loop, described push-button switch SB1 and SB2 adopts model to be LAY3, described relay K M3 adopts model to be HH52P, described contactor KM1 and KM2 adopts model to be 3TB4017-OB, and the described on-delay time relay KT1 and KT2 adopts model to be ST3PA-B.
One of advantage of the present invention is to take full advantage of one group of normally opened contact of on-delay time relay KT1 therein and the structure of normally-closed contact, make them both play on-off action (for cutting off or connect the power supply of contactor KM1 and KM2 coil) in circuit, play again corresponding circuit interlock effect; Because circuit of the present invention constitutes single interlocking in contactor KM1 and KM2 coil branch road separately, when therefore can effectively prevent the rotating of Motor Control loop from automatically changing, Motor Control major loop is short-circuited phenomenon; Two of advantage of the present invention is that circuit structure, principle are simple, be convenient to site operation personnel's understanding also directly to maintain, keep in repair, this invention circuit only has a start button (often opening button SB2) and a stop button (normally closed button SB1), operating motor rotating startup and shut-down operation are very convenient, by regulating the timing of the on-delay time relay KT1 and KT2 respectively, motor can be adjusted respectively and rotating and reverse running time.
Accompanying drawing illustrates:
A kind of motor forward/backward rotation of Fig. 1 timing automatic conversion can run the single interlocking line block diagram controlled
Fig. 2 motor forward/backward rotation controls main loop circuit figure
One group of Fig. 3 on-delay time relay therein often open, normally-closed contact connection layout
Fig. 4 motor forward/backward rotation control loop circuit diagram
Embodiment:
Below in conjunction with accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, the present invention is described in detail.
A kind of motor forward/backward rotation timing automatic conversion can run single interlocking line block diagram of control as shown in Figure 1, motor forward/backward rotation controls main loop circuit figure as shown in Figure 2, as shown in Figure 3, motor forward/backward rotation control loop circuit diagram as shown in Figure 4 for often the opening of on-delay time relay therein one group, normally-closed contact connection layout.In FIG, timing control unit is made up of the on-delay time relay, motor forward/backward rotation control loop routine techniques means realize, it controls switching on and off of different contactor main contacts and realizes controlling Motor Control major loop prograde circuit or circuit for reversing and be switched on or switched off, and single interlock circuit is often opened by a group of on-delay time relay therein, normally-closed contact forms.Fig. 2 is that conventional motor forward/backward rotation controls main loop circuit.Fig. 3 be on-delay time relay therein one group required by the present invention should have often open, the structure of normally-closed contact, wherein side a and b maintains static, C end is common port removable, C holds or shift to A end makes A-C be communicated with (now B-C disconnects), C holds or shift to B end makes B-C be communicated with (now A-C disconnects), the situation that A-C with B-C is communicated with simultaneously will not be there is, single interlock circuit of the presently claimed invention be exactly as shown in Figure 3 one group have often open, the Structure composing of normally-closed contact.Fig. 4 is motor forward/backward rotation control loop circuit diagram, and single interlock circuit is just included among Fig. 4.A kind of motor forward/backward rotation can timing automatic conversion run control single interlocking line be made up of Fig. 2 and Fig. 4.
In the diagram, SB1 and SB2 is push-button switch, KM1 and KM2 is contactor coil, KM3 is relay coil, KT1 and KT2 is on-delay time relay coil, and FU1 is fuse, FR is the control contact of thermal relay in Fig. 2, and physical circuit connects as follows: see described in summary of the invention.
Specific works mode is as follows:
As shown in Figure 2, Figure 4 shows, assuming that motor rotates forward (reversion) during the main contacts adhesive of KM1 (KM2) contactor, before actuating motor rotating operation, first set the delay time of the time relay KT1 and KT2.A moment is slightly stopped after pressing the button SB2, then SB2 button is unclamped, close in KM3-1, KM3-2 two contacts of KM3 relay, KM3 relay coil keeps energising, contactor KM1 coil electricity, and motor starts to rotate forward power supply, KT1 coil electricity KT1 start timing, KM1-1 contact disconnects, KT2 coil blackout, KM2 coil blackout; When KT1 timing then, KT1-1 contact first disconnects, and then KT1-2 closes contact, the first power-off of KM1 coil, then contactor KM2 coil is energized, and motor starts reversion power supply after stopping rotating forward power supply, KM1-1 closes contact, KT2 coil electricity, and KT2 starts timing; When KT2 timing then, KT2-1 contact first disconnects, and KT1 coil blackout also makes KT1 reset to initial condition, KT1-2 contact first disconnects, and then KT1-1 closes contact, the first power-off of KM2 coil, then KM1 coil is energized, motor starts to rotate forward power supply after stopping reversion power supply, and KM1-1 contact disconnects, and KT2 coil blackout also makes KT2 reset to initial condition, KT2-1 closes contact, KT1 coil is energized again, and KT1 starts again timing, repeats process above; Motor constantly to carry out rotating and reverse operation according to KT1 and KT2 timing.When needs motor is out of service, slightly stops a moment after pressing the button SB1, then unclamp SB1 button.
In the diagram, KT1-1 and KT1-2 two contacts are serially connected in the respective branch road of KM1 coil and KM2 coil respectively, because the phenomenon that closes can not occur in KT1-1 and KT1-2 two contacts simultaneously, see Fig. 3, so the phenomenon be energized just can not occur for KM1 coil and KM2 coil simultaneously, therefore, the phenomenon of Motor Control major loop short circuit can not all be there is any time, thus, KT1-1 and KT1-2 two contacts are utilized can to realize using the interlocked of KM1 coil and KM2 coil electricity.
A kind of motor forward/backward rotation of the present invention timing automatic conversion can run the single interlocking line controlled, except can be used for except the conversion of motor forward/backward rotation timing automatic runs and control, also caning be passed through simple process and control for the unidirectional operation of motor.
Claims (3)
1. motor forward/backward rotation timing automatic conversion can run the single interlocking line controlled, and it is characterized in that: it comprises motor forward/backward rotation and controls major loop and motor forward/backward rotation control loop, wherein motor forward/backward rotation control loop comprises control loop power supply, push-button switch SB1 and SB2, relay K M3, contactor KM1 and KM2, the on-delay time relay KT1 and KT2, fuse FU1, thermal relay controls contact FR and connects wire accordingly, one group of on-delay time relay KT1 therein is utilized often to open, normally-closed contact, this is often opened, normally-closed contact to be serially connected in motor forward/backward rotation control loop contactor KM1 and KM2 coil respectively and to form single interlock circuit in the branch road of place separately, there is motor forward/backward rotation when preventing the rotating of motor forward/backward rotation control loop from automatically changing and control major loop short circuit, simultaneously single interlock circuit also plays the on-off action that contactor KM1 and KM2 coil switch on and off control loop power supply,
Often organizing in described on-delay time relay KT1 is often opened, normally-closed contact is held by a normally-closed contact A, a normally opened contact B holds and another C common port of side a and b corresponding contact separately forms;
In described motor forward/backward rotation control loop, control loop power supply is connected with fuse FU1, the normally closed control contact of thermal relay FR, normally closed button SB1, often open button SB2, relay K M3 coil composition control loop; Often open the normally opened contact KM3-2 that button SB2 is parallel with relay K M3; Normally closed knob SB1 with described, often opens button SB2, and the lines in parallel that the coil of relay K M3 connects into has four branch roads;
Article 1, branch road is connected with the coil of contactor KM1, the normally-closed contact KT1-1 of on-delay time relay KT1;
Article 2 branch road is connected with the coil of contactor KM2, the normally opened contact KT1-2 of on-delay time relay KT1;
Article 3 branch road is connected with the coil of on-delay time relay KT1, the normally-closed contact KT2-1 of on-delay time relay KT2;
Article 4 branch road is connected with the coil of on-delay time relay KT2, the normally-closed contact KM1-1 of contactor KM1;
The normally-closed contact KT1-1 of described on-delay time relay KT1 and the normally opened contact KT1-2 of on-delay time relay KT1 has common port, is connected with a common port in two common ports of described four shunt circuits;
One end in the common port of four described branch roads and be connected with the normally opened contact KM3-1 of relay K M3 between control loop;
Control in major loop at described motor forward/backward rotation, motor forward/backward rotation controls to be connected to the normally opened contact of contactor KM1 and the normally opened contact of contactor KM2 in main circuit, control being communicated with of prograde circuit and circuit for reversing respectively, control the rotating of motor.
2. a kind of motor forward/backward rotation according to claim 1 timing automatic conversion can run the single interlocking line controlled, and it is characterized in that: described motor forward/backward rotation controls also to be in series with in major loop thermal element, fuse FU, the three-phase power switch Q of thermal relay FR.
3. timing automatic conversion can run the single interlocking line controlled according to a kind of motor forward/backward rotation according to claim 1 or claim 2, it is characterized in that: in the motor forward/backward rotation control loop described in place, described push-button switch SB1 and SB2 adopts model to be LAY3, described relay K M3 adopts model to be HH52P, described contactor KM1 and KM2 adopts model to be 3TB4017-OB, and the described on-delay time relay KT1 and KT2 adopts model to be ST3PA-B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356923.1A CN102868335B (en) | 2012-09-21 | 2012-09-21 | Single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356923.1A CN102868335B (en) | 2012-09-21 | 2012-09-21 | Single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of motor |
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| Publication Number | Publication Date |
|---|---|
| CN102868335A CN102868335A (en) | 2013-01-09 |
| CN102868335B true CN102868335B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210356923.1A Expired - Fee Related CN102868335B (en) | 2012-09-21 | 2012-09-21 | Single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of motor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111244916B (en) * | 2020-03-08 | 2022-05-13 | 陕西航空电气有限责任公司 | Hardware interlocking method for key alternating current contactor in aviation power distribution system |
| CN112104296A (en) * | 2020-08-20 | 2020-12-18 | 浙江炬诺电器股份有限公司 | Electrode stator multifunctional controller and setting method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962095A (en) * | 2006-11-28 | 2007-05-16 | 天津市汉沽区茶西制桶厂 | Semi-automatic barrel cleaning machine |
| CN201509172U (en) * | 2009-08-24 | 2010-06-16 | 襄垣县树元电器有限公司 | Device for controlling positive and negative rotation position of motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002952743A0 (en) * | 2002-11-19 | 2002-12-05 | Waterpower Systems Pty Ltd | Electrocoagulation system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962095A (en) * | 2006-11-28 | 2007-05-16 | 天津市汉沽区茶西制桶厂 | Semi-automatic barrel cleaning machine |
| CN201509172U (en) * | 2009-08-24 | 2010-06-16 | 襄垣县树元电器有限公司 | Device for controlling positive and negative rotation position of motor |
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