CN102868334B - Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor - Google Patents
Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor Download PDFInfo
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- CN102868334B CN102868334B CN201210356317.XA CN201210356317A CN102868334B CN 102868334 B CN102868334 B CN 102868334B CN 201210356317 A CN201210356317 A CN 201210356317A CN 102868334 B CN102868334 B CN 102868334B
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Abstract
The invention relates to an automatic timing alternative positive and reverse rotation dual-interlocking control line for a motor and belongs to the field of electrical control. A control loop mainly comprises a button switch SB1, a button switch SB2, a relay KM3, a contactor KM1, a contactor KM2, an electrification delay time relay KT1 and an electrification delay time relay KT2. Intrinsic normally open contacts and normally closed contacts in the electrification delay time relays and respective auxiliary normally closed contacts of the contactor KM1 and the contactor KM2 are combined and then respectively serially connected into respective branches of coils of the contactor KM1 and the contactor KM2 to form a dual-interlocking circuit. Short circuit of a main control loop of the motor during operation and automatic switching of positive and reverse rotation of the control loop of the motor can be effectively prevented, and positive and reverse rotation time of the motor is adjustable. In addition, the circuit structure is simple and operation is convenient.
Description
Technical field
The present invention is that a kind of motor timing automatic replaces rotating double interlocking control circuit, belongs to field of electrical control, according to this circuit, can be made into easy control cabinet, runs for controlling the conversion of motor forward/backward rotation timing automatic.
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:
A kind of motor timing automatic replaces rotating double interlocking control circuit, 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, , by often opening of on-delay time relay KT1, normally-closed contact to be serially connected in motor forward/backward rotation control loop contactor KM1 and KM2 coil again and to form double interlocking circuit in branch road separately after being connected in series with contactor KM1 and KM2 auxiliary normally-closed contact separately respectively, prevent motor forward/backward rotation control loop when rotating is changed automatically and the short circuit of run duration generation motor forward/backward rotation control major loop, simultaneously double interlocking circuit also plays the on-off action that contactor KM1 and KM2 coil switch on and off control loop power supply.
Often organizing in the described on-delay time relay KT1 and KT2 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 KM2-1 of contactor KM2, the normally-closed contact of on-delay time relay KT1;
Article 2 branch road is connected with the coil of contactor KM2, the normally-closed contact KM1-1 of contactor KM1, the normally opened contact 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 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 KM1-2 of contactor KM1;
The normally-closed contact KT1 of described on-delay time relay KT1 and the normally opened contact of on-delay time relay KT1 have common port, are 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 described at described motor forward/backward rotation, the normally opened contact of contactor KM1 and the normally opened contact of contactor KM2 is connected in motor forward/backward rotation control 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 in series with thermal relay FR in major loop.
In described 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.
The combination that 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 design feature of normally-closed contact and is connected in series with the auxiliary normally-closed contact of contactor KM1 and KM2, make them both play on-off action (for cutting off or connect the power supply of KM1 and KM2 coil) in circuit, play again corresponding circuit interlock effect; Because circuit of the present invention constitutes double interlock in the respective branch road of KM1 and KM2 coil, when therefore can effectively prevent the rotating of Motor Control loop from automatically changing and the phenomenon that is short-circuited of run duration Motor Control major loop; 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 two 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 timing automatic of Fig. 1 replaces rotating double interlocking control circuit block diagram
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 timing automatic replaces rotating double interlocking control circuit block diagram 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 KT1 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 double interlocking circuit is often opened by a group of on-delay time relay therein, normally-closed contact is connected in series with the auxiliary normally-closed contact of contactor KM1 and KM2 respectively and forms.Fig. 2 is that conventional motor forward/backward rotation controls main loop circuit.Fig. 3 be on-delay time relay KT1 therein one group required by the present invention have often open, the structure of normally-closed contact, wherein side a and b maintains static, C end is that common port is 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, double interlocking circuit of the presently claimed invention be exactly as shown in Figure 3 one group have often open, the structure of normally-closed contact is connected in series with the auxiliary normally-closed contact of contactor KM1 and KM2 and forms.Fig. 4 is motor forward/backward rotation control loop circuit diagram, and double interlocking circuit is just included among Fig. 4.A kind of motor timing automatic replaces rotating double interlocking control circuit and is 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, KM3-1, KM3-2 two normally opened contacts of KM3 relay close, 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 and KM1-2 two normally-closed contacts disconnect, KT2 coil blackout, KM2 coil blackout; When KT1 timing then, KT1 normally-closed contact first disconnects, then KT1 normally opened contact closes, the first power-off of contactor KM1 coil, then KM1-1 and KM1-2 two normally-closed contacts close, then KM2 coil electricity, then KM2-1 normally-closed contact disconnects, motor starts reversion power supply after stopping rotating forward power supply, KT2 coil electricity, and KT2 starts timing; When KT2 timing then, KT2 normally-closed contact disconnects, KT1 coil blackout also makes KT1 reset to initial condition, KT1 normally opened contact first disconnects, then KT1 normally-closed contact closes, the first power-off of KM2 coil, KM2-1 normally-closed contact closes, then KM1 coil electricity, KM1-1 and KM1-2 normally-closed contact disconnects, motor starts to rotate forward power supply after stopping reversion power supply, KT2 coil blackout also makes KT2 reset to initial condition, and KT2 normally-closed contact closes, and KT1 coil is energized again, 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 normally-closed contact is serially connected in KM1 path of winding, KT1 normally opened contact is serially connected in KM2 path of winding, because the phenomenon that closes all can not occur for the normally-closed contact of KT1 and normally opened contact simultaneously, see Fig. 3, so just can not there is the phenomenon be energized in KM1 coil and KM2 coil simultaneously, thus KM1-1 and KM2-1 two normally-closed contacts just can not close simultaneously, therefore, just can not there is the phenomenon of Motor Control major loop short circuit, so, utilize often opening of KT1, normally-closed contact and KM1-1 and KM2-1 two normally-closed contacts just can realize the double interlocking effect to KM1 coil and KM2 coil electricity.
A kind of motor timing automatic of the present invention replaces rotating double interlocking control circuit, and run except control except can be used for the conversion of motor forward/backward rotation timing automatic, the unidirectional operation that also can be used for motor through simple process controls.
Claims (3)
1. motor timing automatic replaces a rotating double interlocking control circuit, 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, by often opening of on-delay time relay KT1, normally-closed contact to be serially connected in motor forward/backward rotation control loop contactor KM1 and KM2 coil again and to form double interlocking circuit in branch road separately after being connected in series with contactor KM1 and KM2 auxiliary normally-closed contact separately respectively, prevent motor forward/backward rotation control loop when rotating is changed automatically and the short circuit of run duration generation motor forward/backward rotation control major loop, simultaneously double interlocking circuit also plays the on-off action that contactor KM1 and KM2 coil switch on and off control loop power supply,
Often organizing in the described on-delay time relay KT1 and KT2 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 KM2-1 of contactor KM2, the normally-closed contact of on-delay time relay KT1;
Article 2 branch road is connected with the coil of contactor KM2, the normally-closed contact KM1-1 of contactor KM1, the normally opened contact 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 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 KM1-2 of contactor KM1;
The normally-closed contact KT1 of described on-delay time relay KT1 and the normally opened contact of on-delay time relay KT1 have common port, are 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 timing automatic according to claim 1 replaces rotating double interlocking control circuit, it is characterized in that: described motor forward/backward rotation controls the thermal element, fuse FU, the three-phase power switch Q that are in series with thermal relay FR in major loop.
3. replace rotating double interlocking control circuit according to a kind of motor timing automatic according to claim 1 or claim 2, it is characterized in that: in described 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356317.XA CN102868334B (en) | 2012-09-21 | 2012-09-21 | Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356317.XA CN102868334B (en) | 2012-09-21 | 2012-09-21 | Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor |
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| Publication Number | Publication Date |
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| CN102868334A CN102868334A (en) | 2013-01-09 |
| CN102868334B true CN102868334B (en) | 2015-07-08 |
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| CN201210356317.XA Expired - Fee Related CN102868334B (en) | 2012-09-21 | 2012-09-21 | Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103376758B (en) * | 2013-07-15 | 2015-09-02 | 福开尔（西安）电气有限公司 | A kind of latching relay that adopts realizes two main disconnected automatic alternate run circuit |
| CN106873424B (en) * | 2017-04-27 | 2023-09-01 | 上海市农业机械鉴定推广站 | Portable brush cutter analogue test platform controlling means |
| CN108490869A (en) * | 2018-05-21 | 2018-09-04 | 深圳职业技术学院 | A kind of intelligent management system of practical teaching |
| CN109026755A (en) * | 2018-09-17 | 2018-12-18 | 江苏大学镇江流体工程装备技术研究院 | A kind of proof submersible sand discharging pump anti-clogging anti-wrap device |
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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| CN102868334A (en) | 2013-01-09 |
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Granted publication date: 20150708 Termination date: 20170921 |