CN204721272U - Three phase alternating current motor positive and negative rotating controller - Google Patents
Three phase alternating current motor positive and negative rotating controller Download PDFInfo
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- CN204721272U CN204721272U CN201520290278.7U CN201520290278U CN204721272U CN 204721272 U CN204721272 U CN 204721272U CN 201520290278 U CN201520290278 U CN 201520290278U CN 204721272 U CN204721272 U CN 204721272U
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Abstract
The utility model discloses three phase alternating current motor positive and negative rotating controller, three-phase alternating current is connected with three phase electric machine after connecting insurance circuit, the three-phase contact of contactor KM1 and the three-phase contact of contactor KM2 successively, and, thermal relay FR12, normally closed stop button STA and rotating start button circuit is connected successively between any two-phase of three-phase alternating current, described rotating start button circuit comprises button groups one and button groups two, and both are connected in parallel.This apparatus design is simple, is easy to realize, and normally can control the rotating of motor, even if still can ensure timely open circuit when wrong power phase, very practical and convenient.
Description
technical field:
The utility model relates to a kind of three phase alternating current motor foreward/rearward rotation controller, particularly relates to hurtful positive and negative rotating controller when one prevents three phase alternating current motor power phase wrong.
background technology:
At present in all kinds of manufacturing machine, AC three-phase motor (hereinafter referred to as motor) extensive use.The rotating of motor is the phase sequence realization by adjusting motor power, and new equipment, before electrokinetic tests, all can carry out after manual operation is normal.When electric operating is debugged, often there is the phenomenon of power phase wrong, motor now can be caused not rotate by predetermined direction.Because motor direction of rotation is not right, cause corresponding position switch can not to bring into normal play effect, like this when motor arrives desired location, automatically can not stop, easily causing motor rotation blockage to burn, motor output revolving shaft and its connection for transmission device misplaces or other damages phenomenon and occurs.
summary of the invention:
For this situation, the utility model provides a kind of structure simple, convenient-to-running three phase alternating current motor positive and negative rotating controller.
The technical solution of the utility model is achieved in that three phase alternating current motor positive and negative rotating controller is that one prevents the hurtful positive and negative rotating controller of three phase alternating current motor power phase mistake, comprise two contactor KM1 and KM2, a thermal relay FR, normally closed stop button STA, rotate forward start button SZA and reversion start button SFA, forward position switch XQ1 and reverse position switch XQ2, three-phase alternating current connects insurance circuit successively, the three-phase contact of contactor KM1 is connected with three phase electric machine with after the three-phase contact of contactor KM2, it is characterized in that: between any two-phase of three-phase alternating current, connect thermal relay FR12 successively, normally closed stop button STA and rotating start button circuit, described rotating start button circuit comprises button groups one and button groups two, both are connected in parallel, described button groups one comprises the first contact SZA1, the first contact XQ11 of forward position switch XQ1 of the rotating forward start button SZA be connected in series successively, the first contact ZQ21 of reverse position switch XQ2 and contactor KM1 coil, contactor KM1 normally opened contact KM11 is connected in parallel on SZA1 two ends, described contact, and the second contact SZA2 of forward start button SZA is connected in parallel on XQ21 two ends, described contact, described button groups two comprises the first contact SFA1, the second contact XQ22 of reverse position switch XQ2 of the reversion start button SFA be connected in series successively, the second contact ZQ12 of forward position switch XQ1 and contactor KM2 coil, contactor KM2 normally opened contact KM21 is connected in parallel on described normally opened contact SFA1 two ends, and the second contact SFA2 of positive and negative start button SFA is connected in parallel on XQ12 two ends, described contact.
advantage of the present utility model:this apparatus design is simple, is easy to realize, and normally can control the rotating of motor, even if still can ensure timely open circuit when wrong power phase, very practical and convenient.
accompanying drawing illustrates:
Fig. 1 be the utility model provide prevent the hurtful positive and negative rotating controller schematic diagram of three phase alternating current motor power phase mistake.
embodiment:
Below in conjunction with accompanying drawing and enforcement, the utility model is further illustrated.
Three phase alternating current motor positive and negative rotating controller is that one prevents the hurtful positive and negative rotating controller of three phase alternating current motor power phase mistake, in Fig. 1, KM1, KM2 represent contactor, FR is thermal relay, STA is stop button, and SZA is for rotating forward start button, and SFA is reversion start button, XQ1 is forward position switch, and XQ2 is reverse position switch.3. 2. 1. terminal represent three-phase alternating current 380 volts of power supplys.
As Fig. 1, three-phase alternating current is connected with three phase electric machine after connecting insurance circuit, the three-phase contact of contactor KM1 and the three-phase contact of contactor KM2 successively.And connect thermal relay FR12, normally closed stop button STA and rotating start button circuit between any two-phase of three-phase alternating current successively, described rotating start button circuit comprises button groups one and button groups two, and both are connected in parallel; Described button groups one comprises the first contact SZA1, the first contact XQ11 of forward position switch XQ1 of the rotating forward start button SZA be connected in series successively, the first contact ZQ21 of reverse position switch XQ2 and contactor KM1 coil; Contactor KM1 normally opened contact KM11 is connected in parallel on SZA1 two ends, described contact, and the second contact SZA2 of forward start button SZA is connected in parallel on XQ21 two ends, described contact; Described button groups two comprises the first contact SFA1, the second contact XQ22 of reverse position switch XQ2 of the reversion start button SFA be connected in series successively, the second contact ZQ12 of forward position switch XQ1 and contactor KM2 coil; Contactor KM2 normally opened contact KM21 is connected in parallel on described normally opened contact SFA1 two ends, and the second contact SFA2 of positive and negative start button SFA is connected in parallel on XQ12 two ends, described contact.
operating principle:
1, motor rotates forward: the utility model principle as shown in Figure 1.When needing motor to rotate forward, press SZA forward start button, make KM1 coil charged by closed FR12, STA, SZA1, XQ11, XQ21 contact, KM14 junction closure realizes self-sustaining, and the three-phase main contact KM12 of KM1 is closed makes motor forward operate.
2, motor stops: when needing motor to stop, pressing STA stop button, KM1 coil losing electricity, and KM14 disconnects and loses self-sustaining, motor stalling.
3, the spacing stopping of forward: due to operating personnel's carelessness, react too late, the malfunctioning or other reasons of stop button fails to make the timely stall of motor, when then motor moves to forward limit switch installation place, XQ11 contact disconnects and makes KM1 coil losing electricity equally, and motor shuts down.
4, the protection of wrong phase sequence: if phase sequence wrong; when pressing SZA and rotating forward button; motor is actual will reverse; if operating personnel react too late or other reasons fails to stop in time; when motor rotation is to reverse limit switch; XQ21 disconnects and makes KM1 coil losing electricity equally, and motor shuts down, and achieves the timely hold function of wrong phase sequence.
Then should disconnecting power switch in time, adjustment power phase.After reclosing power supply, because motor is at reverse restraining position, XQ21 will continue to disconnect rotating forward loop.Now press forward start button SZA, its contact SZA1 and SZA2 connects simultaneously, and SZA2 is short circuit XQ21 contact in short-term, and after making motor rotate forward the reverse restraining position of disengaging, motor recovers normal operation.
5, motor reversal controls: when needing motor reversal, press SFA reverse starting button, make KM2 coil charged by closed FR12, STA, SFA1, XQ21, XQ12 contact, KM24 junction closure realizes self-sustaining, and the three-phase main contact KM22 of KM2 is closed makes motor antiport.It is the same when during reversion, other principle operates with forward.
Claims (1)
1. three phase alternating current motor positive and negative rotating controller, comprise two contactor KM1 and KM2, a thermal relay FR, normally closed stop button STA, rotate forward start button SZA and reversion start button SFA, forward position switch XQ1 and reverse position switch XQ2, three-phase alternating current connects insurance circuit successively, the three-phase contact of contactor KM1 is connected with three phase electric machine with after the three-phase contact of contactor KM2, it is characterized in that: between any two-phase of three-phase alternating current, connect thermal relay FR12 successively, normally closed stop button STA and rotating start button circuit, described rotating start button circuit comprises button groups one and button groups two, both are connected in parallel, described button groups one comprises the first contact SZA1, the first contact XQ11 of forward position switch XQ1 of the rotating forward start button SZA be connected in series successively, the first contact ZQ21 of reverse position switch XQ2 and contactor KM1 coil, contactor KM1 normally opened contact KM11 is connected in parallel on SZA1 two ends, described contact, and the second contact SZA2 of forward start button SZA is connected in parallel on XQ21 two ends, described contact, described button groups two comprises the first contact SFA1, the second contact XQ22 of reverse position switch XQ2 of the reversion start button SFA be connected in series successively, the second contact ZQ12 of forward position switch XQ1 and contactor KM2 coil, contactor KM2 normally opened contact KM21 is connected in parallel on described normally opened contact SFA1 two ends, and the second contact SFA2 of positive and negative start button SFA is connected in parallel on XQ12 two ends, described contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290278.7U CN204721272U (en) | 2015-05-07 | 2015-05-07 | Three phase alternating current motor positive and negative rotating controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290278.7U CN204721272U (en) | 2015-05-07 | 2015-05-07 | Three phase alternating current motor positive and negative rotating controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204721272U true CN204721272U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520290278.7U Expired - Fee Related CN204721272U (en) | 2015-05-07 | 2015-05-07 | Three phase alternating current motor positive and negative rotating controller |
Country Status (1)
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| CN (1) | CN204721272U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230332A (en) * | 2016-08-12 | 2016-12-14 | 柳州鹏达科技有限责任公司 | DC motor positive and negative rotation control method |
| CN106301110A (en) * | 2016-08-12 | 2017-01-04 | 柳州鹏达科技有限责任公司 | DC motor positive and negative rotation controls device |
| CN106301111A (en) * | 2016-08-12 | 2017-01-04 | 柳州鹏达科技有限责任公司 | DC motor positive and negative rotation controls circuit |
| CN113279949A (en) * | 2021-06-30 | 2021-08-20 | 吉林油田多源实业集团有限责任公司 | Reverse-thrust starting control device of oil pumping unit |
| CN115276475A (en) * | 2022-08-10 | 2022-11-01 | 华能(广东)能源开发有限公司汕头电厂 | Motor forward and reverse rotation double interlocking device |
-
2015
- 2015-05-07 CN CN201520290278.7U patent/CN204721272U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230332A (en) * | 2016-08-12 | 2016-12-14 | 柳州鹏达科技有限责任公司 | DC motor positive and negative rotation control method |
| CN106301110A (en) * | 2016-08-12 | 2017-01-04 | 柳州鹏达科技有限责任公司 | DC motor positive and negative rotation controls device |
| CN106301111A (en) * | 2016-08-12 | 2017-01-04 | 柳州鹏达科技有限责任公司 | DC motor positive and negative rotation controls circuit |
| CN113279949A (en) * | 2021-06-30 | 2021-08-20 | 吉林油田多源实业集团有限责任公司 | Reverse-thrust starting control device of oil pumping unit |
| CN115276475A (en) * | 2022-08-10 | 2022-11-01 | 华能(广东)能源开发有限公司汕头电厂 | Motor forward and reverse rotation double interlocking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |