CN101726703A - Single-phase motor centrifugal switch tester - Google Patents
Single-phase motor centrifugal switch tester Download PDFInfo
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- CN101726703A CN101726703A CN200910155083A CN200910155083A CN101726703A CN 101726703 A CN101726703 A CN 101726703A CN 200910155083 A CN200910155083 A CN 200910155083A CN 200910155083 A CN200910155083 A CN 200910155083A CN 101726703 A CN101726703 A CN 101726703A
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Abstract
The invention relates to a single-phase motor centrifugal switch tester which comprises an outer casing, a detecting circuit, an exterior power supply interface, a centrifugal switch inserting point and a rotation speed display, wherein the exterior power supply interface is simultaneously connected with a reducing transformer, a converter, the rotation speed display and a controlled sub circuit. The low-voltage output end of the reducing transformer is connected with the input end of a sorting circuit, the output end of the sorting circuit is connected with the centrifugal switch, and the centrifugal switch is connected in series with a switch detecting relay. The converter is connected with a variable-frequency motor through a motor starting switch. The variable-frequency motor is provided with a speed-testing sensor, and the speed-testing sensor is connected with the rotation speed display. The controlled sub circuit comprises a switch detecting normally open contact, a control push button and a motor starting relay which are sequentially connected in series. The switch detecting normally open contact is linked with the switch detecting relay, and the motor starting switch is linked with the motor starting relay. The invention can effectively detect the starting rotation speed of the centrifugal switch when in disconnection.
Description
Technical field
The present invention relates to a kind of monophase machine tester.
Background technology
In the motor production field, monophase machine performance and production technology are all improving and progress, especially external client is more and more higher to the performance requirement of monophase machine, with domestic traditional common monophase machine a lot of different places is arranged, and for example the domestic 220V/380V of the being frequency of supply voltage is 50HZ.Abroad be multivoltage the 110V/230V/460V/575V frequency is arranged is 60HZ. and also be powerful monophase machine (maximum 7.5KW), multivoltage, band temperature protector, have overcurrent protective device etc.Because voltage and frequency are with domestic different, the particularly centrifugal switch of powerful monophase machine and centrifugal switch plate, the startup rotating speed of sedimentator is low excessively, the detent torque that has influence on motor is not enough, the startup rotating speed of sedimentator is too high, the long meeting start-up time of motor causes burns startup electric capacity, and the startup rotating speed cut-off point of sedimentator seems and is even more important.Testing apparatus that present domestic detection monophase machine is used and instrument can not adapt to the detection demand of these New-type electric machines, and detection means also can't satisfy the needs of production development.
Summary of the invention
The deficiency of the startup rotating speed when overcoming can not the detecting centrifugal switch and disconnect of existing monophase machine tester the invention provides a kind of single-phase motor centrifugal switch tester of the startup rotating speed can effectively detect centrifugal switch and disconnect the time.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of single-phase motor centrifugal switch tester, comprise shell, testing circuit, the external power source interface, centrifugal switch is inserted node and rotating speed display, described external power source interface, centrifugal switch is inserted node and the rotating speed display all is positioned at case surface, described testing circuit is positioned at shell, described testing circuit comprises step-down transformer, rectification circuit, switch detects relay, frequency converter, variable-frequency motor, tachogenerator and controlled electronic circuit, described external power source interface connects step-down transformer simultaneously, frequency converter, rotating speed display and controlled electronic circuit, the low-voltage output of described step-down voltage device is connected with the input end of finishing circuit, the output terminal of described finishing circuit is connected with centrifugal switch, and described centrifugal switch detects relay with switch and connects; Described frequency converter is connected with described variable-frequency motor by motor start switch, on the described variable-frequency motor tachogenerator is installed, and described tachogenerator is connected with described rotating speed display; Described controlled electronic circuit comprises that switch detects normally opened contact, control knob and electric motor starting relay, and described switch detects normally opened contact, control knob and the series connection of electric motor starting relay; Described switch detects normally opened contact and described switch detects the relay interlock, described motor start switch and the interlock of described electric motor starting relay.
Further, described centrifugal switch is inserted node to be had more than two at least, described variable-frequency motor has more than two at least, described controlled electronic circuit has more than two at least, described centrifugal switch is inserted the quantity of node, the quantity of described variable-frequency motor equates with the quantity of controlled electronic circuit, the slotting node of each centrifugal switch all with the output terminal that is connected finishing circuit after switch detection relay is connected separately.
Further again, described control knob is an inching button, and described inching button is in parallel with the electric motor starting self-holding contact, described electric motor starting self-holding contact and the interlock of described electric motor starting relay.
Further, described centrifugal switch tester also comprises the electronic type counter, described electronic type counter is connected with described external power source interface, described electronic type counter comprises counting relay, described counting relay detects additional normally opened contact with switch and connects, described controlled electronic circuit also comprises the counting normally opened contact, described counting normally opened contact and switch detect normally opened contact, control knob and the series connection of electric motor starting relay, described switch detects additional normally opened contact and described switch detects the relay interlock, described counting normally opened contact and counting relay interlock, the counting unit of described electronic counter is connected with described motor start switch.
Described external power source interface connects power switch, and described power switch is connected with fuse, and described external power source interface is connected with power light; Described electric motor starting relay is in parallel with the electric machine operation state pilot lamp.
Technical conceive of the present invention is: adopt the power supply of 220V AC power as this tester, our company adopts ED3000-4T0007M high performance universal frequency converter; XJP-02B rotating speed digital indicator and photoelectric sensor, 0.75KW variable-frequency motor, BL9-4 type electronic counter relay.Carry out combine and assemble and form a centrifugal switch and the centrifugal switch board device that can test various models, the contemplates of motor centrifugal switch tester is with the making apparatus of way of realization.
Its function that has is as follows: one: the tripping characteristic in the time of can detecting the disconnection of sedimentator and centrifugal switch plate.Its two: can detect sedimentator and centrifugal switch plate serviceable life.Its three: the breaking speed that can detect sedimentator and centrifugal switch plate.Its four: can detect the optimum distance between sedimentator and the centrifugal switch plate, reach the running status of motor the best.
Beneficial effect of the present invention mainly shows: the startup rotating speed in the time of can effectively detecting the centrifugal switch disconnection.
Description of drawings
Fig. 1 is the outside synoptic diagram of single-phase motor centrifugal switch tester.
Fig. 2 is the circuit diagram of single-phase motor centrifugal switch tester.
Fig. 3 is the wiring diagram of tachogenerator and XJP-2B numeral rotating speed display.
Fig. 4 is the wiring diagram of BL9-4 type electronic counter relay.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1～Fig. 2, a kind of single-phase motor centrifugal switch tester, comprise shell, testing circuit, the external power source interface, centrifugal switch is inserted node and rotating speed display, described external power source interface, centrifugal switch is inserted node and the rotating speed display all is positioned at case surface, described testing circuit is positioned at shell, described testing circuit comprises step-down transformer, rectification circuit, switch detects relay, frequency converter, variable-frequency motor, tachogenerator and controlled electronic circuit, described external power source interface connects step-down transformer simultaneously, frequency converter, rotating speed display and controlled electronic circuit, the low-voltage output of described step-down voltage device is connected with the input end of finishing circuit, the output terminal of described finishing circuit is connected with centrifugal switch, and described centrifugal switch detects relay with switch and connects; Described frequency converter is connected with described variable-frequency motor by motor start switch, on the described variable-frequency motor tachogenerator is installed, and described tachogenerator is connected with described rotating speed display; Described controlled electronic circuit comprises that switch detects normally opened contact, control knob and electric motor starting relay, and described switch detects normally opened contact, control knob and the series connection of electric motor starting relay; Described switch detects normally opened contact and described switch detects the relay interlock, described motor start switch and the interlock of described electric motor starting relay.
Described centrifugal switch is inserted node to be had more than two at least, described variable-frequency motor has more than two at least, described controlled electronic circuit has more than two at least, described centrifugal switch is inserted the quantity of node, the quantity of described variable-frequency motor equates with the quantity of controlled electronic circuit, the slotting node of each centrifugal switch all with the output terminal that is connected finishing circuit after switch detection relay is connected separately.
Described control knob is an inching button, and described inching button is in parallel with the electric motor starting self-holding contact, described electric motor starting self-holding contact and the interlock of described electric motor starting relay.
Described centrifugal switch tester also comprises the electronic type counter, described electronic type counter is connected with described external power source interface, described electronic type counter comprises counting relay, described counting relay detects additional normally opened contact with switch and connects, described controlled electronic circuit also comprises the counting normally opened contact, described counting normally opened contact and switch detect normally opened contact, control knob and the series connection of electric motor starting relay, described switch detects additional normally opened contact and described switch detects the relay interlock, described counting normally opened contact and counting relay interlock, the counting unit of described electronic counter is connected with described motor start switch.
Described external power source interface connects power switch, and described power switch is connected with fuse, and described external power source interface is connected with power light; Described electric motor starting relay is in parallel with the electric machine operation state pilot lamp.Described tachogenerator adopts photoelectric sensor
With reference to accompanying drawing 2, the course of work of present embodiment is: adopt alternating current 220V as power supply, battery main switch QS1 is set, again by FU1, FU2 is provided with in order to show the power light of general supply opening as the overcurrent protection fuse of operation circuit.SB5 is as the emergency stop push button of operation circuit.
PL1-PL4 is that BL9-4 type electronic counter relay is as the number of elements that detects sedimentator accumulative total.
Work indication (HLI2-HLI5) when the output of BK-50 step-down transformer is worked as variable-frequency motor.
SB1 is the start button of M1 variable-frequency motor, and SB2 is the start button of M2 variable-frequency motor, and SB3 is the start button of M3 variable-frequency motor, and SB4 is the start button of M4 variable-frequency motor, and above-mentioned start button all adopts inching button.
The 12V alternating voltage of BK-50 step-down transformer output is by the rectification of D1-D4 rectifier bridge heap, the output of rectification circuit is connected centrifugal switch and switch and detects on the series circuit of 12V coil of relay K A1, when sedimentator is pressed on the centrifugal switch plate, then the switch of centrifugal switch makes switch detect the coil electricity adhesive of relay K A1 with regard to conducting.When pressing then motor start switch KM1 adhesive of inching button SB1, variable-frequency motor M1 entry into service, at this moment, tachogenerator begins to test the speed, and XJP-02B rotating speed digital indicator begins to show the rotating speed of per minute kind.When sedimentator reaches certain rotating speed, sedimentator begins to takeoff, and this moment, the centrifugal switch plate disconnected, be that centrifugal switch disconnects, switch detects the also dead electricity disconnection simultaneously of coil of relay K A1, and electric motor starting relay K M1 dead electricity disconnects, appliance starting K switch M1 disconnects, and variable-frequency motor M1 then quits work.The final rotating speed that shows of XJP-02B rotating speed digital indicator can keep several seconds.Finish testing.
The centrifugal switch that the monophase machine of multiple different model can be set is inserted node, example as shown in Figure 24 in, at every kind of different model, different variable-frequency motors, tachogenerator, controlled electronic circuit etc. are set respectively; Can be applicable to the detection of centrifugal switch of the monophase machine of various different models.
Because frequency converter has the electronics heat protection function, in the middle of connecting frequency converter, the variable-frequency motor of present embodiment saved the installation of electrothermal relay as protection.
BL1-BL4 is the amount detection that BL9-4 type electronic counter relay detects centrifugal switch, after general supply QS1 opens, when the centrifugal switch closure, after the coil of switch detection relay powers on, BL9-4 type electronic counter relay is with regard to energising work, this moment BL1-BL4 electronic counter relay the inside relay with regard to adhesive, the normally opened contact closure of BL1-BL4; Whenever the centrifugal switch closure once, counting relay also adhesive once can be counted accordingly; (detect 5000 thus much the time, the normally opened contact disconnection of BL1-BL4 when sedimentator when for example being set to 5000 when setting BL9-4 type electronic counter relay.At this moment just can't start variable-frequency motor by SB1-SB4).Four counting relays that show in the accompanying drawing 2 are adapted to the centrifugal switch of the monophase machine of four kinds of unlike signals respectively.
Photoelectric sensor, electro-optical pickoff has characteristics such as noncontact, response are fast, dependable performance, it is that realization rotating speed of motor in the photodetector system is passed through opto-electronic conversion that this equipment adopts photoelectric sensor, exactly its non-electrical parameter is converted to the electrical measurement parameter, by XJP-02B rotating speed digital indicator, show the motor speed of the frequency conversion of this equipment again.
Claims (6)
1. single-phase motor centrifugal switch tester, it is characterized in that: described centrifugal switch tester comprises shell, testing circuit, the external power source interface, centrifugal switch is inserted node and rotating speed display, described external power source interface, centrifugal switch is inserted node and the rotating speed display all is positioned at case surface, described testing circuit is positioned at shell, described testing circuit comprises step-down transformer, rectification circuit, switch detects relay, frequency converter, variable-frequency motor, tachogenerator and controlled electronic circuit, described external power source interface connects step-down transformer simultaneously, frequency converter, rotating speed display and controlled electronic circuit, the low-voltage output of described step-down voltage device is connected with the input end of finishing circuit, the output terminal of described finishing circuit is connected with centrifugal switch, and described centrifugal switch detects relay with switch and connects; Described frequency converter is connected with described variable-frequency motor by motor start switch, on the described variable-frequency motor tachogenerator is installed, and described tachogenerator is connected with described rotating speed display; Described controlled electronic circuit comprises that switch detects normally opened contact, control knob and electric motor starting relay, and described switch detects normally opened contact, control knob and the series connection of electric motor starting relay; Described switch detects normally opened contact and described switch detects the relay interlock, described motor start switch and the interlock of described electric motor starting relay.
2. single-phase motor centrifugal switch tester as claimed in claim 1, it is characterized in that: described centrifugal switch is inserted node to be had more than two at least, described variable-frequency motor has more than two at least, described controlled electronic circuit has more than two at least, described centrifugal switch is inserted the quantity of node, the quantity of described variable-frequency motor equates with the quantity of controlled electronic circuit, the slotting node of each centrifugal switch all with the output terminal that is connected finishing circuit after switch detection relay is connected separately.
3. single-phase motor centrifugal switch tester as claimed in claim 1 or 2, it is characterized in that: described control knob is an inching button, described inching button is in parallel with the electric motor starting self-holding contact, described electric motor starting self-holding contact and the interlock of described electric motor starting relay.
4. single-phase motor centrifugal switch tester as claimed in claim 1 or 2, it is characterized in that: described centrifugal switch tester also comprises the electronic type counter, described electronic type counter is connected with described external power source interface, described electronic type counter comprises counting relay, described counting relay detects additional normally opened contact with switch and connects, described controlled electronic circuit also comprises the counting normally opened contact, described counting normally opened contact and switch detect normally opened contact, control knob and the series connection of electric motor starting relay, described switch detects additional normally opened contact and described switch detects the relay interlock, described counting normally opened contact and counting relay interlock, the counting unit of described electronic counter is connected with described motor start switch.
5. single-phase motor centrifugal switch tester as claimed in claim 4, it is characterized in that: described centrifugal switch tester also comprises the electronic type counter, described electronic type counter is connected with described external power source interface, described electronic type counter comprises counting relay, described counting relay detects additional normally opened contact with switch and connects, described controlled electronic circuit also comprises the counting normally opened contact, described counting normally opened contact and switch detect normally opened contact, control knob and the series connection of electric motor starting relay, described switch detects additional normally opened contact and described switch detects the relay interlock, described counting normally opened contact and counting relay interlock, the counting unit of described electronic counter is connected with described motor start switch.
6. single-phase motor centrifugal switch tester as claimed in claim 5 is characterized in that: described external power source interface connects power switch, and described power switch is connected with fuse, and described external power source interface is connected with power light; Described electric motor starting relay is in parallel with the electric machine operation state pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101550830A CN101726703B (en) | 2009-12-17 | 2009-12-17 | Single-phase motor centrifugal switch tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101550830A CN101726703B (en) | 2009-12-17 | 2009-12-17 | Single-phase motor centrifugal switch tester |
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| CN101726703A true CN101726703A (en) | 2010-06-09 |
| CN101726703B CN101726703B (en) | 2012-05-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102116776A (en) * | 2011-01-18 | 2011-07-06 | 金米友 | Intelligent centrifugal switch turn-off rotation speed tester |
| CN102347724A (en) * | 2010-07-30 | 2012-02-08 | 国网运行有限公司上海超高压管理处 | Motor control system with pressure motion counter |
| CN103163458A (en) * | 2011-12-19 | 2013-06-19 | 海洋王照明科技股份有限公司 | Rotary switch testing control circuit and testing tool |
| CN103513193A (en) * | 2012-06-27 | 2014-01-15 | 海洋王（东莞）照明科技有限公司 | Switch impact test circuit |
| CN105137115A (en) * | 2014-05-29 | 2015-12-09 | 浙江和超电机有限公司 | Single-phase asynchronous motor centrifugal switch contact breaking rotation speed tester |
| CN106338686A (en) * | 2016-08-15 | 2017-01-18 | 惠而浦（中国）股份有限公司 | Motor centrifugal switch durability test device and test method |
| CN108153179A (en) * | 2016-12-05 | 2018-06-12 | 中核兰州铀浓缩有限公司 | Centrifuge uranium enrichment Frequency Measurement System control unit |
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| US5652526A (en) * | 1996-03-15 | 1997-07-29 | Southern California Edison Company | Electric motor analyzer |
| RU2300117C1 (en) * | 2005-12-30 | 2007-05-27 | Муниципальное предприятие города Самары "Самарский метрополитен" | Testing station for propulsion electric engines |
| CN101191820A (en) * | 2006-11-29 | 2008-06-04 | 上海乐开测控设备有限公司 | Electrodynamic train switch push button , electric relay, circuit breakers monitoring device and method |
| CN201163294Y (en) * | 2007-05-14 | 2008-12-10 | 郭将 | Overloading prompter of single-phase motor with centrifugal switch |
| CN201051134Y (en) * | 2007-06-20 | 2008-04-23 | 乐山市产品质量监督检验所 | Acentric switch break rotation speed detector |
| CN201118494Y (en) * | 2007-08-29 | 2008-09-17 | 傅国富 | Single-phase electromotor circuit with start and overload indication function |
| CN201589852U (en) * | 2009-12-17 | 2010-09-22 | 慈溪威力电机制造有限公司 | Single-phase motor centrifugal switch tester |
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- 2009-12-17 CN CN2009101550830A patent/CN101726703B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102347724A (en) * | 2010-07-30 | 2012-02-08 | 国网运行有限公司上海超高压管理处 | Motor control system with pressure motion counter |
| CN102116776A (en) * | 2011-01-18 | 2011-07-06 | 金米友 | Intelligent centrifugal switch turn-off rotation speed tester |
| CN102116776B (en) * | 2011-01-18 | 2012-09-19 | 金米友 | Intelligent centrifugal switch turn-off rotation speed tester |
| CN103163458A (en) * | 2011-12-19 | 2013-06-19 | 海洋王照明科技股份有限公司 | Rotary switch testing control circuit and testing tool |
| CN103513193A (en) * | 2012-06-27 | 2014-01-15 | 海洋王（东莞）照明科技有限公司 | Switch impact test circuit |
| CN105137115A (en) * | 2014-05-29 | 2015-12-09 | 浙江和超电机有限公司 | Single-phase asynchronous motor centrifugal switch contact breaking rotation speed tester |
| CN106338686A (en) * | 2016-08-15 | 2017-01-18 | 惠而浦（中国）股份有限公司 | Motor centrifugal switch durability test device and test method |
| CN108153179A (en) * | 2016-12-05 | 2018-06-12 | 中核兰州铀浓缩有限公司 | Centrifuge uranium enrichment Frequency Measurement System control unit |
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| CN101726703B (en) | 2012-05-30 |
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