CN104065321A - Electromagnetic speed adjusting three-phase asynchronous motor - Google Patents
Electromagnetic speed adjusting three-phase asynchronous motor Download PDFInfo
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- CN104065321A CN104065321A CN201410332622.4A CN201410332622A CN104065321A CN 104065321 A CN104065321 A CN 104065321A CN 201410332622 A CN201410332622 A CN 201410332622A CN 104065321 A CN104065321 A CN 104065321A
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- speed
- threephase asynchronous
- electromagnetic
- setting controller
- speed setting
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses an electromagnetic speed adjusting three-phase asynchronous motor. The electromagnetic speed adjusting three-phase asynchronous motor comprises a three-phase asynchronous motor body, an electromagnetic slip clutch and a speed adjusting controller, wherein the three-phase asynchronous motor body is connected with the electromagnetic slip clutch; the electromagnetic slip clutch is provided with the speed adjusting controller; the three-phase asynchronous motor body is supplied with power through an AC380V three-phase asynchronous motor power source; the speed adjusting controller is supplied with power through an AC220V speed adjusting controller power source. A clutch coil can be protected, and leakage accidents and electric shock accidents are effectively prevented.
Description
Technical field
The present invention relates to a kind of electromagnetic adjustable speed motor, be specifically related to a kind of electromagnetic speed-adjusting threephase asynchronous machine.
Background technology
Electromagnetic adjustable speed motor is again slip regulating speed motor, also claims electromagnetic clutch.Electromagnetic adjustable speed motor has two axles, one of them axle is connected with prime mover, another axle is connected with drag object, and by regulating the voltage of electromagnetic adjustable speed motor to make output speed lower than input speed, its operation principle is to regulate the revolutional slip of electromagnetic adjustable speed motor to change output speed.
Electromagnetic adjustable speed motor is to rely on speed setting controller to regulate the rotating speed of its output shaft.Two power supplys of the general employing of existing electromagnetic adjustable speed motor, a 380V power supply is used to motor power supply, and another 220V power supply is used to speed setting controller power supply.User in use, when not using equipment, only the power supply of motor is disconnected, and the power supply of speed setting controller is not disconnected, this can cause after motor power-off, and the armature being connected with motor output shaft stops operating, and clutch coil is still in rotation, the voltage on clutch coil can raise, and the electric current in coil strengthens, and speed setting controller is in this abnormal operating state, long-play can burn out magnetic coil, causes speed setting controller cisco unity malfunction.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of electromagnetic speed-adjusting threephase asynchronous machine, and it can realize the stepless speed regulation of motor.
For solving the problems of the technologies described above, the technical solution of electromagnetic speed-adjusting threephase asynchronous machine of the present invention is:
Comprise threephase asynchronous 1, electromagnetic slip clutches 2, speed setting controller 4, threephase asynchronous 1 connects electromagnetic slip clutches 2, and electromagnetic slip clutches 2 arrange speed setting controller 4; Threephase asynchronous 1 is by AC380V threephase asynchronous machine Power supply; Speed setting controller 4 is by AC220V speed setting controller Power supply; Electromagnetic slip clutches 2 comprise armature 21, claw-type pole 22, and threephase asynchronous 1 connects armature 21, and claw-type pole 22 connects output shaft; On claw-type pole 22, be arranged with magnet exciting coil 23; Between armature 21 and claw-type pole 22, form working gas gap, armature 21 and claw-type pole 22 be independent rotation separately; When threephase asynchronous 1 drives armature 21 rotations, when magnet exciting coil 23 passes into direct current, claw-type pole 22 can drive output shaft rotation; The rotating speed of output shaft is measured by tachogenerator 3; Speed setting controller 4 comprises MCU module 41, rotation speed measuring module 42, voltage measurement module 43, earth leakage protective device 45, actuator 46, zero-sequence transformer 47; Tachogenerator 3 sends to rotation speed measuring module 42 by the tach signal of gathered output shaft, and rotation speed measuring module 42 sends to MCU unit 41 by tach signal; Voltage measurement module 43 sends to MCU unit 41 by the voltage signal at gathered magnet exciting coil 23 two ends; Voltage measurement module 43 connects false load 48, and false load 48 is for protecting the open circuit voltage of magnet exciting coil 23; Electric leakage amplification module 45 receives the electric leakage signal that zero-sequence transformer 47 gathers, and electric leakage signal is sent to MCU unit 41; MCU unit 41Xiang actuator 46 transmits control signal, and actuator 46 is for controlling the mains switch of speed setting controller 4.
Described MCU unit 41 judges according to described tach signal and voltage signal, and when rotating speed is higher compared with low and clutch coil both end voltage, MCU unit 41Xiang actuator 46 sends control signal, and actuator 46 cuts off the power supply of speed setting controllers 4.
Whether described MCU unit 41 leaks electricity according to described electric leakage signal judgment device, and when electric leakage signal is within the scope of 35～45mA, MCU unit 41Xiang actuator 46 sends control signal, disconnects the power supply of speed setting controller 4.
The technique effect that the present invention can reach is:
The present invention has additional rotation speed measuring module and voltage measurement module in speed setting controller; measure respectively the rotating speed of output shaft and the voltage at electromagnetic slip clutches two ends being connected with claw-type pole; when rotating speed is higher compared with low and clutch coil both end voltage; MCU unit cuts off the power supply of speed setting controller, thereby reaches the object of protection clutch coil.
In the long playing process of motor, if wire insulation galls or coil insulation intensity declines, can cause equipment leakage, cause personal safety accident.Speed setting controller of the present invention has creepage protection function, can effectively prevent the generation of electric leakage accident.
Clutch coil, in long-term use procedure, if when open circuit occurs somewhere, coil power supply loop, can produce at open circuit place high pressure (280～320V left and right), insulator easily occurs and puncture, and the personnel that cause get an electric shock and device damage accident.The present invention has additional false load in speed setting controller, and the high pressure bringing in the time of can reducing circuit disconnection, drops to voltage below effective 36V safe voltage, thereby can prevent the generation of electric shock accidents.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the schematic diagram of electromagnetic speed-adjusting threephase asynchronous machine of the present invention.
Description of reference numerals in figure:
1 is threephase asynchronous, and 2 is electromagnetic slip clutches,
3 is tachogenerator, and 4 is speed setting controller,
21 is cylinder armature, and 22 is claw-type pole,
23 is magnet exciting coil, and 24 is load,
41 is MCU module, and 42 is rotation speed measuring module,
43 is voltage measurement module, and 44 is rotating speed display module,
45 is earth leakage protective device, 46Wei actuator,
47 is zero-sequence transformer.
Embodiment
As shown in Figure 1, electromagnetic speed-adjusting threephase asynchronous machine of the present invention, comprises threephase asynchronous 1, electromagnetic slip clutches 2, speed setting controller 4, and threephase asynchronous 1 connects electromagnetic slip clutches 2, and electromagnetic slip clutches 2 arrange speed setting controller 4; By electromagnetic slip clutches 2, realize the stepless speed regulation of motor;
Threephase asynchronous 1 is by AC380V threephase asynchronous machine Power supply; Speed setting controller 4 is by AC220V speed setting controller Power supply;
Electromagnetic slip clutches 2 comprise cylinder armature 21, claw-type pole 22, and threephase asynchronous 1 connects cylinder armature 21, and claw-type pole 22 connects load 24 by output shaft; On claw-type pole 22, be arranged with magnet exciting coil 23; Between cylinder armature 21 and claw-type pole 22, form working gas gap, cylinder armature 21 and claw-type pole 22 be independent rotation separately;
Make threephase asynchronous 1 drive 21 rotations of cylinder armature, make magnet exciting coil 23 pass into direct current simultaneously, magnet exciting coil 23 produces magnetic field in working gas gap; Cylinder armature 21 cuts the induced potential that this magnetic field produces, generation current in the process of rotation; The magnetic field interaction of the magnetic field that this electric current produces and claw-type pole 22, produces torque, makes claw-type pole 22 drive output shaft rotation, and band dynamic load 24 is rotated;
The direction of rotation of output shaft is identical with the direction of rotation of threephase asynchronous 1;
The rotating speed of output shaft under a certain load 24 depends on the size of the exciting current that passes into magnet exciting coil 23; The larger rotating speed of electric current is higher, otherwise low; Do not pass into electric current, output shaft can not be exported torque;
The rotating speed of output shaft is measured by tachogenerator 3;
Speed setting controller 4 comprises MCU(microcontroller) module 41, rotation speed measuring module 42, voltage measurement module 43, earth leakage protective device 45, actuator 46, zero-sequence transformer 47;
Tachogenerator 3 sends to rotation speed measuring module 42 by the tach signal of gathered output shaft, and rotation speed measuring module 42 sends to MCU unit 41 by tach signal, shows by rotating speed display module 44 simultaneously;
Voltage measurement module 43 connects the magnet exciting coil 23 of electromagnetic slip clutches 2, and voltage measurement module 43 sends to MCU unit 41 by the voltage signal at gathered magnet exciting coil 23 two ends; Voltage measurement module 43 connects false load 48, and false load 48 is for protecting the open circuit voltage of magnet exciting coil 23;
MCU unit 41 judges according to tach signal and voltage signal, when rotating speed lower (being less than rated speed) and clutch coil both end voltage when higher (being greater than 100V), MCU unit 41Xiang actuator 46 sends control signal, and actuator 46 cuts off the power supply of speed setting controller 4;
Electric leakage amplification module 45 receives the electric leakage signal that zero-sequence transformer 47 gathers, and electric leakage signal is sent to MCU unit 41; Whether MCU unit 41 leaks electricity according to this electric leakage signal judgment device; when electric leakage signal is within the scope of 35～45mA; MCU unit 41Xiang actuator 46 sends control signal, disconnects the power supply of speed setting controller 4, thus the object that reaches protection personal safety and avoid equipment breakdown to occur.
The invention belongs to a kind of interchange constant-torque stepless speed-regulating motor.
Claims (3)
1. an electromagnetic speed-adjusting threephase asynchronous machine, it is characterized in that: comprise threephase asynchronous (1), electromagnetic slip clutches (2), speed setting controller (4), threephase asynchronous (1) connects electromagnetic slip clutches (2), and electromagnetic slip clutches (2) arrange speed setting controller (4); Threephase asynchronous (1) is by AC380V threephase asynchronous machine Power supply; Speed setting controller (4) is by AC220V speed setting controller Power supply;
Electromagnetic slip clutches (2) comprise armature (21), claw-type pole (22), and threephase asynchronous (1) connects armature (21), and claw-type pole (22) connects output shaft; Claw-type pole (on 22) is arranged with magnet exciting coil (23); Between armature (21) and claw-type pole (22), form working gas gap, armature (21) and claw-type pole (22) be independent rotation separately;
When threephase asynchronous (1) drives armature (21) rotation, when magnet exciting coil (23) passes into direct current, claw-type pole (22) can drive output shaft rotation; The rotating speed of output shaft is measured by tachogenerator (3);
Speed setting controller (4) comprises MCU module (41), rotation speed measuring module (42), voltage measurement module (43), earth leakage protective device (45), actuator (46), zero-sequence transformer (47);
Tachogenerator (3) sends to rotation speed measuring module (42) by the tach signal of gathered output shaft, and rotation speed measuring module (42) sends to MCU unit (41) by tach signal;
Voltage measurement module (43) sends to MCU unit (41) by the voltage signal at gathered magnet exciting coil (23) two ends; Voltage measurement module (43) connects false load (48), and false load (48) is for protecting the open circuit voltage of magnet exciting coil (23);
Electric leakage amplification module (45) receives the electric leakage signal that zero-sequence transformer (47) gathers, and electric leakage signal is sent to MCU unit (41);
MCU unit (41) transmits control signal to actuator (46), and actuator (46) is for controlling the mains switch of speed setting controller (4).
2. electromagnetic speed-adjusting threephase asynchronous machine according to claim 1, it is characterized in that: described MCU unit (41) judges according to described tach signal and voltage signal, when rotating speed is higher compared with low and clutch coil both end voltage, MCU unit (41) sends control signal to actuator (46), and actuator (46) cuts off the power supply of speed setting controller (4).
3. electromagnetic speed-adjusting threephase asynchronous machine according to claim 1, it is characterized in that: whether described MCU unit (41) leaks electricity according to described electric leakage signal judgment device, when electric leakage signal is within the scope of 35～45mA, MCU unit (41) sends control signal to actuator (46), disconnects the power supply of speed setting controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332622.4A CN104065321A (en) | 2014-07-14 | 2014-07-14 | Electromagnetic speed adjusting three-phase asynchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332622.4A CN104065321A (en) | 2014-07-14 | 2014-07-14 | Electromagnetic speed adjusting three-phase asynchronous motor |
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| CN104065321A true CN104065321A (en) | 2014-09-24 |
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| CN201410332622.4A Pending CN104065321A (en) | 2014-07-14 | 2014-07-14 | Electromagnetic speed adjusting three-phase asynchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082600A (en) * | 2019-03-26 | 2019-08-02 | 阿尔特汽车技术股份有限公司 | A kind of Hybrid Vehicle electromagnetic clutch resistance measurement pilot system and method |
| CN113357327A (en) * | 2020-03-07 | 2021-09-07 | 东北林业大学 | Electromagnetic speed-regulating stepless speed changer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0591655A (en) * | 1991-09-26 | 1993-04-09 | Matsushita Seiko Co Ltd | Three-phase ac reverse phase/normal phase |
| CN1567696A (en) * | 2003-06-17 | 2005-01-19 | 刘建功 | Electromagnetic speed-regulating electrical haulage coal cutter |
| CN202696390U (en) * | 2012-08-20 | 2013-01-23 | 台州南华电机有限公司 | Electromagnetic speed-regulation three-phase asynchronous motor |
| CN203968026U (en) * | 2014-07-14 | 2014-11-26 | 葛氏控股有限公司 | Electromagnetic speed-adjusting threephase asynchronous machine |
-
2014
- 2014-07-14 CN CN201410332622.4A patent/CN104065321A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0591655A (en) * | 1991-09-26 | 1993-04-09 | Matsushita Seiko Co Ltd | Three-phase ac reverse phase/normal phase |
| CN1567696A (en) * | 2003-06-17 | 2005-01-19 | 刘建功 | Electromagnetic speed-regulating electrical haulage coal cutter |
| CN202696390U (en) * | 2012-08-20 | 2013-01-23 | 台州南华电机有限公司 | Electromagnetic speed-regulation three-phase asynchronous motor |
| CN203968026U (en) * | 2014-07-14 | 2014-11-26 | 葛氏控股有限公司 | Electromagnetic speed-adjusting threephase asynchronous machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082600A (en) * | 2019-03-26 | 2019-08-02 | 阿尔特汽车技术股份有限公司 | A kind of Hybrid Vehicle electromagnetic clutch resistance measurement pilot system and method |
| CN113357327A (en) * | 2020-03-07 | 2021-09-07 | 东北林业大学 | Electromagnetic speed-regulating stepless speed changer |
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Application publication date: 20140924 |
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