CN2092832U - Ac speed adjusting device for cascade of double motor - Google Patents
Ac speed adjusting device for cascade of double motor Download PDFInfo
- Publication number
- CN2092832U CN2092832U CN 91203193 CN91203193U CN2092832U CN 2092832 U CN2092832 U CN 2092832U CN 91203193 CN91203193 CN 91203193 CN 91203193 U CN91203193 U CN 91203193U CN 2092832 U CN2092832 U CN 2092832U
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- Prior art keywords
- motor
- phase
- speed
- power
- cascade
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Control Of Ac Motors In General (AREA)
Abstract
The utility model relates to an AC speed adjusting device for cascade of double motor, which is used for the devices which adopts motor speed regulation dragging and in particular suitable for the large and middle-scale speed-regulating devices. The utility model makes the three-phase leading wires of the rotor of two ordinary winding AC asynchronous motors mutually connected, the three-phase leading wire of one winding AC asynchronous motor is connected with the power supply, and the three-phase leading wire of the other winding AC asynchronous motor is connected with the power supply via a voltage regulating and phase regulating device.
Description
The utility model is a kind of bi-motor tandem AC speed regulator, is applicable to that all adopt in the equipment that electric machine speed regulations drag, and effect is particularly evident when particularly being used in the big-and-middle-sized capacity electrical machinery speed control device.
The traditional type SCR cascade speed control device that uses is to provide an adjustable additional electromotive force opposite with the rotor induction gesture to realize speed governing by contravariant transformer, SCR inverter, rectifier to rotor at present.This device comprises compositions such as motor, silicon-controlled conversion cabinet, smoothing reactor, contravariant transformer.This apparatus structure is huge, complexity, and the cost height, poor reliability, maintenance difficult, loss power is big, and is serious to electric network pollution.
The speed regulating device that the purpose of this utility model designs for the deficiency that overcomes above-mentioned prior art just.It has replaced equipment such as this complicated electronic-controlled installation and contravariant transformer by a motor and a pressure regulation phase modulator.
Concrete formation of the present utility model is that the rotor three-phase lead-out wire with the logical coil wound rotor AC asynchronous motor of two Daeporis interconnects.Wherein motor stator three phase terminals directly connect electrical source of power, and another motor stator three phase terminals connect electrical source of power after by the pressure regulation phase modulator.
Below in conjunction with accompanying drawing the utility model is elaborated: Fig. 1 is the systematic schematic diagram of this device, and Fig. 2 is a structure diagram.
The traditional type cascade speed regulator is to utilize the shunting action of slip power that power output is changed to realize speed governing when speed governing.When adopting the utility model to realize speed governing, then be to utilize two motors to provide back-emf to control mutually, thereby controlled power output and realized complementing each other of power between two motors from power supply absorbed power separately.Because this power adjustments is finished in the motor internal electromagnetic field automatically, thereby best results.
These speed regulating device can guarantee two motor output speed strict synchronism.Two motors can be with being with a load, also bringing onto load operation separately.
The coil wound rotor lead-out wire E2 of motor 1 and motor 2 is connected with E2 '.The input and motor 1 stator terminal of pressure regulation phase modulator 3 are met electrical source of power V1 jointly, and its output V1 ' connects motor 2 stator terminal, and rotation pressure regulation phase modulator changes the input motor power voltage or phase place realizes smooth stepless speed-regulating.
Description of drawings: 1-motor, 2-motor, 3-pressure regulation phase converter, V1-supply voltage, V1 '-pressure regulation phase converter output voltage, E2-motor 1 rotor electromotive force, E2 '-motor 2 rotor electromotive forces, n-motor 1 rotating speed, n '-motor 2 rotating speeds
Claims (2)
1, a kind of bi-motor tandem AC speed regulator, comprise that two Daeporis lead to the coil wound rotor AC asynchronous motor, a pressure regulation phase modulator, it is characterized in that the rotor three-phase lead-out wire of the logical coil wound rotor AC asynchronous motor of two Daeporis is interconnected, wherein motor stator three phase terminals directly connect electrical source of power, and another motor stator three phase terminals connect electrical source of power after by the pressure regulation phase modulator.
2, bi-motor tandem AC speed regulator as claimed in claim 1 is characterized in that adopting phase modulator to change the input power phase and realizes speed governing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91203193 CN2092832U (en) | 1991-03-07 | 1991-03-07 | Ac speed adjusting device for cascade of double motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91203193 CN2092832U (en) | 1991-03-07 | 1991-03-07 | Ac speed adjusting device for cascade of double motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2092832U true CN2092832U (en) | 1992-01-08 |
Family
ID=4913558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91203193 Pending CN2092832U (en) | 1991-03-07 | 1991-03-07 | Ac speed adjusting device for cascade of double motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2092832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929103A (en) * | 2014-04-04 | 2014-07-16 | 烟台鲁宝钢管有限责任公司 | Controllable silicon rectifier device double driven by high power direct current motor |
-
1991
- 1991-03-07 CN CN 91203193 patent/CN2092832U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929103A (en) * | 2014-04-04 | 2014-07-16 | 烟台鲁宝钢管有限责任公司 | Controllable silicon rectifier device double driven by high power direct current motor |
| CN103929103B (en) * | 2014-04-04 | 2016-09-07 | 烟台鲁宝钢管有限责任公司 | A kind of high power DC electric machine pair the silicon controlled rectifier driven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |