CN2170518Y - Detector for cast-aluminium rotor of motor - Google Patents
Detector for cast-aluminium rotor of motor Download PDFInfo
- Publication number
- CN2170518Y CN2170518Y CN 93228420 CN93228420U CN2170518Y CN 2170518 Y CN2170518 Y CN 2170518Y CN 93228420 CN93228420 CN 93228420 CN 93228420 U CN93228420 U CN 93228420U CN 2170518 Y CN2170518 Y CN 2170518Y
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- CN
- China
- Prior art keywords
- motor
- detector
- utility
- magnetic field
- model
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a cast aluminium rotor detector which can detect the state of a cast aluminium rotor in a motor. The utility model is composed of a magnetic field generator and a detector. A coil is connected with a voltage dividing resistor in series inside the magnetic field generator. The coil is connected with an ammeter in parallel in the detector. The silicon steel sheets used by the magnetic field generator and the detector are groove-shaped or semicircle-shaped or U-shaped. The utility model has the advantages of fast detection speed and high accurate rate when the utility model detects the rotor of the motor and has the advantages that the utility model is suitable for high power motors of which the power is beyond 10kW, etc.
Description
The utility model relates to a kind of detector of judging that motor is good Yu bad, exactly is a kind of detector that can conclude whether the aluminum strip in the motor interior cast-aluminum rotor disconnects.
The motor that uses is cast-aluminum rotor mostly at present.Because cast aluminium fragility is very big, so aluminum strip very easily ruptures.If the aluminum strip in the rotor is in case fracture will reduce power of electric motor greatly.Facts have proved, in the cast-aluminum rotor of motor, disconnect, then will make motor power (output) descend 25% if any an aluminum strip.Thus, before the motor assembling, can promptly check out whether the aluminum strip in the rotor disconnects, be very important.Check that at present the common method of motor rotor is to use disconnected bar inspection machine.This inspection machine has following shortcoming: 1, inspection speed is slow; 2, check that error is big, promptly inaccurate; 3, can only check the fractional electric motor that 10KW is following, then inapplicable to the high power motor more than the 10KW.
The purpose of this utility model is for the user provides a kind of detector, and it can be judged rapidly and exactly, and which root aluminum strip is good in the motor cast-aluminum rotor, and which root is bad (promptly disconnecting).
The utility model is made up of magnetic field generator and detecting device two parts.Its technical essential is: divider resistance R of serial connection on the coil of magnetic field generator, and the size of its resistance is identical with the impedance magnitude of coil; On the coil in the detecting device and connect a reometer; The shape of used silicon steel sheet should be flute profile, semicircle or U-shaped in magnetic field generator and the detecting device.
The utility model can find out the disconnected bar in the cast-aluminum rotor after realizing rapidly, exactly, and the high power motor more than the 10KW also is suitable for.
Fig. 1 is the utility model magnetic field generator synoptic diagram.
Fig. 2 is a detecting device synoptic diagram of the present utility model.
Fig. 3 is a working condition synoptic diagram of the present utility model.
Among the figure, the 1, the 5th, silicon steel sheet, the 2, the 4th, coil, the 3rd, divider resistance, the 6th, reometer, the 7th, tested aluminum strip, the 8th, rotor silicon steel sheet, the 9th, cast-aluminum rotor.
Below in conjunction with embodiment, its principle is further specified.
Get: 1. divider resistance R=1.5K Ω, one;
2. the thick 0.5mm of grooved silicon steel sheet, long 35mm, wide 15mm is some;
3. the coil in the magnetic field generator: φ=0.12mm encloses around 3500;
4. the coil in the detecting device: φ=0.12mm encloses around 900;
5. reometer 500mA is one.
Connect and get final product by Fig. 1, Fig. 2 connected mode.
Claims (1)
- A kind ofly can judge good Yu the bad detection apparatus for cast-aluminium rotor of cast-aluminum rotor in the motor, it is made up of magnetic field generator, detecting device two parts, it is characterized in that divider resistance of serial connection on the coil of magnetic field generator, the size of its resistance is big or small identical with this coil impedance; On the coil in the detecting device and connect a reometer; The concrete shape of used silicon steel sheet should be flute profile, semicircle or U-shaped in magnetic field generator and the detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228420 CN2170518Y (en) | 1993-06-09 | 1993-06-09 | Detector for cast-aluminium rotor of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228420 CN2170518Y (en) | 1993-06-09 | 1993-06-09 | Detector for cast-aluminium rotor of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2170518Y true CN2170518Y (en) | 1994-06-29 |
Family
ID=33805471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93228420 Expired - Fee Related CN2170518Y (en) | 1993-06-09 | 1993-06-09 | Detector for cast-aluminium rotor of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2170518Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202148B (en) * | 2007-10-26 | 2012-02-29 | 华中科技大学 | Steel pipe partial oblique magnetization device |
| CN104089552A (en) * | 2014-07-01 | 2014-10-08 | 宁波狮球通风机电有限公司 | Inclined groove slope detector for shade-pole motor rotor |
-
1993
- 1993-06-09 CN CN 93228420 patent/CN2170518Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202148B (en) * | 2007-10-26 | 2012-02-29 | 华中科技大学 | Steel pipe partial oblique magnetization device |
| CN104089552A (en) * | 2014-07-01 | 2014-10-08 | 宁波狮球通风机电有限公司 | Inclined groove slope detector for shade-pole motor rotor |
| CN104089552B (en) * | 2014-07-01 | 2017-01-25 | 宁波狮球通风机电有限公司 | Inclined groove slope detector for shade-pole motor rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |