CN103809118A - Motor armature winding inter-turn short circuit detector - Google Patents
Motor armature winding inter-turn short circuit detector Download PDFInfo
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- CN103809118A CN103809118A CN201310503357.7A CN201310503357A CN103809118A CN 103809118 A CN103809118 A CN 103809118A CN 201310503357 A CN201310503357 A CN 201310503357A CN 103809118 A CN103809118 A CN 103809118A
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Abstract
A motor armature winding inter-turn short circuit detector comprises a short circuit detector, a saw blade, an armature, a coil slot, a rotating shaft, a commutator, a coil, an iron core, a groove top end, a plug wire, a commutator segment, a silicon steel sheet and a coil nose, wherein the short circuit detector is designed according to transformer principles, the iron core utilizes a thick silicon steel sheet or is formed by utilizing a waste power transformer iron core to restructure the iron core into a shape resembling the Chinese character 'ao', the chamfer at the groove top end is in the shape of a circular arc to be matched with different diameters of motor armatures, coils of two groups of windings are wound on the iron core and are connected in series in an end-to-end mode, the plug wire is connected with an alternating current power supply of 220V, the diameter of a winding wire is 1.0 mm, every winding has 600 turns, the width of the saw blade is larger than that of the coil slot. The short circuit dot can be determined quickly by means of the short circuit detector and the saw blade and in combination with internal wiring analyses of the windings, and a user can firstly put the armature on the top end of the short circuit detector, and then place the saw blade on the coil slot on the upper portion of the armature to detect the fault of short circuit dot of the armature.
Description
Technical field
The present invention relates to a kind of armature winding interturn short-circuit detector, belong to motor winding and repair class.
Background technology
As everyone knows, in motor coil embedded groove, between two adjacent windings because shaping is beaten, or use motor improper, overload operation, or use year for a long time, insulation ag(e)ing, or when welding clipped wire is fallen into cause line turn-to-turn fault, cause winding interturn short-circuit, the general instrument of above-mentioned this fault can only be found short circuit, judge short dot wherein, difficulty is very large, so be the thing that motor direct labor and electricity are repaiied work and feel most headache, especially potential safety hazard, because of electric spark initiation fire.
Summary of the invention
The object of the invention is to be to overcome the deficiency of prior art, provide a with low cost, economical, the transformation of the way is simple, a kind of armature winding interturn short-circuit detector easy to use.
The present invention is in order to solve its technical matters, and the technical scheme of taking is:
1. according to the detector of transformer principle design.Its iron core adopts 0.35～0.5 millimeter of siliconized plate, or change a social system and change into concave shape with waste and old electrical transformer cores, groove break corner is in the arc-shaped, mates with the different-diameter of armature, is wound with 2 groups of windings on iron core, series connection end to end, outlet connects 220 volts of AC power, and winding conducting wire diameter is 1.0 millimeters, and every winding is 600 circles, separately have saw blade, it is wider than armature width of rebate.Adopt short circuit detector and saw blade by embodiment, analyze in conjunction with winding back panel wiring, just can sentence rapidly short dot.First armature is placed on the top of short circuit detector, then is placed on armature upper lines notch with saw blade, to check armature from short circuit point failure.
2. with slot coil turn-to-turn short circuit.In same groove, between levels coil, because not padding, layer insulation causes turn-to-turn short circuit.By Fig. 2 be the 7th groove the short circuit of D point, be the limit short circuits of the 7th coil upper strata Bian Yu 13 coil lower floors, make so whole coil form two short circuit closed-loop paths, 1,13,2,14,3,15,4,16,5,17,6,18 and 7,19,8,20,9,21,10,22,11,23,12 form two closed circuits separately.This short-circuit current groove of all coils of flowing through, so in the time trying with small saw blade, have vibration on all grooves.So just can judge it has been levels short circuit.
3. two-phase and line turn-to-turn fault can be made up of two coils that are in series by short-circuited conducting sleeve from above-mentioned analysis.So be separated with mutually four groove small saw blade vibrations on whole armature slot.By in be single wave winding therefore short dot is at commutator end or nose, gained phenomenon has again not co-occurrence to be described below:
1. short dot is at nose.At this moment short-circuited conducting sleeve is made up of two half coils and a coil, and the groove at its place all can make saw blade vibration, is located at the short circuit of A point at Fig. 3, and at this moment short-circuited conducting sleeve is by the 9th coil upper strata, the 8th coil lower floor, and the 20th coil all forms.And the short-circuit current place groove 2,9,14,20 of flowing through, so all saw blade vibrations.Its groove is apart 7-6-8-6 bar groove.Therefore in the time checking armature with short circuit detector, saw blade is vibrating at a distance of 7-6-8-6 bar groove interval.At this moment can judge that short dot is at nose.At this moment towards commutator from left to right number at 6～8 groove shelves Weis of being separated by, count and begin several 1 until the 7th groove by 6, short dot one fixes between the 7th, 8 grooves.This short dot generally touches the askew two hypotenuse short circuits that make in the time shifting workpiece.2. short dot is at commutator end.Formed by whole two coils at the known at this moment short-circuited conducting sleeve of Fig. 3.For example, in the short circuit of B point, such the 18th, 7 coils form short-circuited conducting sleeve, and the groove 18,12,7,1 that its short-circuit current is flowed through will make saw blade vibration.Its slot pitch shelves are 7-7-7-6 bar groove.In the time running into above-mentioned situation, Ding judges that this armature winding is in commutator end short circuit; Its short dot is towards commutator from left to right in several the 1st 7-7 groove shelves.These shelves from left to right the 6th, 7 grooves lead-in wires connect commutator and necessarily have short circuit.In general, this kind of short circuit is all between Dou line, to be embedded with metal and to cause having residual tin point, shot copper between rise piece or drawing.As long as direct inspection can be fixed a breakdown herein.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is that structure of the present invention is always schemed.
Fig. 2 is levels short circuit stretch-out view in the same groove of armature winding of the present invention.
Fig. 3 is that armature winding short dot of the present invention is at front nose and rear nose schematic diagram.
Fig. 4 is short circuit detector structural drawing of the present invention.
The 1. short circuit detector 2. saw blade 3. armature 4. coil grain 5. rotating shaft 6. commutator 7. coil 8. recessed poor top of iron core 9. 10. plug cord 11. commutator segment 12. siliconized plate 13. coil nose 14.D turn-to-turn short circuit point 15.B point nose short circuit 16.A short dots in figure
Embodiment
In Fig. 1 and Fig. 2, short circuit detector (1) designs according to transformer principle, its iron core (8) adopts thick 0.35～0.5 millimeter of siliconized plate (14), or change a social system and change into concave shape with waste and old electrical transformer cores, groove top (9) chamfering is in the arc-shaped, mate with the different-diameter of armature, on iron core, be wound with the coil (7) of 2 groups of windings, series connection end to end, plug cord (10) connects 220 volts of AC power, winding conducting wire diameter is 1.0 millimeters, every winding is 600 circles, separately there is saw blade, it is wider than coil groove (4) width, adopt short circuit detector (1) and saw blade (2), analyze in conjunction with winding back panel wiring, just can sentence rapidly short dot, first armature is placed on the top of short circuit detector (1), use again saw blade (2) to be placed on armature upper lines ring recess (4), to check armature from short circuit point failure.
Claims (2)
1. an armature winding interturn short-circuit detector, it is characterized in that: it is by short circuit detector (1), saw blade (2), armature (3), coil groove (4), rotating shaft (5), commutator (6), coil (7), iron core (8), recessed poor top (9), plug cord (10), commutator segment (11), siliconized plate (12) and coil nose (13) composition, short circuit detector (1) designs according to transformer principle, its iron core (8) adopts thick 0.35～0.5 millimeter of siliconized plate (14), or change a social system and change into concave shape with waste and old electrical transformer cores, groove top (9) chamfering is in the arc-shaped, mate with the different-diameter of armature, on iron core, be wound with the coil (7) of 2 groups of windings, series connection end to end, plug cord (10) connects 220 volts of AC power, winding conducting wire diameter is 1.0 millimeters, every winding is 600 circles, separately there is saw blade, it is wider than coil groove (4) width, adopt short circuit detector (1) and saw blade (2), analyze in conjunction with winding back panel wiring, just can sentence rapidly short dot, first armature is placed on the top of short circuit detector (1), use again saw blade (2) to be placed on armature upper lines ring recess (4), to check armature from short circuit point failure.
2. a kind of armature winding interturn short-circuit detector according to claim 1, it is characterized in that: short dot is in coil nose (13), at this moment short-circuited conducting sleeve is made up of two half coils and a coil, the groove at its place all can make saw blade vibration, be located at the short circuit of A point at Fig. 3, at this moment short-circuited conducting sleeve is by the 9th coil upper strata, the 8th coil lower floor, and the 20th coil all forms.And the short-circuit current place groove 2,9,14,20 of flowing through, so all saw blade (2) vibrations.Its groove is apart 7-6-8-6 bar groove.Therefore in the time checking armature with short circuit detector, saw blade is vibrating at a distance of 7-6-8-6 bar groove interval.At this moment can judge that short dot is at nose, at this moment towards commutator from left to right number at 6～8 groove shelves Weis of being separated by, count and begin several 1 until the 7th groove by 6, short dot one fixes between the 7th, 8 grooves, this short dot generally touches the askew two hypotenuse short circuits that make in the time shifting workpiece.2. short dot is at commutator end, formed by whole two coils at the known at this moment short-circuited conducting sleeve of Fig. 3, for example, in B point nose short circuit (15), such the 18th, 7 coils form short-circuited conducting sleeve, and the groove 18,12,7,1 that its short-circuit current is flowed through will make saw blade (2) vibration.Its slot pitch shelves are 7-7-7-6 bar groove.In the time running into above-mentioned situation, judge that this armature winding is in commutator end short circuit; Its short dot is towards commutator (6) from left to right in several the 1st 7-7 groove shelves; these shelves from left to right the 6th, 7 grooves lead-in wires connect commutator (6) and necessarily have short circuit; in general, this kind of short circuit is all between Dou line, to be embedded with metal and to cause having residual tin point, shot copper between rise piece or drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503357.7A CN103809118A (en) | 2013-10-14 | 2013-10-14 | Motor armature winding inter-turn short circuit detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503357.7A CN103809118A (en) | 2013-10-14 | 2013-10-14 | Motor armature winding inter-turn short circuit detector |
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| CN103809118A true CN103809118A (en) | 2014-05-21 |
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| CN201310503357.7A Pending CN103809118A (en) | 2013-10-14 | 2013-10-14 | Motor armature winding inter-turn short circuit detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866685A (en) * | 2016-05-26 | 2016-08-17 | 广西玉柴博耐特电器有限公司 | Special equipment for detecting rotor of starter and detection method |
| CN109541388A (en) * | 2018-11-02 | 2019-03-29 | 陕西航空电气有限责任公司 | A kind of detection method of direct current generator wave winding wiring correctness |
-
2013
- 2013-10-14 CN CN201310503357.7A patent/CN103809118A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866685A (en) * | 2016-05-26 | 2016-08-17 | 广西玉柴博耐特电器有限公司 | Special equipment for detecting rotor of starter and detection method |
| CN105866685B (en) * | 2016-05-26 | 2019-02-22 | 广西玉柴博耐特电器有限公司 | A kind of starter armature detection special equipment and detection method |
| CN109541388A (en) * | 2018-11-02 | 2019-03-29 | 陕西航空电气有限责任公司 | A kind of detection method of direct current generator wave winding wiring correctness |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |
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| WD01 | Invention patent application deemed withdrawn after publication |