CN205356107U - Three phase motor for asynchronous starting synchronous operation automatic escalator - Google Patents
Three phase motor for asynchronous starting synchronous operation automatic escalator Download PDFInfo
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- CN205356107U CN205356107U CN201521112714.8U CN201521112714U CN205356107U CN 205356107 U CN205356107 U CN 205356107U CN 201521112714 U CN201521112714 U CN 201521112714U CN 205356107 U CN205356107 U CN 205356107U
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- asynchronous starting
- starting synchronous
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Abstract
The utility model discloses a three phase motor for asynchronous starting synchronous operation automatic escalator, including stator, rotor, front end housing, rear end cap, fan and fan housing. The stator includes stator core and stator winding, the rotor includes rotor core, pivot and cast aluminium squirrel cage, and rotor core is formed by stacking the polylith rotor punching, and the interval is equipped with a plurality of holes that are used for inlaying the squirrel -cage bar on the outer circumference of every rotor punching, has still offered a N magnet steel hole on every rotor punching, and the position of offering in the N magnet steel hole on this polylith rotor punching corresponds each other, downthehole the inlaying of a N magnet steel on this polylith rotor punching is equipped with the magnet steel, and N is more than or equal to 4's even number. The utility model discloses starting with the mode that three -phase asynchronous motor starts, moving with permanent magnet synchronous motor's working method again simultaneously, work efficiency is high, and power factor height and power consumption are hanged down. Utilize Y - triangle to start, the synchronous variable frequency starting's of fungible mode, and the start -up cost is low.
Description
Technical field
This utility model relates to a kind of threephase motor for escalator.
Background technology
Along with the development of Modernized City Construction, the escalator being used in market, supermarket, subway, station etc. gets more and more.Escalator generally adopts threephase asynchronous as power source, and owing to the handling capacity of passengers of escalator is big, movement velocity is relatively slow, therefore the threephase asynchronous driving escalator is had special requirement.But threephase asynchronous is owing to being subject to the restriction of self structure aspect, it is common to there is the shortcomings such as work efficiency is not high, power factor is low, power consumption is big, energy-saving effect is not good.
Summary of the invention
Technical problem to be solved in the utility model is in that to provide a kind of escalator threephase motor that can carry out in the way of threephase asynchronous startup and start, can run with the working method of permasyn morot again simultaneously, its work efficiency is high, power factor is high, and it is low to consume energy.
For solving above-mentioned technical problem, this utility model be the technical scheme is that
Asynchronous starting synchronous operation escalator threephase motor, including stator, rotor, drive end bearing bracket, rear end cap, fan and for covering the fan housing of this fan；Stator includes stator core and stator winding, and stator winding is embedded in the groove of stator core inner periphery；Rotor includes rotor core, rotating shaft and cast-in aluminum squirrel cage winding, rotor core is formed by stacking by polylith rotor punching, the excircle of every piece of rotor punching is interval with multiple hole for embedding squirrel-cage bar, it is characterized in that, every piece of rotor punching is further opened with N number of magnet steel hole, the N number of magnet steel hole on this polylith rotor punching to offer position mutually corresponding；Being embedded with magnet steel in N number of magnet steel hole on this polylith rotor punching, wherein, N is the even number be more than or equal to 4.
Above-mentioned asynchronous starting synchronous operation escalator threephase motor, wherein, described N number of magnet steel hole is along the circumferential direction spaced set of rotor punching.
Above-mentioned asynchronous starting synchronous operation escalator threephase motor, wherein, is filled with magnet steel glue or epoxy resin between each magnet steel with the hole wall in corresponding magnet steel hole, the circumferential both sides of each described magnet steel connect epoxy clamping plate respectively.
Above-mentioned asynchronous starting synchronous operation escalator threephase motor, wherein, the shape of cross section in each magnet steel hole is stepped, and including wide aperture portion and narrower bore portion, wherein, wide aperture portion is near stator.
Above-mentioned asynchronous starting synchronous operation escalator threephase motor, wherein, fan housing is formed by casting pig casting, and the side of fan housing is provided with multiple fresh air inlet.
Above-mentioned asynchronous starting synchronous operation escalator threephase motor, wherein, the enamel-covered wire of stator winding adopts F level enamel-covered wire.
Above-mentioned asynchronous starting synchronous operation escalator threephase motor, wherein, asynchronous starting synchronous operation escalator threephase motor also includes outside framework oil seal, and outside framework oil seal is enclosed within rotating shaft, and the outer rim of this outside framework oil seal is connected with the aperture of the centre bore of rear end cap.
Owing to this utility model have employed above technical scheme so that it is compared with prior art, at least have the advantage that
1, rotor of the present utility model is simultaneously provided with the cast-in aluminum squirrel cage winding of asynchronous starting and the magnet steel of synchronous operation, it is thus possible to start in the way of threephase asynchronous startup, can run with the working method of permasyn morot again simultaneously, its Starting mode may utilize Y-△ Starting mode, more simpler than existing permasyn morot, and work efficiency is higher than existing threephase asynchronous, and power factor is high and consumes energy low；Through Experimental comparison, its efficiency is brought up to 95% by the 86% of existing threephase asynchronous, and stator thermic load is about the 70% of existing threephase asynchronous, and energy-saving effect is notable；
2, by filling magnet steel glue or epoxy resin between magnet steel with the hole wall in corresponding magnet steel hole, and the fixing magnet steel of epoxy clamping plate mode, make connection more firm；
3, fan housing is formed by casting pig casting, compared with the fan housing that existing employing sheet metal or iron plate stretch, improve the mechanical strength of fan housing, simultaneously, sound insulation value also more preferably, thus adds mechanical strength and reduces escalator threephase asynchronous noise in use；
4, the enamel-covered wire of stator winding adopts the enamel-covered wire of F level, improves the insulating properties of motor；
5, one outside framework oil seal is set at the centre bore aperture inwall of rear end cap, under not affecting the premise that rotating shaft runs well, further increases the barrier propterty of motor；
6, balancing patch of the present utility model is arranged between the balance columns on the end ring lateral surface of cast-in aluminum squirrel cage winding, in order to carry out hamming.That it changes traditional balance mode, traditional balance weight is to be added on balance columns, rather than is added between two balance columns.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram (partial cross) of this utility model asynchronous starting synchronous operation one embodiment of escalator threephase motor.
Fig. 2 is the schematic diagram of the rotor punching according to this utility model one embodiment.
Fig. 3 illustrates the end ring of the cast-in aluminum squirrel cage winding according to this utility model one embodiment.
Fig. 4 illustrates the rotor balancing sheet according to this utility model one embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing this utility model made and further illustrating.
Refer to Fig. 1 and Fig. 2.According to escalator threephase asynchronous of the present utility model, including stator 1, rotor 2, drive end bearing bracket 3, rear end cap 4, fan 5 and for covering the fan housing 6 of this fan.
Stator 1 includes stator core 11 and stator winding, and stator winding is embedded in the groove of stator core 11 inner periphery.The enamel-covered wire of stator winding adopts F level enamel-covered wire.
Rotor 2 includes rotor core 21, rotating shaft 22 and cast-in aluminum squirrel cage winding 23.Rotor core 21 is formed by stacking by polylith rotor punching 211.In the present embodiment, rotor punching 211 is stalloy.
The whole excircle of every piece of rotor punching 211 is interval with multiple hole 212 for embedding squirrel-cage bar, for simplicity, illustrate only a portion hole 212 at Fig. 2.Every piece of rotor punching is further opened with N number of magnet steel hole 213, this N number of magnet steel hole 213 along the circumferential direction spaced set of rotor punching, the N number of magnet steel hole 213 on this polylith rotor punching to offer position mutually corresponding；It is embedded with magnet steel 7 in N number of magnet steel hole 213 on this polylith rotor punching.Preferably, being filled with magnet steel glue or epoxy resin between each magnet steel with the hole wall in corresponding magnet steel hole, the circumferential both sides of each magnet steel connect epoxy clamping plate respectively, so that magnet steel is fixing more firm.Above-mentioned N is the even number be more than or equal to 4, also constitutes N, S number of pole-pairs simultaneously.In the present embodiment, the quantity in magnet steel and magnet steel hole is six.The material of magnet steel is rubidium ferrum boron.The shape of cross section in each magnet steel hole 213 is stepped, and including wide aperture portion 213a and narrower bore portion 213b, wherein, wide aperture portion 213a is positioned at the radial outside of narrower bore portion 213b, near stator 1.
In this utility model, fan housing 6 is formed by casting pig casting, and the side of fan housing is provided with multiple fresh air inlet, and the model of casting pig is HT200.Compared with the fan housing that existing employing sheet metal or iron plate stretch, the mechanical strength of fan housing of the present utility model and sound insulation value all obtain lifting.
In order to improve the barrier propterty of motor, asynchronous starting synchronous operation escalator threephase motor according to this utility model one embodiment also includes outside framework oil seal 8, outside framework oil seal 8 is enclosed within rotating shaft 22, and the outer rim of this outside framework oil seal 8 is connected with the aperture of the centre bore of rear end cap 4.
In order to improve the balance quality of motor, it is additionally provided with rotor balancing sheet 9 according to the asynchronous starting synchronous operation escalator threephase motor of this utility model one embodiment.Referring to Fig. 3 and Fig. 4, rotor balancing sheet 9 is arranged between the balance columns 232 on the lateral surface of the end ring 231 of cast-in aluminum squirrel cage winding.Rotor balancing sheet 9 quantity is set and position is determined according to the practical situation of motor.
The foregoing is only preferred embodiment of the present utility model, all equivalences done according to claim of the present utility model change and modify, and all should belong to the scope that this utility model is contained.
Claims (10)
1. asynchronous starting synchronous operation escalator threephase motor, including stator, rotor, drive end bearing bracket, rear end cap, fan and for covering the fan housing of this fan；Described stator includes stator core and stator winding, and described stator winding is embedded in the groove of described stator core inner periphery；Described rotor includes rotor core, rotating shaft and cast-in aluminum squirrel cage winding, described rotor core is formed by stacking by polylith rotor punching, the excircle of every piece of rotor punching is interval with multiple hole for embedding squirrel-cage bar, it is characterized in that, every piece of rotor punching is further opened with N number of magnet steel hole, the N number of magnet steel hole on this polylith rotor punching to offer position mutually corresponding；Being embedded with magnet steel in N number of magnet steel hole on this polylith rotor punching, wherein, N is the even number be more than or equal to 4.
2. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterised in that N is equal to 6.
3. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterised in that described N number of magnet steel hole is along the circumferential direction spaced set of rotor punching.
4. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterised in that be filled with magnet steel glue or epoxy resin between each described magnet steel with the hole wall in corresponding magnet steel hole.
5. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 4, it is characterised in that the circumferential both sides of each described magnet steel connect epoxy clamping plate respectively.
6. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterised in that the shape of cross section in each described magnet steel hole is stepped, and including wide aperture portion and narrower bore portion, wherein, described wide aperture portion is near described stator.
7. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterised in that described fan housing is formed by casting pig casting, and the side of fan housing is provided with multiple fresh air inlet.
8. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterised in that the enamel-covered wire of described stator winding adopts F level enamel-covered wire.
9. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterized in that, described asynchronous starting synchronous operation escalator threephase motor also includes outside framework oil seal, described outside framework oil seal is enclosed within described rotating shaft, and the outer rim of this outside framework oil seal is connected with the aperture of the centre bore of described rear end cap.
10. asynchronous starting synchronous operation escalator threephase motor as claimed in claim 1, it is characterized in that, described asynchronous starting synchronous operation escalator threephase motor also includes rotor balancing sheet, and described rotor balancing sheet is arranged between the balance columns on the end ring lateral surface of described cast-in aluminum squirrel cage winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112714.8U CN205356107U (en) | 2015-12-28 | 2015-12-28 | Three phase motor for asynchronous starting synchronous operation automatic escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112714.8U CN205356107U (en) | 2015-12-28 | 2015-12-28 | Three phase motor for asynchronous starting synchronous operation automatic escalator |
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| Publication Number | Publication Date |
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| CN205356107U true CN205356107U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521112714.8U Active CN205356107U (en) | 2015-12-28 | 2015-12-28 | Three phase motor for asynchronous starting synchronous operation automatic escalator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877604A (en) * | 2017-03-29 | 2017-06-20 | 上海浩正电气有限公司 | A kind of intelligent self-starting magneto |
-
2015
- 2015-12-28 CN CN201521112714.8U patent/CN205356107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877604A (en) * | 2017-03-29 | 2017-06-20 | 上海浩正电气有限公司 | A kind of intelligent self-starting magneto |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |