CN103701284A - Large/middle power speed-variable multi-mouse cage three-phase asynchronous motor - Google Patents
Large/middle power speed-variable multi-mouse cage three-phase asynchronous motor Download PDFInfo
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Abstract
The invention relates to a large/middle power speed-variable multi-mouse cage three-phase asynchronous motor, and solves the technical problems that the conventional mouse case three-speed motor is low in jack-up weight, instable in three-stage speed regulation, large in impact current and low in operation security when a YZR wound motor descends. The motor comprises a stator, a rotor, a shaft and a base, wherein the stator is provided with a stator iron core and two sets of stator windings; the rotor is provided with a rotor iron core; a part of the windings are in external connection and is disconnected from short circuit connection. The motor can be widely applied to equipment such as crane hoisting devices, cranes, mining cranes, warehouses, goods yards and devices for throwing and withdrawing steamship anchors.
Description
Technical field
The present invention relates to a kind of motor, particularly relate to a kind of many mouse cages of high and medium power speed change threephase asynchronous.
Background technology
In high-building construction, often use tower machine or hoist engine, the lifting electric motor that it uses, requires under mode of speed regulation, and heavy-duty low-speed, underloading are at a high speed, speed adjustable range is large.
The quality of above-mentioned lifting electric motor mode of speed regulation will directly affect the performance of complete machine.At present, this special-purpose lifting electric motor mainly contains three classes:
The first kind is coiling electric motor.Although this class motor power is large, starting current is little, has following problem: dangerous during decline (load decline coiling electric motor pulling force is zero); Manufacturing cost is high; Electric control system is complicated; Under low-grade rotating speed, heating greatly, easily burns out line bag; Rotor crosstalk resistance and speed control with eddy current braking all belong to " dynamic braking ", and waste resource, does not meet energy-conserving and environment-protective requirement.
Equations of The Second Kind is frequency control motor.Although this motor speed adjustable range is wide, can stepless speed control, operate steadily without impacting, this cover system needs frequency converter, and operating cost is very high, and especially powerful frequency converter price is difficult to be widely used especially.Meanwhile, also there is following problem: under adverse circumstances, frequency converter easily breaks down; The life-span of frequency converter is generally also with regard to about 7 years; In addition, more containing high order harmonic component in electric current, electrical network is had to certain pollution, also make motor self increase loss, cause that the motor feels hot.Therefore, this class electric system is not widely used yet.
The 3rd class is pole changing threephase asynchronous.This class motor is squirrel-cage motor, adopts distal pole than pole changing, there is no brushgear easy to wear, also needn't another attached speed regulating device, therefore have advantages of simple in structure, easy to maintenance.In performance, have advantages of that speed ratio is large, staring torque is high, overload capacity is strong and can frequent starting braking, rotating.Exactly because above-mentioned advantage, this class motor has obtained application very widely.This motor is generally 4/6/24,4/8/24,4/8/32 utmost point three-speed motor, and pole-changing directly obtains the high, medium and low third speed of lifting mechanism, and the biggest lifting capacity can only reach 6t.The shortcoming of this motor is: during gearshift, have certain impact; Lifting speed is slow; Three gear fail safes when step-down operation are low.The general IP23 design of tradition three-speed motor overload capacity is poor, detent torque≤1.8N.M, existing three-speed motor is that the winding of three speed is independent of one another and share a stator core, this structure is used that winding conducting wire is many, manufacturing cost is high, and make that electric efficiency is low, temperature rise, the easy fault that burns out line bag.
Summary of the invention
The present invention is exactly that low lifting weight in order to solve existing three-speed motor, lifting speed are slow, fail safe technical problem low, that unstable during three fast stage change speed governings, impulse current is large during three gear step-down operations, provides that a kind of lifting weight is large, lifting is steady, speed is fast, little many mouse cages of the high and medium power speed change threephase asynchronous of impulse current during safe when four or five gear step-down operations, pole changing.
For this reason, the invention provides a kind of many mouse cages of high and medium power speed change threephase asynchronous, it is provided with stator, rotor, axle, support, stator is provided with stator core and stator winding, rotor is provided with rotor core, and stator winding is two covers, and wherein part winding adopts outside connection and disconnects short circuit and connects.
Adopt above-mentioned method of attachment, its reason is, in motor, a set of winding is in operation, and another set of winding can produce electromotive force, is equivalent in generating, therefore need to disconnect all short circuit connections in winding, adopt the outside connection of part winding, otherwise the phenomenon that short circuit in winding burns can occur.
Preferably, two cover stator winding are 2Y/ △, 4Y/2 △, 2Y/Y, 4Y/2Y, 4Y/3Y or 2Y/2 △/2 △, 4Y/4Y/4Y connection.
Preferably, stator double winding is 4/6/8/32 utmost point, 4/6/12/32 utmost point, 4/6/10/40 utmost point or 4/6/8/12/48 utmost point.
Preferably, the model of support is 200,225,250,280,315,355 or 400.
Preferably, the groove number of stator core and rotor core is 72 or 90 or 108 grooves.
Preferably, the outer diameter D of stator core is: D=Φ * 102～106%, described Φ is respectively 327mm, 368mm, 400mm, 423mm, 493mm or 560mm, and the parameter of above-mentioned Φ is respectively the universal standard external diameter that model is 200,225,250,280,315,355 or 400 seat No..
Preferably, the non-parallel tooth height H of stator core is: H=b
t*0.3～0.6, described b
tfor 4.5mm～6mm, 4.5mm～6mm, 5mm～7mm, 4.5mm～9mm, 5mm～11mm or 5.5mm～12mm.
Preferably, the mouse cage of rotor, mouse number of rings are more than two.
Preferably, support is provided with heat dissipation ventilation road.
The present invention has improved fail safe when hoisting equipment hangs the weight rate of climb (tower machine hoisting mechanism halliard speed GB 150～18m/min, the fast many squirrel-cage motors rope speed of four-speed five reach 165～13.6m/min) and decline weight greatly; Can realize reduction support, save stator core material, volume is little, and manufacturing cost reduces; In the situation that using identical seat No., can increase power of motor, and the smooth decreasing that hoists, 10% left and right of can economizing on electricity; Lifting tonnage maximum can reach 100t, meets various operating modes completely.In addition, rotor adopts many cage-shaped structure, motor is in operation and automatically joins mouse cage 1,1-2,1-2-3, and can change according to stator current, rotor mouse cage automatically increases or reduces, and improves like this detent torque (Zhuan Zhuan Ju≤2.2), reduce starting current, impulse current while greatly reducing shift speed change, and temperature of rotor also reduced, and reached power saving, increases useful life, improved production efficiency.
Further aspect of the present invention, by the description of the embodiment below with reference to accompanying drawing, is clearly recorded.
Accompanying drawing explanation
Fig. 1 is stator winding catenation principle figure of the present invention;
Fig. 2 is rotor iron core lamination groove structural representation of the present invention;
Fig. 3 is the present invention's 72 groove stator core stamping film trap structural representations;
Fig. 4 is the present invention's 108 groove stator core stamping film trap structural representations;
Fig. 5 is the present invention's 90 groove stator core stamping film trap structural representations;
Fig. 6 is stator core adjusted size figure of the present invention.
Embodiment
In the present invention, in the situation that seat No. is constant, stator core changes external diameter according to 2p demand, optimizes each utmost point parameter in computing, is described as follows:
Many mouse cages of high and medium power speed change threephase asynchronous obtains each extremely needed power in same support, and for example, tower machine hangs 8T cargo lifting speed 150-18m/min, and every utmost point power demand is: 4 utmost points, 55-60KW; 6 utmost points, 37KW; 8 utmost points, 30KW; 10 utmost points, 24KW; 12 utmost points, 18KW; 32 utmost points, 10KW; 40 utmost points, 6KW.Every extremely required electric current is: 4 utmost points, 2A/KW; 32 utmost points, 6.4A/KW; Every utmost point KW electric current A is different, sectional area of wire mm
2almost, therefore, need to reduce to greatest extent every extremely every phase winding turns-in-series.
In the present invention, the one, stator core outer diameter D Φ is increased to 2～6%, change h
cvalue has obvious circle to reduce to the high speed windings in series number of turn; The 2nd, change non-parallel tooth height (depth of rebate), non-parallel tooth height=b
t*0.3～0.6(b
tfor the stator core facewidth, for example, 200 seat No. stator core facewidth b
t=5.8166mm), change non-parallel tooth height and obviously reduce the low speed windings in series number of turn.
The stator core facewidth is according to warp, the facewidth, the high size of yoke in middling speed (6/8 utmost point) stator, reaches following three large fundamental formular numerical value (the parallel facewidth of the how many variation of groove number).
Particularly, the parallel facewidth 4.5mm～6mm of 200 seat No.; The parallel facewidth 4.5mm～6mm of 225 seat No.; The parallel facewidth 5mm～7mm of 250 seat No.; The parallel facewidth 4.5mm～9mm of 280 seat No.; The parallel facewidth 5mm～11mm of 315 seat No.; The parallel facewidth 5.5mm～12mm of 355 seat No..
Particularly, can, according to following formula, determine relevant parameter:
W=K
eu
phase* 10
2/ 1.55 τ LK
wb
δ
W=2pK
eu
phase* 10
2/ 1.44b
tz
1l
wb
t
W=K
eu
phase* 10
2/ 4.19h
ck
wb
c
200 stator outer diameter Φ 327mm
12 utmost points
0.92*380*100/1.55*5.759*32*0.837*0.7=209
12*0.92*380*100/1.44*0.5*32*0.837*72*1.4=218
0.92*380*100/4.19*1.93*32*0.837*1.225=132
6 utmost points
0.92*220*100/1.55*11.519*32*0.677*0.7=75
6*0.92*220*100/1.44*0.5*32*0.677*72*1.4=77
0.92*220*100/4.19*1.93*32*0.677*1.225=94
12/6 winding fixed 228 circles of the number of turn that are often in series very, 12 utmost point △ connect 1.666V/ circle, 6 very 2Y connect that to calculate be 2.34V/ circle, actual 2.115V/ circle.6 utmost point running currents are more minimum than 12.
4 utmost points
0.94*380*100/1.55*17.27*32*0.556*0.7=107
4*0.94*380*100/1.44*0.5*32*0.556*72*1.4=110
0.94*380*100/4.19*1.93*32*0.556*1.4=177
32 utmost points
32*0.9*220*100/1.44*0.50*32*0.945*72*1.4=289 circle, reality=217(wherein generate 8 utmost points).
4/32 extremely a set of winding, with 32 very accurate, 32 utmost point Y connect 1.018V/ circle, and 4 utmost point 2 △ scoop out 3.518V/ circle * 108 circles=380V.In calculating, 380/177 circle=2.146V/ circle, that twice formula 106,107 is just in time suitable.If it is just little to add the series winding number of turn 32 utmost point power, groove also can not load coil, does not add series connection umber of turn, and 4 electrode currents are too large.Therefore, this stator is infeasible.
Adjust stator core external diameter 1:
200 stator outer diameter Φ 327*2/%mm=333mm
12 utmost points
0.92*380*100/1.55*5.759*32*0.837*0.7=209
12*0.92*380*100/1.44*0.5*32*0.837*72*1.4=218
0.92*380*100/4.19*2.23*32*0.837*1.225=114
6 utmost points
0.92*220*100/1.55*11.519*32*0.677*0.7=75
6*0.92*220*100/1.44*0.5*32*0.677*72*1.4=77
0.92*220*100/4.19*2.23*32*0.677*1.225=81
Extremely inoperative to 6/12.
4 utmost points
0.94*380*100/1.55*17.27*32*0.556*0.7=107
4*0.94*380*100/1.44*0.5*32*0.556*72*1.4=110
0.94*380*100/4.19*2.23*32*0.556*1.4=153.5
32 utmost points
32*0.9*220*100/1.44*0.5*32*0.945*72*1.4=289 circle, reality=217(wherein generate 8 utmost points)
4/32 extremely a set of winding, with 32 very accurate, 32 utmost point Y connect 1.018V/ circle, 4 utmost point 2 △ scoop out 3.518V/ circle * 108 circles=380V.380/153.5 circle in calculating=2.47V/ circle, than on improved 15%.Stator can not be used.
Adjust stator core external diameter 2:
200 stator outer diameter Φ 327*3.3/%mm=338mm
12 utmost points
0.92*380*100/1.55*5.759*32*0.837*0.7=209
12*0.92*380*100/1.44*0.5*32*0.837*72*1.4=218
0.92*380*100/4.19*2.48*32*0.837*1.225=102
6 utmost points
0.92*220*100/1.55*11.519*32*0.677*0.7=75
6*0.92*220*100/1.44*0.5*32*0.677*72*1.4=77
0.92*220*100/4.19*2.48*32*0.677*1.225=73
Extremely inoperative to 6/12.
4 utmost points
0.94*380*100/1.55*17.27*32*0.556*0.7=107
4*0.94*380*100/1.44*0.5*32*0.556*72*1.4=110
0.94*380*100/4.19*2.48*32*0.556*1.4=138
32 utmost points
32*0.9*220*100/1.44*0.5*32*0.945*72*1.4=289 circle, reality=216(wherein generate 8 utmost points).
4/32 extremely a set of winding, with 32 very accurate, 32 utmost point Y connect 1.018V/ circle, 4 utmost point 2 △ scoop out 3.518V/ circle * 108 circles=380V.380/138 circle in calculating=2.75V/ circle, has improved again 11% than upper.Stator can not be used.
Adjust stator core external diameter 3:
200 stator outer diameter Φ 327*6/%mm=347mm
12 utmost points
0.92*380*100/1.55*5.759*32*0.837*0.7=209
12*0.92*380*100/1.44*0.5*32*0.837*72*1.4=218
0.92*380*100/4.19*3.0*32*0.837*1.225=85
6 utmost points
0.92*220*100/1.55*11.519*32*0.677*0.7=75
6*0.92*220*100/1.44*0.5*32*0.677*72*1.4=77
0.92*220*100/4.19*3*32*0.677*1.225=61.5
Extremely inoperative to 6/12.
4 utmost points
0.94*380*100/1.55*17.27*32*0.556*0.7=107
4*0.94*380*100/1.44*0.5*32*0.556*72*1.4=110
0.94*380*100/4.19*3.0*32*0.556*1.4=114
32 utmost points
32*0.9*220*100/1.44*0.5*32*0.945*72*1.4=289 circle, reality=216(wherein generate 8 utmost points)
4/32 extremely a set of winding, with 32 very accurate, 32 utmost point Y connect 1.018V/ circle, 4 utmost point 2 △ scoop out 3.518V/ circle * 108 circles=380V.380/114 circle=3.333 circle in calculating, has proved that adjustment stator outer diameter size high speed winding has positive effect.
Adjust the non-parallel teeth size 2.1mm of stator core:
B
tthe narrow dimension of=parallel teeth+non-parallel tooth/3()
12 utmost points
0.92*380*100/1.55*5.759*32*0.837*0.7=209
12*0.92*380*100/1.44*0.57*32*0.837*72*1.4=196
0.92*380*100/4.19*3.0*32*0.837*1.225=85
6 utmost points
0.92*220*100/1.55*11.519*32*0.677*0.7=75
6*0.92*220*100/1.44*0.57*32*0.677*72*1.4=70
0.92*220*100/4.19*3*32*0.677*1.225=61.5
6/12 utmost point turns-in-series reduces by 22 circles
4 utmost points
0.94*380*100/1.55*17.27*32*0.556*0.7=107
4*0.94*380*100/1.44*0.57*32*0.556*72*1.4=100
0.94*380*100/4.19*3.0*32*0.556*1.4=114
32 utmost points
32*0.9*220*100/1.44*0.57*32*0.945*72*1.4=250 circle, reality=187(wherein generate 8 utmost points).
4/32 extremely a set of winding, with 32 very accurate, 32 utmost point Y connect 1.018V/ circle, and 4 utmost point 2 △ scoop out 3.518V/ circle * 108 circles=380V.380/114 circle=3.333 circle in calculating.
Adjust the extremely every groove of stator outer diameter 4/32 and reduce (177-114/12=5.5) 11 circles.
Adjusted after non-parallel tooth, 6/12 extremely every groove reduces by 2 circles, and 4/32 extremely every groove reduces the number of turn 2 circles.
6/12 polar conductor 1.0*4=2*2=6.28
24/32 polar conductor 1.0*5=2*2=15.7
26.28+15.7=21.9
2.
(4/32 polar conductor 1.0*5=15+15=118
2)+(6/12 polar conductor 1.0*4=9+9=56.52
2)=174.5
2.
Adjust before core dimensions every groove 174.5
2conductive wire cross-section is amassed (former stator core dimensions can not be produced 4 electric motor with speed).Adjust after core dimensions every groove 113.1
2conductive wire cross-section is long-pending.
Can find out and strengthen stator outer diameter Φ size, increase after Yoke hc value power electric motor in 200 support energy production four-speeds.Strengthen non-parallel tooth depth and increased parallel teeth bt value.Effectively reduce the every number of turn that is extremely often in series of low speed winding.In stator slot, high low speed winding can be vacated 21.9mm
2area, has had space to strengthen high low speed winding conducting wire cross-sectional area; Reduce wire turns-in-series, increased winding conducting wire cross-sectional area, reduce copper loss; Increased Yoke h
cvalue, strengthening non-parallel tooth depth has increased parallel teeth b
tvalue, reduces iron loss; Increased winding conducting wire cross-sectional area, every fast increased power 9～25%.
In the present invention, the mouse cage of rotor, mouse number of rings are more than two.The many threephase asynchronouses of high and medium power speed change, light stator has been optimized work and has only been done half, motor and than reason of transformer, rotor also will be optimized, so rotor is also established two cover three cover mouse cage windings, outermost mouse cage winding is that low rate start operation winding mouse bar area and a fast winding coupling mouse bar are adopted alloy aluminum and had starting resistance, two cover three cover mouse cage windings are change and work respectively with stator current, mouse strip material preferably adopts red copper, temperature of rotor has also reduced, and the many threephase asynchronouses of high and medium power speed change of arranging in pairs or groups so have just been successful on the whole.
In the present invention, casing is provided with heat dissipation ventilation road from outside to inside.Motor obtains and depends on temperature useful life, optimum temperature≤50 ℃, and casing is provided with heat dissipation ventilation road from outside to inside, is provided with electric fan motor and forces cold wind to dispel the heat outward.Stator winding many places are provided with thermoswitch and shield, and motor can increase the service life and bring into play maximal efficiency like this, can reach again the effect of economize on electricity.
The first embodiment
Following NM corresponding motor partly adopts prior art.
Many mouse cages of high and medium power speed change threephase asynchronous of the present embodiment is 4/6/12/32 four-speed threephase asynchronous, its power respectively correspondence is 32KW/30KW/17.5KW/5.4KW, its seat No. is 225, stator core slot number is 72 grooves, stator winding is comprised of main winding and auxiliary winding, and lead riser is for 15.
As shown in Figure 1, main winding is the fast winding of 4/32 utmost point two, and it is 2 △/Y connection.Auxiliary winding is 6/12 utmost point, and it is 2Y/ delta connection, and following table 1 is 4/6/12/32 utmost point four-speed winding permutation table.Seat No. is 225.
Table 1
| Groove number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 4 utmost points | u | v | w | v | w | u | w | u | v | u | v |
| 6 utmost points | u | u | u | u | w | w | w | w | v | v | v |
| 12 utmost points | u | u | u | u | w | w | w | w | v | v | v |
| 32 utmost points | u | v | w | v | w | u | w | u | v | u | v |
| Groove number | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| 4 utmost points | v | u | u | u | u | w | w | w | w | v | v |
| 6 utmost points | v | v | u | u | u | u | w | w | w | w | v |
| 12 utmost points | v | w | u | u | u | u | w | w | w | w | v |
| 32 utmost points | w | v | w | u | w | u | v | u | v | w | v |
| Groove number | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |
| 4 utmost points | w | u | w | u | v | u | v | w | v | w | u |
| 6 utmost points | v | v | v | u | u | u | u | w | w | w | w |
| 12 utmost points | v | v | v | u | u | u | u | w | w | w | w |
| 32 utmost points | w | u | w | u | v | u | v | w | v | w | u |
| Groove number | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 |
| 4 utmost points | w | u | v | u | v | w | v | w | u | w | u |
| 6 utmost points | v | v | v | v | u | u | u | u | w | w | w |
| 12 utmost points | v | v | v | v | u | u | u | u | w | w | w |
| 32 utmost points | w | u | v | u | v | w | v | w | u | w | u |
| Groove number | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 |
| 4 utmost points | v | u | v | w | v | w | u | w | u | v | u |
| 6 utmost points | v | v | v | v | u | u | u | u | w | w | w |
| 12 utmost points | v | v | v | v | u | u | u | u | w | w | w |
| 32 utmost points | v | u | v | w | v | w | u | w | u | v | u |
| Groove number | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 |
| 4 utmost points | v | w | v | w | u | w | u | v | u | v | w |
| 6 utmost points | w | v | v | v | v | u | u | u | u | w | w |
| 12 utmost points | w | v | v | v | v | u | u | u | u | w | w |
| 32 utmost points | v | w | v | w | u | w | u | v | u | v | w |
| Groove number | 67 | 68 | 69 | 70 | 71 | 72 | |||||
| 4 utmost points | v | w | u | w | u | v | |||||
| 6 utmost points | w | w | v | v | v | v | |||||
| 12 utmost points | w | w | v | v | v | v | |||||
| 32 utmost points | v | w | u | w | u | v |
As shown in Figure 2, be rotor punching schematic diagram, flute profile, groove are joined according to stator punching and are designed to three mouse cage 58 grooves, the impulse current in the time of effectively reducing like this 4/6/12/32 utmost point gearshift.
Stator winding is the outside connection of head and the tail connection in series-parallel.
The present embodiment can also replace 200 supports to realize with 225,250,280,315 or 355 supports.
The second embodiment
Many mouse cages of high and medium power speed change threephase asynchronous of the present embodiment is 4/,6/8,/12,/48 5 fast threephase asynchronouses, its power respectively correspondence is 110KW/75KW/75KW/52KW/15KW, its seat No. is 355, stator core slot number is 108 grooves, stator winding is comprised of a set of main winding and two cover auxiliary winding, 16-27 altogether of lead riser.
Main winding is the fast winding of 4/6/8 utmost point three shown in Fig. 1, and it is 2Y/2 △/2 △ or 2Y/2Y/2Y connection.
Auxiliary winding is the fast winding of 12/48 utmost point two shown in Fig. 1, and it is 4Y/2Y connection.
Following table 2 is the fast winding permutation table of 4/6/8/12/48 utmost point five.
Table 2
| Groove number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 4 utmost points | u | u | u | u | u | u | u | u | u | w | w | w | w |
| 6 utmost points | u | u | u | u | u | u | u | u | u | w | w | w | w |
| 8 utmost points | u | u | u | u | u | u | u | u | u | w | w | w | w |
| 12 utmost points | u | v | u | w | u | w | v | w | v | u | v | u | w |
| 48 utmost points | u | v | u | w | u | w | v | w | v | u | v | u | w |
| Groove number | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| 4 utmost points | w | w | w | w | w | v | v | v | v | v | v | v | v |
| 6 utmost points | w | w | w | w | w | v | v | v | v | v | v | v | v |
| 8 utmost points | w | w | w | w | w | v | v | v | v | v | v | v | v |
| 12 utmost points | u | w | v | w | v | u | v | u | w | u | w | v | w |
| 48 utmost points | u | w | v | w | v | u | v | u | w | u | W | v | w |
| Groove number | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |
| 4 utmost points | v | u | u | u | u | u | u | u | u | u | w | w | w |
| 6 utmost points | v | u | u | u | u | u | u | u | u | u | w | w | w |
| 8 utmost points | v | u | u | u | u | u | u | u | u | u | w | w | w |
| 12 utmost points | v | u | v | u | w | u | w | w | v | u | v | u | w |
| 48 utmost points | v | u | v | u | w | u | w | w | v | u | v | u | w |
| Groove number | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 |
| 4 utmost points | w | w | w | w | w | w | v | v | v | v | v | v | v |
| 6 utmost points | w | w | w | w | w | w | v | v | v | v | v | v | v |
| 8 utmost points | w | w | w | w | w | w | v | v | v | v | v | v | v |
| 12 utmost points | u | w | v | w | v | u | v | u | w | u | w | v | w |
| 48 utmost points | u | w | v | w | v | u | v | u | w | u | w | v | w |
| Groove number | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 |
| 4 utmost points | v | v | u | u | u | u | u | u | u | u | u | w | w |
| 6 utmost points | v | v | u | u | u | u | u | u | u | u | u | w | w |
| 8 utmost points | v | v | u | u | u | u | u | u | u | u | u | w | w |
| 12 utmost points | v | u | v | u | w | v | u | w | v | w | v | u | v |
| 48 utmost points | v | u | v | u | w | v | u | w | v | w | v | u | v |
| Groove number | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 |
| 4 utmost points | w | w | w | w | w | w | w | v | v | v | v | v | v |
| 6 utmost points | w | w | w | w | w | w | w | v | v | v | v | v | v |
| 8 utmost points | w | w | w | w | w | w | w | v | v | v | v | v | v |
| 12 utmost points | u | w | u | w | v | w | v | u | v | u | w | u | w |
| 48 utmost points | u | w | u | w | v | w | v | u | v | u | w | u | w |
| Groove number | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 |
| 4 utmost points | v | v | v | u | u | u | u | u | u | u | u | u | w |
| 6 utmost points | v | v | v | u | u | u | u | u | u | u | u | u | w |
| 8 utmost points | v | v | v | u | u | u | u | u | u | u | u | u | w |
| 12 utmost points | v | w | v | u | v | u | w | u | v | w | v | w | v |
| 48 utmost points | v | w | v | u | v | u | w | u | v | w | v | w | v |
| Groove number | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 |
| 4 utmost points | w | w | w | w | w | w | w | w | v | v | v | v | v |
| 6 utmost points | w | w | w | w | w | w | w | w | v | v | v | v | v |
| 8 utmost points | w | w | w | w | w | w | w | w | v | v | v | v | v |
| 12 utmost points | v | v | u | w | u | w | v | w | v | u | v | u | w |
| 48 utmost points | v | v | u | w | u | w | v | w | v | u | v | u | w |
| Groove number | 105 | 106 | 107 | 108 | |||||||||
| 4 utmost points | v | v | v | v |
| 6 utmost points | v | v | v | v | |||||||||
| 8 utmost points | v | v | v | v | |||||||||
| 12 utmost points | u | w | v | w | |||||||||
| 48 utmost points | u | w | v | w |
The 3rd embodiment
Many mouse cages of high and medium power speed change threephase asynchronous of the present embodiment is 4/6/10/40 four-speed threephase asynchronous, its power respectively correspondence is 60KW/40KW/40KW/6.5KW, its seat No. is 250, stator core slot number is 90 grooves, stator winding is comprised of a set of main winding and two cover auxiliary winding, lead riser 16-27.
Following table 3 is 4/6/10/40 utmost point four-speed winding permutation table.
Table 3
| Groove number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 4 utmost points | u | u | u | u | u | u | u | w | w | w | w | w | w |
| 6 utmost points | u | u | u | u | u | u | u | w | w | w | w | w | |
| 10 utmost points | u | u | w | w | v | v | u | u | w | w | v | v | u |
| 40 utmost points | u | u | w | w | v | v | u | u | w | w | v | v | u |
| Groove number | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| 4 utmost points | w | v | v | v | v | v | v | v | v | v | u | u | u |
| 6 utmost points | v | v | v | w | w | w | |||||||
| 10 utmost points | u | w | w | v | v | u | u | w | w | v | v | u | u |
| 40 utmost points | u | w | w | v | v | u | u | w | w | v | v | u | u |
| Groove number | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |
| 4 utmost points | u | u | u | u | w | w | w | w | w | w | w | v | v |
| 6 utmost points | v | v | v | v | u | u | u | u | u | u | u | w | |
| 10 utmost points | w | w | v | v | u | u | w | w | v | v | u | u | w |
| 40 utmost points | w | w | v | v | u | u | w | w | v | v | u | u | w |
| Groove number | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 |
| 4 utmost points | v | v | v | v | v | u | u | u | u | u | u | u | u |
| 6 utmost points | w | w | w | v | v | v | w |
| 10 utmost points | w | v | v | u | u | w | w | v | v | u | u | w | w |
| 40 utmost points | w | v | v | u | u | w | w | v | v | u | u | w | w |
| Groove number | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 |
| 4 utmost points | u | w | w | w | w | w | w | w | v | v | v | v | v |
| 6 utmost points | w | w | v | v | v | v | u | u | u | u | |||
| 10 utmost points | v | v | u | u | w | w | v | v | u | u | w | w | v |
| 40 utmost points | v | v | u | u | w | w | v | v | u | u | w | w | v |
| Groove number | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 |
| 4 utmost points | v | v | u | u | u | u | u | u | u | w | w | w | w |
| 6 utmost points | u | u | u | w | w | w | w | v | v | v | |||
| 10 utmost points | v | u | u | w | w | v | v | u | u | w | w | v | v |
| 40 utmost points | v | u | u | w | w | v | v | u | u | w | w | v | v |
| Groove number | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | |
| 4 utmost points | w | w | w | w | w | v | v | v | v | v | v | v | |
| 6 utmost points | w | w | w | v | v | v | |||||||
| 10 utmost points | u | u | w | w | v | v | u | u | w | w | v | v | |
| 40 utmost points | u | u | w | w | v | v | u | u | w | w | v | v |
The present embodiment can also replace 250 supports to realize with 225,280,315,355 or 400 supports.
The invention is not restricted to above-described embodiment, those of ordinary skill in the art can carry out multiple combination to major-minor winding according to foregoing and form multispeed electric machine, such as usining the winding shown in Fig. 1, do as major-minor winding, form 4/6/8/32 utmost point or 4/6/12/48 four-speed motor; Also the winding shown in Fig. 1 of can usining is done as major-minor winding, forms 4/6/10/32 utmost point or 4/6/8/12/48 utmost point.
Claims (9)
1. many mouse cages of high and medium power speed change threephase asynchronous, be provided with stator, rotor, axle, support, stator is provided with stator core and stator winding, and rotor is provided with rotor core, it is characterized in that described stator winding is two covers, wherein part winding adopts outside connection and disconnects short circuit and connects.
2. many mouse cages of high and medium power speed change threephase asynchronous according to claim 1, is characterized in that described two cover stator winding are 2Y/ △, 4Y/2 △, 2Y/Y, 4Y/2Y, 4Y/3Y or 2Y/2 △/2 △, 4Y/4Y/4Y connection.
3. many mouse cages of high and medium power speed change threephase asynchronous according to claim 1, is characterized in that described stator double winding is 4/6/8/32 utmost point, 4/6/12/32 utmost point, 4/6/10/40 utmost point or 4/6/8/12/48 utmost point.
4. many mouse cages of high and medium power speed change threephase asynchronous according to claim 1, the model that it is characterized in that described support is 200,225,250,280,315,355 or 400.
5. many mouse cages of speed change threephase asynchronous according to claim 1 and 2, the groove number that it is characterized in that described stator core and rotor core is 72,90 or 108 grooves.
6. many mouse cages of high and medium power speed change threephase asynchronous according to claim 1 and 2, is characterized in that the outer diameter D of described stator core is: D=Φ * 102～106%, described Φ is 327mm, 368mm, 400mm, 423mm, 493mm or 560mm.
7. many mouse cages of high and medium power speed change threephase asynchronous according to claim 1 and 2, is characterized in that the non-parallel tooth height H of described stator core is: H=b
t*0.3～0.6, described b
tfor 4.5mm～6mm, 4.5mm～6mm, 5mm～7mm, 4.5mm～9mm, 5mm～11mm or 5.5mm～12mm.
8. many mouse cages of high and medium power speed change threephase asynchronous according to claim 1 and 2, is characterized in that mouse cage, the mouse number of rings of described rotor is more than two.
9. many mouse cages of high and medium power speed change threephase asynchronous according to claim 1 and 2, is characterized in that described support is provided with heat dissipation ventilation road.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374876.3A CN103701284B (en) | 2012-09-27 | High and medium power speed change many mouse cages threephase asynchronous |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374876.3A CN103701284B (en) | 2012-09-27 | High and medium power speed change many mouse cages threephase asynchronous |
Publications (2)
| Publication Number | Publication Date |
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| CN103701284A true CN103701284A (en) | 2014-04-02 |
| CN103701284B CN103701284B (en) | 2016-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015208102A (en) * | 2014-04-18 | 2015-11-19 | 株式会社三井三池製作所 | triple squirrel-cage induction motor |
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