CN107086697A - The New-type electric machine of mechanical loss is reduced by reducing seat No. - Google Patents
The New-type electric machine of mechanical loss is reduced by reducing seat No. Download PDFInfo
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- CN107086697A CN107086697A CN201710473493.4A CN201710473493A CN107086697A CN 107086697 A CN107086697 A CN 107086697A CN 201710473493 A CN201710473493 A CN 201710473493A CN 107086697 A CN107086697 A CN 107086697A
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- 239000000203 mixture Substances 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 21
- 230000005611 electricity Effects 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The New-type electric machine of mechanical loss is reduced by reducing seat No..A kind of that the New-type electric machine of mechanical loss is reduced by reducing seat No., its composition includes:Motor shaft, described motor shaft passes through rotor core, described rotor core connection permanent magnet, described rotor core passes through stator core, described stator core branch sleeve, described sleeve connection support, the bottom of described support is provided with a connecting hole and No. two connecting holes, the distance between a described connecting hole and No. two described connecting holes are 406mm, described support connection drive end bearing bracket, described motor shaft passes through described drive end bearing bracket, and the distance between the center line of described motor shaft and described bottom of support are 315 mm.The present invention is used for 110kw/3000rpm motors.
Description
Technical field：
The New-type electric machine of mechanical loss is reduced by reducing seat No. the present invention relates to a kind of.
Background technology：
For a long time, magneto is with its superior performance, by optimization design, relatively common asynchronous machine, and its economize on electricity reaches
One considerable level.But power-saving Retrofit only all in most cases, is carried out to 4,6,8 pole motors, without to 2 poles
3000rpm motors carry out power-saving Retrofit.Its reason is not economized on electricity or economized on electricity with respect to asynchronous machine by test, 2 pole 3000rpm motors
Seldom, so few carry out reducing energy consumption to 2 pole synchronous rotational speeds for 3000rpm asynchronous machine.
And in commercial Application environment, the blower fan water pump largely used is all 2 pole pumps, and motor is all to be poorly efficient different
Motor is walked, so as to cause the waste of electric energy.
Due to asynchronous machine（Also referred to as induction machine）Rotor field be by stator field sense set up, so being
Ensure the sufficient amount of magnetic energy of sensing, rotor surface area needs enough big, and the rotor that this results in asynchronous machine is thicker, and with
Lower formula：
P=kCf Л ρ ω 3r2r2L
Above formula：P is the loss due to air drag in rotor surface formation when rotor is rotated, and k is rotor surface roughness, is
1.05, Cf be windage coefficient, and Л is pi, and ρ is atmospheric density, and ω is motor angular velocity, and r is rotor radius, and L is electricity
Machine core length.
The Л n of angular velocity omega=2（N is motor speed）.
Can be seen that by above formula, the loss of the rotor surface of motor and the rotating speed of motor into 3 power relations, so for more than
1500 turns of higher speed motor, the shared institute of mechanical loss is lossy（Copper loss, iron loss, added losses, mechanical loss）Ratio more
Greatly, for asynchronous machine, mechanical loss amount has contained all above-mentioned losses.And rotor surface windmill is lost, motor is accounted for
Mechanical loss more than 70%, if the reduction rotor surface loss so the magneto of higher speed is not tried every possible means, is unable to reach section
The purpose that can be lowered consumption.
The content of the invention：
It is an object of the invention to provide one kind by reducing root diameter, the rotor surface that 3000rpm motors are greatly lowered is empty
Gas frictional dissipation, thus reduce motor overall mechanical loss the New-type electric machine of mechanical loss is reduced by reducing seat No..
Above-mentioned purpose is realized by following technical scheme：
A kind of that the New-type electric machine of mechanical loss is reduced by reducing seat No., its composition includes:Motor shaft, described motor shaft
Through rotor core, described rotor core connection permanent magnet, described rotor core passes through stator core, described stator iron
Core branch sleeve, described sleeve connection support, the bottom of described support is provided with a connecting hole and No. two connecting holes, described
The distance between a connecting hole and described No. two connecting holes be 406mm, described support connection drive end bearing bracket, described electricity
Arbor passes through described drive end bearing bracket, and the distance between the center line of described motor shaft and described bottom of support are 315
mm。
Described reduces the New-type electric machine of mechanical loss, described drive end bearing bracket and described motor by reducing seat No.
Connected between axle by front-end bearing pedestal, described front-end bearing pedestal is built with fore bearing, and the front end of described motor shaft extends to institute
The outside for the front-end bearing pedestal stated, the front end of described motor shaft is provided with preceding keyway.
Described reduces the New-type electric machine of mechanical loss, described support connection rear end cap, institute by reducing seat No.
Connected between the rear end cap stated and described motor shaft by rear bearing block, described rear bearing block is described built with rear bearing
The rear end of motor shaft extend to the outside of described rear bearing block, the rear end of described motor shaft is provided with rear keyway, described
The rear end connection fan of motor shaft.
Described reduces the New-type electric machine of mechanical loss by reducing seat No., and described motor shaft includes main shaft, institute
The main shaft stated passes through described rotor core, and described main shaft is fixedly connected with preceding multi-diameter shaft, and described preceding multi-diameter shaft is fixedly connected
Preceding outrigger shaft, described preceding multi-diameter shaft passes through described fore bearing, and the described front-end bearing pedestal of described preceding multi-diameter shaft connection is described
Preceding outrigger shaft be provided with described preceding keyway；Described main shaft is fixedly connected with rear multi-diameter shaft, and described rear multi-diameter shaft is fixedly connected
The axle of ladder two afterwards, the described axle of rear ladder two is fixedly connected with the rear axle of ladder three, and the described axle of rear ladder three extends after being fixedly connected
Axle, described rear outrigger shaft is fixedly connected with tailing axle, and described rear outrigger shaft is all connected with described fan with described tailing axle, described
Tailing axle be provided with described rear keyway.
Described reduces the New-type electric machine of mechanical loss by reducing seat No., and the described axle of rear ladder three passes through rear axle
Hold, the described axle of rear ladder two is all connected with rear bearing block with described rear outrigger shaft.
Described reduces the New-type electric machine of mechanical loss, described preceding multi-diameter shaft and described one by reducing seat No.
The distance between number connecting hole is 216 ± 4.0mm,
Described reduces the New-type electric machine of mechanical loss by reducing seat No., leads between described drive end bearing bracket and front-end bearing pedestal
Cross screw to fix, fixed between described rear end cap and rear bearing block by screw, described rear end cap and described support it
Between fixed by horizontal screw, described rear end cap connection trip bolt, described trip bolt is locked described horizontal screw.
It is described to reduce the New-type electric machine of mechanical loss by reducing seat No., the outer diameter D 1 of described stator core=
327mm, internal diameter Di1=182mm of described stator core, 2=179.4mm of outer diameter D of rotor core, the length L of rotor core=
260mm。
Beneficial effect：
1. the present invention is calculated according to formula P=kCf Л ρ ω 3r2r2L,（Former Y2 stator cores external diameter is in D1=520mm, stator
Footpath Di1=300mm rotor diameters D2=297mm, core length L=250；）, 1=327mm of outer diameter D of stator core, stator core
Internal diameter Di1=182mm, 2=179.4mm of outer diameter D of rotor core, length L=260mm of rotor core.
Number of stator slots presses 42 grooves, and 4 poles design, skewed slot is reduced to 0.5 groove, skewed slot leakage reactance by original oblique 1.25 groove of Y2 motors
Reduction, while span is 9 short distance windings, harmonic content is greatly decreased.
Asynchronous machine loss reaches 2523W, and magneto loss only has 349W, reduces 2174W losses, only this item is just
Efficiency (1-110/ (110+2.174)) * 100%=1.93% is improved, if added because rotor weight reduction damages bearing friction
The decline of consumption, efficiency will improve 2.6% or so.
Other performance is above Y2 serial motors simultaneously, is below the table of comparisons, wherein listing the economize on electricity under four kinds of operating modes
Rate：
| Title | Asynchronous machine | Magneto | Remarks and contrast |
| Rated efficiency | 94% | 97.5% | Amount efficiency improves 3.5% |
| Efficiency during 85% load | 88.3% | 97.3% | Active power saving rate 9.25% |
| Efficiency during 70% load | 85.5% | 97.1% | Active power saving rate 11.9% |
| Efficiency during 60% load | 81.4% | 96.8% | Active power saving rate 15.9% |
| Efficiency during 50% load | 76.6% | 96.1% | Active power saving rate 20.3% |
| Power factor | 0.9 | 0.97 | Idle economize on electricity more than 20% |
| Rated current A | 195 | 180 | Current reduction more than 7.7% |
| Thermic load A^2/mm^3 | 135 | 128 | Temperature rise reduces by 20 degree |
| Overload magnification | 2 | 2.2 | Superpower overload capacity |
| Rotor diameter mm | 297 | 179.4 | Reduce 39.6% |
| Rotor weight kg | 130 | 49 | Reduce 62.3% |
| Whole iron core weight kg | 403.5 | 165.9 | Reduce 58.9% |
| Copper weight kg | 48 | 33 | Reduce 31.3% |
| Permanent magnet kg | 0 | 5 | Increase by 100% |
| Aluminium and other kg | 4.8 | 0 | Reduce 100% |
It can be seen that from upper table, not only rotor diameter significantly reduces, the loss reduction of rotor windmill caused, while showing iron in table
Core is reduced, and motor iron loss is also accordingly reduced（Iron loss is directly proportional to core section product）, motor is situation about being reduced in fixed loss
Under improve efficiency（Fixed loss=mechanical loss+iron loss）, motor is economized on electricity in the case where load is relatively low more significantly, solution
Asynchronous machine determined the problem of efficiency is lower in the case that load is relatively low.
From cost angle, although permagnetic synchronous motor adds the use of permanent magnet, but the silicon steel plate used due to iron core
It is greatly decreased（The less silicon steel sheet of Unit Weight iron loss is also used simultaneously）, copper, which is also used, reduces nearly 1/3, and without aluminium, it is comprehensive
Cost is calculated, cost also reduces 10% or so than asynchronous machine（About 320 yuan/kg of permanent magnet）.
Brief description of the drawings：
Accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is stator sectional drawing in accompanying drawing 1.
Accompanying drawing 3 is rotor sectional drawing in accompanying drawing 1.
Accompanying drawing 4 is iron core and coil 3D figures in accompanying drawing 1.
Accompanying drawing 5 is dimensional drawing in accompanying drawing 1.
Embodiment：
Below in conjunction with the accompanying drawing of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Embodiment 1：
A kind of that the New-type electric machine of mechanical loss is reduced by reducing seat No., its composition includes:110kw/3000rpm motors,
Described 110kw/3000rpm motors have motor shaft, and described motor shaft passes through rotor core 1, and described rotor core connects
Permanent magnet 27 is connect, described rotor core passes through stator core 2, described stator core branch sleeve 3, described sleeve connection
Support 4, the bottom of described support is provided with a connecting hole 5 and No. two connecting holes 6, a described connecting hole and described two
The distance between number connecting hole is 406mm, and described support connection drive end bearing bracket 7, described motor shaft passes through described drive end bearing bracket,
The distance between the center line of described motor shaft and the described bottom of support are 315 mm.
Described reduces the New-type electric machine of mechanical loss, described drive end bearing bracket and described motor by reducing seat No.
Connected between axle by front-end bearing pedestal 8, described front-end bearing pedestal is built with fore bearing 9, and the front end of described motor shaft is extended to
The outside of described front-end bearing pedestal, keyway 10 before the front end of described motor shaft is provided with.
Described reduces the New-type electric machine of mechanical loss by reducing seat No., and described support connects rear end cap 11,
Connected between described rear end cap and described motor shaft by rear bearing block 12, described rear bearing block is built with rear bearing
13, the rear end of described motor shaft extends to the outside of described rear bearing block, and the rear end of described motor shaft is provided with rear keyway
14, the rear end of described motor shaft connects fan 15.
Described reduces the New-type electric machine of mechanical loss by reducing seat No., and described motor shaft includes main shaft 16,
Described main shaft passes through described rotor core, and described main shaft is fixedly connected with preceding multi-diameter shaft 17, and described preceding multi-diameter shaft is fixed
Outrigger shaft 18 before connection, described preceding multi-diameter shaft passes through described fore bearing, the described fore bearing of described preceding multi-diameter shaft connection
Seat, described preceding outrigger shaft is provided with described preceding keyway；Described main shaft is fixedly connected with rear multi-diameter shaft 19, described rear multi-diameter shaft
The rear axle 20 of ladder two is fixedly connected with, the described axle of rear ladder two is fixedly connected with the rear axle 21 of ladder three, and the described axle of rear ladder three is consolidated
Outrigger shaft 22 after fixed connection, described rear outrigger shaft is fixedly connected with tailing axle 23, and described rear outrigger shaft connects with described tailing axle
Described fan is connect, described tailing axle is provided with described rear keyway.
Described reduces the New-type electric machine of mechanical loss by reducing seat No., and the described axle of rear ladder three passes through rear axle
Hold, the described axle of rear ladder two is all connected with rear bearing block with described rear outrigger shaft.
Described reduces the New-type electric machine of mechanical loss, described preceding multi-diameter shaft and described one by reducing seat No.
The distance between number connecting hole is 216 ± 4.0mm,
Described reduces the New-type electric machine of mechanical loss by reducing seat No., leads between described drive end bearing bracket and front-end bearing pedestal
Cross screw 24 to fix, fixed between described rear end cap and rear bearing block by screw, described rear end cap and described support
Between fixed by horizontal screw 25, described rear end cap connection trip bolt 26, described trip bolt is locked described
Horizontal screw.
Embodiment 2：
The New-type electric machine of mechanical loss is reduced by reducing seat No. described in embodiment 1, the external diameter of described stator core
D1=327mm, the internal diameter Di1=182mm, 2=179.4mm of outer diameter D of rotor core, the length of rotor core of described stator core
Spend L=260mm.
Number of stator slots presses 42 grooves, and 4 poles design, skewed slot is reduced to 0.5 groove, skewed slot leakage reactance by original oblique 1.25 groove of Y2 motors
Reduction, while span is 9 short distance windings, harmonic content is greatly decreased.
Described reduces the New-type electric machine of mechanical loss by reducing seat No., and existing 2 pole 3000rpm is except influence
Having outside rotor roughness, atmospheric density and skin-friction coefficient for the loss of electric machine, is not only lost with motor speed into 3 power ratios,
Also simultaneously with rotor external diameter（R=D/2, D are root diameter）Into 4 power ratios, with rotor length into 1 power ratio, so significantly
Rotor volume is reduced, rotor diameter is particularly reduced, is that loss is greatly decreased is directly also maximally effective approach, meanwhile, body
Long-pending reduction also makes the weight reduction of rotor and reduces dead load, the moment of friction of bearing is also functioned to the effect of reduction.
But for electromagnetic point, because rotor carries the magnetic potential in rotor formation magnetic field, so needing certain magnetic conduction
Area, rotor volume is too small to cause magnetic potential be able to not can set up or not enough, and motor will be caused not reach required power and moment of torsion.
So the size of rotor not only determines the size of loss, also closely related with electromagnetism intensity, the two contradiction each other.
And the structure type of magneto is taken, above-mentioned contradiction can be solved well.A permagnetic synchronous motor is designed, by
Rare-earth permanent magnet is installed in permanent magnet machine rotor, is energy-storage travelling wave tube, the magnetic field that N, S are interspersed can be naturally occurred, it is stable
The characteristic of high energy product be supplied to rotor-exciting without motor stator, in this way, stator volume can be greatly decreased, rotor also phase
It should reduce, diameter reduces, and reaches above-mentioned purpose.
The New-type electric machine of mechanical loss is reduced by reducing seat No. described in example, due to 110kw/3000rpm electricity
Machine is used in blower fan, the industrial environment of water pump, then must according to industrial standard go to design and produce, and this example is implemented to use national standard
GB/T997-2003《Rotary motor configuration and installation approach (IM code names)》With machine mark JB/T8680《Y2 series (IP54) three-phases
Asynchronous motor technical conditions (seat No. 63~355)》, using Y2 standards support and end cap, its reason is that one is easy to purchase,
Have again is to be directed to be easier to install using department.
Serial 110kw/3000rpm uses 315S supports, then permagnetic synchronous motor also selects 315S supports.Due to 315S machines
Seat internal diameter（Install and coordinate with iron core external diameter）For 520mm, the magneto external diameter 327mm designed much larger than this patent, in fact,
327mm external diameters iron core is 200 supports, and 315 supports are to 4 seat No. that have been small between 200, to make small iron core coordinate big machine
Seat, and consider the factors such as radiating, complete to assemble using in centre plus cast iron sleeve.
Cast iron sleeve external diameter 520mm, is interference fitted, cast iron sleeve internal diameter 327mm, with magneto iron core external diameter with support internal diameter
Interference fit, material HT200.
To ensure the driving torque of motor, although iron core reduces, but axle is still born by 110kw/3000rpm Motor torques
Shearing force check and approve.A diameter of 95mm of main shaft.
Claims (8)
1. a kind of reduce the New-type electric machine of mechanical loss by reducing seat No., its composition includes:Motor shaft, it is characterized in that:
Described motor shaft passes through rotor core, and described rotor core connection permanent magnet, described rotor core passes through stator core,
Described stator core branch sleeve, described sleeve connection support, the bottom of described support is provided with a connecting hole and two
Number connecting hole, the distance between a described connecting hole and No. two described connecting holes are 406mm, before described support connection
End cap, described motor shaft passes through described drive end bearing bracket, between the bottom of the center line of described motor shaft and described support
Distance be 315 mm.
2. according to claim 1 reduce the New-type electric machine of mechanical loss by reducing seat No., it is characterized in that:It is described
Drive end bearing bracket and described motor shaft between connected by front-end bearing pedestal, described front-end bearing pedestal is described built with fore bearing
The front end of motor shaft extends to the outside of described front-end bearing pedestal, and the front end of described motor shaft is provided with preceding keyway.
3. according to claim 1 reduce the New-type electric machine of mechanical loss by reducing seat No., it is characterized in that:It is described
Support connection rear end cap, connected between described rear end cap and described motor shaft by rear bearing block, described rear bearing
Seat is built with rear bearing, and the rear end of described motor shaft is extended to after the outside of described rear bearing block, described motor shaft
End is provided with rear keyway, and the rear end of described motor shaft connects fan.
4. the New-type electric machine of mechanical loss is reduced by reducing seat No. according to claim 1 or 2 or 3, its feature
It is:Described motor shaft includes main shaft, and described main shaft passes through described rotor core, and described main shaft is fixedly connected with preceding rank
Terraced axle, described preceding multi-diameter shaft is fixedly connected with preceding outrigger shaft, and described preceding multi-diameter shaft passes through described fore bearing, described preceding rank
The described front-end bearing pedestal of terraced axle connection, described preceding outrigger shaft is provided with described preceding keyway；Described main shaft is fixedly connected with rear rank
Terraced axle, described rear multi-diameter shaft is fixedly connected with the rear axle of ladder two, and the described axle of rear ladder two is fixedly connected with the rear axle of ladder three, described
The axle of rear ladder three be fixedly connected with rear outrigger shaft, described rear outrigger shaft is fixedly connected with tailing axle, described rear outrigger shaft with it is described
Tailing axle be all connected with described fan, described tailing axle is provided with described rear keyway.
5. according to claim 4 reduce the New-type electric machine of mechanical loss by reducing seat No., it is characterized in that:Institute
The axle of rear ladder three stated passes through rear bearing, and the described axle of rear ladder two is all connected with rear bearing block with described rear outrigger shaft.
6. according to claim 4 reduce the New-type electric machine of mechanical loss by reducing seat No., it is characterized in that:It is described
The distance between preceding multi-diameter shaft and a described connecting hole be 216 ± 4.0mm.
7. according to claim 1 reduce the New-type electric machine of mechanical loss by reducing seat No., it is characterized in that:It is described
Drive end bearing bracket and front-end bearing pedestal between fixed by screw, fixed between described rear end cap and rear bearing block by screw, institute
Fixed between the rear end cap stated and described support by horizontal screw, described rear end cap connection trip bolt, described fastening
Screw lock fixes described horizontal screw.
8. according to claim 1 reduce the New-type electric machine of mechanical loss by reducing seat No., it is characterized in that:Institute
Outer diameter D 1=the 327mm for the stator core stated, internal diameter Di1=182mm of described stator core, the outer diameter D 2 of rotor core=
179.4mm, length L=260mm of rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710473493.4A CN107086697B (en) | 2017-06-21 | 2017-06-21 | Novel motor capable of reducing mechanical loss by reducing base number |
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| CN201710473493.4A CN107086697B (en) | 2017-06-21 | 2017-06-21 | Novel motor capable of reducing mechanical loss by reducing base number |
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| CN107086697B CN107086697B (en) | 2024-02-09 |
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| US20040155537A1 (en) * | 2001-12-20 | 2004-08-12 | Masatsugu Nakano | Permanent magnet type dynamo-electric machine and permanent magnet synchronous generator for wind power generation |
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| CN202068287U (en) * | 2011-03-21 | 2011-12-07 | 尚天德 | Wide voltage single-phase asynchronous motor |
| CN203788057U (en) * | 2014-04-02 | 2014-08-20 | 徐州苏煤矿山设备制造有限公司 | Explosive-proof energy saving motor |
| CN203840072U (en) * | 2014-05-14 | 2014-09-17 | 上海马拉松·革新电气有限公司 | Small-power high-voltage generator |
| CN105811614A (en) * | 2016-03-17 | 2016-07-27 | 重庆大学 | Rotor structure for high speed permanent magnet synchronous machine |
| CN106100220A (en) * | 2016-08-09 | 2016-11-09 | 中车株洲电机有限公司 | A kind of industrial motor, rotor and rotating shaft thereof |
| CN206908413U (en) * | 2017-06-21 | 2018-01-19 | 天津林元机械设备有限公司 | The New-type electric machine of mechanical loss is reduced by reducing seat No. |
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