CN105896835B - A kind of method and device for replacing external rotor electric machine bearing - Google Patents
A kind of method and device for replacing external rotor electric machine bearing Download PDFInfo
- Publication number
- CN105896835B CN105896835B CN201610436444.9A CN201610436444A CN105896835B CN 105896835 B CN105896835 B CN 105896835B CN 201610436444 A CN201610436444 A CN 201610436444A CN 105896835 B CN105896835 B CN 105896835B
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- bearing
- end cover
- electric machine
- external rotor
- rotor electric
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of method and device for replacing external rotor electric machine bearing, method includes disassembly, detection and assembly, wherein the demounting procedure includes: label；It dismantles for the first time；Bringing device；Judgement；Second of disassembly；Easy to damage, time-consuming and high-cost problem that this method solve components during motor bearings replacement adjustment.The invention also includes the end cap protection device in replacement process, cable bad, end cap problem on deformation in end cap disassembly are prevented.Quick-replaceable motor bearings prevents cable to be subject to crushing and extend the motor working time, using device external rotor electric machine bearing portion part is more bonded, bearing is hardly damaged deformation, easily replaces for motor bearings and provides guarantee.
Description
Technical field
The present invention relates to external rotor electric machine bearing technical field more particularly to a kind of methods for replacing external rotor electric machine bearing
And device.
Background technique
Paper injection belt motor is very important transmission device in paper industry.In paper making process, paper injection belt
Paper web is transitted to next workshop section from workshop section's guidance when paper injection again after disconnected paper for paper machine by motor, is continued
Lower one of production process.When paper injection belt motor occurs abnormal, will lead to paper web can not be transitioned into next workshop section, directly make
It can not be produced at paper machine.It can be said that paper injection belt motor plays a brought forward after important function that is rear, forming a connecting link.
The paper injection belt motor installed online between paper locomotive, paper machine, which was switched on to 2016, have been run for many years, starts electricity occur
The stuck exception of machine bearing, since paper injection belt motor is that outer rotor high-speed rotary motor (i.e. fix, stator high speed by rotor
The special machines of rotation；And common motor is fixed for stator, rotor rotation), the motor that furthermore our factory uses, rotor high speed is revolved
The rated speed of rotating motor is 7980 revs/min.Its external rotor electric machine bearing is during replacement easily to cut cable and motor
End cap damages, gasket does not meet the problems such as bearing installation and service life are short.Therefore breakthrough and innovation attempts new step replacement
Method voluntarily replaces the bearing of such external rotor electric machine using more changing device.
Summary of the invention
In view of this, solving outer rotor the present invention provides a kind of method and device for replacing external rotor electric machine bearing
Motor bearings be not easy to replace, the problem of end cap and cable are easy to damage, gasket does not meet bearing installation and replacement large labor intensity.
The technological means that the present invention uses is as follows:
A method of replacement external rotor electric machine bearing, including disassembly, detection and assembly, wherein the demounting procedure packet
It includes:
Label: label first end cover；
It dismantles for the first time: the inside and outside circlip of shield oil cap in disassembly bearing chamber.
Bringing device: drawing code is the tool for dismantling first end cover, and the drawing code includes main drawing code and screw rod, the master
It draws code to connect with screw flight, applies end cap protection device between first end cover and drawing code.
Judgement: judge first end cover and draw the spiro rod length between code whether consistent.
Second dismantles: when spiro rod length is consistent, apply paper core isolation disassembly on shield oil cap, by first end cover,
Rotor, stator and second end cover remove, when spiro rod length is inconsistent, nut on adjusting screw rod until spiro rod length is consistent,
Apply paper core isolation disassembly on shield oil cap, first end cover, rotor, stator and second end cover are removed.
Preferably, the end cap protection device includes support base, support column and top cover, one end of the support column with it is described
Support base connection, the other end of the support column are connected with the top cover, and the support base is equipped with through-hole, and the support column is sky
Heart pipe, the support column are communicated with the through-hole, and the wall surface of the support column is equipped with opening, and the top cover is equipped with groove.
Preferably, the detecting step includes:
Measurement: whether the bearing chamber for measuring first end cover deforms.
Correction: when bearing chamber deformation, turning correction is carried out in lathe, is corrected conversely, not having to turning.
Preferably, the installation step includes:
Installation: for installation first end cover in one end of stator, the rotor of cut cable penetrates stator, then installs second end cover fixed
The other end of son.
It is fixed: to use the rotor of the fixed cut cable of bearing fixing device.
Buckle: in shield oil cap position installation inner ring gasket and race gasket and block upper internal jump ring and outer circlip.
Preferably, in second of disassembly process of the demounting procedure, in second end cover and application hexagonal spiral shell between code is drawn
Bolt removes second end cover.
Preferably, in second of disassembly process of the demounting procedure, by spot welding iron block in rotor, iron block is tapped by rotor
It removes.
Preferably, the bearing fixing device includes pedestal and the connecting column that connect with pedestal, is set in the base center
There is bearing mouth.
Preferably, during the buckle of the installation step, the thickness of the inner ring gasket is greater than the race gasket
Thickness.
A kind of device for replacing external rotor electric machine bearing, including end cap protection device, the end cap protection device include branch
Support seat, support column and top cover, one end of the support column are connect with the support base, the other end of the support column and the top
Lid connection, the support base are equipped with through-hole, and the support column is hollow pipe, and the support column is communicated with the through-hole, the branch
The wall surface of dagger is equipped with opening, and the top cover is equipped with groove.
Preferably, the shape of the groove is positive hexagonal shape.
Using it is provided by the present invention it is a kind of replace external rotor electric machine bearing method and device, because electric motor end cap be it is pure not
It becomes rusty steel material, using drawing code replacement tool that can cause to deform because of percussion to avoid the end cap of motor bearings；It is protected and is filled using end cap
Setting prevents cable to be subject to crushing, and prevents end cap from deforming with drawing code to be used cooperatively；Because shield oil cap belongs to disposable product, damaged after removing
It is bad, it is substituted using bearing inner race gasket, bearing outer ring gasket；Using bearing installing tool, convenient, fast installation bearing and it is not easy
Cause damage of the bearing；So that the step of entirely replacing external rotor electric machine bearing is smooth, it is therefore prevented that cable during replacing bearing
It is subject to crushing, the problems such as service life is short after end cap is easily-deformable and replacement, so that the motor component after entire assembly is more bonded, saves
Resource and labor intensity.
Detailed description of the invention
Fig. 1 is a kind of method flow diagram for replacing external rotor electric machine bearing；
Fig. 2 is the structural schematic diagram of end cap protection device in a kind of method and device of replacement external rotor electric machine bearing；
Fig. 3 is a kind of structural schematic diagram of fixed device of the method and device middle (center) bearing for replacing external rotor electric machine bearing；
Fig. 4 is the structural schematic diagram of drawing code in a kind of method and device of replacement external rotor electric machine bearing.
Wherein: 1 disassembly, 11 labels, 12 dismantle for the first time, 13 bringing devices, 14 judgements, 15 second of disassembly, 2 detections,
21 measurements, 22 corrections, 3 assembly, 31 installations, 32 is fixed, 33 buckles；5 end cap protection devices, 101 support bases, 102 support columns,
103 top covers, 1021 openings, 1031 grooves；201 pedestals, 202 connecting columns；301 main drawing codes, 3011 open-works, 302 screw rods, 303 is convex
It rises.
Specific embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment 1:
External rotor electric machine bearing of the invention is commercially available external rotor electric machine bearing, and outer rotor motor shaft, which is contracted, includes first end
Lid, second end cover, stator, rotor, internal jump ring and outer circlip, stator both ends are connect with first end cover and second end cover respectively, the
Bearing chamber is equipped in one end cap, rotor is placed in stator, and rotor includes cable and bearing, and cable is placed in bearing, cut cable
Rotor penetrates stator, and cable is pierced by bearing chamber, and shield oil cap, the fixed shield oil cap of inside and outside circlip are equipped in bearing chamber.
As shown in Figures 1 to 4, a method of replacing external rotor electric machine bearing, including disassembly, detection and assembly, wherein institute
Stating demounting procedure includes:
Label: label first end cover.
It dismantles for the first time: the inside and outside circlip of shield oil cap in disassembly bearing chamber.
Bringing device: drawing code is the tool for dismantling first end cover, and the drawing code includes main drawing code 301 and is threadedly coupled
Screw rod 302, first end cover and draw code between apply end cap protection device.
Judgement: judge first end cover and draw the spiro rod length between code whether consistent.
Second dismantles: when spiro rod length is consistent, apply paper core isolation disassembly on shield oil cap, by first end cover,
Rotor, stator and second end cover remove, when spiro rod length is inconsistent, nut on adjusting screw rod until spiro rod length is consistent,
Apply paper core isolation disassembly on shield oil cap, first end cover, rotor, stator and second end cover are removed.
Wherein, in second of disassembly process of the demounting procedure, apply hex bolts between second end cover and drawing code
Second end cover is removed；By spot welding iron block in rotor, taps iron block and remove rotor.
The detecting step includes measuring: whether the bearing chamber of inner hole Centigrade scale measurement first end cover deforms；
Correction: when bearing chamber deformation, turning correction is carried out in lathe, is corrected conversely, not having to turning.
Wherein, further include whether the bearing position of miking rotor wears, when the abrasion of bearing position, calibrate the same of rotor
Heart degree carries out repair welding processing.Turning correction prevents some high point from squeezing bearing, and the bearing chamber size range value of first end cover is 62
±3μm.It needs to carry out cable protective before repair welding, prevents cable impaired, then the conducting wire of armature spindle is pulled out, eliminate high temperature damage
Bad, the concentricity of calibration rotor, otherwise non-machinable before repair welding processing, optimum size after processing be 35 ± 0.005-35 ±
0.01mm, can not be to having stuck point after on rotor bearing position, so that bearing life is reduced.
The installation step includes installing: for installation first end cover in one end of stator, the rotor of cut cable penetrates stator,
Second end cover is installed again in the other end of stator；
It is fixed: using the rotor of the fixed cut cable of bearing fixing device, the bearing fixing device include pedestal 201 and with
The connecting column 202 that pedestal 201 connects, 201 center of pedestal are equipped with bearing mouth (not shown), the bearing mouth and bearing
Match.
Buckle: in shield oil cap position installation inner ring gasket and race gasket and block upper internal jump ring and outer circlip, inner ring gasket
Thickness be greater than the thickness of race gasket so that the components compactness after assembly is closer, be able to extend that motor uses when
Between.
Wherein charge the assembling process of cable-end rotor are as follows: end cap is first attached to position before a, assembly, in end cap occlusion, is paid attention to
Seam allowance is not collided, to check that confirmation end cap seam allowance will be put down, no concave-convex, rotor needs to be correctly aligned stator seam allowance, while also wanting
Mark when control disassembly, can touch by hand hammer packing paper core pipe, and when percussion cannot be firmly excessive, prevent end cap from deforming, and
And it repeatedly diagonally to touch.B, electrification cable-end rotor is penetrated careful cable skin when stator pays attention to wearing cable after to be scratched, and is padded
Small one and large one two thickness are as follows: the inside and outside circle gasket of the bearing of 4.0mm.C, bearing is packed into end cap and be installed in place, use bearing
Installation tool is touched by hand hammer parallels block, fast installs bearing, and do not easily cause damage of the bearing.D, then pad one big one respectively
Small two thickness is respectively 4.2mm, the inside and outside circle gasket of 3.8mm, inside and outside two circlips on card.
The assembling process of non-electrical cable-end rotor are as follows: end cap is first attached to position before a, assembly, in end cap occlusion, is careful not to
Seam allowance is collided, to check that confirmation end cap seam allowance will be put down, no concave-convex is correctly aligned stator seam allowance, while the disassembly when institute that also to suit the medicine to the illness
It makes marks, can be touched by hand hammer packing paper core pipe, when percussion cannot be firmly excessive, prevents end cap from deforming, and repeatedly diagonal
Tapping.B, and upper one is padded with a thickness of 4.0mm bearing outer ring gasket.C, bearing is installed in place and pads upper one with a thickness of 4.2mm axis
Bearing outer-ring gasket, one with a thickness of 5.2-5.6mm bearing inner race gasket, block upper circlip respectively.
Wherein, the screw rod 302 for drawing code to include main drawing code 301 and be threadedly coupled, the main shape for drawing code 301 is length
The stereochemical structure of cube, the main both ends for drawing code 301 are equipped with open-work 3011, are equipped with protrusion at the main center for drawing code 301
303, the shape of the open-work 3011 is circle, and the open-work 3011 is threadedly coupled with screw rod 302, the internal diameter of the open-work 3011
For 1.4mm, the distance between 3011 center of circle of open-work is 99mm.
The internal diameter of the bearing inner race gasket is 34-36mm, outer diameter 40-42mm, with a thickness of 4mm or 4.2mm；The axis
The internal diameter of bearing outer-ring gasket is 54-56mm, outer diameter 60-62mm, with a thickness of 3.7-5.6mm.
Embodiment 2
The embodiment the difference from embodiment 1 is that, the detecting step includes:
Measurement: being measured using end cap depth gauge, the detection of measurement end cap seam allowance plane to bearing chamber plane depth；School
Just, when bearing chamber is worn, turning correction or replacement is carried out in lathe, is corrected conversely, not having to turning.
Embodiment 3
The embodiment the difference from embodiment 1 is that, the installation step includes: assembly rotor, and rotor is fitted into
One end cap；Assembling stator, by stator assembly outside rotor；Second end cover is assembled, the seam allowance of second end cover and stopping for stator are directed at
Mouth carries out gland.
Embodiment 4
The embodiment the difference from embodiment 1 is that, the detecting step includes:
Measurement: being measured using end cap depth gauge, the detection of measurement end cap seam allowance plane to bearing chamber plane depth；School
Just, when bearing chamber is worn, turning correction or replacement is carried out in lathe, is corrected conversely, not having to turning.
The installation step includes: assembly rotor, and rotor is fitted into first end cover；Assembling stator exists stator assembly
Outside rotor；Second end cover is assembled, the seam allowance of the seam allowance and stator that are directed at second end cover carries out gland.
Embodiment 5
As shown in Figure 2,4, a kind of device for replacing external rotor electric machine bearing, including end cap protection device 5, the end cap are protected
Protection unit 5 includes support base 101, support column 102 and top cover 103, and one end of the support column 102 and the support base 101 connect
It connects, the other end of the support column 102 is connect with the top cover 103, and the support base 101 is equipped with through-hole (not shown).Institute
The axial plane shape of the shape and bearing of stating through-hole matches, and plays fixed effect when end cap pulls out.The support column 102 is
Hollow pipe, the support column are communicated with the through-hole, and the wall surface of the support column 102 is equipped with opening 1021, and bearing penetrates logical
Hole, cable are pierced by aperture 1021 through hollow pipe.The top cover 103 is equipped with groove 1031.The shape of the groove 1031 is positive six
Side shape shape.The groove shapes match with protrusion 303 at the center for drawing code, and the support column 102 is movably connected in described
Between support base 101 and the top cover 103, so that cooperating with cable, prevents cable from wearing in end cap disassembly process, cause to fill
With the failures such as motor bearings after the completion is inoperative.
In conclusion using a kind of method and device for replacing external rotor electric machine bearing provided by the present invention, because of motor
End cap is pure stainless steel material, using drawing code replacement tool that can cause to deform because of percussion to avoid the end cap of motor bearings；It utilizes
End cap protection device prevents cable to be subject to crushing, and prevents end cap from deforming with drawing code to be used cooperatively；Because shield oil cap belongs to disposable product,
It damages after removing, is substituted using bearing inner race gasket, bearing outer ring gasket；Using bearing installing tool, convenient, fast installation
Bearing and do not easily cause damage of the bearing；So that the step of entirely replacing external rotor electric machine bearing is smooth, it is therefore prevented that in replacement bearing
After cable is subject to crushing in the process, end cap is easily-deformable and replacement the problems such as long service life, so that the motor component after entire assembly
It is more bonded, saves resource and labor intensity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (9)
1. a kind of method for replacing external rotor electric machine bearing, which is characterized in that including disassembly, detection and assembly, wherein described tear open
Unloading step includes:
Label: label first end cover；
It dismantles for the first time: the inside and outside circlip of shield oil cap in disassembly bearing chamber；
Bringing device: drawing code is the tool for dismantling first end cover, and the drawing code includes main drawing code and screw rod, the main drawing code
It is connected with screw flight, applies end cap protection device between first end cover and drawing code；
Judgement: judge first end cover and draw the spiro rod length between code whether consistent；
Second dismantles: when spiro rod length is consistent, apply paper core isolation disassembly on shield oil cap, by first end cover, rotor,
Stator and second end cover remove；When spiro rod length is inconsistent, the nut on adjusting screw rod is until spiro rod length is consistent, in shield oil
It covers and applies paper core isolation disassembly, first end cover, rotor, stator and second end cover are removed.
2. a kind of method for replacing external rotor electric machine bearing as described in claim 1, which is characterized in that the end cap protection dress
It sets including support base, support column and top cover, one end of the support column is connect with the support base, the other end of the support column
It is connected with the top cover, the support base is equipped with through-hole, and the support column is hollow pipe, the support column and the through-hole phase
Logical, the wall surface of the support column is equipped with opening, and the top cover is equipped with groove.
3. a kind of method for replacing external rotor electric machine bearing as described in claim 1, which is characterized in that the detecting step packet
It includes:
Measurement: whether the bearing chamber for measuring first end cover deforms；
Correction: when bearing chamber deformation, turning correction is carried out in lathe, is corrected conversely, not having to turning.
4. a kind of method for replacing external rotor electric machine bearing as described in claim 1, which is characterized in that the installation step packet
It includes:
Installation: for installation first end cover in one end of stator, the rotor of cut cable penetrates stator, then installs second end cover in stator
The other end；
It is fixed: to use the rotor of the fixed cut cable of bearing fixing device；
Buckle: in shield oil cap position installation inner ring gasket and race gasket and block upper internal jump ring and outer circlip.
5. a kind of method for replacing external rotor electric machine bearing as described in claim 1, which is characterized in that the demounting procedure
In second of disassembly process, applies hex bolts between second end cover and drawing code and remove second end cover.
6. a kind of method for replacing external rotor electric machine bearing as described in claim 1, which is characterized in that the demounting procedure
In second of disassembly process, by spot welding iron block in rotor, taps iron block and remove rotor.
7. a kind of method for replacing external rotor electric machine bearing as claimed in claim 4, which is characterized in that the fixed dress of the bearing
It sets including pedestal and the connecting column being connect with pedestal, the base center is equipped with bearing mouth.
8. a kind of method for replacing external rotor electric machine bearing as claimed in claim 4, which is characterized in that the installation step
During buckle, the thickness of the inner ring gasket is greater than the thickness of the race gasket.
9. a kind of method for replacing external rotor electric machine bearing as claimed in claim 2, which is characterized in that the shape of the groove
Be positive hexagonal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610436444.9A CN105896835B (en) | 2016-06-17 | 2016-06-17 | A kind of method and device for replacing external rotor electric machine bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610436444.9A CN105896835B (en) | 2016-06-17 | 2016-06-17 | A kind of method and device for replacing external rotor electric machine bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105896835A CN105896835A (en) | 2016-08-24 |
| CN105896835B true CN105896835B (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610436444.9A Active CN105896835B (en) | 2016-06-17 | 2016-06-17 | A kind of method and device for replacing external rotor electric machine bearing |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306459A (en) * | 2018-04-18 | 2018-07-20 | 江门市科业电器制造有限公司 | A kind of motor production line for automatically assembling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002027704A (en) * | 2000-07-07 | 2002-01-25 | Jidosha Denki Kogyo Co Ltd | Motor end cover |
| CN103317475A (en) * | 2013-06-27 | 2013-09-25 | 开平市盈光机电科技有限公司 | Mechanism for assembling and disassembling bearing of injection molding machine |
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- 2016-06-17 CN CN201610436444.9A patent/CN105896835B/en active Active
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