CN206922557U - A kind of brushless, permanently high-speed electric expreess locomotive using integral bearing - Google Patents
A kind of brushless, permanently high-speed electric expreess locomotive using integral bearing Download PDFInfo
- Publication number
- CN206922557U CN206922557U CN201720616918.8U CN201720616918U CN206922557U CN 206922557 U CN206922557 U CN 206922557U CN 201720616918 U CN201720616918 U CN 201720616918U CN 206922557 U CN206922557 U CN 206922557U
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- China
- Prior art keywords
- bearing
- mandrel
- brushless
- speed electric
- expreess locomotive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 239000004519 grease Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 241000222712 Kinetoplastida Species 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a kind of brushless, permanently high-speed electric expreess locomotive using integral bearing, swash coil and casing including mandrel, permanent magnetic steel, magnetic, described mandrel is provided with the outer raceway of several columns, permanent magnetic steel is equipped with described mandrel, described outer raceway and permanent magnetic steel are located at described mandrel leading portion and mandrel back segment respectively；The part with outer raceway on described mandrel is cased with bearing outer ring, and described bearing outer ring coordinates with casing to be installed；The interior raceway matched with described outer raceway is provided with described bearing outer ring；Some rolling elements are provided with described outer raceway and interior raceway, retainer is provided between described some rolling elements；Described casing is provided with magnetic and swashs coil, and described magnetic swashs the periphery that coil is located at described permanent magnetic steel.Precision height, perfect heat-dissipating with rotation, service life length and the characteristic having a wide range of application.
Description
Technical field
The utility model belongs to field of electrical equipment field, and more particularly to a kind of brushless, permanently using integral bearing is at a high speed
Motor.
Background technology
Brushless, permanently (direct current, exchange) motor is because it has efficiency high, and rotating speed is high, and noise is low, long lifespan, security
Height, the advantages that caloric value is small, have in industry and civil area and be widely applied very much.Permanent magnetic brushless (see Fig. 1) includes turning
Sub- axle (1 ') and force fit or the permanent magnetic steel (6 ') of bonding composition rotor, and casing (7 ') group with magnetizing coil (4 ')
Into stator, armature spindle two typically interference fit is equipped with bearing (5 '), end cap (3 ') and bearing clearance or interference fit, with stator
With screw or it is adhesively fixed after location fit, axle stretch end carries working equipment (2 '), such as blade, saw blade, emery wheel, shaft coupling, tooth
Wheel etc., in addition possibly also with fan and multi-class control system.Because above-mentioned permanent magnetic brushless all uses armature spindle two
End interference fit installation bearing, end cap (3 ') after bearing clearance or interference fit, with stator location fit with using screw or bonding
Fixed mode, there will be fatefulue influence in high-speed electric expreess locomotive field, it is main as follows：
1), due to bearing and axle interference fit install, brearing bore tolerance it is discrete and axle outer diameter tolerance discrete to axle
It is more scattered to hold the influence of working gap and installation swelling stress, the reliability that runs at high speed of bearing, Jin Erying certainly will be had influence on
Ring the running accuracy and reliability to motor；
2), because bearing and axle interference fit are installed, the form accuracy of brearing bore running accuracy and axle, as the shaft shoulder is relative
Circularity of perpendicularity, axle external diameter in axle pivot etc. will be duplicated in raceway by interference fit, influence to run at high speed
Precision, while cause bearing heating, vibration amplification, life-span drastically to decline, or even cause life-span for running at high speed of motor anxious
Play declines；
3), in addition, bearing outside diameter is installed in end cap, end cap coordinates installation in casing again；Bearing bore diameter and axle interference
Installation.So many installation coordinates, even if being ensured using top process equipment and technique, it is also difficult to ensure installation accuracy and rotation
Turn the uniformity of precision；
4), due to using common deep groove ball bearing or cylindrical bearing structure, the rotor shaft size of the motor of minimum rigidity will
The appearance and size of bearing is determined, the appearance and size of bearing will determine the bearing capacity and limit speed ability of motor again, and this will system
The direction that about application extension of high-speed permanent-magnet brushless motor develops to higher rotating speed；
5) when, being worked due to high-speed permanent magnet motor, rotating speed is higher, and lubricant grease is not easy to maintain, easily causes bearing operation
Oil-poor, high-speed permanent-magnet brushless motor is relatively low using split sealed Bearing Life, will restrict electrical machinery life.As taken supplemental lubrication
Method, operation is more difficult, therefore many high-speed permanent-magnet brushless motors use mist of oil forced feed lubrication (such as grinding head motor), its cost
Higher, design structure is complicated；
6), due to using plain bearing structure, under high-speed permanent-magnet brushless motor high speed start and stop, bearing is easily beaten in end cap
It is sliding, cause bearing heating and the motor feels hot, so as to influence electrical machinery life.
Utility model content
To solve the above problems, the purpose of this utility model is that providing one kind is convenient to process and mount, compact-sized, precision
It is higher, the more high-revolving permanent magnetic brushless using integral bearing structure can be realized.
It is to reach above-mentioned purpose the technical solution of the utility model：A kind of brushless, permanently using integral bearing is electric at a high speed
Machine, including mandrel, permanent magnetic steel, magnetic swash coil and casing, and described mandrel is provided with the outer raceway of several columns, on described mandrel
Permanent magnetic steel is equipped with, described outer raceway and permanent magnetic steel are respectively positioned at the leading portion of described mandrel and the back segment of mandrel；Institute
The part with outer raceway on the mandrel stated is cased with bearing outer ring, and described bearing outer ring coordinates with casing to be installed；Described
Bearing outer ring inner circumferential is provided with the interior raceway matched with described outer raceway；Some rollings are provided with described outer raceway and interior raceway
Body, retainer is provided between described some rolling elements；Described casing is provided with magnetic and swashs coil, and described magnetic swashs coil and is located at
The periphery of described permanent magnetic steel.
Coordinate between bearing outer ring with casing and install, avoid and pacified by coordinating after end cap, bearing Multi-nesting with casing
Assembly precision caused by dress is poor, swelling stress is scattered and influences the performance to run at high speed, has also prevented because bearing and end cap
Between skid friction and generate heat, be greatly reduced vibration and improve running accuracy；Bearing outer ring directly contacts with casing, and connects
Contacting surface product is big, substantially increases heat dispersion, improves the service life of motor；Outer raceway is opened up on mandrel, eliminates tradition
Bearing inner race, reduce the overall dimensions of brushless, permanently high-speed electric expreess locomotive, expanded the application of brushless, permanently high-speed electric expreess locomotive.
The leading portion of described mandrel turns into power output shaft through a drive end bearing bracket, and the back segment of described mandrel is located at a rear end
Lid inner side.The leading portion of mandrel can assembly tooling, permanent magnetic steel is compact-sized is easily installed maintenance for the back segment assembling of mandrel, and has one
Fixed trim effect
The inner circumferential at described bearing outer ring both ends is provided with neck, is provided with that non-contact to meet labyrinth type close in described neck
Sealing assembly.The all component that sealed bearings outer ring is contained can be played.
Described rolling element is one of steel ball, needle roller or cylindrical roller, or foregoing any combination.Can be according to using ring
Border selects the type and quantity of rolling element.
The quantity of the outer raceway of described several columns arranges for 2-5.There is larger space between more raceways, can store more
Lubricating grease, this also solves high-speed permanent-magnet brushless motor for a long time using the easy oil-poor problem of lubricating oil.
Described bearing outer ring is by being interference fitted or being bonded on described casing.
Described permanent magnetic steel is by being interference fitted or being bonded on described mandrel.
High speed grease is filled with described retainer.
Described casing is provided with other annex facilities, and described annex facility is oil sealing, handle, gas or liquid flow
One of road, cooling system, thermal insulation barriers, shock absorber part, protective cover, or foregoing any combination.
Outer raceway is directly opened up on mandrel in technical solutions of the utility model and turn into an entirety, can realize higher
Precision, avoid conventional rotors axle and bearing inner race from combining the precision problem that assembling is brought, ensure that the precision of rotation；Outside bearing
Enclose directly has the characteristic for assembling firm and perfect heat-dissipating with casing with one entirety of synthesis, improves the service life of product；
The design of integral bearing cause on an equal basis output efficiency in the case of reduce product size, expanded application.
Brief description of the drawings
Fig. 1：The structural representation of existing permanent magnetic brushless.
Fig. 2：A kind of structural representation of brushless, permanently high-speed electric expreess locomotive using integral bearing of the utility model embodiment
Figure.
Embodiment
The utility model is made below in conjunction with Figure of description and being specifically described.
It is to reach above-mentioned purpose the technical solution of the utility model：
As shown in Fig. 2 a kind of brushless, permanently high-speed electric expreess locomotive using integral bearing, including mandrel 1, permanent magnetic steel 2, magnetic swash
Coil 3 and casing 4, described mandrel 1 are provided with the outer raceway 11 of several columns, permanent magnetic steel 2, institute are equipped with described mandrel 1
The outer raceway 11 and permanent magnetic steel 2 stated are respectively positioned at the leading portion of described mandrel 1 and the back segment of mandrel 1；On described mandrel 1
Part with outer raceway 11 is cased with bearing outer ring 5, and described bearing outer ring 5 coordinates with casing 4 to be installed；Described bearing outer ring
5 inner circumferentials are provided with the interior raceway 51 matched with described outer raceway 11；If it is provided with dry milling in described outer raceway 11 and interior raceway 51
Kinetoplast 6, retainer 7 is provided between described some rolling elements 6；Described casing 4 is provided with magnetic and swashs coil 3, and described magnetic swashs
Coil 3 is located at the periphery of described permanent magnetic steel 4.
Coordinate between bearing outer ring with casing and install, avoid and pacified by coordinating after end cap, bearing Multi-nesting with casing
Assembly precision caused by dress is poor, swelling stress is scattered and influences the performance to run at high speed, has also prevented because bearing and end cap
Between skid friction and generate heat, be greatly reduced vibration and improve running accuracy；Bearing outer ring directly contacts with casing, and connects
Contacting surface product is big, substantially increases heat dispersion, improves the service life of motor；Outer raceway is opened up on mandrel, eliminates tradition
Bearing inner race, reduce the overall dimensions of brushless, permanently high-speed electric expreess locomotive, expanded the application of brushless, permanently high-speed electric expreess locomotive.
The leading portion of described mandrel 1 turns into power output shaft through a drive end bearing bracket 8, and the back segment of described mandrel 1 is located at one
The inner side of rear end cap 9.The leading portion of mandrel can assembly tooling, mandrel back segment assembling permanent magnetic steel is compact-sized to be easily installed maintenance, and
There is certain trim effect
The inner circumferential at the described both ends of bearing outer ring 5 is provided with neck 52, is provided with described neck 52 and non-contact meets fan
Palace formula seal assembly 10.The all component that sealed bearings outer ring is contained can be played.
Described rolling element 6 is one of steel ball, needle roller or cylindrical roller, or foregoing any combination.Can be according to application
The type and quantity of environmental selection rolling element.
The quantity of the outer raceway 11 of described several columns arranges for 2-5.There is larger space between more raceways, can store more
Lubricating grease, this also solves high-speed permanent-magnet brushless motor for a long time using the easy oil-poor problem of lubricating oil.
Described bearing outer ring 5 is by being interference fitted or being bonded on described casing 4.
Described permanent magnetic steel 2 is by being interference fitted or being bonded on described mandrel 1.
High speed grease is filled with described retainer 7.
Described casing 4 is provided with other annex facilities, and described annex facility is oil sealing, handle, gas or liquid flow
One of road, cooling system, thermal insulation barriers, shock absorber part, protective cover, or foregoing any combination.
Outer raceway is directly opened up on mandrel in technical solutions of the utility model and turn into an entirety, can realize higher
Precision, avoid conventional rotors axle and bearing inner race from combining the precision problem that assembling is brought, ensure that the precision of rotation；Outside bearing
Enclose directly has the characteristic for assembling firm and perfect heat-dissipating with casing with one entirety of synthesis, improves the service life of product；
The design of integral bearing cause on an equal basis output efficiency in the case of reduce product size, expanded application.
Claims (9)
1. a kind of brushless, permanently high-speed electric expreess locomotive using integral bearing, including mandrel, permanent magnetic steel, magnetic swash coil and casing, its
It is characterised by：Described mandrel is provided with the outer raceway of several columns, and permanent magnetic steel, described outer raceway are equipped with described mandrel
With permanent magnetic steel respectively positioned at the leading portion of described mandrel and the back segment of mandrel；The part with outer raceway on described mandrel
Bearing outer ring is cased with, described bearing outer ring coordinates with casing to be installed；Described bearing outer ring inner circumferential is provided with and described outer rolling
The interior raceway of road matching；Some rolling elements are provided with described outer raceway and interior raceway, are provided between described some rolling elements
Retainer；Described casing is provided with magnetic and swashs coil, and described magnetic swashs the periphery that coil is located at described permanent magnetic steel.
A kind of 2. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：Described core
The leading portion of axle turns into power output shaft through a drive end bearing bracket, and the back segment of described mandrel is located on the inside of a rear end cap.
A kind of 3. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：Described axle
The inner circumferential at bearing outer-ring both ends is provided with neck, is provided with described neck and non-contact meets labyrinth seal assembly.
A kind of 4. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：Described rolling
Kinetoplast is one of steel ball, needle roller or cylindrical roller, or foregoing any combination.
A kind of 5. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：If described
The quantity of the dry outer raceway of row arranges for 2-5.
A kind of 6. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：Described axle
Bearing outer-ring is by being interference fitted or being bonded on described casing.
A kind of 7. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：It is described forever
Magnetic magnet steel is by being interference fitted or being bonded on described mandrel.
A kind of 8. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：Described guarantor
Hold and high speed grease is filled with frame.
A kind of 9. brushless, permanently high-speed electric expreess locomotive using integral bearing as claimed in claim 1, it is characterised in that：Described machine
Shell is provided with other annex facilities, and described annex facility is oil sealing, handle, gas or flow channel for liquids, cooling system, heat-insulated
One of part, shock absorber part, protective cover, or foregoing any combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616918.8U CN206922557U (en) | 2017-05-27 | 2017-05-27 | A kind of brushless, permanently high-speed electric expreess locomotive using integral bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616918.8U CN206922557U (en) | 2017-05-27 | 2017-05-27 | A kind of brushless, permanently high-speed electric expreess locomotive using integral bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206922557U true CN206922557U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720616918.8U Expired - Fee Related CN206922557U (en) | 2017-05-27 | 2017-05-27 | A kind of brushless, permanently high-speed electric expreess locomotive using integral bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206922557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086705A (en) * | 2017-05-27 | 2017-08-22 | 杭州驰创机械有限公司 | A kind of brushless, permanently high-speed electric expreess locomotive of use integral bearing |
-
2017
- 2017-05-27 CN CN201720616918.8U patent/CN206922557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086705A (en) * | 2017-05-27 | 2017-08-22 | 杭州驰创机械有限公司 | A kind of brushless, permanently high-speed electric expreess locomotive of use integral bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Permanent-magnet brushless high-speed motor using integrated bearing Effective date of registration: 20180928 Granted publication date: 20180123 Pledgee: Hangzhou United Rural Commercial Bank Limited by Share Ltd. branch of science and technology Pledgor: HANGZHOU CHIPRO MACHINERY CO.,LTD. Registration number: 2018330000302 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 |