CN101635482B - Electromotor with push system - Google Patents
Electromotor with push system Download PDFInfo
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- CN101635482B CN101635482B CN2009101493607A CN200910149360A CN101635482B CN 101635482 B CN101635482 B CN 101635482B CN 2009101493607 A CN2009101493607 A CN 2009101493607A CN 200910149360 A CN200910149360 A CN 200910149360A CN 101635482 B CN101635482 B CN 101635482B
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- Prior art keywords
- armature spindle
- end cap
- distance piece
- locator
- location notch
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- 238000013461 design Methods 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 238000002788 crimping Methods 0.000 description 5
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- 238000012856 packing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- 238000004804 winding Methods 0.000 description 1
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Abstract
The present invention relates to an electric motor including a stator and a rotor having a rotor shaft with a longitudinal axis. The rotor shaft has a locating groove formed substantially continuously around the rotor shaft. The locating groove has a base and a pair of opposing sidewalls. The base is arranged substantially parallel to the axis of rotation. The pair of opposing sidewalls extends from the base wall substantially perpendicular to the axis of rotation. The motor includes a thrust system mounted on the rotor shaft, and a locator disposed in the groove for locating the thrust system in a predetermined position along the rotor shaft.
Description
The cross reference of related application
The application is that the application number of submission on August 29th, 2006 is 11/467,986 part continuation application.
Technical field
The present invention relates to a kind of motor with push system.
Background technology
The motor of existing band push system uses the epoxy resin assembling usually.Though this motor is barely satisfactory, but still exist some not enough: using of epoxy resin can not " rely on " in manufacturing technology; The curing of epoxy resin needs a few hours, thereby obviously makes assembling process have more a few hours and the number of motors of " in processing " is at any time increased; Epoxy resin has sharp edge usually after sclerosis, thereby makes it to be difficult to operation.Therefore, need a kind of electric machine structure that can eliminate in manufacture process the demand of epoxy resin.
Summary of the invention
On the one hand, motor comprises the rotor of stator and band armature spindle.This armature spindle comprises a location notch that forms around armature spindle substantially continuously.This location notch has a basal wall (base portion) and a pair of relative sidewall.This basal wall is arranged to be arranged essentially parallel to the longitudinal axis of armature spindle.Described a pair of relative sidewall is basically perpendicular to described longitudinal axis ground and extends from described basal wall.Motor comprises that the push system and that is installed on the described armature spindle is arranged on the locator in the described groove, and this locator is used for along armature spindle push system being positioned at a pre-position.
On the other hand, motor comprises the rotor of stator and band armature spindle, forms a location notch in this armature spindle.This motor has the end cap and the push system that is installed on the armature spindle on the end that is arranged on rotor and stator.This push system comprises and one is configured to rotatably the supporting rotor axle, remains on the sleeve bearing in the end cap.Motor comprises that also one is arranged on the locator in the described location notch, and this locator is used for push system is positioned at a pre-position.This push system comprises that one is arranged on distance piece between described bearing and the described locator that is arranged in the location notch along armature spindle.Distance piece comprises the maintenance flange that extends towards locator from the one side of distance piece, and described maintenance flange configuration becomes to surround at least in part the described periphery that is arranged at the locator in the location notch.
Again on the one hand, motor comprise stator, band armature spindle rotor, be installed in the push system on the described armature spindle.Motor has the end cap on the end that is arranged on rotor and stator.Described end cap comprises open-ended keyhole shape slit, is used for described end cap is fixed to securing member on the stator with admittance.
Description of drawings
Fig. 1 is the perspective view of the motor of an embodiment;
Fig. 2 is the cutaway view of motor;
Fig. 3 is the partial enlarged drawing of Fig. 2, the push system of this embodiment shown in it, and Fig. 3 A, 3B, 3C are the views that further amplifies;
Fig. 4 is the perspective view of system fan;
Fig. 5 is the partial enlarged drawing of Fig. 1, the zone of the securing member of lid of link shown in it and stator;
Fig. 6 is the zoomed-in view of the installation lug of end cap, comprising a complete slit;
Fig. 7 is the zoomed-in view of the installation lug of end cap, comprising a keyhole slit.
Embodiment
With reference to Fig. 1-2, the motor of one embodiment of the invention is generally with 11 expressions.Motor comprises that generally one has the stator 12 of winding 13 and stator core (totally with 14 expressions), and stator core then comprises lamination 14a.Totally be coupled with stator magnet and have rotor core 16 and armature spindle 17 with the rotors of 15 expressions.Motor also comprises the end cap 19 that is fixed on the stator core 14.Motor 11 is suitable for use as the drier motor.When being applied to drier, an end of axle has a fluting belt pulley 21 that is used to install the belt (not shown), and this belt is used to make the rotation of drier tube.Can be susceptible to a lot of other application of motor within the scope of the invention.
With reference to Fig. 2-3, first push system 25 is installed on armature spindle 17.First push system 25 comprises that one is installed in one of them end cap 19 and is received in sleeve bearing 27 on the armature spindle 17.End cap 19 have with the contacted rib 29 of the outer peripheral face 27a of bearing (being called " supporting piston ring land " sometimes), with the contacted maintenance boom 31 of inner surface 27b of bearing, thereby bearing is clamped between described rib and the arm.Rib 29 and arm 31 together remain on bearing 27 in the end cap 19.Should be pointed out that terminology used here " interior ", " outward " all are for the ease of the description of the drawings, and scope of the present invention is not formed restriction.End cap 19 suitably is the metal casting of aluminium matter for example, but also can be molded plastic parts etc.Retainer is made discretely with this foundry goods alternatively.
On the relative both sides that the inside and outside packing ring 35a of push system 25,35b are arranged on bearing 27.In the present embodiment, described packing ring is the steel washer that approaches, for example the hardened steel packing ring.
Outwards be provided with a distance piece 37 from outer washer 35b.In the present embodiment, described distance piece is made by nylon and thick about 0.125 inch.The internal diameter size design of this distance piece becomes on axle 17 to slide, the external diameter size design becomes greater than outer washer 35b, thereby when bearing for example under to the effect of the impact of axle or other inside power with respect in axially when mobile, the inner surface of distance piece can abut on the rib 29 of end cap, thereby by end cap 19 rather than by bearing 27 " counteracting " or transmit described power.
Outwards be provided with O type circle 41 outside (broadly, locator or circle) from distance piece 37.O type circle 41 is placed in the location notch 43 (Fig. 3 A) that is integrally formed on the axle 17.O type circle suitably by elastomeric material for example rubber etc. make.Thereby the overall diameter of the axle that the internal diameter size design of O type circle becomes to be significantly less than can be housed inside in the groove 43.The cross section of O type circle can not be circular.
With reference to Fig. 3, the groove 43 of present embodiment apart is formed in this axle with the outer end of axle 17 45 accurate distance.Then, push system 25 is accurately located with respect to groove (with O type circle), and is as mentioned below.Perhaps, groove 43 can be formed in the axle and not consider distance with this end of 17, and push system can accurately be located with respect to groove simply, and needn't be simultaneously with respect to groove and shaft end location.On the contrary, shaft end also can be used as locator.In addition, locator can have other configuration, can comprise the O type circle that is additional to O type circle and shaft end or replacement and the further feature portion of shaft end.
Between the inside and outside edge of groove, arrange a basal wall 48 and a pair of relative sidewall 50,52.Described a pair of relative sidewall comprises the madial wall 52 that extends internally towards the axis of axle from inward flange and the lateral wall 50 that extends internally towards the axis of axle from outward flange.Width between inward flange madial wall 52 and the lateral wall 50 makes O type circle can be accepted in the groove and (sees Fig. 3 B) corresponding to the width of O type circle.Basal wall 48 is arranged to be parallel to substantially the axis of axle, and has certain degree of depth with respect to the periphery of axle 17, so that be accepted in the groove at least about 33% O type circle periphery, for example admits about 40%.Should be pointed out that O type circle 41 is received within the groove at least about 33%, wherein disregards the degree of depth of chamfering.
For further stoping or limiting the motion of O type circle in response to axial force, madial wall 52 and lateral wall 50 can radially extend from base portion, so that be basically perpendicular to basal wall 48.Madial wall 52 and lateral wall 50 are connected to basal wall 48 by edge 54 bending or rounding respectively so that groove 43-except the edge of chamfering-have as shown in Figure 3A U-shaped or the square cross section of rounding.Sidewall 52,50 has stoped the axial motion of locator O type circle 41 along axle 17 with respect to the orientation that is basically perpendicular to of basal wall.
For stoping or limiting the radial motion that O type circle 41 leaves groove, distance piece 37 comprises that one keeps flange 42, illustrates as Fig. 3 and 3B the best.Keeping flange 42 can be continuous circular shape projection on the outer surface of distance piece, this projection on distance piece, be positioned to basic around and stretch out the outermost circumferential surface of O type circle 41 at least in part.Keep flange to extend with respect to axle 17 vertically, a half width of passing through groove at least, but this maintenance flange also can reach any suitable amount outside the O type circle.Thereby keep flange to cooperate with groove 43 to surround the axial and radial motion of prevention of O type circle or restriction O type circle at least in part.The maintenance flange can be integrally formed with distance piece.But flange also can form discretely with distance piece, and closes suitable manner and be attached on this distance piece to appoint.Although Shuo Ming flange is continuous projection herein, in other embodiments, flange also can comprise the projections that make progress in week, a plurality of spaces that are arranged in distance piece around O type circle.
Referring again to Fig. 3, further outwards is a bearing cap 51 and a hub circle 53 from O type circle.Axle 17 outer end 45 is threaded, so as by other element or not on this outer end associated element admit a dryer drums blower fan (not shown).
Inwardly relatively be provided with a thrust ring 57 and an interior O type circle 59 from bearing with inner washer 35a.The thrust ring of present embodiment is annular, and comprise one from space 61 that its inner surface 63 extends internally with O type circle 59 in admitting.Owing to following reason, the size in space 61 becomes to make O type circle 59 to stretch out from the inner surface 63 of thrust ring 57 with shaped design.In addition, the size in space 61 becomes with shaped design, and when O type circle 59 was compressed, this O type circle can fully or substantially fully be received in this space, thereby can be not protruding from inner surface as at following embodiment assembly process.In the present embodiment, thrust ring is made by nylon, and O type circle is made by the elastomeric material of for example rubber.
Inside from thrust ring, push system 25 comprises that also one is used for absorbing the tolerance of (subduing) push system or the tolerance system 71 of change.Tolerance system 71 comprises the part of the fan 67 (more broadly, the most inboard parts) that is used for cooling motor 11.Fan 67 is installed on the armature spindle 17 and passes through tolerance system 71 fix in position.The tolerance system comprises one along deformable part or recess 73 in the hub 74 that extends circumferentially to fan 67.Recess 73 forms (that is, it is not to be formed in the hub in advance) during assembling motor, described in the exemplary assembling method, this concave depth D can change with tolerance in the absorption system or variation as hereinafter.This hub also comprises the edge 75 that is formed in the hub in advance and forms the chamfering that helps assembling.Tolerance system 71 also comprises from axle 17 extended protruding 79.In the present embodiment, projection 79 is the outward flanges that are integrally formed at the crimping ring (rolled collar) 80 in the axle 17.Also can be susceptible to a lot of other configurations.Recess 73 in the hub is generally formed by projection 79 at assembly process, thereby projection 79 is installed in the hub 74 of plastic deformation.
With reference to Fig. 4, fan hub 74 comprises the recess 83 (broadly, " cut-away ") that is used for ease of assembly and prevents the hub fracture.Solid continuous hub may rupture on being fixed to the crimping ring time.Therefore, as shown in the figure, hub 74 comprises two recesses 83, also can use the recess (for example 3-4) of other quantity.This design is better than wherein hub to have a plurality of being used for and remains on the crimping ring fan or other prior art from the structural rib of crown of roll.Yet fan 67 is optional.What thrust ring 57 can comprise tolerance system 71 is described as being formed at part in the fan 67 here.
In one embodiment, like this push system 25 is assembled on the axle 17: at first the hub 74 with fan 67 slides on the axle; Next, thrust ring 57, interior O type circle 59, outer washer 35a and end-cap assembly 19 (comprising bearing 27) being set on axle, is outer washer 35b and distance piece 37 then; Vertically distance piece 37 is applied inside pressure interior O type circle 59 is pressed in the space 61 in the thrust ring 57.
Described pressure also forces fan hub 74 to enter position on the projection 79 of crimping ring 80, thereby forms recess 73.(note, if the tolerance system be the part of thrust ring 57 rather than as shown in the figure be the part of fan 67, then thrust ring engages with the crimping ring.) release pressure when accurately locating push system 25 with respect to groove 43, at this moment recess has the depth D shown in Fig. 3 C.According to the position of projection 79 and the thickness of fan 67, thrust ring 57, interior O type circle 59, packing ring 35a, 35b, end-cap assembly 19 (comprising bearing 27) and distance piece 37, described depth D can change.In other words, all tolerances or variation in the each part mentioned above of tolerance system 71 absorption motors 11, thus no matter how the variation in each parts all can make push system 25 be accurately positioned.
Behind release pressure, outer O type circle 41 is placed on axle 17 the outer end (this O type circle may need to be tauted or to expand), and is moved inward in being placed on groove 43.In case O type circle 41 is moved, push system 25 is set as illustrated in fig. 3 then.The push system 25 of present embodiment allows a free axle head play with a scheduled volume, for example less than about 0.020 inch, or between about 0.002 to about 0.015 inch.After this remaining can be installed, be mounted in the parts (for example, dryer drums blower fan) on axle 17 the outer end.Should be pointed out that described axle has been pressed in the rotor core 16 before assembling push system 25 on the axle 17, also in this rotor core, be pressed into a centrifugal actuator 87 (Fig. 2) in the side relative of rotor core with push system.In this embodiment, push system 25 is set at stator core 14 and the relative side of shaft end carry load (the fluting belt pulley 21 (Fig. 1) that is used for belt).This arrangement has reduced bearing temperature, has improved the reliability and the useful life of motor on the whole.
With reference to Fig. 5, each end cap 19 includes from the rib of end cap or the radially extended a plurality of supporting legs 90 of supporting piston ring land (Fig. 5).The outer end of supporting leg 90 has the installation lug to be used for engaging with the end face of stator formed thereon.On existing end cap, end cap or end cap are installed the circumference of the extended stator of outer end edges of lug, and the extension of the lug that makes is easy to be impacted.If the end cap to prior art applies impact, then can change the air gap between stator and the rotor, and influence the work of motor unfriendly.
With reference to Fig. 6, in order to solve the problem of the installation lug that stretches out, the installation lug 92 of end cap 19 has complete slit 100 to admit securing member 93.In the present embodiment, securing member is a screw, but also can use bolt, rivet or other similar elements.At assembly process, screw can be drawn in lamination 14a usually in the slit that some are good to guarantee to connect.The complete slit of design makes the material outside securing member that lug is installed be " removed " in the installation lug of end cap, thereby described lug no longer stretches out stator.When stator core 14 was subjected to impacting, end cap 19 was not affected, thereby had prevented the infringement to end cap and motor.
For securing member being provided extra supporting, the installation lug 92 of end cap can design lockhole slit 110 as shown in Figure 7.Similar to complete slit, lockhole slit 110 is slits of open-ended.And in the embodiment of lockhole slit, the Outboard Sections of this slit is narrower than inside part.Especially, the lockhole slit comprises fastener openings 114 and passes the narrow slot portion 118 that the outward flange 120 of lug extends from fastener openings 114.The size of the fastener openings 114 of lockhole slit and shaped design become to admit the securing member such as shown in Figure 5 screw 93.The narrow slot portion 118 of lockhole slit is narrower than fastener openings 114.The part 124 that the narrow slot portion 118 of vicinity of lug is installed is configured to provide the additional tabs material that can supply fastener head to recline when securing member is loaded into stator core.When securing member was tightened in stator core, the narrow slot portion of lockhole slit prevented that fastener head and securing member upper bar from tilting and/or fracture.
In one embodiment, complete slit and/or lockhole slit can be when the casting end cap and end cap integrally formed.For example, can in the end cap mould, put into mould parts and form slit with installation lug at end cap.Perhaps, can after the casting end cap, utilize secondary processing in lug is installed, to form slit.Can use any method in the installation lug of end cap, to form slit.
Embodiments of the invention have been realized the production technology of more saving than the motor of prior art.For example, can need not epoxy resin ground and produce motor, thus make production process faster, more cost effectively, more accurate.This New-type electric machine Control Shaft better extends tolerance.In addition, the thrust load of bearing surface is less than or equal to the motor of prior art, thereby the temperature of bearing is remained on the acceptable level.Should be pointed out that free axle head play that push system is guaranteed makes can not generate heat on two bearing surfaces simultaneously.In other words, at any time, thrust load only acts on one of bearing surface.(of the present invention) thrust assembly is more cheap than the thrust assembly that adopts ball bearing, and is more accurate than the assembly that adopts the PAL nut, be easier to dismounting.
Some embodiment of thrust assembly of the present invention also can resist the impact of a both sides.Above-mentioned distance piece is delivered to end cap with impulsive force, so bearing stand under load not.O type circle in the groove also is used for assembly is held in place.The O type circle of both sides also plays the effect that reduces noise of motor.
Another advantage that O type circle is arranged in the structure of groove is to have reduced tolerance build-up.The size of slot pitch axle head is accurate, and assembly is according to groove and O type delineation position.The whole thrusts that act on the axle are all passed through a push system counteracting, rather than pass through two push system as in the motor of prior art.Inside thrust is offset by distance piece by end cap, and outside thrust is also offset by end cap.Like this, push system work with prevent along any direction, along or be parallel under the effect of the shock loading of axis of axle or power axle and motor caused damage.In addition, only the tolerances in axial trough, O type circle and the assembly to free axle head play.Because need be at the opposite side bearing thrust of rotor/stator, so tolerance stack obviously reduces.Thereby make production technology more effective, make the free axle head play in the push system more accurate.In one embodiment, tolerance is less than 0.020 inch, or even between about 0.002 to 0.015 inch.
When introducing the element of of the present invention or preferred embodiment, term " ", " being somebody's turn to do ", " described " are used to represent one or more elements.Term " comprises ", " comprising ", " having " being understood to include property and express possibility and have other element except that listed element.
Under the situation that does not deviate from scope of the present invention, can make various changes to said structure, product and method.It is exemplary and nonrestrictive to should be understood that all contained in above-mentioned explanation and accompanying drawing fleshes and bloods all should be interpreted as.
Claims (15)
1. motor comprises:
The stator module that comprises centre bore;
Be placed on the rotor assembly in the described centre bore, this rotor assembly comprises the extended armature spindle of at least one end from described centre bore, this armature spindle comprises the location notch that is formed at wherein, this location notch forms around described armature spindle substantially continuously, this location notch has a basal wall and a pair of relative sidewall, this basal wall is arranged to be parallel to substantially the longitudinal axis of described armature spindle, and described a pair of relative sidewall is basically perpendicular to described longitudinal axis ground and extends from described basal wall;
Be installed in the push system on the described armature spindle;
Locator, this locator are arranged in the described location notch between described relative sidewall at least in part, and described locator is positioned at one and sentences limit thrust system moving along described armature spindle along the precalculated position of armature spindle; With
Be connected to the end cap of the end of stator module, armature spindle stretches out from this end, described end cap comprises open-ended keyhole shape slit, be used for described end cap is fixed to securing member on the stator module with admittance, described keyhole shape slit has Outboard Sections and inside part, and described Outboard Sections is narrower than described inside part.
2. motor according to claim 1, it is characterized in that, the open-ended keyhole shape slit of described end cap is arranged on the circumference of end cap, so that the circumference of end cap can align with the periphery of stator when this end cap fastener is fixed to stator, the circumference that this open-ended keyhole shape slit is positioned on the described circumference with the restriction end cap reaches beyond the periphery of stator.
3. motor according to claim 1, it is characterized in that push system comprises sleeve bearing and distance piece, described sleeve bearing is contained in the interior opening of end cap, and supporting rotor axle rotatably, described distance piece is arranged between described bearing and the described locator along armature spindle.
4. motor according to claim 3 is characterized in that, described distance piece comprises the maintenance flange that extends towards locator from the one side of distance piece, the periphery that described maintenance flange configuration becomes to surround described locator at least in part.
5. motor according to claim 4, it is characterized in that, described distance piece comprises the opening that is used to admit armature spindle, keep flange to be included in annular projection on described of described distance piece, the size design of the internal diameter of described annular projection becomes when distance piece is placed on the armature spindle and the periphery that is arranged on the described locator in the location notch matches.
6. motor comprises:
The stator module that comprises centre bore;
Be placed on the rotor assembly in the described centre bore, this rotor assembly comprises the extended armature spindle of at least one end from described centre bore, and this armature spindle comprises the location notch that is formed at wherein;
Be arranged on the locator in the described location notch;
Be installed in the push system on the described armature spindle, this push system comprises sleeve bearing and distance piece, described sleeve bearing is configured to supporting rotor axle rotatably, described distance piece is arranged between described bearing and the described locator along armature spindle, described distance piece comprises the maintenance flange that extends towards locator from the one side of distance piece, and described maintenance flange configuration becomes to surround at least in part the described periphery that is arranged on the locator in the location notch; And
Be connected to the end cap of the end of stator module, described end cap comprises open-ended keyhole shape slit, be used for described end cap is fixed to securing member on the stator module with admittance, described keyhole shape slit has Outboard Sections and inside part, and described Outboard Sections is narrower than described inside part;
Described locator, distance piece and sleeve bearing are configured to interact along described armature spindle push system is positioned at a precalculated position.
7. motor according to claim 6, it is characterized in that, described distance piece also comprises the opening that is used to admit armature spindle, keep flange to be included in annular projection on described of described distance piece, the size design of the internal diameter of described annular projection becomes when distance piece is placed on the armature spindle and the periphery that is arranged on the described locator in the location notch matches.
8. motor according to claim 6, it is characterized in that, this location notch forms around described armature spindle substantially continuously, this location notch has a basal wall and a pair of relative sidewall, this basal wall is arranged to be parallel to substantially the longitudinal axis of described armature spindle, and described a pair of relative sidewall is basically perpendicular to described longitudinal axis ground and extends from described basal wall.
9. motor according to claim 8 is characterized in that, the basal wall of described location notch is connected with the bight of a pair of relative sidewall by rounding.
10. motor according to claim 6, it is characterized in that, the open-ended keyhole shape slit of described end cap is arranged on the circumference of end cap, so that the circumference of end cap can align with the periphery of this stator module when this end cap fastener is fixed on the stator module, the circumference that this open-ended keyhole shape slit is positioned on the described circumference with the restriction end cap reaches beyond the periphery of stator module.
11. a motor comprises:
The stator module that comprises centre bore;
Be placed on the rotor assembly in the described centre bore, this rotor assembly comprises the extended armature spindle of at least one end from described centre bore, and this armature spindle comprises the location notch that is formed at wherein;
Be installed in the push system on the described armature spindle;
Be at least partially disposed on the locator in the described location notch, described locator is positioned at one and sentences limit thrust system moving along described armature spindle along the precalculated position of armature spindle; With
Be connected to the end cap of the end of extending armature spindle of stator module, described end cap comprises open-ended keyhole shape slit, is used for described end cap is fixed to securing member on the stator with admittance;
Wherein, the open-ended keyhole shape slit of described end cap is arranged on the circumference of end cap, so that the circumference of end cap can align with the periphery of this stator module when this end cap fastener is fixed on the stator module, the circumference that this open-ended keyhole shape slit is positioned on the described circumference with the restriction end cap reaches beyond the periphery of stator module, described keyhole shape slit has Outboard Sections and inside part, and described Outboard Sections is narrower than described inside part.
12. motor according to claim 11, it is characterized in that, this location notch forms around described armature spindle substantially continuously, this location notch has basal wall and a pair of relative sidewall, this basal wall is arranged to be parallel to substantially the longitudinal axis of described armature spindle, and described a pair of relative sidewall is basically perpendicular to described longitudinal axis ground and extends from described basal wall.
13. motor according to claim 11 is characterized in that, push system comprises the sleeve bearing that remains in the end cap, and this sleeve bearing is configured to supporting rotor axle rotatably; Push system comprises along armature spindle and is arranged on described bearing and is arranged on distance piece between the described locator in the location notch, described distance piece comprises the maintenance flange that extends towards locator from the one side of distance piece, and described maintenance flange configuration becomes to surround at least in part the periphery that is arranged on the described locator in the location notch.
14. motor according to claim 13, it is characterized in that, described distance piece also comprises the opening that is used to admit armature spindle, keep flange to be included in annular projection on described of described distance piece, the size design of the internal diameter of described annular projection becomes when distance piece is placed on the armature spindle and the periphery that is arranged on the described locator in the location notch matches.
15. motor according to claim 14 is characterized in that, described locator comprises an elastic ring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/141,184 US7772732B2 (en) | 2006-08-29 | 2008-06-18 | Motor having a thrust system |
| US12/141,184 | 2008-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101635482A CN101635482A (en) | 2010-01-27 |
| CN101635482B true CN101635482B (en) | 2011-12-28 |
Family
ID=41594577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101493607A Expired - Fee Related CN101635482B (en) | 2008-06-18 | 2009-06-18 | Electromotor with push system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101635482B (en) |
| MX (1) | MX2009006453A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3573510A (en) * | 1969-06-09 | 1971-04-06 | Gen Electric | Cushion thrust washer |
| US3966278A (en) * | 1974-11-13 | 1976-06-29 | Emerson Electric Co. | Lubricated self-aligning bearing assembly |
| US4309062A (en) * | 1979-09-21 | 1982-01-05 | Emerson Electric Co. | Bearing movement preventing system |
| US4689507A (en) * | 1986-03-27 | 1987-08-25 | Emerson Electric Co. | Ventilation structure for an electric motor |
-
2009
- 2009-06-16 MX MX2009006453A patent/MX2009006453A/en active IP Right Grant
- 2009-06-18 CN CN2009101493607A patent/CN101635482B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3573510A (en) * | 1969-06-09 | 1971-04-06 | Gen Electric | Cushion thrust washer |
| US3966278A (en) * | 1974-11-13 | 1976-06-29 | Emerson Electric Co. | Lubricated self-aligning bearing assembly |
| US4309062A (en) * | 1979-09-21 | 1982-01-05 | Emerson Electric Co. | Bearing movement preventing system |
| US4689507A (en) * | 1986-03-27 | 1987-08-25 | Emerson Electric Co. | Ventilation structure for an electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101635482A (en) | 2010-01-27 |
| MX2009006453A (en) | 2010-01-18 |
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