CN205509736U - Motor and bearing structure - Google Patents
Motor and bearing structure Download PDFInfo
- Publication number
- CN205509736U CN205509736U CN201390001252.5U CN201390001252U CN205509736U CN 205509736 U CN205509736 U CN 205509736U CN 201390001252 U CN201390001252 U CN 201390001252U CN 205509736 U CN205509736 U CN 205509736U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- ball bearing
- motor
- resin component
- metal parts
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/223—Heat bridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
- F16C27/066—Ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
- F16C37/007—Cooling of bearings of rolling bearings
-
- 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
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Frames (AREA)
- Mounting Of Bearings Or Others (AREA)
- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a motor and bearing structure, wherein, set up between outer lane (12) and motor casing (6) (perhaps bearing casing (7) of ball bearing (10) axle sleeve (20) by resin parts (21) of drum shape and cover these resin parts (21) at least in metal parts (22) component of outer peripheral face, metal parts (22) contact with outer lane (12) and motor casing (6) (perhaps bearing casing (7) difference face of ball bearing (10).
Description
Technical field
This utility model is directed to use with grease-enclosed formula ball bearing to be carried out support shaft and enables the shaft to motor and the bearing construction rotated.
Background technology
The bearing of high speed rotating is widely used as lathe and automotive part.The most common bearing is to be configured to be folded with multiple ball between inner ring and outer ring and enclose the grease-enclosed formula ball bearing of grease.Higher for the inner heat of the bearing of high speed rotating, therefore extend endurance life and become important topic.
Life-span in order to ensure bearing, implement the internal structure of change bearing (such as, reduce the contact area of ball and orbital plane), the countermeasure of dispelling the heat such as change bearing material (kinetic viscosity such as, reducing grease improves the heat resistance of grease itself).Additionally, when using bearing in product, radiating piece is installed (such as at bearing, with reference to patent documentation 1), the axle of the inner ring of fixing bearing is used heat pipe (for example, referring to patent documentation 2), by one-body molded (such as the outer ring of belt wheel Yu bearing, with reference to patent documentation 3), thus guarantee heat dispersion.
On the other hand, in the case of using bearing to carry out supporting rotating component (following, as a example by axle) and enable this rotary part to rotate, need to consider the vibration of axle itself.Such as, the natural frequency of axle consistent with the natural frequency of product itself and in the case of resonating, vibration amplitude can be increased, thus cause the damage of internal part.For the vibration of the axle of high speed rotating of decaying, need to be set to the highest by the natural frequency of axle itself.
In order to the natural frequency of axle is set to higher, need to improve the rigidity (shorten length, increase slightly) of axle, but due to the reason (such as, cost reduction, weight saving, volume reduce) of product, sometimes it is difficult to be set to higher by the natural frequency of axle.In this case, in order to improve the natural frequency of axle or reduce the resonance multiplying power of axle, and tolerance rings is installed (such as at bearing, with reference to patent documentation 4), mounting O-shaped ring (for example, referring to patent documentation 5), arranges high vibration decay metal (such as, with reference to patent documentation 6), make vibration decay.
Patent documentation 1: Japanese Unexamined Patent Publication 2012-149742 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2013-57300 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2010-90969 publication
Patent documentation 4: Japanese Unexamined Patent Application Publication 2010-525276 publication
Patent documentation 5: Japanese Unexamined Patent Application Publication 2010-535969 publication
Patent documentation 6: Japanese Unexamined Patent Publication 2004-251417 publication
Herein, it is considered to the structure of above-mentioned patent documentation 1～6 is applied to the situation of motor.
In the case of patent documentation 1,2, if bearing is pressed into axle, then housing side is formed as matched in clearance, therefore there is air layer between bearing and housing, thus cannot guarantee from bearing to the heat dissipation path of housing.
In the case of patent documentation 3, carrying out one-body molded to bearing with resin-made housing, therefore there is not air layer between bearing and resin-made housing, heat conduction is unobstructed, but final heat dissipation path is by resin formation, and therefore rate of heat dissipation is relatively low.Though the raising of rate of heat dissipation can be expected in the case of using high heat dispersion resin to constitute housing, but cost up.
It addition, the effect of vibration decay cannot be expected in patent documentation 1～3.
In the case of patent documentation 4, though arranging tolerance rings between bearing and housing to make vibration decay, but tolerance rings is linear contact lay, and therefore the radiating effect of bearing is relatively low.
In the case of patent documentation 5, though making vibration decay by arranging o-ring between bearing and housing, but o-ring is linear contact lay, and therefore the radiating effect of bearing is relatively low.It addition, when assembling, the compression stress of o-ring puts on axially, therefore assembleability is deteriorated.
In the case of patent documentation 6, though arranging high vibration decay metal between bearing and housing to make vibration decay, but it is in, owing to height vibration decay metal has, the characteristic that high temperature then vibration-damping effect is greatly lowered, so needing sandwiched low thermal-conductive member between bearing and high vibration decay metal, thus cannot guarantee from bearing to the heat dissipation path of housing.
So, in the structure of above-mentioned patent documentation 1～6, there is the problem being only capable of expectation heat radiation with the effect of either one of vibration decay.Therefore, in order to obtain the effect of the both sides with vibration decay of dispelling the heat, it is applied in combination the heat-dissipating structure of patent documentation 1～3 and the vibration Attenuation structure of patent documentation 4～6, thus causes the complication of structure, assembleability variation and high cost etc..
Utility model content
This utility model produces to solve problem as above, its object is to provide the bearing construction of the effect being readily available heat radiation and vibration decay and employ the motor of this bearing construction.
Motor of the present utility model possesses axle sleeve, it includes the resin component of drum and covers the metal parts of at least inner and outer circumferential surfaces of this resin component, above-mentioned axle sleeve is arranged between the outer ring of ball bearing and housing, and metal parts contacts in face respectively with outer ring and the housing of ball bearing.
It addition, the section of the axial rotary along axle of the metal parts of axle sleeve is U-shaped, the bending part of this U-shaped is polygon-shaped.
It addition, either one or both sides that axle sleeve is by the change material of resin component and hardness, adjust either one or both sides of resonance multiplying power and resonant frequency.
It addition, the resin component of axle sleeve has thermal diffusivity.
It addition, axle sleeve is formed by having Thermocurable or the resin component of moisture curable to metal parts injection.
It addition, axle sleeve is pressed between the outer ring of ball bearing and housing.
It addition, housing is made up of aluminum.
Bearing construction of the present utility model possesses: grease-enclosed formula ball bearing, and it will be fixed on the 1st parts of inner ring side and be fixed on the 2nd parts carry of side, outer ring for rotating against；And axle sleeve, it includes the resin component of drum and covers the metal parts of at least inner and outer circumferential surfaces of this resin component, above-mentioned axle sleeve is arranged between the outer ring of ball bearing and the 2nd parts, and metal parts contacts in face respectively with outer ring and the 2nd parts of ball bearing.
According to this utility model, formed as one by the metal parts of the resin component of the vibration attenuation function by mainly undertaking axle and the heat sinking function of mainly undertaking ball bearing and constitute axle sleeve such that it is able to be readily available vibration decay and the effect of heat radiation.Further, contact by making metal parts carry out face with ball bearing and housing, it is possible to increase from ball bearing via axle sleeve to the heat dispersion of housing.
According to this utility model, formed as one by the metal parts of the resin component of the vibration attenuation function by mainly undertaking the 1st parts and the heat sinking function of mainly undertaking ball bearing and constitute axle sleeve such that it is able to be readily available vibration decay and the effect of heat radiation.Further, contact by making metal parts carry out face with ball bearing and the 2nd parts, it is possible to increase from ball bearing via axle sleeve the heat dispersion to the 2nd parts.
Accompanying drawing explanation
Fig. 1 is the sectional view of the structure of the motor representing embodiment 1 of the present utility model.
Fig. 2 is the figure amplified by the structure in the A frame of Fig. 1.
Fig. 3 is the chart of the resonance curve representing the axle sleeve using the motor at embodiment 1.
Fig. 4 is the chart of the resonance curve representing the axle sleeve using the motor at embodiment 1.
Detailed description of the invention
Hereinafter, in order to this utility model is illustrated in more detail, with reference to the accompanying drawings to being used for implementing mode of the present utility model illustrating.
Embodiment 1.
As it is shown in figure 1, motor 1 possesses: house the motor shell 6 of motor body 2；Axle 3 is supported the grease-enclosed formula ball bearing 10 for rotating；House the bear box 7 of the ball bearing 10 of a side；And it is installed on the axle sleeve 20 of the side, outer ring 12 of ball bearing 10.
Motor body 2 mainly possesses: axle 3；It is fixed on the rotor 4 of axle 3；And in the way of surrounding rotor 4, it is arranged at the stator 5 etc. of motor shell 6.Diagram is omitted for the structure (coil etc.) beyond above-mentioned parts.As motor body 2, it is assumed that for having the mechanism of the motor structure (such as, magnetic induction type motors constructs) of the high speed rotating of the rotating speed of about 30,000 rpm～about 100,000 rpm, but be not limited to this.
Axle 3 (the 1st parts), in the both ends of axle 3, is supported as rotating against by two ball bearing 10 matched in clearance respectively with housing 6,7 (the 2nd parts).This ball bearing 10 passes through to be folded with multiple ball 13 between inner ring 11 and outer ring 12 and enclose grease to form.Inner ring 11 contacts with axle 3, and outer ring 12 contacts with the axle sleeve 20 of motor shell 6 side or bear box 7 side.It addition, utilize pressing spring 9 to carry out exerting a force and being axially fixed by the ball bearing 10 being arranged at a side of motor shell 6.
Use higher in the inner heat of the ball bearing 10 of high speed rotating motor body 2, thereby, it is ensured that heat dispersion is critically important.It addition, also need to make the vibration of the axle 3 of high speed rotating to decay.Therefore, in present embodiment 1, use the axle sleeve 20 that there is heat radiation with the function of vibration decay.
As shown in the enlarged drawing of Fig. 2, axle sleeve 20 is made up of the metal parts 22 of the resin component 21 of drum and at least inner and outer circumferential surfaces of covering resin parts 21.Metal parts 22 is made into the toroidal of section U-shaped by cutting or punching press (drawing processing), and resin by injection material and molding resin component 21 inside it.When injecting, prevent from producing the situation in gap between metal parts 22 and resin component 21 by management resin by injection amount.If this is because produce gap, then the heat transfer efficiency of axle sleeve 20 is deteriorated.
This axle sleeve 20 is pressed into and is embedded in ball bearing 10, makes the inner peripheral surface side of metal parts 22 contact with 12, the outer ring of ball bearing 10, and make the outer peripheral face side of metal parts 22 contact with motor shell 6 or bear box 7.By press-in axle sleeve 20 and ball bearing 10, prevent from producing the situation in gap in face contact portion.Further, since axle sleeve 20 contacts for face, so the heat transfer efficiency between ball bearing 10, axle sleeve 20 and motor shell 6 (or bear box 7) improves, heat dispersion improves.
Motor shell 6 and bear box 7 use the aluminum that pyroconductivity is high, such as, made by die cast.Additionally, it is preferred that the peripheral part opposed with axle sleeve 20 at motor shell 6 arranges fin 6a, improve heat dispersion.Again it is preferred to the peripheral part opposed with axle sleeve 20 at bear box 7 arranges fin 7a, improve heat dispersion.
Though it addition, omit diagram but it also may arrange water-cooled path etc. at motor shell 6 and bear box 7, improve heat dispersion.
Produced by ball bearing 10 major part heat via metal parts 22 to motor shell 6 heat conduction (heat transfer path B1 of Fig. 2), and from fin 6a dispel the heat (heat dissipation path C of Fig. 2).
Additionally, a part for heat produced by ball bearing 10 via the metal parts 22 of side, outer ring 12, resin component 21, motor shell 6 side metal parts 22 to motor shell 6 heat conduction (heat transfer path B2 of Fig. 2), and dispel the heat (heat dissipation path C of Fig. 2) from fin 6a.
Though the diagram of omission, but the ball bearing 10 being arranged at bear box 7 also constitutes same heat transfer path and heat dissipation path.
Herein, axle sleeve 20 is described in detail.
Resin component 21 is formed as surrounding the drum of ball bearing 10.This resin component 21 mainly undertakes the function of the vibration decay making axle 3, it is possible to changed hardness adjusted vibration-damping effect by change resin material (or elastomeric material).Such as, in the case of to silicon system or butyl system elastomeric material (macromolecular material) additional attenuation effect, based elastomeric material adds carbon (carbon) and resin extender etc..Now, it is possible to changed the size of vibration-damping effect by increase and decrease addition.
Therefore, it is possible to be not accompanied by the shape change of axle sleeve 20 and vibration fade performance be managed.
The resonance curve of axle sleeve 20 is shown in Fig. 3 and Fig. 4.The transverse axis of each chart is frequency, and the longitudinal axis is resonance multiplying power.In figure 3, if increasing the hardness of resin component 21, then resonance curve is changed to L1 from L0, and resonant frequency (natural frequency) rises to f1 from f0.On the other hand, in the diagram, if reducing the hardness of resin component 21, then resonance curve is changed to L2 from L0, and resonance multiplying power drops to p2 from p0.
Therefore, according to the frequency of the axle 3 as vibration source, the hardness of change resin component 21, and adjust either one or both sides of resonant frequency and resonance multiplying power such that it is able to adjust vibration fade performance.
It addition, axle sleeve 20 is because of the heating of ball bearing 10, temperature rises, and therefore heat-curing resin material is preferably used for resin component 21.
Further, in order to improve the heat dispersion through heat transfer path B2 as shown in Figure 2, preferably resin component 21 is used the resin material of the heat dispersion with at least more than 0.3W/mK.
Radiating effect can be adjusted by the resin material (or elastomeric material) of change resin component 21.
Generally, resin material (polyphenylene sulfide is made；PPS, nylon, epoxy resin) in the case of high heat radiationization, based resin material interpolation high thermal conductivity filler.Now, it is possible to changed the size of radiating effect by increase and decrease addition.
Therefore, it is possible to be not accompanied by the shape change of axle sleeve 20 and heat dispersion be managed.
On the other hand, the metal parts 22 of axle sleeve 20 is the circle ring part being formed as U-shaped along the section of the axial rotary of axle 3, and covering resin parts 21.This metal parts 22 is mainly undertaken and to motor shell 6 or bear box 7 heat conduction, the heating of ball bearing 10 is carried out the function dispelled the heat, and uses the metal material with heat conductivity to constitute.
It addition, metal parts 22 is preferably used the metal material (such as, spring steel material) lower than outer ring 12 rigidity of ball bearing 10.Thus, when axle sleeve 20 is pressed into ball bearing 10, the deformation of the outer ring 12 of suppression ball bearing 10, do not make the internal clearance of ball bearing 10 reduce.
It addition, the Inner peripheral portions of the open side of the U-shaped of metal parts 22 is implemented C chamfering or R chamfering arranges chamfered section 23.This chamfered section 23 when axle sleeve 20 being pressed into ball bearing 10 as guide portion function.Thus, the assembling property of axle sleeve 20 improves.
Further, make the Inner peripheral portions of bending part 24 side of the U-shaped of metal parts 22 at multiple location bendings to arrange many edge 25.These many edge 25 actively deform when axle sleeve 20 is pressed into ball bearing 10, absorb the stress putting on bending part 24, therefore, it is possible to guarantee that metal parts 22 contacts with the face of outer ring 12.
It follows that an example of the assembling sequence of motor 1 is illustrated.In this example, initially assemble motor shell 6 side, then assemble bear box 7 side but it also may for contrary order.
First, axle sleeve 20 is pressed into the ball bearing 10 of motor shell 6 side, thus this axle sleeve 20 is pressed into motor shell 6.Then, pressing spring 9 is arranged at an end face of ball bearing 10, utilizes the internal diameter location pressing spring 9 of axle sleeve 20.Then, by axle 3 matched in clearance in ball bearing 10.Thus become and be assembled with ball bearing 10, axle sleeve 20 and the state of axle 3 at motor shell 6.
Then, axle sleeve 20 is pressed into the ball bearing 10 of bear box 7 side, thus this axle sleeve 20 is pressed into bear box 7.Then, axle 3 matched in clearance of motor shell 6 will be assembled in the ball bearing 10 of bear box 7 side.Finally utilize the butted part of the band 8 fastening bear box 7 such as (or bolt) and motor shell 6.
Above, according to embodiment 1, axle sleeve 20 is made up of the metal parts 22 of the resin component 21 of drum and at least inner and outer circumferential surfaces that covers this resin component 21, and be arranged between the outer ring 12 of ball bearing 10 and motor shell 6 (or bear box 7), metal parts 22 is configured to the outer ring 12 with ball bearing 10 and motor shell 6 (or bear box 7) contacts in face respectively.Therefore, it is possible to obtain heat radiation and the effect of vibration decay easily with parts.Further, since metal parts 22 contacts with outer ring 12 and motor shell 6 (or bear box 7) face of ball bearing 10, so improving via the heat dispersion of heat transfer path B2 (shown in Fig. 2).
It addition, according to embodiment 1, the section of the axial rotary along axle 3 of the metal parts 22 of axle sleeve 20 is U-shaped, and at multiple location bendings, the bending part 24 of this U-shaped is formed as many edge 25.
Therefore, it is possible to the heat of ball bearing 10 is dispelled the heat by heat transfer path B1 (shown in Fig. 2) efficiently that constituted via the metal parts 22 of section U-shaped.It addition, when axle sleeve 20 is pressed into ball bearing 10, many edge 25 actively deform, absorb the stress of the inner peripheral surface putting on metal parts 22, therefore, it is possible to guarantee that metal parts 22 contacts with the face of the outer ring 12 of ball bearing 10.
It addition, according to embodiment 1, axle sleeve 20 by either one of the material of change resin component 21 and hardness or both sides, can adjust either one or both sides of resonance multiplying power and resonant frequency.Thereby, it is possible to do not change the shape of axle sleeve 20 and make vibration fade performance improve.
It addition, according to embodiment 1, be made up of the resin component 21 of axle sleeve 20 resin material with heat dispersion, therefore, it is possible to do not change the shape of axle sleeve 20 and make heat dispersion improve.
It addition, according to embodiment 1, axle sleeve 20 is to form, therefore, it is possible to do not produce gap between metal parts 22 and resin component 21 such that it is able to obtain high-heat conductive efficency by injecting the resin component 21 with Thermocurable to metal parts 22.It addition, by the resin component 21 using Thermocurable, it is not necessary to the peristome of the metal parts 22 of closure section U-shaped.
Further, moisture curable resin can also be used as resin component 21.
It addition, according to embodiment 1, owing to axle sleeve 20 being pressed between the outer ring 12 of ball bearing 10 and motor shell 6 (or bear box 7), it is possible to be allowed to seamlessly be close to.Therefore, it is possible to the heat of ball bearing 10 is dispelled the heat to outside from motor shell 6 (or bear box 7) efficiently via axle sleeve 20.
It addition, according to embodiment 1, owing to being made up of motor shell 6 and bear box 7 aluminum that pyroconductivity is high, it is possible to dispel the heat efficiently.
It addition, in the above description, the example that will be provided with the ball bearing 10 bearing construction with axle sleeve 20 and be applied to motor 1 is illustrated, but lathe etc. can also be applied to.
Should illustrate, this utility model can deform or omit the arbitrary element of embodiment in the range of its utility model to the arbitrary element of embodiment.
Industrial utilizes feasibility
As described above, bearing construction of the present utility model is provided with the axle sleeve of the effect with heat radiation and vibration decay between grease-enclosed formula ball bearing and housing, is consequently adapted to use the motor etc. at high speed rotating.
Description of reference numerals
1 ... motor；2 ... motor body；3 ... axle (the 1st parts)；4 ... rotor；5 ... stator；6 ... motor shell (the 2nd parts)；6a, 7a ... fin；7 ... bear box (the 2nd parts)；8 ... band；9 ... pressing spring；10 ... ball bearing；11 ... inner ring；12 ... outer ring；13 ... ball；20 ... axle sleeve；21 ... resin component；22 ... metal parts；23 ... chamfered section；24 ... bending part；25 ... many edge.
Claims (8)
1. a motor, possesses:
Axle, it is fixed with rotor；
Housing, it is provided with stator in the way of surrounding described rotor；And
Grease-enclosed formula ball bearing, described axle is supported as can revolve relative to described housing by it
Turn,
Described motor is characterised by,
Possessing axle sleeve, it includes the resin component of drum and covers this resin component at least
The metal parts of inner and outer circumferential surfaces, described axle sleeve is arranged at the outer ring of described ball bearing and described housing
Between, described metal parts contacts in face respectively with the outer ring of described ball bearing and described housing.
Motor the most according to claim 1, it is characterised in that
The section of the axial rotary along described axle of the described metal parts of described axle sleeve is U-shaped,
The bending part of this U-shaped is polygon-shaped.
Motor the most according to claim 1, it is characterised in that
Described axle sleeve is by changing either one of the material of described resin component and hardness or double
Side, adjusts either one or both sides of resonance multiplying power and resonant frequency.
Motor the most according to claim 1, it is characterised in that
The described resin component of described axle sleeve has thermal diffusivity.
Motor the most according to claim 1, it is characterised in that
Described axle sleeve is formed as follows, it may be assumed that have thermosetting by injecting to described metal parts
The described resin component of the property changed or moisture curable forms.
Motor the most according to claim 1, it is characterised in that
Described axle sleeve is pressed between the outer ring of described ball bearing and described housing.
Motor the most according to claim 1, it is characterised in that
Described housing is made up of aluminum.
8. a bearing construction, it is characterised in that possess:
Grease-enclosed formula ball bearing, outside it will be fixed on the 1st parts of inner ring side and be fixed on
2nd parts carry of circle side is for rotating against；And
Axle sleeve, it includes the resin component of drum and covers at least inside and outside of this resin component
The metal parts of side face, described axle sleeve is arranged at the outer ring of described ball bearing and described 2nd parts
Between, described metal parts connects with the outer ring of described ball bearing and described 2nd parts face respectively
Touch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/079385 WO2015063882A1 (en) | 2013-10-30 | 2013-10-30 | Electric motor and bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205509736U true CN205509736U (en) | 2016-08-24 |
Family
ID=53003530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201390001252.5U Expired - Fee Related CN205509736U (en) | 2013-10-30 | 2013-10-30 | Motor and bearing structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5885896B2 (en) |
| CN (1) | CN205509736U (en) |
| WO (1) | WO2015063882A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357038A (en) * | 2016-10-14 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing chamber, motor enclosure having same and motor |
| CN110285137A (en) * | 2019-07-10 | 2019-09-27 | 安徽晨光精工机电科技有限公司 | A kind of rotational supporting structure for pressure vessel stirring device |
| CN111756164A (en) * | 2019-03-29 | 2020-10-09 | 日本电产株式会社 | Motor with a stator having a stator core |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018121923A1 (en) | 2018-09-07 | 2020-03-12 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Electric motor with heat dissipation for the motor shaft bearing |
| DE102018133290A1 (en) * | 2018-12-21 | 2020-06-25 | Bühler Motor GmbH | Electric motor |
| BR112022010365A2 (en) * | 2019-11-29 | 2022-08-16 | Weg Equipamentos Eletricos S/A | SWINGING ELECTRICAL MACHINE, BEARING ASSEMBLY AND DETUNING DEVICE |
| WO2024121879A1 (en) * | 2022-12-05 | 2024-06-13 | 三菱電機株式会社 | Electric motor and air conditioner |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57104756U (en) * | 1980-12-19 | 1982-06-28 | ||
| JPS63210413A (en) * | 1987-02-26 | 1988-09-01 | Fuji Tool & Die Co Ltd | Chain noise reducing mechanism in transfer mechanism |
| US5044784A (en) * | 1990-07-31 | 1991-09-03 | Eaton Corporation | Bearing isolator |
| DE4209953A1 (en) * | 1992-03-27 | 1993-09-30 | Freudenberg Carl Fa | Sealing arrangement |
| DE19625686B4 (en) * | 1996-06-27 | 2009-04-16 | Robert Bosch Gmbh | Eccentric arrangement, in particular for a reciprocating pump |
| JP3503794B2 (en) * | 1996-08-08 | 2004-03-08 | 三菱マテリアルシ−エムアイ株式会社 | motor |
-
2013
- 2013-10-30 CN CN201390001252.5U patent/CN205509736U/en not_active Expired - Fee Related
- 2013-10-30 JP JP2015544688A patent/JP5885896B2/en not_active Expired - Fee Related
- 2013-10-30 WO PCT/JP2013/079385 patent/WO2015063882A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357038A (en) * | 2016-10-14 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing chamber, motor enclosure having same and motor |
| CN111756164A (en) * | 2019-03-29 | 2020-10-09 | 日本电产株式会社 | Motor with a stator having a stator core |
| CN110285137A (en) * | 2019-07-10 | 2019-09-27 | 安徽晨光精工机电科技有限公司 | A kind of rotational supporting structure for pressure vessel stirring device |
| CN110285137B (en) * | 2019-07-10 | 2020-12-18 | 安徽晨光精工机电科技有限公司 | Rotary supporting structure for pressure vessel stirring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2015063882A1 (en) | 2017-03-09 |
| JP5885896B2 (en) | 2016-03-16 |
| WO2015063882A1 (en) | 2015-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205509736U (en) | Motor and bearing structure | |
| US20140209781A1 (en) | Vibration safe motor fixation in an actuator | |
| US20150381010A1 (en) | Electric machine with a cooling device, and method for producing said machine | |
| CN103051080A (en) | Rotary electric machine | |
| JP2013527740A (en) | Cooling device for electric motor | |
| JP2013227889A (en) | Electric supercharger | |
| JP5791875B2 (en) | damper | |
| TWM542082U (en) | Fan hub and shaft fixing structure, and fan thereof | |
| CN110896251A (en) | Electromagnetic machine and adjustable insert ring | |
| KR101627472B1 (en) | Impeller assembly and manufacturing method thereof | |
| CN204810039U (en) | Motor | |
| JP2010004618A (en) | Motor | |
| CN206272399U (en) | A kind of temperature with high efficiency type motor | |
| CN209948854U (en) | Driving motor and new energy automobile | |
| CN102042300B (en) | Bearing system | |
| JP2011109808A (en) | Cooling structure of motor | |
| JP2007507195A (en) | Device with components connected to each other via a press fit, in particular an electric machine | |
| CN110336404A (en) | Driving motor and new-energy automobile | |
| JPWO2019097710A1 (en) | Motor and method of manufacturing the same | |
| TW201829920A (en) | Structure for holding a fan hub to a bearing and fan using same | |
| CN209692515U (en) | The assembling structure of Gearbox and motor shaft | |
| CN102330298B (en) | Sewing machine head with motor | |
| JP2011094640A (en) | Torque fluctuation absorbing damper | |
| JP7433078B2 (en) | Liquid cooling device and rotating electric machine equipped with liquid cooling device | |
| JP2015129543A (en) | Torque fluctuation absorbing damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20191030 |