CN109217516A - Shaft core, rotor, motor and machine tool - Google Patents
Shaft core, rotor, motor and machine tool Download PDFInfo
- Publication number
- CN109217516A CN109217516A CN201811325399.5A CN201811325399A CN109217516A CN 109217516 A CN109217516 A CN 109217516A CN 201811325399 A CN201811325399 A CN 201811325399A CN 109217516 A CN109217516 A CN 109217516A
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- China
- Prior art keywords
- rotor
- central spindle
- motor
- construction section
- central
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 claims description 34
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a shaft core, a rotor, a motor and a machine tool, wherein the motor comprises the shaft core and the rotor, the shaft core comprises a rotor mounting section, the rotor is sleeved outside the rotor mounting section, and the inner circular surface of the rotor is in at least partial conical fit with the outer circular surface of the rotor mounting section. Above-mentioned motor, rotor and axle core pass through circular cone cooperation relatively fixed, and rotor and axle core pass through circular cone cooperation relatively fixed, consequently have guaranteed good dynamic balance when the assembly, dismantle the degree of difficulty less. Especially when the inner circle face of the rotor only has partial conical fit with the outer circle face of the rotor mounting section, the contact area of the rotor and the shaft core is reduced, so that the difficulty of detaching the rotor from the shaft core is further reduced, and the motor is convenient to overhaul and replace parts.
Description
Technical field
The present invention relates to mechanical production devices fields, more particularly to a kind of central spindle, rotor, motor and lathe.
Background technique
Currently, generally installing rotor using several method in the motor installation of the electro spindle of the lathes such as lathe:
1, hollow columned installation set is inlayed in rotor, the rotor interference for being inlaid with installation set is mounted on axis
It is interference fitted on core with central spindle.When dismantling rotor, then rotor is unloaded using the mode of oil pressure disassembling.
2, the direct interference of rotor is mounted in central spindle, magnitude of interference is generally between 0.03mm-0.04mm to guarantee rotor
It will not be relatively rotated with central spindle.
3, rotor keyway is opened up with central spindle respectively to be connected with each other in a manner of being connected by key.
But in the above-mentioned methods, the size range of the applicable rotor of method 1 is relatively narrow, when rotor it is undersized when then without
Method inlays installation set, and dismounts mode also convenience not fast enough.The disassembly difficulty of rotor in method 2 is larger, to the dress of motor
The replacement for matching, overhauling other parts brings inconvenience.Key connection in method 3 affects the dynamic balancing of electro spindle entirety, therefore
Be only applicable in the not high motor of electro spindle revolving speed, and and assembly difficulty it is larger, to the assembly of motor, the other parts of maintenance
Replacement brings inconvenience.
In conclusion the central spindle of the motor of the electro spindle of lathe is with rotor (it is the lesser rotor of size that spy is standby) steady at present
Fixed connection and while guarantee not relatively rotate, it is difficult to realize demand convenient to disassembly, thus for motor assembly,
Maintenance and the replacement of part bring difficulty.
Summary of the invention
Based on this, it is necessary to be difficult to asking for while guaranteeing mounting stability fast demountable for rotor and central spindle
Topic provides a kind of a kind of central spindle, rotor, electricity that dismounting speed can be improved while guaranteeing the mounting stability of rotor and central spindle
Machine and lathe.
A kind of motor, the motor include central spindle and rotor, and the central spindle includes rotor construction section, and the rotor is sheathed on
Outside the rotor construction section, the periphery at least partly Cone fit of the inner headed face of the rotor and the rotor construction section.
Above-mentioned motor, rotor is relatively fixed by Cone fit with central spindle, therefore lesser simultaneously in assembly, disassembly difficulty
It ensure that good dynamic balancing.Especially when the periphery of the inner headed face of rotor and rotor construction section only has part-conical cooperation
When, the contact area of rotor and central spindle is reduced, to further reduce the difficulty that rotor is dismantled from central spindle, is convenient for motor
Maintenance and part exchanging.
The inner headed face of the periphery of the rotor construction section and/or the rotor is circumferentially in one of the embodiments,
Offer escape groove.
The escape groove is multiple, central axis of multiple escape groove along the central spindle in one of the embodiments,
The setting of line direction interval.
In one of the embodiments, the periphery of the rotor construction section be not provided with the part of the escape groove with it is described
The part that the inner headed face of rotor is not provided with the escape groove all has identical self-locking in the central axial direction of the central spindle
Taper.
The motor further includes holding down assembly in one of the embodiments, and described hold down assembly is sheathed on the central spindle
And it is held in the end face of the one end of the rotor on the axis direction of the central spindle, described hold down assembly applies to the rotor
Along the pressing force of the axis direction of the central spindle.
Described in one of the embodiments, to hold down assembly including spacer and compressing member, the spacer is located at the rotor
Between the compressing member, the compressing member is threadedly coupled with the central spindle.
A kind of central spindle, is arranged with rotor outside the central spindle, and the inner headed face of the rotor has a taper, the central spindle include with
At least partly periphery of the rotor construction section of rotor engagement, the rotor construction section has taper to match with the rotor circular cone
It closes.
A kind of rotor, the rotor are sheathed on central spindle, and the periphery of the central spindle has taper, which is characterized in that described
At least partly inner headed face of rotor have taper with the central spindle Cone fit.
A kind of lathe, the lathe include above-mentioned motor.
The lathe is lathe in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the part-structure of the motor of one embodiment of the invention；
Fig. 2 is central spindle, rotor, stator and the assembling schematic diagram to hold down assembly of motor shown in FIG. 1；
Fig. 3 is central spindle, rotor, stator and the assembling schematic diagram to hold down assembly of the motor of another embodiment；
Fig. 4 is central spindle, rotor, stator and the assembling schematic diagram to hold down assembly of the motor of another embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, a kind of motor 100 for being installed on lathe of the embodiment of the present invention, including central spindle 20, rotor 40 with
And stator 60.Wherein, it is outer and be coaxially disposed with central spindle 20 to be sheathed on central spindle 20 for rotor 40, stator 60 be sheathed on rotor 40 it is outer and with
Rotor 40 is coaxially disposed.Based on electromagnetic induction principle, rotor 40 can under the action of stator 60 relative stator 60 around center
Axis rotation, and then 20 relative stator 60 of central spindle is driven to rotate output torque around center axis, to realize electric energy to machine
The conversion of tool energy.Specifically in the examples below, the lathe of the motor 100 is installed for the lathe for turner.It can be with
Understand, in some other embodiment, lathe specifically may further be embodied as the equipment with other processing methods.
Fig. 1 and Fig. 2 is please referred to, central spindle 20 includes the rotor construction section for cooperating with rotor 40, and rotor construction section is in axis
The length of the central axial direction of core 20 is identical as length of the rotor 40 in the central axial direction of central spindle 20.Rotor 40 is arranged
In outside rotor construction section, the inner headed face of rotor 40 and the periphery at least partly Cone fit of rotor construction section.
In this way, rotor 40 is relatively fixed by Cone fit with central spindle 20, therefore lesser simultaneously in assembly, disassembly difficulty
It ensure that good dynamic balancing.Especially when the periphery of the inner headed face of rotor 40 and rotor construction section only has part-conical cooperation
When, the contact area of rotor 40 Yu central spindle 20 is reduced, so that the difficulty that rotor 40 is dismantled from central spindle 20 is further reduced,
Maintenance and part exchanging convenient for motor 100.
Specifically in some embodiments, the periphery of rotor construction section be not provided with the part of escape groove 50 in rotor 40
The part that disc is not provided with escape groove 50 all has identical self locking taper in the central axial direction of central spindle 20, therefore is based on
While locking phenomenon, central spindle 20 and rotor 40 cannot rotate relative to each other, rotor 40 can be applied along the central axis side of rotor 40
Rotor 40 is easily disengaged more from central spindle 20 to the power of effect.
Further, the periphery of the rotor construction section of central spindle 20 and/or the inner headed face of rotor 40 are circumferentially offered and are kept away
Slot 50 is allowed, so as to have gap between rotor 40 and rotor construction section, to make the rotor 40 only partially be in rotor construction section
Cone fit, further decreases the contact area of rotor 40 and central spindle 20 to reduce the frictional force between rotor 40 and central spindle 20,
To reduce the disassembly difficulty of rotor 40.It is appreciated that the shape of escape groove 50 is unlimited, and in some embodiments, escape groove 50
In the circular ring shape of the central axis around central spindle 20, and in further embodiments, escape groove 50 can also be in around central spindle 20
The non-close of central axis it is arc-shaped, the size of the central angle of escape groove 50 can be set as needed.
As shown in Figure 1, specifically in one embodiment, since the difficulty of processing of the periphery of central spindle 20 is less than in rotor 40
The difficulty of processing of disc, therefore escape groove 50 is only opened in the periphery of central spindle 20.
Specifically in this embodiment, the inner headed face of rotor 40 is from a side end face of rotor 40 along the central axis side of rotor 40
To inclination and the smooth another side end face for extending to rotor 40, the internal diameter of the cross section of rotor 40 is along the central axis side of rotor 40
Uniformly reduce to from one end to the other end, the Internal periphery of the longitudinal section vertical with above-mentioned cross section of rotor 40 is in isosceles trapezoid.
The middle part of the periphery of rotor construction section circumferentially offers an escape groove 50, in the central axis side of central spindle 20
Upwards, the rotor construction section at the both ends of escape groove 50 have taper identical with the inner headed face of rotor 40, thus respectively with its
The inner headed face of the rotor 40 corresponding in the radial direction of central spindle 20 is mutually matched.
As shown in Fig. 2, in another embodiment, escape groove 50 is only opened in the inner headed face of rotor 40, rotor construction section
Periphery along the central axial direction inclination of central spindle 20 and smooth extend to the another of rotor construction section from rotor construction section one end
The internal diameter of one end, the cross section of central spindle 20 uniformly reduces along the central axial direction of central spindle 20 from one end to the other end, rotor peace
Filling the section longitudinal section vertical with above-mentioned cross section is in isosceles trapezoid.
The middle part of the inner headed face of rotor 40 circumferentially offers an escape groove 50, in the central axial direction of rotor 40
On, the inner headed face at the both ends of escape groove 50 has taper identical with the periphery of central spindle 20, thus respectively with it in rotor 40
The periphery of central spindle 20 corresponding in the radial direction be mutually matched.
In another embodiment, the difference with above-mentioned two embodiment is, the inner headed face and rotor of rotor construction section
Corresponding position is respectively equipped with interconnected escape groove 50 to 40 periphery radially.
As shown in figure 3, the escape groove 50 in some other embodiment, in the central axial direction of central spindle 20 (rotor 40)
Can also be to be multiple, multiple escape groove 50 are arranged at intervals at along the central axial direction of central spindle 20 in rotor 40 and/or rotor installation
Section.In further embodiments, the escape groove 50 in the circumferential direction of central spindle 20 (rotor 40) can also be multiple, multiple arc-shaped
Escape groove 50 be arranged at intervals at rotor 40 and/or rotor construction section around the central axis of central spindle 20.
Further, in the above-described embodiments, the inner headed face of rotor construction section and the taper of the periphery of central spindle 20 are less than
8 ° self-locking to realize.Preferably, the taper of the inner headed face of rotor construction section and the periphery of central spindle 20 is 1/187, thus protecting
While card rotor 40 and relatively fixed central spindle 20, rotor 40 can be from easy removal in central spindle 20.In addition, the depth of escape groove 50
It can be 0.2-0.3mm, the length in the central axial direction of central spindle 20 of escape groove 50 can be arranged according to actual needs, thus
In the case where guaranteeing the intensity of rotor 40 and central spindle 20 and there is enough contacts area without relatively rotating between the two,
Prevent rotor 40 and central spindle 20 viscous glutinous, in order to which rotor 40 is dismantled from central spindle 20.
Please continue to refer to Fig. 1 and Fig. 2, motor 100 further includes holding down assembly 80, and holding down assembly 80 is sheathed on central spindle 20 and supports
Be held in the lesser end face of size of the one end of rotor 40 on the axis direction of central spindle 20, hold down assembly 80 to rotor 40 apply with
The opposite pressing force of the installation direction of rotor 40, to be further ensured that rotor 40 and central spindle 20 will not occur relatively at work
Rotation, makes the job stability with higher of motor 100.
Specifically in some embodiments, holding down assembly 80 includes spacer 81 and compressing member 83, spacer 81 be located at rotor 40 and
Between compressing member, compressing member 83 is threadedly coupled fixed with opposite central spindle 20 with central spindle 20.During the installation process, it is only necessary to torque will be used
Compressing member 83 is lock onto central spindle 20 by the devices such as spanner.Specifically in one embodiment, compressing member 83 is equipped with internal screw thread
Nut, one end of the rotor construction section of central spindle 20 be equipped with the matched external screw thread of aforementioned internal screw thread, thus with 83 spiral shell of compressing member
Line connection.
The disassembly mode of the rotor 40 of above-mentioned motor 100 is as follows:
Firstly, the tool covers such as pulling off sleeves are set to the periphery of rotor 40 and make pulling off sleeves relative rotor 40 in rotor
It is fixed in 40 central axial direction.Then pulling off sleeves are applied in action direction and central spindle 20 by devices such as press machines
Identical and opposite with the installation direction of rotor 40 pressure of the extending direction of mandrel line, so that rotor 40 be made to be easily disengaged from along axial direction
Central spindle 20 finally completes the disassembly of rotor 40.
Above-mentioned motor 100 and the lathe equipped with it are connected with each other since central spindle 20 is cooperated with rotor 40 by part-conical,
Therefore it will not influence the dynamic balancing of motor 100 while being easily installed, dismantling, to for motor 100 and be equipped with the motor 100
The maintenance of lathe, part exchanging provides convenience.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of motor (100), which is characterized in that the motor (100) includes central spindle (20) and rotor (40), the central spindle
(20) include rotor construction section, the rotor (40) is sheathed on outside the rotor construction section, the inner headed face of the rotor (40) with
The periphery at least partly Cone fit of the rotor construction section.
2. motor (100) according to claim 1, which is characterized in that the periphery of the rotor construction section and/or described
The inner headed face of rotor (40) circumferentially offers escape groove (50).
3. motor (100) according to claim 2, which is characterized in that the escape groove (50) be it is multiple, it is multiple described to keep away
Slot (50) is allowed to be arranged along the central axial direction interval of the central spindle (20).
4. motor (100) according to claim 2, which is characterized in that the periphery of the rotor construction section is not provided with institute
The inner headed face of the part and the rotor (40) of stating escape groove (50) is not provided with the part of the escape groove (50) in the central spindle
(20) identical self locking taper is all had in central axial direction.
5. motor (100) according to claim 1, which is characterized in that the motor (100) further includes holding down assembly
(80), described hold down assembly (80) are sheathed on the central spindle (20) and are held in the rotor (40) in the axis of the central spindle (20)
The end face of one end on line direction, hold down assembly (80) apply to the rotor (40) along the axis side of the central spindle (20)
To pressing force.
6. motor (100) according to claim 5, which is characterized in that it is described hold down assembly (80) include spacer (81) with
Compressing member (83), the spacer (81) between the rotor (40) and the compressing member (83), the compressing member (83) with
The central spindle (20) is threadedly coupled.
7. a kind of central spindle (20), the central spindle (20) is arranged with rotor (40) outside, and the inner headed face of the rotor (40) has taper,
It is characterized in that, the central spindle (20) includes the rotor construction section with rotor (40) cooperation, at least portion of the rotor construction section
Exceptionally disc have taper with the rotor (40) Cone fit.
8. a kind of rotor (40), the rotor (40) is sheathed on central spindle (20), and the periphery of the central spindle (20) has taper,
Be characterized in that, at least partly inner headed face of the rotor (40) have taper with the central spindle (20) Cone fit.
9. a kind of lathe, which is characterized in that the lathe includes motor as claimed in any one of claims 1 to 6 (100).
10. lathe according to claim 9, which is characterized in that the lathe is lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325399.5A CN109217516A (en) | 2018-11-08 | 2018-11-08 | Shaft core, rotor, motor and machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325399.5A CN109217516A (en) | 2018-11-08 | 2018-11-08 | Shaft core, rotor, motor and machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109217516A true CN109217516A (en) | 2019-01-15 |
Family
ID=64995941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811325399.5A Pending CN109217516A (en) | 2018-11-08 | 2018-11-08 | Shaft core, rotor, motor and machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109217516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816135A (en) * | 2020-12-29 | 2021-05-18 | 霍山嘉远智能制造有限公司 | Impeller dynamic balance device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928345A (en) * | 2005-09-06 | 2007-03-14 | 株式会社电装 | Fluid pump and motor and method for manufacturing same |
| US20080012434A1 (en) * | 2006-06-30 | 2008-01-17 | Delta Electronics, Inc. | Motor and rotor structure thereof |
| CN103891106A (en) * | 2011-11-18 | 2014-06-25 | 三菱电机株式会社 | Rotor for rotating electric machine and motor for electric power steering |
| CN105186741A (en) * | 2014-05-27 | 2015-12-23 | 比亚迪股份有限公司 | Motor rotor and motor therewith |
| CN106787326A (en) * | 2016-12-15 | 2017-05-31 | 南通金驰机电有限公司 | High-speed electric expreess locomotive based on high rigidity rotor structure |
| CN208849570U (en) * | 2018-11-08 | 2019-05-10 | 珠海格力电器股份有限公司 | Shaft core, rotor, motor and machine tool |
-
2018
- 2018-11-08 CN CN201811325399.5A patent/CN109217516A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928345A (en) * | 2005-09-06 | 2007-03-14 | 株式会社电装 | Fluid pump and motor and method for manufacturing same |
| US20080012434A1 (en) * | 2006-06-30 | 2008-01-17 | Delta Electronics, Inc. | Motor and rotor structure thereof |
| CN103891106A (en) * | 2011-11-18 | 2014-06-25 | 三菱电机株式会社 | Rotor for rotating electric machine and motor for electric power steering |
| CN105186741A (en) * | 2014-05-27 | 2015-12-23 | 比亚迪股份有限公司 | Motor rotor and motor therewith |
| CN106787326A (en) * | 2016-12-15 | 2017-05-31 | 南通金驰机电有限公司 | High-speed electric expreess locomotive based on high rigidity rotor structure |
| CN208849570U (en) * | 2018-11-08 | 2019-05-10 | 珠海格力电器股份有限公司 | Shaft core, rotor, motor and machine tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816135A (en) * | 2020-12-29 | 2021-05-18 | 霍山嘉远智能制造有限公司 | Impeller dynamic balance device |
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