CN100521451C - Combining apparatus for spindle built-in motor rotor and spindle - Google Patents
Combining apparatus for spindle built-in motor rotor and spindle Download PDFInfo
- Publication number
- CN100521451C CN100521451C CNB2004100615394A CN200410061539A CN100521451C CN 100521451 C CN100521451 C CN 100521451C CN B2004100615394 A CNB2004100615394 A CN B2004100615394A CN 200410061539 A CN200410061539 A CN 200410061539A CN 100521451 C CN100521451 C CN 100521451C
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- main shaft
- rotor
- base portion
- rotor base
- ring
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Centrifugal Separators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention provides a combination device of rotor and principal shaft for a principal shaft built-in type electric motor. Said combination device in accordance with the present invention comprises a cylinder shaped rotor base (50) fixed internal circle (32) of a rotor and capable of separably externally embedded at the periphery (22) of the principal shaft; a connecting mechanism used for linking the rotor base (50) and the principal shaft (20) and driving them to rotate integrally; and a fixture mechanism used for fixing the end part of the rotor base (50) to the principal shaft (20) and preventing the rotor base (50) from being drawn from the principal shaft (20). By constituting easy separation and combination of the principal shaft and the rotor, The present invention can easily execute maintenance and replacement of the principal shaft and the rotor. Furthermore, since it is not necessary to heat the rotor or cool the principal shaft during the combination and separation course of the principal shaft and the rotor, the principal shaft and the rotor can be prevented from heat distortion.
Description
Technical field
The present invention relates to a kind of rotor of spindle built-in motor and the coupling apparatus of main shaft, say in more detail, relate to a kind of rotor of spindle built-in motor and the coupling apparatus of main shaft, it can make rotor and main shaft combination more easily and separate.
Background technology
The work mechanism of numerically controlled lathe, machining center etc. has the spindle drive motor that main shaft is rotated.Recently, spindle drive motor occurs and be deformed into trend with (built-in) formula of packing into of integrated spindle axis setting.Built-in spindle drive motor can make main shaft noiselessness and high speed rotating quiveringly.
This built-in spindle drive motor as shown in Figure 1, has motor casing 10.Motor casing 10 constitutes and surrounds main shaft 20., between motor casing 10 and main shaft 20, bearing 12 is installed respectively here, main shaft 20 can be rotated.
And spindle drive motor also has stator 40, and this stator 40 is in the periphery of rotor 30, with rotor 30 on the periphery that is embedded in main shaft 20 outward clearance t and being provided with at interval.Certainly stator 40 is fixed on the inner peripheral surface of motor casing 10.
And rotor 30 and main shaft 20 carry out chimeric to heat chimeric mode usually.In the chimeric mode of heating, the size of the periphery 22 of interior all 32 and main shaft 20 of adjusting rotor 30, make it to have the chimeric amount (interior all 32 size of rotor 30 is less than the size of the periphery 22 of main shaft 20) of regulation, then, rotor 30 to week 32 in having is heated to uniform temperature, week 32 enlarges in making, make main shaft 20 be entrenched in expansion interior all 32 on.Finish after main shaft 20 chimeric, the rotor 30 that outer setting-in is fitted on the main shaft 20 slowly cools off, and thus, interior all 32 of rotor 30 is waled main shaft 20 tightly, combines with main shaft 20.As a result, rotor 30 can securely be combined mutually with main shaft 20.
Yet this existing heating is chimeric, has the advantage that makes rotor 30 and main shaft 20 mutual fastening combinations, and the very shortcoming of difficulty of separation rotor 30 and main shaft 20 is also arranged.
Just, when main shaft 20 or rotor 30 being safeguarded or change, must be separately with the main shaft 20 that interosculates and rotor 30.Yet, for main shaft 20 and the rotor 30 that will interosculate separates, must heat rotor 30, after making interior all 32 expansions of rotor 30, take out main shaft 20 from interior all 32 of rotor 30, perhaps make main shaft 20 cooling, the periphery 22 of main shaft 20 is shunk after, from interior all 32 of rotor 30 main shaft 20 taken out.Need a lot of time and labour like this, particularly exist, perhaps make main shaft 20 coolings, need the problem points of heater and cooling device in addition for rotor 30 is heated.
In addition, rotor 30 is being heated or making in the process of main shaft 20 coolings, also existing main shaft 20 and rotor 30 that the problem points of all thermal deformations takes place, having the discarded main shaft 20 of thermal deformation and the problem points of rotor 30 of taking place of having to thus.
Summary of the invention
Therefore, the present invention makes in order to solve the above problems, and its purpose is, a kind of rotor of spindle built-in motor and the coupling apparatus of main shaft are provided, it constitutes main shaft is separated or combination easily with rotor, can easily safeguard and change main shaft and rotor thus.
Another object of the present invention is to, a kind of rotor of spindle built-in motor and the coupling apparatus of main shaft are provided, even do not heat rotor or cooling main shaft, also can make main shaft and rotor in conjunction with or separate, can prevent main shaft and rotor generation thermal deformation thus.
For achieving the above object, the rotor of spindle built-in motor of the present invention and the coupling apparatus of main shaft are used to make main shaft and rotor combination, it is characterized in that, have: be fixedly installed on the interior week of above-mentioned rotor, the outer separably cylindric rotor base portion that is embedded in the periphery of above-mentioned main shaft; The jockey that above-mentioned rotor base portion and above-mentioned main shaft can unitary rotation ground be connected both; The end of above-mentioned rotor base portion is fixed on the above-mentioned main shaft, so that the fixture that above-mentioned rotor base portion can not be extracted from above-mentioned main shaft.
Preferred above-mentioned jockey is by the key of the periphery that embeds above-mentioned main shaft with the forming in interior week of above-mentioned rotor base portion, so that the keyway that above-mentioned key can be chimeric formation.
Preferred said fixing device comprises the interior all ends that are arranged on above-mentioned rotor base portion, from then on the end side diameter slope closed surface that diminishes in turn and form to the inside; Between above-mentioned slope closed surface and above-mentioned main shaft and the wedge-like ring of installing; And above-mentioned wedge-like ring is pressed in pressing device between above-mentioned slope closed surface and the above-mentioned main shaft, above-mentioned pressing device is by the threaded portion on the periphery that is formed on above-mentioned main shaft, the threaded portion screws togather therewith, moving along above-mentioned threaded portion spiral shell, above-mentioned wedge-like ring is pressed into pushing nut between above-mentioned slope closed surface and the above-mentioned main shaft.
For preventing the disengaging of above-mentioned pushing nut, preferably also comprise making above-mentioned pushing nut be connected jockey on the above-mentioned main shaft.Above-mentioned jockey comprises and is formed on the screw on the above-mentioned pushing nut and penetrates above-mentioned screw, is crimped on the attachment screw on the above-mentioned main shaft.
Preferred also comprising from the pulling attachment of the above-mentioned wedge-like ring of choosing between the slope closed surface of above-mentioned rotor base portion and the above-mentioned main shaft.Above-mentioned pulling attachment comprises the slip-off preventing screw, and this slip-off preventing screw is under the state that screws togather with above-mentioned wedge-like ring, and its end is supported by the terminal base portion, rotates by external force, and above-mentioned wedge-like ring is left between above-mentioned slope closed surface and above-mentioned main shaft.
Preferably form the stage portion that axle supports above-mentioned rotor base portion on the periphery of above-mentioned main shaft, being situated between between above-mentioned stage portion and above-mentioned rotor base portion has packing ring.
Preferred above-mentioned rotor base portion is entrenched on the interior week of above-mentioned rotor by heating chimeric mode.
The coupling apparatus of rotor of the present invention and main shaft makes that by easy formation main shaft and rotor can separating and combining, can carry out the maintenance and the replacing of main shaft and rotor easily.In addition and since main shaft and rotor in conjunction with separating process in, do not need to heat rotor or cooling main shaft, can prevent main shaft and rotor generation thermal deformation.
Description of drawings
Fig. 1 is the side cross-sectional view of formation of the spindle built-in motor of the general work mechanism of expression.
Fig. 2 is the sectional view of formation of the coupling apparatus of expression rotor of spindle built-in motor of the present invention and main shaft.
Fig. 3 is the decomposition diagram of formation of the coupling apparatus of expression rotor of spindle built-in motor of the present invention and main shaft.
Fig. 4 is the wedge-like ring and the amplification sectional view that pushes nut of the coupling apparatus of rotor of the present invention of expression formation in detail and main shaft.
Fig. 5 a～Fig. 5 d is a sectional view of representing the cohesive process of rotor and main shaft in turn.
Embodiment
Below, with reference to the accompanying drawings, the preferred implementation of the coupling apparatus of the rotor of spindle built-in motor of the present invention and main shaft is elaborated.And, in the following description, the part identical with existing inscape is marked with identical label describes.
At first, with reference to Fig. 2 and Fig. 3, coupling apparatus of the present invention has rotor base portion 50.Rotor base portion 50 is the cylinders with interior week 52 and periphery 54, forms flange part 55 in the upper end of periphery 54.
Such rotor base portion 50 be fixedly installed on rotor 30 interior all 32 on.Especially with heat chimeric mode be entrenched in rotor base portion 50 interior all 52 on.Interior all 32 the rotor base portion 50 that heating is entrenched in rotor base portion 50 be fixedly installed on rotor 30 interior all 32 on, therefore constitute with rotor 30 one.Here, rotor base portion 50 be heated be fitted to rotor 30 interior all 32 on process in, the flange part 55 that forms on top is supported by the upper end of rotor 30.
And, the rotor base portion 50 of Gou Chenging like this, with one be fixedly installed on rotor 30 interior all 32 on state, be embedded in outward on the periphery 22 of main shaft 20.Particularly constitute the periphery 22 that embeds main shaft 20 from top.On the periphery 22 of main shaft 20, be formed for the stage portion 24 of the lower end of a supports main shaft 20 along periphery here.Between the lower end of stage portion 24 and main shaft 20, be situated between packing ring 26 is arranged.Packing ring 26 is the parts that are used for adjusting the height of rotor 30 relative main shafts 20, therefore the position of rotor 30 relative stator 40 (with reference to Fig. 1) can be regulated.Therefore, stator 40 and rotor 30 are located mutually.
In addition, with reference to Fig. 2 and Fig. 3, coupling apparatus of the present invention has the jockey that rotor base portion 50 is connected with main shaft 20 one.
This jockey by the key 60 of the periphery 22 that embeds main shaft 20 and rotor base portion 50 interior all 52 on forms so that keyway 62 formations that this key 60 can be chimeric.Particularly keyway 62, constitute to transfer opening, are embedded in outside rotor base portion 50 in the process on the periphery 22 of main shaft 20, combine with key 60 naturally.
Such jockey connects rotor base portion 50 and main shaft 20 by one, and rotor base portion 50, rotor 30 and main shaft 20 can be rotated simultaneously integratedly.
With reference to Fig. 2 and Fig. 3, coupling apparatus of the present invention, it is fixing to have the rotor base portion that makes on the periphery 22 that is entrenched in main shaft 20 50, and the fixture that it can not be extracted from main shaft 20.
This fixture as shown in Figure 3 and Figure 4, has interior all 52 the upper end that is arranged on rotor base portion 50, from then on the end side diameter slope closed surface 70 that diminishes in turn and form to the inside; Be embedded in the state on the periphery 22 of main shaft 20 in addition, the wedge-like ring of installing between slope closed surface 70 and main shaft 20 72; And this wedge-like ring 72 is pressed in pressing device 74 between slope closed surface 70 and the main shaft 20.
Wedge-like ring 72 is by between slope closed surface 70 and main shaft 20 and 72a of wedge portion that installs and the flange part 72b formation that forms in the upper end of the 72a of this wedge portion.Particularly the 72a of wedge portion embeds between slope closed surface 70 and the main shaft 20, and rotor base portion 50 and main shaft 20 are connected as a single entity.At this moment, flange part 72b is supported by the flange part 55 of rotor base portion 50.
The pushing nut 74b that pressing device 74 screws togather by the threaded portion 74a on the periphery 22 that is formed on main shaft 20 with threaded portion 74a constitutes.It is moving along threaded portion 74a spiral shell particularly to push nut 74b, plays wedge-like ring 72 is pressed into effect between slope closed surface 70 and the main shaft 20.
Such fixture, embed wedge-like ring 72 between the slope closed surface 70 of rotor base portions 50 and the main shaft 20 after, by pushing nut 74b pushing wedge-like ring 72, rotor base portion 50 and main shaft 20 can one be fixed.Therefore, can prevent that rotor base portion 50 and rotor 30 from extracting from main shaft 20.
And fixture of the present invention also has and makes pushing nut 74b be connected jockey 76 on the main shaft 20.Jockey 76 is by being formed on the screw 76a on the pushing nut 74b and penetrating this screw, and the attachment screw 76b that is crimped on the periphery 22 of main shaft 20 constitutes.
And with reference to Fig. 5 d, coupling apparatus of the present invention also has the pulling attachment 80 that is used for from the wedge-like ring 72 of choosing between rotor base portion 50 and the main shaft 20.
This pulling attachment 80 is by a plurality of screws 82 on the flange part 72b that is formed at wedge-like ring 72 and penetrate screw 82, and the slip-off preventing screw of being supported by rotor base portion 50 84 constitutes.Particularly slip-off preventing screw 84 is under the state that screws togather with screw 82, and its end is supported by rotor base portion 50.Thus, play when the operator makes it to rotate, the effect that the wedge-like ring 72 that screws togather is risen to top, therefore, can be from the wedge-like ring 72 of choosing between rotor base portion 50 and the main shaft 20.
Then, with reference to Fig. 5 a to Fig. 5 d the using method of the present invention with such formation is described.At first, research and utilization device of the present invention makes the method for rotor 30 and main shaft 20 combinations.
At first, shown in Fig. 5 a, be entrenched in rotor base portion 50 heating under interior all 32 the state of rotor 30, rotor base portion 50 and rotor 30 embedded the periphery 22 of main shafts 20.At this moment, the lower end of rotor base portion 50 is supported by the stage portion 24 of main shaft 20 certainly.Embed main shaft 20 periphery 22 key 60 be formed at rotor base portion 50 interior all 52 on keyway 62 chimeric naturally.
Under such state, rotor base portion 50, rotor 30 and main shaft 20 one combinations, thus, rotor 30 and main shaft 20 can unitary rotation.
And, after finishing being connected of rotor base portion 50 and main shaft 20, shown in Fig. 5 b, wedge-like ring 72 and pushing nut 74b is outer in turn is embedded on the periphery 22 of main shaft 20., the wedge portion 72a of wedge-like ring 72 embedded the slope closed surface 70 and main shaft 20 of rotor base portion 50 between, the pushing nut 74b and the threaded portion 74a of main shaft 20 are screwed togather, then, make pushing nut 74b for the helical movement, push wedge-like ring 72 thereafter.
In this state, wedge-like ring 72 embeds between rotor base portions 50 and the main shaft 20 and crimping makes the upper end one of rotor base portion 50 and main shaft 20 fix simultaneously.Thereby stop rotor 30 to be extracted from main shaft 20.
And, after the fixedly end of rotor base portion 50 and main shaft 20, shown in Fig. 5 c, attachment screw 76b is inserted among the screw 76a of pushing nut 74b, make it to rotate.Like this, attachment screw 76b is connected the outside of main shaft 20, has prevented the disengaging of pushing nut 74b.
Under such state, finish the combination of rotor 30 and main shaft 20.Thereby rotor 30 and main shaft 20 are combined as a whole.
Then, study the method that rotor 30 is separated with main shaft 20.This takes off attachment screw 76b shown in Fig. 5 d, pushing nut 74b can be rotated, and takes off pushing nut 74b then, makes it to leave wedge-like ring 72.
After making pushing nut 74b leave wedge-like ring 72, slip-off preventing screw 84 is inserted in the screw 82 of wedge-like ring 72, make it to rotate.Like this, the wedge-like ring 72 that screws togather with it is risen to top, extracts between rotor base portion 50 and main shaft 20.As a result, becoming rotor 30 and rotor base portion 50 can be from the state of main shaft 20 disengagings.
And, should at wedge-like ring 72 after extract fully between rotor base portion 50 and the main shaft 20, separate pushing nut 74b and wedge-like ring 72 in turn, finally from the periphery 22 complete separation rotor base portion 50 and the rotors 30 of main shaft 20 from main shaft 20.
In the above description, illustration preferred embodiment of the present invention, but scope of the present invention is not limited only to specific execution mode, certainly suitably changes in the scope of technical solution of the present invention.
As mentioned above, the rotor of main shaft and the coupling apparatus of main shaft make that by easy formation main shaft and rotor can separating and combining, can carry out the maintenance and the replacing of main shaft and rotor easily.In addition and since main shaft and rotor in conjunction with separating process in, do not need to heat rotor or cooling main shaft, can prevent main shaft and rotor generation thermal deformation.
Claims (7)
1. the coupling apparatus of the rotor of a spindle built-in motor and main shaft is used to make main shaft and rotor combination, it is characterized in that: comprise
Be fixedly installed on the interior week of described rotor, the outer separably cylindric rotor base portion that is embedded in the periphery of described main shaft;
Connect described rotor base portion and described main shaft and make the jockey that both can unitary rotation;
The end of described rotor base portion is fixed on the described main shaft, so that the fixture that described rotor base portion can not be extracted from described main shaft,
Described fixture comprises the interior all ends that are arranged on described rotor base portion, and from then on end side is to slope closed surface that the radially inner side diameter diminishes in turn; Between described slope closed surface and described main shaft and the wedge-like ring of installing; And described wedge-like ring is pressed in pressing device between described slope closed surface and the described main shaft.
2. the rotor of spindle built-in motor as claimed in claim 1 and the coupling apparatus of main shaft, it is characterized in that: described jockey is by the key of the periphery that embeds described main shaft, with interior week formation, so that the keyway that described key can be chimeric constitutes at described rotor base portion.
3. the rotor of spindle built-in motor as claimed in claim 1 and the coupling apparatus of main shaft is characterized in that:
Described pressing device, comprise on the periphery that is formed on described main shaft the threaded portion and therewith the threaded portion screw togather, moving along described threaded portion spiral shell, described wedge-like ring is pressed into pushing nut between described slope closed surface and the described main shaft.
4. the rotor of spindle built-in motor as claimed in claim 3 and the coupling apparatus of main shaft is characterized in that: be connected jockey on the described main shaft for preventing from the disengaging of described pushing nut, also comprise to make described pushing nut,
Described jockey comprises being formed on the screw on the described pushing nut and penetrating described screw, is crimped on the attachment screw on the described main shaft.
5. the rotor of spindle built-in motor as claimed in claim 3 and the coupling apparatus of main shaft is characterized in that: also comprise from the pulling attachment of the described wedge-like ring of choosing between the slope closed surface of described rotor base portion and the described main shaft,
Described pulling attachment comprises the slip-off preventing screw, and this slip-off preventing screw is under the state that screws togather with described wedge-like ring, and its end is supported by the rotor base portion, rotates by external force, and described wedge-like ring is left between described slope closed surface and described main shaft.
6. the rotor of spindle built-in motor as claimed in claim 4 and the coupling apparatus of main shaft is characterized in that: form the stage portion that axle supports described rotor base portion on the periphery of described main shaft, being situated between between described stage portion and described rotor base portion has packing ring.
7. the rotor of spindle built-in motor as claimed in claim 1 and the coupling apparatus of main shaft is characterized in that: described rotor base portion is entrenched on the interior week of described rotor by heating chimeric mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030096296 | 2003-12-24 | ||
| KR10-2003-0096296A KR100520942B1 (en) | 2003-12-24 | 2003-12-24 | Mounting structure of main spindle and built-in motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1638235A CN1638235A (en) | 2005-07-13 |
| CN100521451C true CN100521451C (en) | 2009-07-29 |
Family
ID=34858621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100615394A Active CN100521451C (en) | 2003-12-24 | 2004-12-24 | Combining apparatus for spindle built-in motor rotor and spindle |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100520942B1 (en) |
| CN (1) | CN100521451C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237757A (en) * | 2010-04-30 | 2011-11-09 | 财团法人精密机械研究发展中心 | Energy-consuming-free type radiation device of heat concentration units of machine tool |
| CN102394530A (en) * | 2010-11-13 | 2012-03-28 | 西安合升动力科技有限公司 | Connecting structure of motor spindle and motor rotor |
| KR102382695B1 (en) | 2020-09-11 | 2022-04-05 | 두산공작기계(주) | Built-in motor type main spindle of machine tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377762A (en) * | 1980-01-07 | 1983-03-22 | Hitachi, Ltd. | Rotary electric machine rotor and a method of manufacturing the same |
| US4792713A (en) * | 1987-10-16 | 1988-12-20 | Onan Corporation | Lamination to rotor shaft retention method utilizing spring pins |
| US5760520A (en) * | 1995-12-27 | 1998-06-02 | Aisin Aw Co., Ltd. | Motor |
-
2003
- 2003-12-24 KR KR10-2003-0096296A patent/KR100520942B1/en active IP Right Grant
-
2004
- 2004-12-24 CN CNB2004100615394A patent/CN100521451C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377762A (en) * | 1980-01-07 | 1983-03-22 | Hitachi, Ltd. | Rotary electric machine rotor and a method of manufacturing the same |
| US4792713A (en) * | 1987-10-16 | 1988-12-20 | Onan Corporation | Lamination to rotor shaft retention method utilizing spring pins |
| US5760520A (en) * | 1995-12-27 | 1998-06-02 | Aisin Aw Co., Ltd. | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100520942B1 (en) | 2005-10-13 |
| KR20050064713A (en) | 2005-06-29 |
| CN1638235A (en) | 2005-07-13 |
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Effective date of registration: 20051216 Address after: Inchon, South Korea Applicant after: DOOSAN INFRACORE Co.,Ltd. Address before: Inchon, South Korea Applicant before: DAEWOO HEAVY INDUSTRIES & MACHINERY LTD. |
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Effective date of registration: 20160712 Address after: Gyeongnam, South Korea Patentee after: DOOSAN MACHINE TOOLS CO.,LTD. Address before: Inchon, South Korea Patentee before: DOOSAN INFRACORE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Gyeongnam, South Korea Patentee after: Dean Machine Tool Co.,Ltd. Address before: Gyeongnam, South Korea Patentee before: DOOSAN MACHINE TOOLS CO.,LTD. |