DK165572B - ELECTRIC MOTOR WITH A COMPOSITE ROTOR HOUSE - Google Patents
ELECTRIC MOTOR WITH A COMPOSITE ROTOR HOUSE Download PDFInfo
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- DK165572B DK165572B DK108381A DK108381A DK165572B DK 165572 B DK165572 B DK 165572B DK 108381 A DK108381 A DK 108381A DK 108381 A DK108381 A DK 108381A DK 165572 B DK165572 B DK 165572B
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- bearing
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- electric motor
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- 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
- H02K5/15—Mounting arrangements for bearing-shields or end plates
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Soil Working Implements (AREA)
- Food-Manufacturing Devices (AREA)
- Electrophonic Musical Instruments (AREA)
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Abstract
Description
DK 165572BDK 165572B
Opfindelsen angår en elektromotor med sammensat rotorhus.The invention relates to an electric motor with composite rotor housing.
Opfindelsen retter sig mod en elektromotor med et rotorhus dannet af en cylindrisk kappe, som i enderne er luk-5 ket af endedæksler, i hvilke der koncentrisk er monteret en stator og en rotor.The invention is directed to an electric motor with a rotor housing formed by a cylindrical sheath closed at the ends by end caps in which a stator and a rotor are concentrically mounted.
De mekaniske egenskaber og i en vis udstrækning de elektriske egenskaber for en sådan elektromotor er ofte en 10 funktion af rotorens centrering i forhold til stator, dvs. opretning og parallellitet for rotorakslens lejer, som bæres af rotorhuset endedæksler.The mechanical properties and to some extent the electrical properties of such an electric motor are often a function of the centering of the rotor relative to the stator, ie. alignment and parallelism of the rotor shaft bearings supported by the rotor housing end covers.
I den kendte teknik skal enderne af rotorhusets ringkappe 15 og monteringsfladen for lejeskjoldene eller endedækslerne afrettes omhyggeligt for at opnå en god centrering af rotoren, og under påsætning af rotorlejerne må der ofte anvendes monteringskiler. Denne fabrikationsform for elektromotorer er langsom og kostbar.In the prior art, the ends of the rotor housing ring sheath 15 and the mounting surface of the bearing shields or end covers must be carefully aligned to achieve good centering of the rotor, and during installation of the rotor bearings, mounting wedges must often be used. This form of manufacture of electric motors is slow and expensive.
20 I US patentskrift nr. 3 732 616 er der beskrevet en løsning på problemet med at anbringe et plant lejeskjold vinkelret på en sådan måde, at normalen til dette plan er parallel med rotorakslen. Hertil er ringkappen ved siden 25 af lejeskjoldet gennemhullet af nogle indsnit, hvis flade bund tjener som anlægsflade for de radiale støtteben, som forlænger lejeskjoldet. Denne løsning indgår i opfindelsen (se indledningen til krav 1).20 U.S. Patent No. 3,732,616 describes a solution to the problem of placing a flat bearing shield perpendicular to such that the normal to this plane is parallel to the rotor shaft. To this end, the annular sheath adjacent to 25 of the bearing shield is pierced by some incisions whose flat bottom serves as the abutment surface for the radial support legs which extend the bearing shield. This solution is included in the invention (see the introduction to claim 1).
30 I US patentskrift nr. 3 463 949 er der beskrevet en løsning på problemet med centrering af lejeskjoldet på ringkappen. Periferien af lejeskjoldets blik bearbejdes hertil på en sådan måde, at på dette bliks tykkelse udføres med høj præcision en cylindrisk overflade, hvis diameter 35 i hovedsagen er lig med ringkappens indre diameter. Opfindelsen giver en betydelig forbedring til denne løsning, fordi mekanisk bearbejdning er en kostbar og lang- 230 US Patent No. 3,463,949 discloses a solution to the problem of centering the bearing shield on the ring sheath. The periphery of the bearing shield's gaze is machined thereto in such a way that, on the thickness of this tin, a cylindrical surface whose diameter 35 is substantially equal to the inner diameter of the ring sheath is performed. The invention provides a significant improvement to this solution because mechanical machining is a costly and long-term solution.
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som operation, som er mindre gunstig til store produktionsserier, som opfindelsen er tilpasset. Da bliktykkelserne endvidere er små i forhold til ringkappens diametre, er centreringsvirkningen mindre effektiv.as an operation which is less favorable for large production series to which the invention is adapted. Furthermore, since the thicknesses of the tin are small in relation to the diameters of the ring sheath, the centering effect is less effective.
5 I FR patentskrift nr. 2 439 496 er problemet med centrering løst ved udvækster på lejeskjoldet, som kommer til anlæg mod ringkappens indre overflade. Disse udvækster udgør en kompliceret form for lejeskjold.5 In FR patent no. 2 439 496, the problem of centering is solved by protrusions on the bearing shield, which come into contact with the inner surface of the ring sheath. These outgrowths are a complicated form of rental shield.
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Opfindelsen har til formål at afhjælpe disse ulemper og at tilvejebringe en økonomisk fremstilling af en elektromotor, hvis rotor er velcentreret i forhold til statoren.The invention has for its object to overcome these disadvantages and to provide an economical production of an electric motor whose rotor is well centered with respect to the stator.
15 For at sikre, at lejeskjoldet er vinkelret på ringkappen, er denne forsynet med indhak, hvis bund tjener som anlægsflade for radiale tænder i lejeskjoldet. Elektromotoren ifølge opfindelsen omfatter en stator, en rotor og et sammensat rotorhus med ringkappe indrettet til at holde 20 statoren og to lejeskjolde på plads til at bære rotorakslens lejer, hvor ringkappen er forsynet med indhak, hvis bunde tjener som anlæg for radiale tænder på lejeskjoldene, og organer som tillader at fiksere lejeskjoldene til ringkappen, idet hvert lejeskjold på hver side af de ra-25 diale tænder har dele af en cylindrisk overflade med ydre diameter hovedsagelig lig med udboringens diameter i ringkappen og tillader centrering af lejeskjoldene i forhold til ringkappen. Ifølge opfindelsen er en sådan elektromotor særegen ved, at den cylindriske overflade udgø-30 res af ombukkede eller fremhævede kanter af lejeskjoldenes blik.15 To ensure that the bearing shield is perpendicular to the ring sheath, it is provided with a notch whose bottom serves as the abutment surface for radial teeth in the bearing shield. The electric motor according to the invention comprises a stator, a rotor and a composite rotor housing with ring cap arranged to hold the stator and two bearing shields in place to support the bearings of the rotor shaft, the ring cap being provided with notches, the bottom of which serves as a radial teeth installation on the bearing shields. and means allowing fixing of the bearing shields to the annular sheath, each bearing shield on each side of the radial teeth having portions of a cylindrical surface of outer diameter substantially equal to the diameter of the bore in the annular sheath and allowing centering of the bearing shields relative to the annular sheath. According to the invention, such an electric motor is peculiar in that the cylindrical surface is constituted by bent or raised edges of the bearing shield gaze.
Fastgørelsen af lejeskjoldet til ringkappen kan sikres enten ved svejsning af lejeskjoldets ombukkede kant til 35 ringkappen, eller ved en indfatningsoperation bestående i, at lejeskjoldets tænder så ombukkes mod ringkappens ydre overflade som fremspring mod denne overflade, eller 3The attachment of the bearing shield to the ring cap can be secured either by welding the folded edge of the bearing shield to the ring cap, or by a mounting operation consisting of the teeth of the bearing shield being then folded against the outer surface of the ring cap as a projection to this surface, or 3
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endog ved at tænder anbringes i ringkappen på begge sider af indhakkene som ombukkes mod lejeskjoldets tænder.even by placing teeth in the ring cap on both sides of the notches which are bent against the teeth of the bearing shield.
Opfindelsen forklares nærmere i forbindelse med tegnin-5 gen, hvor: fig. 1 er en skematisk afbildning fra siden af en elektromotor ifølge opfindelsen, 10 fig. 2 er en skematisk afbildning fra enden af rotorhuset på fig. 1, visende et lejeskjold under montering, fig. 3 er en skematisk afbildning af rotorhusets ringkappe, anbragt på en monteringsdorn, 15 fig. 4-a, 4-b og 5 er perspektiviske afbildninger af ændrede udførelsesformer for elektromotoren på fig. 1, fig. 6 viser en anden ændret udførelsesform for elektro-20 motoren på fig. 1, og fig. 7 er en afbildning af en del af længdekanten af et præ-formet element af rotorhuskappen af motoren på fig.The invention is further explained in connection with the drawing, in which: FIG. 1 is a schematic side view of an electric motor according to the invention; FIG. 2 is a schematic view from the end of the rotor housing of FIG. 1, showing a bearing shield during mounting; FIG. 3 is a schematic view of the rotor housing ring sheath mounted on a mounting mandrel; FIG. 4-a, 4-b and 5 are perspective views of altered embodiments of the electric motor of FIG. 1, FIG. 6 shows another modified embodiment of the electric motor of FIG. 1, and FIG. 7 is a view of a portion of the longitudinal edge of a preformed member of the rotor casing of the motor of FIG.
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Fig. 1 viser en elektromotor ifølge opfindelsen, omfattende et sammensat rotorhus 2, bestående af en cylinderformet ringkappe 3, bestående af flere sammenbyggede præformede elementer, og to lejeskjolde 4 og 5, der lukker 30 for enderne af ringkappen, en stator eller magnetsystem og en rotor eller anker, hvilke sidstnævnte dele er monteret koncentrisk i rotorhuset 2, og hvor rotorlejer 6 er understøttet af lejeskjoldene 4 og 5. Ringkappen 3 frembyder ved sine ender ventilationsåbninger 7. Disse åbnin-35 ger er dog ikke obligatoriske.FIG. 1 shows an electric motor according to the invention, comprising a composite rotor housing 2, consisting of a cylindrical ring sheath 3, consisting of several assembled preformed elements, and two bearing shields 4 and 5 closing 30 at the ends of the ring sheath, a stator or magnetic system and a rotor or anchors, the latter parts of which are mounted concentrically in the rotor housing 2 and in which the rotor bearings 6 are supported by the bearing shields 4 and 5. The ring sheath 3 presents at its ends ventilation openings 7. However, these openings are not mandatory.
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Lejeskjoldene 4 og 5 har ved deres periferi plane referenceflader, som definerer et plan vinkelret på den fælles akse for deres centrale rotoraksellejer og deres gennemgangshul for rotorakslen, og hvor ringkappen 3 ved en-5 derne af de præ-formede elementer har plane støtteflader, der optager de respektive referenceflader af lejeskjoldene 4 og 5.The bearing shields 4 and 5 have, at their periphery, flat reference faces defining a plane perpendicular to the common axis of their central rotor shaft bearings and their through-holes for the rotor shaft, and the annular sheath 3 at one of the preformed elements having planar support faces which occupies the respective reference surfaces of the bearing shields 4 and 5.
De plane støtteflader er forud for monteringen af ring-10 kappen anbragt langs to parallelle planer vinkelret på ringkappens længdeakse.The planar support faces are arranged along two parallel planes perpendicular to the longitudinal axis of the ring sheath prior to mounting the ring 10.
I den på fig. 1, 2 og 3 viste udførelsesform for opfindelsen omfatter det sammensatte rotorhus 2 af elektromo-15 toren 1 en ringkappe 3, bestående af en opbygning i længderetningen af tre præ-formede blikpladeelementer 8, 9 og 10, der af grænses af frembringere, eksempelvis 8 og 8. , af den ringkappen dannede cylinder. Hvert af elementerne omfatter ved sine to ender rektangulære indhak 11 og 12, 20 hvis plane bunde tjener som anlægsflade for radiale flige eller tænder på lejeskjoldet. I den monterede ringkappe 3 befinder de plane anlægsflader sig i to parallelle planer vinkelret på længdeaksen 19.In the embodiment of FIG. 1, 2 and 3 of the invention, the composite rotor housing 2 of the electromotor 1 comprises a ring sheath 3, consisting of a longitudinal structure of three preformed sheet metal elements 8, 9 and 10 bounded by generators, e.g. and 8., the cylinder formed by the ring cap. Each of the elements comprises at its two ends rectangular notches 11 and 12, 20 whose flat bottoms serve as abutment for radial tabs or teeth of the bearing shield. In the mounted ring sheath 3, the flat abutment faces are in two parallel planes perpendicular to the longitudinal axis 19.
25 Lejeskjoldene 4 og 5, som udgør enderne af ringkappen 3, har en i det væsentlige trekantet form med afrundede hjørner og er ved deres centrum forsynet med et lejekammer 15 til et rotorleje af motoren, samt et hul 16 til gennemgangen af rotorakslen 6, og ved periferien af leje-30 skjoldene er der radiale flige eller tænder 13 og 14, der tjener som plane referenceflader, samt organer til fastgørelse ved klemning, og som er omgivet af ophøjede kanter 17, der muliggør en sammenstabling og centrering af lejeskjoldene i ringkappen 3, hvilke kanter 17 har en 35 yderdiameter lig med inderdiameteren af boringen i ringkappen. I det viste eksempel vender de ophøjede kanter 17 imod det indre af rotorhuset 2.The bearing shields 4 and 5, which form the ends of the ring sheath 3, have a substantially triangular shape with rounded corners and are provided at their center with a bearing chamber 15 for a rotor bearing of the motor, as well as a hole 16 for the passage of the rotor shaft 6, and at the periphery of the bearing shields, there are radial tabs or teeth 13 and 14 which serve as planar reference surfaces, as well as means for attachment by squeezing, and which are surrounded by raised edges 17 which allow stacking and centering of the bearing shields in the ring sheath 3 , which edges 17 have an outer diameter equal to the inner diameter of the bore in the annular sheath. In the example shown, the raised edges 17 face the interior of the rotor housing 2.
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I lejeskjoldene 4 og 5 afgrænser de plane referenceflader i form af en flade af de radiale flige 13 og 14 planer vinkelret på den fælles akse 18 for det centrale lejekammer 15 og gennemgangshullet 16 for rotorakslen 6, og de 5 ophøjede periferiske kanter 17 afgrænser dele af en cylinderflade koncentrisk med aksen 18, og hvis diameter er lig med diameteren af udboringen i ringkappen 3.In the bearing shields 4 and 5, the planar reference surfaces in the form of a surface of the radial tabs 13 and 14 define planes perpendicular to the common axis 18 of the central bearing chamber 15 and the through hole 16 of the rotor shaft 6, and the 5 raised peripheral edges 17 define portions of a cylinder surface concentric to the axis 18 and the diameter of which is equal to the diameter of the bore in the ring sheath 3.
Ved påfæstning af lejeskjoldene 4 og 5 på ringkappen 3 10 anlægges fligene 13 og 14 imod de respektive anlægsflader i form af de plane bunde af de rektangulære indhak 11 og 12 i ringkappens elementer 8, 9 og 10. De af fligene 13 og 14 afgrænsede planer går da ud i ét med de af de plane bunde af indhakkene 11 og 12 afgrænsede planer og bliver 15 parallelle indbyrdes og vinkelret på længdeaksen 19 af ringkappen 3. Koncentriciteten af lejekammeret 15 og af de periferiske kanter 17 af lejeskjoldene 4 og 5 bidrager til at bringe aksen 18 af lejekamrene 15 til at falde sammen med længdeaksen 19 og ringkappen 3.By attaching the bearing shields 4 and 5 to the ring cap 3 10, the tabs 13 and 14 are applied to the respective abutment surfaces in the form of the planar bottoms of the rectangular notches 11 and 12 in the elements of the ring cap 8, 9 and 10. The planes defined by the tabs 13 and 14 then integrates with the planes bounded by the notches 11 and 12 and becomes 15 parallel to each other and perpendicular to the longitudinal axis 19 of the ring sheath 3. The concentricity of the bearing chamber 15 and of the peripheral edges 17 of the bearing shields 4 and 5 contribute to causing the axis 18 of the bearing chambers 15 to coincide with the longitudinal axis 19 and the ring sheath 3.
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Herved opnås der uden nogen bearbejdning af enderne af motorhusets ringkappe en god sammenflugtning af rotorlejerne og derved en god centrering af motorens rotor i forhold til statoren, med statoren fastholdt af rotorhu-25 set 3 og rotoren understøttet af lejeskjoldene 4 og 5.Hereby, without any machining of the ends of the motor casing ring, a good confluence of the rotor bearings is obtained and thereby a good centering of the rotor of the motor relative to the stator, with the stator held by the rotor housing 3 and the rotor supported by the bearing shields 4 and 5.
Til montering af de præ-formede elementer 8, 9 og 10 af ringkappen 3 anvendes der en monteringsdorn 20, bestående af to halvparter (fig. 3). Den første halvpart af dornen 30 20 omfatter en sokkel 21, over hvilken der er anbragt et cylinderformet legeme 22, hvis yderdiameter er praktisk taget lig med yderdiameteren af motorens stator og yderdiameteren af de periferiske kanter 17 af lejeskjoldene 4 og 5. Herved kan den ved hjælp af dornen sammenbyggede 35 ringkappe 3 med prespasning optage statoren og med glide-pasning optage lejeskjoldene 4 og 5.For mounting the preformed elements 8, 9 and 10 of the ring sheath 3, a mounting mandrel 20 consisting of two half-parts (Fig. 3) is used. The first half of the mandrel 30 20 comprises a base 21 over which is mounted a cylindrical body 22, the outer diameter of which is practically equal to the outer diameter of the stator of the motor and the outer diameter of the peripheral edges 17 of the bearing shields 4 and 5. by means of the mandrel 35 ring sheath 3 assembled with press fit take up the stator and with slide fit take up the bearing shields 4 and 5.
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Soklen 21 har desuden på sin overflade omkring legemet 22 rektangulære radiale knaster 23 med en sådan bredde, at de frit kan optages i de rektangulære indhak 11 eller 12, og med en højde, der er større end dybden af disse ind-5 hak. De plane overflader af enderne af knasterne 23 afgrænser et plan vinkelret på aksen af det cylinderformede legeme 22, hvilken akse falder sammen med længdeaksen 19 af den på dornen 20 sammenbyggede ringkappe 3.In addition, the base 21 has on its surface around the body 22 rectangular radial bosses 23 of such width that they can be freely accommodated in the rectangular notches 11 or 12, and at a height greater than the depth of these notches. The planar surfaces of the ends of the lugs 23 define a plane perpendicular to the axis of the cylindrical body 22, which axis coincides with the longitudinal axis 19 of the ring sheath 3 mounted on the mandrel 20.
10 Den anden halvdel af dornen 20 omfatter en ansats 24 med en forlængelse i form af et cylinderformet legeme 25, som kan glideforskydes koncentrisk og med glidepasning i boringen i legemet 22 af den første dorn-halvpart 21. Ansatsen 24 har på sin overflade omkring legemet 25 rekt-15 angulære radiale knaster 26 med de samme dimensioner som knasterne 23. De plane endeflader af knasterne 26 afgrænser et plan vinkelret på aksen af det cylinderformede legeme 25 og dermed vinkelret på aksen af legemet 22. De to halvparter 21 og 24 af dornen 20 holdes fastklemt imod 20 hinanden (fig. 3) ved hjælp af en ikke vist konventionel fastklemningsanordning, der kan bestå af en (ikke vist) aksial skruespindel monteret igennem et aksialt hul i ansatsen 24 og boringen i legemet 22 og være fastgjort til soklen 21, og af en (ikke vist) møtrik, som ved ind-25 skruning på skruespindelen tilvejebringer en fastklemning af ansatsen 24 imod legemet 22 af sokkelen 21.The second half of the mandrel 20 comprises an abutment 24 with an extension in the form of a cylindrical body 25 which can be slid concentrically and with a sliding fit in the bore in the body 22 of the first mandrel half 21. The abutment 24 has on its surface about the body 25 rectangular angular radial bosses 26 having the same dimensions as the bosses 23. The flat end faces of the bosses 26 define a plane perpendicular to the axis of the cylindrical body 25 and thus perpendicular to the axis of the body 22. The two half-parts 21 and 24 of the mandrel 20 is held clamped against 20 one another (Fig. 3) by means of a conventional clamping device (not shown), which may consist of an (not shown) axial screw spindle mounted through an axial hole in the shoulder 24 and the bore in the body 22 and attached to the base 21 and of a nut (not shown) which, when screwed into the screw spindle, provides a clamping of the shoulder 24 against the body 22 of the base 21.
Ved montering af ringkappen 3 monteres de præ-formede elementer 8, 9 og 10 på dornen 20 i anlæg mod det cylin-30 derformede legeme 22 med deres indhak 11 og 12 indgribende med de respektive knaster 23 og 26. En tilnærmelse af ansatsen 24 imod soklen 21 ved hjælp af fastklemningsanordningen gør det muligt for knasterne 23 og 26 at foretage en korrekt positionering af elementerne 8, 9 og 10 35 ved at tvinge bundene af deres indhak 11 og 12 til at anbringe sig i to indbyrdes parallelle planer vinkelret på aksen af de cylinderformede legemer 22 og 25 af dornen 7When mounting the ring sheath 3, the preformed elements 8, 9 and 10 are mounted on the mandrel 20 abutting against the cylindrical body 22 with their notches 11 and 12 engaging the respective lugs 23 and 26. An approximation of the shoulder 24 against the socket 21 by means of the clamping device enables the lugs 23 and 26 to correctly position the elements 8, 9 and 10 35 by forcing the bottoms of their notches 11 and 12 to fit in two mutually parallel planes perpendicular to the axis of the the cylindrical bodies 22 and 25 of the mandrel 7
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20 og dermed vinkelret på længdeaksen 19 af ringkappen 3.20 and thus perpendicular to the longitudinal axis 19 of the ring sheath 3.
De overlappende langsgående kanter af elementerne 8, 9 og 10 på dornen 20 kan forbindes solidt indbyrdes, eksempelvis ved punktsvejsninger 27.The overlapping longitudinal edges of the elements 8, 9 and 10 of the mandrel 20 can be firmly interconnected, for example by spot welding 27.
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Den således udformede ringkappe 3 er klar til at optage elektromotorens stator og rotor samt lejeskjoldene 4 og 5. Under fastgørelsen af lejeskjoldene 4 og 5 anlægges disses radiale flige 13 først i tæt berøring imod bundene 10 af ringkappeindhakkene 11 og 12, hvorefter dels lejeskjoldsbundene 17 svejses på ringkappen 3 og dels lejeskjoldsfligene 13 fastklemmes på plads, dvs. ombukket imod yderfladen af ringkappen.The ring sheath 3 thus formed is ready to receive the stator and rotor of the electric motor and the bearing shields 4 and 5. During the attachment of the bearing shields 4 and 5, their radial tabs 13 are first brought into close contact with the bottom 10 of the ring sheath notches 11 and 12 and then partly the bearing shield bottoms 17 are welded. on the ring sheath 3 and partly the bearing shield tabs 13 are clamped in place, i.e. folded against the outer surface of the ring sheath.
15 Den trekantede form af lejeskjoldene 4 og 5 tilvejebringer ved enderne af motorens sammensatte rotorhus 2 store ventilationsåbninger 28 uden at nedsætte stivheden af motoren. Takket være disse store ventilationsåbninger 28 kan vetilationsåbningerne 7 i ringkappen 3 eventuelt und-20 væres.The triangular shape of the bearing shields 4 and 5 at the ends of the composite rotor housing 2 provides large ventilation openings 28 without reducing the stiffness of the motor. Thanks to these large ventilation openings 28, the vetilation openings 7 in the ring jacket 3 can possibly be avoided.
I den på fig. 4-a, 4-b og fig. 5 viste udførelsesform er de radiale flige 30 på hvert af lejeskjoldene 31 ikke bestemt til at ombukkes imod yderfladen af ringkappen 32.In the embodiment of FIG. 4-a, 4-b and fig. 5, the radial tabs 30 on each of the bearing shields 31 are not intended to be folded against the outer surface of the ring sheath 32.
25 Yderdiameteren af den cirkel, der omfatter fligeenderne 33, behøver derfor ikke at være større end yderdiameteren af ringkappen 32. Derfor er diameteren af denne cirkel fortrinsvis lig med diameteren af yderfladen af ringkappen 32.Therefore, the outer diameter of the circle comprising the tab ends 33 need not be greater than the outer diameter of the ring sheath 32. Therefore, the diameter of this circle is preferably equal to the diameter of the outer surface of the ring sheath 32.
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Som i den på fig. 1-3 viste udførelsesform anlægges hver flig 30 imod bunden 34 af et indhak svarende til enden af ringkappen 32, og alle bundene 34 i den samme kappeende ligger da i ét og samme plan vinkelret på aksen af ring-35 kappen. Ved dette samvirke imellem fligene 30 og indhaksbundene 34 kan man anbringe lejeskjoldene 31 vinkelret på aksen af ringkappen 32.As shown in FIG. 1-3, each tab 30 is placed against the bottom 34 of a notch corresponding to the end of the ring sheath 32, and all the bottoms 34 of the same sheath end lie in one and the same plane perpendicular to the axis of the ring 35 sheath. By this interaction between the tabs 30 and the notch bottoms 34 one can place the bearing shields 31 perpendicular to the axis of the ring sheath 32.
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Fligene 30 holdes adskilt fra kanter 35, hvis yderflade befinder sig på en cylinder med samme diameter som boringen i ringkappen 32, ved indhak 36 (fig. 4-b), som ikke har sådanne kanter 35. I det viste eksempel vender kan-5 terne 35 i retning udad fra rotorhuset.The tabs 30 are kept separate from edges 35, the outer surface of which is on a cylinder of the same diameter as the bore of the ring sheath 32, at notches 36 (Figs. 4-b) which have no such edges 35. In the example shown, can-5 the tines 35 in the outward direction from the rotor housing.
Ringkappen har indhak 38 og 39 på hver sin side af kantflader henholdsvis 40 og 41 for indhakkene med bunden 34, som er parallel med aksen af ringkappen. Hvert af 10 disse indhak, eksempelvis indhakket 38, er afgrænset af en skrå kant flade 42, der udgår fra den frie ende af kantfladen 40, og at en kantflade 42a parallel med aksen af ringkappen. På denne måde dannes der på hver side af indhaksbunden 34 en tand henholdsvis 43 og 44, bestemt 15 til ombukning imod overfladen af den tilsvarende udadvendte flig 30.The ring cap has notches 38 and 39 on either side of edge faces 40 and 41, respectively, for the notches with the base 34 which are parallel to the axis of the ring cap. Each of these 10 notches, for example, notch 38, is defined by an inclined edge face 42 extending from the free end of edge face 40 and an edge face 42a parallel to the axis of the annular cap. In this way, on each side of the notch bottom 34, a tooth 43 and 44, respectively, 15 are formed to bend against the surface of the corresponding outwardly extending tab 30.
De rette sider af lejeskjoldet 31 er i dette udførelseseksempel forsynet med kanter 45 i forlængelse af kanterne 20 35, hvorved der tilvejebringes en afstivning af leje skjoldet.In this embodiment, the straight sides of the bearing shield 31 are provided with edges 45 in extension of the edges 20 35, thereby providing a stiffening of the bearing shield.
I udførelseseksemplet på fig. 4-a er lejeskjoldet 31 plant, men lejeskjoldet 31 i udførelsesformen på fig. 5 25 har radialribber 46, der strækker sig langs den radiale symmetriakse af hver af fligene 30. Ribberne 46 er udformet på den side af lejeskjoldet, der vender udad.In the embodiment of FIG. 4-a, the bearing shield 31 is flat, but the bearing shield 31 in the embodiment of FIG. 5 25 has radial ribs 46 extending along the radial axis of symmetry of each of the tabs 30. The ribs 46 are formed on the side of the bearing shield facing outward.
I den på fig. 6 og 7 viste ændrede udførelsesform omfat-30 ter det sammensatte rotorhus 49 en ringkappe bestående af to blikpladeelementer 50 og 51, som er præ-formede i langsgående cylinder formede afsnit, hvis hosliggende længdekanter er forbundet ved sammehægtning. De hosliggende længdekanter kan eksempelvis have sammengribende 35 flige 52, der fastklemmes ved rulning omkring en spindel 53. I denne udførelsesform er lejeskjoldene 54 analoge med lejeskjoldene 4 og 5 i den første udførelsesform ogIn the embodiment of FIG. 6 and 7, the assembled rotor housing 49 comprises an annular cap consisting of two sheet plate members 50 and 51 which are preformed in longitudinal cylinder shaped portions, the adjacent longitudinal edges of which are joined by the same hook. For example, the adjacent longitudinal edges may have clamping tabs 52 which are clamped by rolling about a spindle 53. In this embodiment, the bearing shields 54 are analogous to the bearing shields 4 and 5 in the first embodiment and
DK 165572BDK 165572B
9 omfatter tre radiale flige 55, 56 og 57, der tjener som referenceflader, og som anlægges imod anlægsflader i form af de plane bunde af de tilsvarende rektangulære indhak 58, 59 og 60 i de præ-formede elementer 50 og 51. I det 5 viste eksempel omfatter elementet 50 ved begge sine ender et rektangulært indhak 58, medens elementet 51 ved begge sine ender har to rektangulære indhak 59 og 60.9 comprises three radial tabs 55, 56 and 57 which serve as reference surfaces and which are arranged against abutment surfaces in the form of the planar bottoms of the corresponding rectangular notches 58, 59 and 60 in the preformed elements 50 and 51. In the example shown, element 50 at both ends comprises a rectangular notch 58, while element 51 at both ends has two rectangular notches 59 and 60.
I det sammensatte rotorhus kan ringkappen bestå af en op-10 bygning af et antal præ-formede elementer på to eller flere og have et cylinderformet eller polygonalt tvær-snitsprofil, medens lejeskjoldene også kan være cirkulære eller polygonale. Ringkappen kan også bestå af et enkelt legeme.In the assembled rotor housing, the annular sheath may consist of a plurality of preformed elements of two or more and have a cylindrical or polygonal cross-sectional profile, while the bearing shields may also be circular or polygonal. The ring cap can also consist of a single body.
15 20 25 30 3515 20 25 30 35
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8005416 | 1980-03-11 | ||
| FR8005416A FR2478394A1 (en) | 1980-03-11 | 1980-03-11 | ELECTRIC MACHINE WITH COMPOSITE CARCASS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK108381A DK108381A (en) | 1981-09-12 |
| DK165572B true DK165572B (en) | 1992-12-14 |
| DK165572C DK165572C (en) | 1993-04-26 |
Family
ID=9239537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK108381A DK165572C (en) | 1980-03-11 | 1981-03-10 | ELECTRIC MOTOR WITH A COMPOSITE ROTOR HOUSE |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0035938B1 (en) |
| AT (1) | ATE10052T1 (en) |
| DE (1) | DE3166765D1 (en) |
| DK (1) | DK165572C (en) |
| ES (1) | ES500234A0 (en) |
| FR (1) | FR2478394A1 (en) |
| PL (1) | PL230093A1 (en) |
| YU (1) | YU39697B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516718A1 (en) * | 1981-11-13 | 1983-05-20 | Normandie Moteurs Electr | Electric motor end plate for rotor support for domestic appliance - includes circular disc with three mounting tabs formed from triangular lamina |
| DE3521342C1 (en) * | 1985-06-14 | 1987-01-15 | Licentia Gmbh | Electric motor with a motor housing and a gear housing attached to it |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE542272C (en) * | 1929-05-18 | 1932-01-22 | Siemens Schuckertwerke Akt Ges | Electrical machine with a cylindrical housing consisting of a sheet metal jacket |
| DE818533C (en) * | 1948-10-02 | 1951-10-25 | Siemens Schuckertwerke A G | Housing made of sheet steel for electric motors, especially for household appliances |
| DE824367C (en) * | 1948-10-02 | 1951-12-10 | Siemens Schuckertwerke A G | Housing made of sheet steel for electric motors, especially for household appliances |
| US2716709A (en) * | 1953-07-31 | 1955-08-30 | Rowe Walker Eliott | Casings for electric motors, generators, and the like |
| FR1098720A (en) * | 1954-01-27 | 1955-08-18 | Const Electr L M | Improvements to rotating electrical machines |
| FR1215119A (en) * | 1957-11-05 | 1960-04-14 | Gen Motors Corp | Advanced dynamo-electric machine |
| US3401282A (en) * | 1966-03-18 | 1968-09-10 | Gen Electric | Electric motor with permanent magnet stator poles and method of making |
| US3422295A (en) * | 1966-09-01 | 1969-01-14 | Gen Electric | Permanent magnet stator with split casing and method of making |
| FR1547268A (en) * | 1966-12-17 | 1968-11-22 | Bosch Gmbh Robert | Electric machine, especially small size machine |
| US3463949A (en) * | 1968-06-11 | 1969-08-26 | Controls Co Of America | End frame attachment for dynamoelectric machine |
| US3732616A (en) * | 1968-06-26 | 1973-05-15 | Universal Electric Co | Method of making end frame structures for electric motors |
| US3670405A (en) * | 1970-01-29 | 1972-06-20 | Gen Electric | Method of making a dynamoelectric machine having improved housing, bearing and support structure |
| DE2249684B2 (en) | 1972-10-11 | 1978-12-21 | Robert Bosch Gmbh, 7000 Stuttgart | Electric machine, especially small motor |
| US3794869A (en) * | 1972-11-15 | 1974-02-26 | Ford Motor Co | Dynamoelectric machine end plate and mounting means |
| BR7606888A (en) * | 1976-10-14 | 1977-06-14 | U Borriello | MACHINE HOUSING |
| DE2845663A1 (en) * | 1978-10-20 | 1980-05-08 | Bosch Gmbh Robert | Three=phase generator for motor vehicle - has one hexagonal disc-like bearing plane with ventilation |
| DE2845665A1 (en) * | 1978-10-20 | 1980-05-08 | Bosch Gmbh Robert | ELECTRIC MACHINE |
-
1980
- 1980-03-11 FR FR8005416A patent/FR2478394A1/en active Granted
-
1981
- 1981-03-04 EP EP81400334A patent/EP0035938B1/en not_active Expired
- 1981-03-04 DE DE8181400334T patent/DE3166765D1/en not_active Expired
- 1981-03-04 AT AT81400334T patent/ATE10052T1/en not_active IP Right Cessation
- 1981-03-10 DK DK108381A patent/DK165572C/en not_active IP Right Cessation
- 1981-03-10 ES ES500234A patent/ES500234A0/en active Granted
- 1981-03-11 YU YU622/81A patent/YU39697B/en unknown
- 1981-03-11 PL PL23009381A patent/PL230093A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2478394B1 (en) | 1983-02-18 |
| YU39697B (en) | 1985-03-20 |
| DK108381A (en) | 1981-09-12 |
| ATE10052T1 (en) | 1984-11-15 |
| EP0035938B1 (en) | 1984-10-24 |
| DE3166765D1 (en) | 1984-11-29 |
| EP0035938A1 (en) | 1981-09-16 |
| PL230093A1 (en) | 1981-11-13 |
| ES8202457A1 (en) | 1982-01-16 |
| YU62281A (en) | 1983-06-30 |
| FR2478394A1 (en) | 1981-09-18 |
| DK165572C (en) | 1993-04-26 |
| ES500234A0 (en) | 1982-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |