FR2567334A3 - Device for longitudinal holding of a rotary shaft - Google Patents
Device for longitudinal holding of a rotary shaft Download PDFInfo
- Publication number
- FR2567334A3 FR2567334A3 FR8410657A FR8410657A FR2567334A3 FR 2567334 A3 FR2567334 A3 FR 2567334A3 FR 8410657 A FR8410657 A FR 8410657A FR 8410657 A FR8410657 A FR 8410657A FR 2567334 A3 FR2567334 A3 FR 2567334A3
- Authority
- FR
- France
- Prior art keywords
- bearing
- rotor
- shaft
- elastic member
- hooks
- 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.)
- Granted
Links
Classifications
-
- 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
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
Abstract
Description
DISPOSITIF DE MAINTIEN LONGITUDINAL D'UN ARBRE ROTATIF.LONGITUDINAL HOLDING DEVICE FOR A ROTARY SHAFT.
ba présente invention concerne un dispositif de maintien longitudinal d'un arbre rotatif tel que d'un rotor de machine électrique tournante et plus particulièrement d'un induit de démarreur de véhicule automobile. ba present invention relates to a longitudinal holding device of a rotary shaft such as a rotor of a rotating electrical machine and more particularly of a motor vehicle starter armature.
Dans les démarreurs de véhicule automobile l'arbre d'induit de démarreur tourillonne dans un coussinet disposé dans un palier du démarreur. Or les induits de démarreur sont soumis à des vitesses de rotation de plus en plus élevées, de ce fait le coussinet est souvent remplacé par un roulement à billes monté à force en bout de l'arbre d'induit et monté glissant dans le palier du démarreur il est donc indispensable de limiter au maximum le glissement possible du roulement dans le palier et conséquemment le jeu longitudinal entre l'arbre d'induit et le palier. In motor vehicle starters, the starter armature shaft pivots in a bearing arranged in a bearing of the starter. Now the starter armatures are subjected to increasingly high rotational speeds, therefore the bearing is often replaced by a ball bearing force-fitted at the end of the armature shaft and slidably mounted in the bearing of the starter it is therefore essential to limit as much as possible the sliding of the bearing in the bearing and consequently the longitudinal clearance between the armature shaft and the bearing.
La présente invention a pour but de remédier à cet inconvénient et concerne à cet effet un dispositif de maintien longitudinal d'un arbre rotatif dans un palier et notamment de-maintien d'un rotor de machine électrique tournante qui tourillonne dans un palier et qui comporte un arbre qui porte le bobinage du rotor donc les fils conduc- teurs sont reliés à un collecteur contre lequel frottent des balais maintenus dans un porte balais solidaire du palier, caractérisé en ce que le rotor comporte un évidement dans lequel s'engage au moins une patte d'encrage d'un organe élastique solidaire du porte balais. The object of the present invention is to remedy this drawback and for this purpose relates to a device for the longitudinal maintenance of a rotary shaft in a bearing and in particular for the maintenance of a rotor of a rotating electric machine which spins in a bearing and which comprises a shaft which carries the winding of the rotor therefore the conductive wires are connected to a collector against which brushes rub maintained against a brush holder secured to the bearing, characterized in that the rotor has a recess in which engages at least one inking tab of an elastic member secured to the brush holder.
La description qui va suivre en regard des figures annexées fera mieux comprendre coninent 1 'invention peut être réalisée. The description which follows with reference to the appended figures will make it easier to understand the invention can be realized.
La figure 1 représente en coupe un dispositif de maintien lon- gitudinal d'un induit de démarreur conforme à l'invention. FIG. 1 shows in section a longitudinal holding device for a starter armature according to the invention.
La figure 2 représente les moyens de maintien d'un arbre rotatif avant assemblage. Figure 2 shows the means for holding a rotary shaft before assembly.
Selon la figure 1 l'arbre rotatif 14 est l'arbre d'un rotor et notamment d'un induit de démarreur 1, arbre 14 sur lequel est bobiné l'induit 3 dont les extrémités sont reliées à un collecteur 4 sur lequel frottent des balais 5 maintenus dans un porte balais 6 fixé par des moyens de fixation 17 sur un palier 2 dans lequel tourillonne l'extrémité libre de l'arbre 14 par l'intermédiaire d'un palier au xiliaire 7. According to Figure 1 the rotary shaft 14 is the shaft of a rotor and in particular of a starter armature 1, shaft 14 on which is wound the armature 3 whose ends are connected to a collector 4 on which rub brushes 5 held in a brush holder 6 fixed by fastening means 17 on a bearing 2 in which the free end of the shaft 14 revolves by means of an auxiliary bearing 7.
Ce palier auxiliaire est un roulement à billes7 dont l'anneau intérieur 7a est monté à force en bout de l'arbre 14 et dont l'anneau extérieur 7b vient se loger par glissement ajusté dans un logement borgne 10 réalisé dans le palier 2. This auxiliary bearing is a ball bearing 7 whose inner ring 7a is forcibly mounted at the end of the shaft 14 and whose outer ring 7b is housed by adjusted sliding in a blind housing 10 produced in the bearing 2.
Ainsi assemblé l'ensemble de l'induit 1 avec le roulement 7 en fonctionnement se décale longitudinalement par rapport au palier 2, il est donc nécessaire de limiter ce jeu qui est amplifié sous l'effet des vitesses de rotation élevées. Thus assembled the assembly of the armature 1 with the bearing 7 in operation shifts longitudinally relative to the bearing 2, it is therefore necessary to limit this play which is amplified under the effect of the high rotational speeds.
Conformément à l'invention le rotor induit 1 comporte un évidement 8 apte à recevoir les branches 13 d'une épingle élastique 9 solidaire du porte balais 6. In accordance with the invention, the induced rotor 1 includes a recess 8 capable of receiving the arms 13 of an elastic pin 9 secured to the brush holder 6.
Cet évidement 8 est avantageusement défini par la disposition de 1 'arbre 14 du collecteur 4 et du roulement 7. This recess 8 is advantageously defined by the arrangement of the shaft 14 of the manifold 4 and of the bearing 7.
L'épingle élastique 9 est réalisée à partir d'un fil ressort du type dit "corde à pianos et comporte une partie centrale 15 droite qui comporte à chaque extrémité une branche rabattue 13 dont 1 'extré- mité libre comporte un crochet 16. The elastic pin 9 is produced from a spring wire of the so-called "piano string" type and has a straight central part 15 which has at each end a folded branch 13, the free end of which has a hook 16.
Le porte balais 6 comporte les moyens de maintien de l'épingle élastique 9 qui sont constitués par des crochets 11 et 12, d'oit un assemblage de l'épingle 9 très aisé en la suspendant dans les cro- chets li par sa partie centrale 15. The brush holder 6 comprises the means for holding the elastic pin 9 which are constituted by hooks 11 and 12, or an assembly of the pin 9 very easy by suspending it in the hooks linked by its central part 15.
L'assemblage de l'ensemble s'effectue alors de la façon suivante; - suspension de 1' épingle 9 sur le porte balais 6 - positionnement du porte balais ainsi équipé sur ltensemble du rotor d'induit 1. The assembly of the assembly is then carried out as follows; - suspension of the pin 9 on the brush holder 6 - positioning of the brush holder thus equipped on the whole of the armature rotor 1.
- serrage des branches 13 de l'épingle 9 dans l'évidement 8 jusqu'à ce que les crochets 16 soient entre les deux crochets 12 du portebalais 6 puis relâchement du serrage pour que les deux crochets 16 soient prisonniers des crochets 12.tightening of the branches 13 of the pin 9 in the recess 8 until the hooks 16 are between the two hooks 12 of the brush holder 6 and then loosening of the tightening so that the two hooks 16 are caught in the hooks 12.
- positionnement du rotor induit par glissement du roulement 7 dans le logement borgne 10 réalisé dans le palier 2.- positioning of the rotor induced by sliding of the bearing 7 in the blind housing 10 produced in the bearing 2.
- immobilisation, par tout moyen 17 connu, du porte balais 6 dans le palier 2.immobilization, by any known means 17, of the brush holder 6 in the bearing 2.
La profondeur "b" du logement 10 est inférieure à la largeur du roulement à billes 7. The depth "b" of the housing 10 is less than the width of the ball bearing 7.
L'ensemble porte balais 6, épingle élastique 9 est maintenu écarté du palier 2 par des entretoises 18 qui peuvent être obtenues de matière avec le palier 2 et dont la hauteur est définie de façon à ce qu'après assemblage épingle élastique 9 soit en appui contre la face libre de l'anneau extérieur 7b du roulement à billes 7 afin de le maintenir fermement dans le logement 10 du palier 2. The brush holder 6, elastic pin 9 assembly is kept apart from the bearing 2 by spacers 18 which can be obtained from the material with the bearing 2 and the height of which is defined so that after assembly the elastic pin 9 is in contact against the free face of the outer ring 7b of the ball bearing 7 in order to hold it firmly in the housing 10 of the bearing 2.
TJn tel dispositif a donc les avantages essentiels suivants : il assure une étanchéité effective du palier au niveau de la rotation du rotor induit 1 ; il autorise un montage en aveugle du rotor induit 1 dans le palier 2 ; il permet dlatteindre de grandes vitesses de rotation avec un jeu axial réduit entre le rotor induit 1 et le palier 2
Dans le cas d'un arbre 14 sans roulement à billes l'évidement 8 peut avantageusement être remplacé par une gorge réalisée dans ledit arbre il; de façon à obtenir une surface d'appui pour l'épingle 9. TJn such a device therefore has the following essential advantages: it ensures an effective seal of the bearing at the level of the rotation of the induced rotor 1; it allows blind mounting of the induced rotor 1 in the bearing 2; it makes it possible to reach high speeds of rotation with a reduced axial clearance between the induced rotor 1 and the bearing 2
In the case of a shaft 14 without ball bearing the recess 8 can advantageously be replaced by a groove made in said shaft it; so as to obtain a bearing surface for the pin 9.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8410657A FR2567334B3 (en) | 1984-07-05 | 1984-07-05 | LONGITUDINAL HOLDING DEVICE FOR A ROTARY SHAFT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8410657A FR2567334B3 (en) | 1984-07-05 | 1984-07-05 | LONGITUDINAL HOLDING DEVICE FOR A ROTARY SHAFT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2567334A3 true FR2567334A3 (en) | 1986-01-10 |
FR2567334B3 FR2567334B3 (en) | 1986-06-20 |
Family
ID=9305813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8410657A Expired FR2567334B3 (en) | 1984-07-05 | 1984-07-05 | LONGITUDINAL HOLDING DEVICE FOR A ROTARY SHAFT |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2567334B3 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE589980C (en) * | 1933-12-19 | Siemens Schuckertwerke Akt Ges | Bearing insert for electrical machines | |
GB638502A (en) * | 1946-10-30 | 1950-06-07 | Electrolux Ab | Improvements in or relating to bearings |
US2731575A (en) * | 1953-07-17 | 1956-01-17 | Gen Electric | End shield and bearing locking arrangement |
FR1144902A (en) * | 1956-03-01 | 1957-10-18 | Rech S Et D Expl De Procedes E | Improvements to small electric motors |
FR2402333A1 (en) * | 1977-09-01 | 1979-03-30 | Bosch Gmbh Robert | LOW POWER ELECTRIC MACHINE |
GB2082848A (en) * | 1980-07-30 | 1982-03-10 | Bosch Gmbh Robert | Electric starter motor |
-
1984
- 1984-07-05 FR FR8410657A patent/FR2567334B3/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE589980C (en) * | 1933-12-19 | Siemens Schuckertwerke Akt Ges | Bearing insert for electrical machines | |
GB638502A (en) * | 1946-10-30 | 1950-06-07 | Electrolux Ab | Improvements in or relating to bearings |
US2731575A (en) * | 1953-07-17 | 1956-01-17 | Gen Electric | End shield and bearing locking arrangement |
FR1144902A (en) * | 1956-03-01 | 1957-10-18 | Rech S Et D Expl De Procedes E | Improvements to small electric motors |
FR2402333A1 (en) * | 1977-09-01 | 1979-03-30 | Bosch Gmbh Robert | LOW POWER ELECTRIC MACHINE |
GB2082848A (en) * | 1980-07-30 | 1982-03-10 | Bosch Gmbh Robert | Electric starter motor |
Also Published As
Publication number | Publication date |
---|---|
FR2567334B3 (en) | 1986-06-20 |
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ST | Notification of lapse |