EP2504562B1 - Starter - Google Patents

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Publication number
EP2504562B1
EP2504562B1 EP10779796.1A EP10779796A EP2504562B1 EP 2504562 B1 EP2504562 B1 EP 2504562B1 EP 10779796 A EP10779796 A EP 10779796A EP 2504562 B1 EP2504562 B1 EP 2504562B1
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EP
European Patent Office
Prior art keywords
bearing
unit
output shaft
starter
flange unit
Prior art date
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Application number
EP10779796.1A
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German (de)
French (fr)
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EP2504562A1 (en
Inventor
Oliver Capek
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of EP2504562A1 publication Critical patent/EP2504562A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
    • F02N15/046—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/062—Starter drives
    • F02N15/065—Starter drives with blocking means

Definitions

  • the invention relates to a device for supporting an output shaft having a flange unit at one end at an intermediate bearing in a starter according to the preamble of claim 1.
  • the invention relates to a starter and a transmission, in particular a starter with internal reduction gear for reducing the rotational speed while increasing the torque according to the type of independent claims.
  • the subject of the present invention are starters for vehicles with internal combustion engines.
  • starters for vehicles with internal combustion engines which usually include a DC electric motor for driving the internal combustion engine.
  • starters or starter motors are responsible for a meshing or a hub in the ring gear, a relay fork lever system and a coarse thread.
  • the stroke also referred to as distance, or more precisely a single-track movement, is composed as follows: A magnetic relay pulls a fork lever backwards. At the same time a freewheel gear is pushed forward via a translation. When the relay is switched, an electric motor starts to turn.
  • a driven shaft which is also referred to as conventionally as a drive shaft, seated coarse thread rotated and a driver pushed over flanks of the coarse thread forward.
  • This axial and radial movement in conjunction with a Einspurfeder serves to facilitate finding tooth gaps in the sprocket.
  • the coarse thread is used for power or torque transmission.
  • the front end plate of the starter has a bearing bore for receiving a pinion shaft.
  • a bearing bore for receiving a pinion shaft.
  • the output shaft of the known starter is mounted over a cylindrical region between coarse thread and a planetary plate formed at the end of the output shaft.
  • the DE 19536177 A1 shows a starter with a thrust washer between a planetary gear and an intermediate bearing.
  • the starter according to the invention with the features of the main claim has the opposite advantage that the bearing is formed directly on a flange unit (planetary plate) at the end of the output shaft. Due to the design of the bearing on the flange, the output shaft at least in the axial direction suction shapable, since the machined for the bearing according to the prior art, in particular hardened surface in front of the flange can be omitted.
  • a fixed bearing fixed bearing means are provided to secure the output shaft at least in the axial direction.
  • the fixed bearing means are formed on the Flan unit, in particular so that the fixed bearing means are arranged in the form of thrust washers on both sides of the Flan unit and these, at least partially, contact accordingly.
  • an axial securing of the output shaft by the arrangement of the bearing on the flange is easier to realize because compared to the prior art no snap ring or the like is to be attached to the output shaft. Rather, the effort is reduced to produce the output shaft due to the inventive arrangement of the bearing at the shaft end on the flange.
  • hardening of the bearing area on the output shaft can be dispensed with or a wall of the vehicle can be hardened at least be reduced.
  • a first fixed bearing means is designed as an intermediate bearing projection, which is arranged on the output side of the flange unit.
  • the intermediate bearing is arranged substantially in the radial direction at a distance from a peripheral surface of the flange unit.
  • the intermediate bearing protrudes in the axial direction over the peripheral surface of the flange.
  • At an outstanding part of the intermediate bearing at least one extending in the direction of the output shaft intermediate bearing projection is formed. This serves to secure a recorded between Flan unit, intermediate storage and Eisenlagervorsprung storage unit in the axial direction.
  • an axial securing on the output shaft for example via a snap ring inserted into a groove of the output shaft is superfluous, so that the output shaft is smaller in construction, in particular in the axial direction, is formed.
  • a thrust washer is provided between the intermediate bearing projection and the flange unit. The thrust washer contacts the flange unit and / or the intermediate bearing projection.
  • a second fixed bearing means is designed as an armature unit arranged in the flange unit, which armature is arranged on the flange unit on a drive side opposite the output side.
  • the Flan unit has on its drive side a recess for receiving a shaft journal of a driving shaft.
  • the shaft journal is mounted in the recess via a bearing unit.
  • the flange unit is machined on the drive side.
  • a second fixed bearing means is provided on the recess.
  • the second fixed bearing means is designed as a shoulder in a mounted in the output shaft armature with a thrust washer.
  • the fixed bearing means are formed in the axial and / or radial direction of the output shaft spaced.
  • a fixed bearing can be easily formed.
  • the first locking means secures the output shaft axially in a first direction.
  • the second locking means secures the output shaft in the other axial direction.
  • a fixed bearing is formed on the flange unit.
  • the output shaft requires no additional hardened or machined areas, whereby the effort for the production of the output shaft is reduced.
  • the output shaft can be made shorter in the axial direction. Due to the spaced arrangement of the fixed bearing means optimized with respect to the male loads storage is realized.
  • a bearing unit between Flan unit and intermediate storage is provided at a radially outer end of the Flanheitheit.
  • the bearing unit is designed as a radial bearing, designed as a needle sleeve, the radial bearing is preferably pressed so that it is secured by a resulting surface pressure between an outer sleeve of the radial bearing and the intermediate storage.
  • the thrust washer and the collar on the intermediate bearing serve as an axial boundary of the flange unit in the direction of coarse thread. In the other direction, the Flan unit is limited by the thrust washer and the shoulder on the anchor.
  • the bearing unit between the armature shaft and flange is designed as a radial bearing.
  • the radial bearing is preferably pressed so that it is secured between armature shaft and flange (sleeve).
  • An advantageous embodiment of the present invention also provides that the flange unit is designed as a planetary plate. In this way, a small-sized starter can be formed, at least in the axial direction.
  • the output shaft has a coarse thread, which free Laperstellenok to the Flan unit, in particular the planet plate, adjacent. A cylindrical surface to form a bearing omitted.
  • the entire output shaft is designed to be smaller at least around the intermediate storage area outside the flange unit.
  • the entire starter is designed to be smaller and more compact.
  • the figure shows a section of a starter 100 in longitudinal section with a device for supporting an output shaft 2.
  • the output shaft 2 has at one end a flange unit 4 designed as a planetary plate.
  • the device for supporting the output shaft 2 comprises an intermediate bearing 5 in the starter 100.
  • the detail specifically represents an output shaft bearing 1 in which an output shaft 2 is coupled to a transmission, which is preferably designed as a planetary gear.
  • the output shaft 2 has on its drive side, that is, the end of the output shaft 2, which is engageable with the gear engaged, a coarse thread 3. In the direction of the drive side behind the coarse thread 3 formed as a planetary plate flange unit 4 is formed.
  • Trained as a planetary plate flange unit 4 comprises plate-like part of the drive side engageable with the output shaft 2 transmission, which is designed as a planetary gear 12 and a central sun gear 11 and planetary gears formed gears 10 includes, of which only one is shown here.
  • the intermediate bearing 5 is provided for storage of the output shaft 2 at the drive end.
  • the intermediate storage 5 has a collar 7. Together with an adjacent to the collar 7 thrust washer 7a, a first locking means is realized.
  • a radial bearing 6 is arranged, which is designed here as a needle bearing, more precisely as a needle sleeve. This radial bearing 6 is pressed and secured over the resulting surface pressure.
  • a second locking means is provided, which is formed in the embodiment shown in the figure as an anchor 8.
  • the armature 8 is received in a recess for supporting a shaft journal 9 of a drive shaft, which is formed in the flange unit 4 and / or the output shaft 2, and projects at the drive-side end of the output shaft 2.
  • the second locking means is formed which prevents axial movement of the flange unit 4 in the direction of the drive shaft.
  • the output shaft bearing 1 is designed as a fixed bearing. For improved absorption occurring loads a Anlautemia is provided.
  • the starter 100 is constructed as known from the prior art and described here only by way of example.
  • the starter 100 has a drive or starter motor and an engagement relay.
  • the starter motor and the engagement relay are attached to a common drive end shield.
  • the starter motor is functionally to a pinion - more precisely a starter pinion - to drive when it is meshed in the ring gear of the internal combustion engine, not shown here.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Retarders (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Sliding-Contact Bearings (AREA)
  • Support Of The Bearing (AREA)

Description

Die Erfindung betrifft eine Einrichtung zum Lagern einer an einem Ende eine Flanscheinheit aufweisenden Abtriebswelle an einem Zwischenlager in einem Starter gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for supporting an output shaft having a flange unit at one end at an intermediate bearing in a starter according to the preamble of claim 1.

Stand der TechnikState of the art

Die Erfindung geht aus von einem Starter und einem Getriebe, insbesondere einem Starter mit internem Untersetzungsgetriebe zur Reduzierung der Drehzahl bei gleichzeitiger Erhöhung des Drehmoments nach Gattung der unabhängigen Ansprüche.The invention relates to a starter and a transmission, in particular a starter with internal reduction gear for reducing the rotational speed while increasing the torque according to the type of independent claims.

Gegenstand der vorliegenden Erfindung sind Starter für Fahrzeuge mit Verbrennungsmotoren.The subject of the present invention are starters for vehicles with internal combustion engines.

Aus dem Stand der Technik sind Starter für Fahrzeuge mit Verbrennungsmotoren bekannt, die in der Regel einen Gleichstromelektromotor zum Antreiben des Verbrennungsmotors umfassen. In derartigen Startern oder Startermotoren sind für ein Einspuren oder einen Hub in den Zahnkranz ein Relais-Gabelhebelsystem und ein Steilgewinde verantwortlich. Der Hub, auch als Distanz bezeichnet, oder genauer eine Einspurbewegung setzt sich wie folgt zusammen: Ein Magnetrelais zieht einen Gabelhebel nach hinten. Gleichzeitig wird über eine Übersetzung ein Freilaufgetriebe nach vorne geschoben. Wenn das Relais geschaltet wird, fängt ein Elektromotor sich an zu drehen. Dabei wird bevorzugt ein auf einer Abtriebswelle, die je nach Konvention auch als Antriebswelle bezeichnet wird, sitzendes Steilgewinde gedreht und ein Mitnehmer über Flanken des Steilgewindes nach vorne geschoben. Diese axiale und radiale Bewegung in Verbindung mit einer Einspurfeder dient zum leichteren Finden von Zahnlücken im Zahnkranz. Gleichzeitig wird dabei das Steilgewinde zur Kraft- bzw. Drehmomentübertragung genutzt.From the prior art starters for vehicles with internal combustion engines are known, which usually include a DC electric motor for driving the internal combustion engine. In such starters or starter motors are responsible for a meshing or a hub in the ring gear, a relay fork lever system and a coarse thread. The stroke, also referred to as distance, or more precisely a single-track movement, is composed as follows: A magnetic relay pulls a fork lever backwards. At the same time a freewheel gear is pushed forward via a translation. When the relay is switched, an electric motor starts to turn. In this case, preferably on a driven shaft, which is also referred to as conventionally as a drive shaft, seated coarse thread rotated and a driver pushed over flanks of the coarse thread forward. This axial and radial movement in conjunction with a Einspurfeder serves to facilitate finding tooth gaps in the sprocket. At the same time the coarse thread is used for power or torque transmission.

Aus der DE 197 26 726 A1 ist ein freiausstoßender Starter zum Andrehen von Verbrennungskraftmaschinen in Kraftfahrzeugen bekannt. Das vordere Lagerschild des Starters weist eine Lagerbohrung zur Aufnahme eines Ritzelschaftes auf. Für eine kostengünstige, geräuscharme und platzsparende Lagerung bei ausreichender Lebensdauer der Lagerstelle wird als Lager für den Ritzelschaft ein Nadellager in die Lagerbohrung eingesetzt, dessen Nadeln unmittelbar auf einem gehärteten Bereich des Ritzelschaftes aufliegen. Die Abtriebswelle des bekannten Starters ist über einen zylindrischen Bereich zwischen Steilgewinde und einem am Ende der Abtriebswelle ausgebildeten Planetenteller gelagert.From the DE 197 26 726 A1 is a free-launching starter for starting internal combustion engines in motor vehicles known. The front end plate of the starter has a bearing bore for receiving a pinion shaft. For a low-cost, low-noise and space-saving storage with sufficient life of the bearing is used as a bearing for the pinion shaft, a needle bearing in the bearing bore, the needles rest directly on a hardened region of the pinion shaft. The output shaft of the known starter is mounted over a cylindrical region between coarse thread and a planetary plate formed at the end of the output shaft.

Aus der DE 3523078 A1 ist ein Starter mit einem einteiligen Lager (Lagerbuchse) bekannt, das in der Lage ist, sowohl axiale als auch radiale Lasten aufzunehmen.From the DE 3523078 A1 For example, a starter with a one-piece bearing (bushing) capable of receiving both axial and radial loads is known.

Die DE 19536177 A1 zeigt einen Starter mit einer Anlaufscheibe zwischen einem Planetengetriebe und einem Zwischenlager.The DE 19536177 A1 shows a starter with a thrust washer between a planetary gear and an intermediate bearing.

Offenbarung der ErfindungDisclosure of the invention

Der erfindungsgemäße Starter mit den Merkmalen des Hauptanspruches hat dem gegenüber den Vorteil, dass die Lagerstelle direkt an einer Flanscheinheit (Planetenteller) am Ende der Abtriebswelle ausgebildet ist. Durch die Ausbildung der Lagerstelle an dem Flansch ist die Abtriebswelle zumindest in Axialrichtung kleinbauend gestaltbar, da die für die Lagerstelle gemäß dem Stand der Technik bearbeitete, insbesondere gehärtete Fläche vor dem Flansch entfallen kann. Zur Ausbildung eines Festlagers sind Festlagermittel vorgesehen, um die Abtriebswelle zumindest in axialer Richtung zu sichern. Die Festlagermittel sind an der Flanscheinheit ausgebildet, insbesondere so, dass die Festlagermittel in Form von Anlaufscheiben beidseitig an der Flanscheinheit angeordnet sind und diese, zumindest teilweise, entsprechend kontaktieren. Zudem ist eine axiale Sicherung der Abtriebswelle durch die Anordnung der Lagerstelle an dem Flansch einfacher realisierbar, da gegenüber dem Stand der Technik kein Sprengring oder dergleichen an der Abtriebswelle anzubringen ist. Vielmehr ist zur Herstellung der Abtriebswelle aufgrund der erfindungsgemäßen Anordnung der Lagerstelle am Wellenende an dem Flansch der Aufwand verringert. Insbesondere kann ein Härten des Lagerstellenbereichs an der Abtriebswelle entfallen oder ein Autwand für ein Härten zumindest reduziert werden. Zudem entfällt das spanende Bearbeiten der Abtriebswelle zur Ausbildung einer Nut für den Sprengring.The starter according to the invention with the features of the main claim has the opposite advantage that the bearing is formed directly on a flange unit (planetary plate) at the end of the output shaft. Due to the design of the bearing on the flange, the output shaft at least in the axial direction kleinbauend shapable, since the machined for the bearing according to the prior art, in particular hardened surface in front of the flange can be omitted. To form a fixed bearing fixed bearing means are provided to secure the output shaft at least in the axial direction. The fixed bearing means are formed on the Flan unit, in particular so that the fixed bearing means are arranged in the form of thrust washers on both sides of the Flan unit and these, at least partially, contact accordingly. In addition, an axial securing of the output shaft by the arrangement of the bearing on the flange is easier to realize because compared to the prior art no snap ring or the like is to be attached to the output shaft. Rather, the effort is reduced to produce the output shaft due to the inventive arrangement of the bearing at the shaft end on the flange. In particular, hardening of the bearing area on the output shaft can be dispensed with or a wall of the vehicle can be hardened at least be reduced. In addition, eliminates the machining of the output shaft to form a groove for the snap ring.

Es ist vorgesehen, dass ein erstes Festlagermittel als Zwischenlagervorsprung ausgebildet ist, welcher abtriebsseitig der Flanscheinheit angeordnet ist. Das Zwischenlager ist im Wesentlichen in radialer Richtung von einer Umfangsfläche der Flanscheinheit beabstandet angeordnet. Dabei ragt das Zwischenlager, in axialer Richtung über die Umfangsfläche des Flansches heraus. An einem herausragenden Teil des Zwischenlagers ist mindestens ein sich in Richtung Abtriebswelle erstreckender Zwischenlagervorsprung ausgebildet. Dieser dient zur Sicherung einer zwischen Flanscheinheit, Zwischenlager und Zwischenlagervorsprung aufgenommenen Lagereinheit in axialer Richtung. Auf diese Weise ist eine axiale Sicherung an der Abtriebswelle, beispielsweise über einen in eine Nut der Abtriebswelle eingesetzten Sprengring überflüssig, sodass die Abtriebswelle kleiner bauend, insbesondere in axialer Richtung, ausgebildet ist. Zwischen dem Zwischenlagervorsprung und der Flanscheinheit ist eine Anlaufscheibe vorgesehen. Die Anlaufscheibe kontaktiert dabei die Flanscheinheit und/oder den Zwischenlagervorsprung.It is provided that a first fixed bearing means is designed as an intermediate bearing projection, which is arranged on the output side of the flange unit. The intermediate bearing is arranged substantially in the radial direction at a distance from a peripheral surface of the flange unit. In this case, the intermediate bearing protrudes in the axial direction over the peripheral surface of the flange. At an outstanding part of the intermediate bearing at least one extending in the direction of the output shaft intermediate bearing projection is formed. This serves to secure a recorded between Flan unit, intermediate storage and Zwischenlagervorsprung storage unit in the axial direction. In this way, an axial securing on the output shaft, for example via a snap ring inserted into a groove of the output shaft is superfluous, so that the output shaft is smaller in construction, in particular in the axial direction, is formed. Between the intermediate bearing projection and the flange unit a thrust washer is provided. The thrust washer contacts the flange unit and / or the intermediate bearing projection.

Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der in den unabhängigen und nebengeordneten Ansprüchen vorgegebenen Vorrichtungen möglich.The measures listed in the dependent claims advantageous refinements and improvements of the independent and independent claims predetermined devices are possible.

Zudem ist es erfindungsgemäß vorteilhaft, wenn ein zweites Festlagermittel als in der Flanscheinheit angeordnete Ankereinheit ausgebildet ist, welche auf einer, der Abtriebsseite gegenüber liegenden, Antriebsseite an der Flanscheinheit angeordnet ist. Die Flanscheinheit weist an ihrer Antriebsseite eine Ausnehmung zur Aufnahme eines Wellenzapfens einer antreibenden Welle auf. Der Wellenzapfen ist in der Ausnehmung über eine Lagereinheit gelagert. Somit ist die Flanscheinheit antriebsseitig bearbeitet. Zur axialen Sicherung und zur Ausbildung eines Festlagers an der Flanscheinheit ist ein zweites Festlagermittel an der Ausnehmung vorgesehen. Das zweite Festlagermittel ist als Absatz in einem in der Abtriebswelle gelagerten Anker mit einer Anlaufscheibe ausgebildet. Durch eine entsprechende Bearbeitung des ohnehin vorgesehen Ankers, kann somit eine wirksame axiale Sicherung der Lagerung an der Flanscheinheit realisiert werden, ohne dass eine zusätzliche Bearbeitung an der Abtriebswelle vorgesehen ist. Zwischen Ankereinheit und Flanscheinheit ist die Anlaufscheibe vorgesehen. Diese kontaktiert die Ankereinheit und/oder die Flanscheinheit.In addition, it is advantageous according to the invention if a second fixed bearing means is designed as an armature unit arranged in the flange unit, which armature is arranged on the flange unit on a drive side opposite the output side. The Flan unit has on its drive side a recess for receiving a shaft journal of a driving shaft. The shaft journal is mounted in the recess via a bearing unit. Thus, the flange unit is machined on the drive side. For axial securing and for forming a fixed bearing on the flange unit, a second fixed bearing means is provided on the recess. The second fixed bearing means is designed as a shoulder in a mounted in the output shaft armature with a thrust washer. By an appropriate processing of the already provided armature, thus an effective axial securing of the bearing can be realized on the flange unit, without any additional processing is provided on the output shaft. Between anchor unit and Flan unit is the Thrust washer provided. This contacts the anchor unit and / or the flange unit.

In einer vorteilhaften Ausgestaltung ist vorgesehen, dass die Festlagermittel in axialer und/oder radialer Richtung der Abtriebswelle beabstandet ausgebildet sind. Somit lässt sich auf einfache Weise ein Festlager ausbilden. Das erste Festlagermittel sichert die Abtriebswelle axial In eine erste Richtung. Das zweite Festlagermittel sichert die Abtriebswelle in die andere axiale Richtung. Auf diese Weise ist ein Festlager an der Flanscheinheit ausgebildet. Die Abtriebswelle erfordert keine zusätzlichen gehärteten oder bearbeiteten Bereiche, wodurch der Aufwand für die Herstellung der Abtriebswelle reduziert ist. Zudem kann die Abtriebswelle in axiale Richtung kürzer bauend ausgebildet werden. Durch die beabstandete Anordnung der Festlagermittel ist eine hinsichtlich der aufzunehmenden Belastungen optimierte Lagerung realisiert.In an advantageous embodiment it is provided that the fixed bearing means are formed in the axial and / or radial direction of the output shaft spaced. Thus, a fixed bearing can be easily formed. The first locking means secures the output shaft axially in a first direction. The second locking means secures the output shaft in the other axial direction. In this way, a fixed bearing is formed on the flange unit. The output shaft requires no additional hardened or machined areas, whereby the effort for the production of the output shaft is reduced. In addition, the output shaft can be made shorter in the axial direction. Due to the spaced arrangement of the fixed bearing means optimized with respect to the male loads storage is realized.

Es ist vorgesehen, dass an einem radial äußeren Ende der Flanscheinheit eine Lagereinheit zwischen Flanscheinheit und Zwischenlager vorgesehen ist. Die Lagereinheit ist als Radiallager, ausgeführt als Nadelhülse, ausgebildet Das Radiallager ist bevorzugt eingepresst, sodass dieses über eine resultierende Flächenpressung zwischen einer Außenhülse des Radiallagers und dem Zwischenlager gesichert ist. Die Anlaufscheibe und der Bund an dem Zwischenlager dienen als axiale Begrenzung der Flanscheinheit in Richtung Steilgewinde. In die andere Richtung ist die Flanscheinheit über die Anlaufscheibe und den Absatz am Anker begrenzt. Durch die beiden Festlagermittel am Anker und an dem Zwischenlager ist ein Festlager an der Lagerstelle bzw. dem Zwischenlager realisiert.It is envisaged that a bearing unit between Flan unit and intermediate storage is provided at a radially outer end of the Flanheitheit. The bearing unit is designed as a radial bearing, designed as a needle sleeve, the radial bearing is preferably pressed so that it is secured by a resulting surface pressure between an outer sleeve of the radial bearing and the intermediate storage. The thrust washer and the collar on the intermediate bearing serve as an axial boundary of the flange unit in the direction of coarse thread. In the other direction, the Flan unit is limited by the thrust washer and the shoulder on the anchor. By the two fixed bearing means at the anchor and at the intermediate storage a fixed bearing is realized at the bearing point or the intermediate storage.

Entsprechend ist in einer weiteren vorteilhaften Ausgestaltung der Erfindung vorgesehen, dass die Lagereinheit zwischen Ankerwelle und Flansch als Radiallager ausgebildet ist. Das Radiallager ist bevorzugt aufgepresst, sodass dieses zwischen Ankerwelle und Flansch (Hülse) gesichert ist.Accordingly, it is provided in a further advantageous embodiment of the invention that the bearing unit between the armature shaft and flange is designed as a radial bearing. The radial bearing is preferably pressed so that it is secured between armature shaft and flange (sleeve).

Eine vorteilhafte Ausführung der vorliegenden Erfindung sieht darüber hinaus vor, dass die Flanscheinheit als Planetenteller ausgebildet ist. Auf diese Weise lässt sich ein zumindest in axialer Richtung kleinbauender Starter ausbilden.An advantageous embodiment of the present invention also provides that the flange unit is designed as a planetary plate. In this way, a small-sized starter can be formed, at least in the axial direction.

In noch einer anderen Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass die Abtriebswelle ein Steilgewinde aufweist, welches laperstellenfrei an die Flanscheinheit, insbesondere den Planetenteller, angrenzt. Eine zylindrische Fläche zur Ausbildung einer Lagerstelle entfällt. Die gesamte Abtriebswelle ist zumindest um den Zwischenlagerbereich außerhalb der Flanscheinheit kleiner bauend ausgebildet. Somit ist auch der gesamte Starter kleiner bauend und kompakter ausgebildet.In yet another embodiment of the present invention, it is provided that the output shaft has a coarse thread, which free Laperstellenfrei to the Flan unit, in particular the planet plate, adjacent. A cylindrical surface to form a bearing omitted. The entire output shaft is designed to be smaller at least around the intermediate storage area outside the flange unit. Thus, the entire starter is designed to be smaller and more compact.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Figur zeigt:

  • einen Ausschnitt eines Starters im Längsschnitt mit einer Einrichtung zum Lagern einer an einem Ende eine als Planetenteller ausgebildete Flanscheinheit aufweisenden Abtriebswelle an einem Zwischenlager in dem Starter.
An embodiment of the invention is illustrated in the drawing and explained in more detail in the following description. The figure shows:
  • a section of a starter in longitudinal section with a device for supporting a at one end of a trained as a planetary plate flange unit output shaft to an intermediate storage in the starter.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Die Figur zeigt einen Ausschnitt eines Starters 100 im Längsschnitt mit einer Einrichtung zum Lagern einer Abtriebswelle 2. Die Abtriebswelle 2 weist an einem Ende eine als Planetenteller ausgebildete Flanscheinheit 4 auf. Erfindungsgemäß umfasst die Einrichtung zum Lagern der Abtriebswelle 2 ein Zwischenlager 5 in dem Starter 100. Der Ausschnitt stellt genauer eine Abtriebswellenlagerung 1 dar, bei der eine Abtriebswelle 2 mit einem Getriebe, das bevorzugt als Planetenradgetriebe ausgebildet ist, gekoppelt ist. Die Abtriebswelle 2 weist an ihrer Antriebsseite, das heißt dem Ende der Abtriebswelle 2, welches mit dem Getriebe in Eingriff bringbar ist, ein Steilgewinde 3 auf. In Richtung Antriebsseite ist hinter dem Steilgewinde 3 die als Planetenteller ausgebildete Flanscheinheit 4 ausgebildet. Die als Planetenteller ausgebildete Flanscheinheit 4 umfasst tellerartig einen Teil des antriebsseitig in Eingriff mit der Abtriebswelle 2 bringbaren Getriebes, welches als Planetengetriebe 12 ausgebildet ist und ein zentrales Sonnenrad 11 und als Planetenräder ausgebildete Getrieberäder 10 umfasst, von denen hier nur eins dargestellt ist. Zur Lagerung der Abtriebswelle 2 an dem antriebsseitigen Ende ist das Zwischenlager 5 vorgesehen. Das Zwischenlager 5 weist einen Bund 7 auf. Zusammen mit einer an den Bund 7 angrenzenden Anlaufscheibe 7a ist ein erstes Feststellmittel realisiert. Zwischen Flanscheinheit 4 und Zwischenlager 5 ist ein Radiallager 6 angeordnet, das hier als Nadellager, genauer als Nadelhülse ausgebildet ist. Dieses Radiallager 6 ist aufgepresst und wird über die daraus resultierende Flächenpressung gesichert. Um die Abtriebswellenlagerung 1 als Festlager auszubilden, ist ein zweites Feststellmittel vorgesehen, das in dem in der Figur dargestellten Ausführungsbeispiel als Anker 8 ausgebildet ist. Der Anker 8 ist in einer Ausnehmung zur Lagerung eines Wellenzapfens 9 einer Antriebswelle, die in der Flanscheinheit 4 und/oder der Abtriebswelle 2 ausgebildet ist, aufgenommen und ragt an dem antriebsseitigen Ende der Abtriebswelle 2 hervor. Durch Ausbildung eines entsprechenden Absatzes 8a in dem Anker 8 ist das zweite Feststellmittel gebildet, welches eine axiale Bewegung der Flanscheinheit 4 in Richtung Antriebswelle verhindert. Auf diese Weise ist die Abtriebswellenlagerung 1 als Festlager ausgebildet. Zur verbesserten Aufnahme auftretender Belastungen ist eine Anlautscheibe vorgesehen.The figure shows a section of a starter 100 in longitudinal section with a device for supporting an output shaft 2. The output shaft 2 has at one end a flange unit 4 designed as a planetary plate. According to the invention, the device for supporting the output shaft 2 comprises an intermediate bearing 5 in the starter 100. The detail specifically represents an output shaft bearing 1 in which an output shaft 2 is coupled to a transmission, which is preferably designed as a planetary gear. The output shaft 2 has on its drive side, that is, the end of the output shaft 2, which is engageable with the gear engaged, a coarse thread 3. In the direction of the drive side behind the coarse thread 3 formed as a planetary plate flange unit 4 is formed. Trained as a planetary plate flange unit 4 comprises plate-like part of the drive side engageable with the output shaft 2 transmission, which is designed as a planetary gear 12 and a central sun gear 11 and planetary gears formed gears 10 includes, of which only one is shown here. For storage of the output shaft 2 at the drive end, the intermediate bearing 5 is provided. The intermediate storage 5 has a collar 7. Together with an adjacent to the collar 7 thrust washer 7a, a first locking means is realized. Between Flan unit 4 and intermediate bearing 5 is a radial bearing 6 is arranged, which is designed here as a needle bearing, more precisely as a needle sleeve. This radial bearing 6 is pressed and secured over the resulting surface pressure. To form the output shaft bearing 1 as a fixed bearing, a second locking means is provided, which is formed in the embodiment shown in the figure as an anchor 8. The armature 8 is received in a recess for supporting a shaft journal 9 of a drive shaft, which is formed in the flange unit 4 and / or the output shaft 2, and projects at the drive-side end of the output shaft 2. By forming a corresponding shoulder 8a in the armature 8, the second locking means is formed which prevents axial movement of the flange unit 4 in the direction of the drive shaft. In this way, the output shaft bearing 1 is designed as a fixed bearing. For improved absorption occurring loads a Anlautscheibe is provided.

Der Starter 100 ist wie aus dem Stand der Technik bekannt aufgebaut und hier nur exemplarisch beschrieben. Beispielsweise weist der Starter 100 einen Antriebs- oder Startermotor und ein Einrückrelais auf. Der Startermotor und das Einrückrelais sind an einem gemeinsamen Antriebslagerschild befestigt. Der Startermotor dient funktionell dazu, ein Ritzel - genauer ein Andrehritzel - anzutreiben, wenn es im Zahnkranz der hier nicht dargestellten Verbrennungskraftmaschine eingespurt ist.The starter 100 is constructed as known from the prior art and described here only by way of example. For example, the starter 100 has a drive or starter motor and an engagement relay. The starter motor and the engagement relay are attached to a common drive end shield. The starter motor is functionally to a pinion - more precisely a starter pinion - to drive when it is meshed in the ring gear of the internal combustion engine, not shown here.

Claims (6)

  1. Starter (100) for cranking an internal combustion engine, having a drive-output shaft (2) which, on one end, has a flange unit (4), having a device for the mounting of the drive-output shaft (2) on an intermediate bearing (5) of the starter (100), wherein the intermediate bearing (5) has an intermediate-bearing projection (7), and comprising fixed bearing means (5, 6, 7, 7a, 8, 8a) for securing the drive-output shaft (2) axially in position relative to the intermediate bearing (5), wherein the fixed bearing means (5, 6, 7, 7a, 8, 8a) are arranged on both sides on the flange unit (4) and, on a radially outer end of the flange unit (4), a bearing unit (6) is provided between flange unit (4) and intermediate bearing (5), characterized in that the bearing unit (6) is in the form of a radial bearing, designed as a needle-roller bearing, and, on one side, a stop disk (7a) is arranged between the intermediate-bearing projection (7) and the flange unit (4), which stop disk serves for securing the bearing unit (6) in an axial direction, and on the other side, a stop disk (7a) is arranged between armature unit and the flange unit (4).
  2. Starter (100) according to Claim 1, characterized in that a first fixed bearing means is in the form of an intermediate-bearing projection (7) which is arranged on the drive-output side on the flange unit (4).
  3. Starter (100) according to Claim 1 or 2, characterized in that a second fixed bearing means is formed as an armature unit (8, 8a) arranged in the flange unit (4), which armature unit is arranged on a drive-input side, situated opposite the drive-output side, on the flange unit (4).
  4. Starter (100) according to one of the preceding Claims 1 to 3, characterized in that the fixed bearing means (5, 6, 7, 7a, 8, 8a) are formed so as to be spaced apart in an axial and/or radial direction of the drive-output shaft (2).
  5. Starter (100) according to Claims 1 to 4, characterized in that the flange unit (4) is in the form of a planet disc.
  6. Starter (100) according to Claim 5, characterized in that the drive-output shaft (2) has a coarse-pitched thread (3) which adjoins the flange unit (4), in particular the planet disc, without a bearing point.
EP10779796.1A 2009-11-23 2010-11-17 Starter Active EP2504562B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910046985 DE102009046985A1 (en) 2009-11-23 2009-11-23 Starter gear with Planetentellerlagerung
PCT/EP2010/067619 WO2011061202A1 (en) 2009-11-23 2010-11-17 Starter gearbox having a planetary gear bearing

Publications (2)

Publication Number Publication Date
EP2504562A1 EP2504562A1 (en) 2012-10-03
EP2504562B1 true EP2504562B1 (en) 2017-01-11

Family

ID=43531795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10779796.1A Active EP2504562B1 (en) 2009-11-23 2010-11-17 Starter

Country Status (5)

Country Link
EP (1) EP2504562B1 (en)
CN (1) CN102639866B (en)
DE (1) DE102009046985A1 (en)
HU (1) HUE033593T2 (en)
WO (1) WO2011061202A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2226878A (en) * 1939-12-08 1940-12-31 Electrical Dev Co Inc Transmission mechanism
JPS58132170U (en) * 1982-03-01 1983-09-06 三菱電機株式会社 planetary gear starter
US4510406A (en) * 1983-02-03 1985-04-09 Mitsubishi Denki Kabushiki Kaisha Multi-use starting device
JPS60173366A (en) * 1984-02-15 1985-09-06 Nippon Denso Co Ltd Starter
JPS60209665A (en) * 1984-04-02 1985-10-22 Nippon Denso Co Ltd Starter
FR2566868B1 (en) * 1984-06-29 1990-01-05 Paris & Du Rhone EPICYCLOIDAL REDUCER WITH CENTRIFUGAL LOCK
US4896551A (en) * 1987-04-15 1990-01-30 Mitsuba Electric Manufacturing Co., Ltd. Starter motor and process of forming pinion shaft used in the starter motor
JP3338244B2 (en) 1995-08-18 2002-10-28 三菱電機株式会社 Planetary gear reduction mechanism
DE29704209U1 (en) 1997-03-07 1998-07-02 Robert Bosch Gmbh, 70469 Stuttgart Free-kicking starter
DE202007012098U1 (en) * 2007-08-29 2008-01-03 Robert Bosch Gmbh starter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN102639866A (en) 2012-08-15
EP2504562A1 (en) 2012-10-03
HUE033593T2 (en) 2017-12-28
DE102009046985A1 (en) 2011-05-26
WO2011061202A1 (en) 2011-05-26
CN102639866B (en) 2016-08-24

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