EP0098992A2 - Starter for an internal-combustion engine - Google Patents

Starter for an internal-combustion engine Download PDF

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Publication number
EP0098992A2
EP0098992A2 EP83105919A EP83105919A EP0098992A2 EP 0098992 A2 EP0098992 A2 EP 0098992A2 EP 83105919 A EP83105919 A EP 83105919A EP 83105919 A EP83105919 A EP 83105919A EP 0098992 A2 EP0098992 A2 EP 0098992A2
Authority
EP
European Patent Office
Prior art keywords
starting device
ring gear
damping means
gear
bearing
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
Application number
EP83105919A
Other languages
German (de)
French (fr)
Other versions
EP0098992A3 (en
EP0098992B1 (en
Inventor
Ludwig Bolz
Walter Rühle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
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Publication of EP0098992A2 publication Critical patent/EP0098992A2/en
Publication of EP0098992A3 publication Critical patent/EP0098992A3/en
Application granted granted Critical
Publication of EP0098992B1 publication Critical patent/EP0098992B1/en
Expired legal-status Critical Current

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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
    • F02N15/06—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/13—Machine starters
    • Y10T74/131—Automatic
    • Y10T74/132—Separate power mesher
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/13—Machine starters
    • Y10T74/131—Automatic
    • Y10T74/137—Reduction gearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19633—Yieldability in gear trains

Definitions

  • the invention is based on a starting device for internal combustion engines according to the preamble of the main claim.
  • a starter with countershaft is already known in which the ring gear of the countershaft is clamped together with the intermediate bearing and the cover plate between the end faces of the drive bearing and the housing of the starter motor.
  • compression and decompression shocks of the internal combustion engine to be broken can result in breaks in the parts transmitting the torque of the starting motor, that is, single-track gearboxes and countershaft, as well as in the drive bearing.
  • starters with countershaft this danger occurs even more than with ordinary starters, because the translation of the countershaft increases the impact forces by increasing the speed of the parts transmitting the torque from the starter motor to the ring gear.
  • the starter device according to the invention with the characterizing features of the main claim has the advantage that the peaks of the shock caused by the internal combustion engine are reduced by damping means, so that the risk of breakage at the parts transmitting the torque of the starter motor is reduced and by a smooth running of the armature Wear on the brushes is reduced. Another advantage is that the damping means act on one of the torque-transmitting parts, which can move in the manner required to damp the shock peaks without releasing the force, increasing the overall length of the starting device and means unsuitable for economical, large-scale production to need.
  • the arrangement of the damping means on the intermediate bearing and on the ring gear of the countershaft is particularly advantageous, so that the ring gear can move somewhat with respect to the intermediate bearing of the cover plate, the planet wheels and the drive shaft of the starter motor.
  • the cover plate is then advantageously provided with a guide for the planet gears in the axial direction.
  • FIG. 1 shows a starting device, partly in longitudinal section
  • FIG. 2 shows a section along the line II-II in FIG. 1.
  • a starter has a starter motor 1 with a housing 2, in which an excitation winding 3 is arranged.
  • a drive shaft 4 of the starter motor 1 carries an armature 5 and a commutator 6.
  • the drive shaft 4 is rotatably mounted with its end on the commutator side in a bearing cover 7 and with its other end in a bearing in a blind bore of a gear shaft 8.
  • the gear shaft 8 is supported at one end in a continuation of a drive bearing 9. Near its other end, the gear shaft 8 is rotatably received in an intermediate bearing 10.
  • the intermediate bearing 10 is inserted into an enlarged end section 11 of the drive bearing 9.
  • the bearing cover 7 and on the other hand the drive bearing 9 with the inserted intermediate bearing 10 are flanged and fastened to the housing 2 by tie rods 12.
  • an engagement relay 14 is fastened with screws 15 to the drive bearing 9 with the interposition of a sealing part 13.
  • the intermediate storage 10 is designed as an essentially cup-shaped molded part made of plastic, for example polyamide. It has a cylindrical edge 16 with three slots 17 offset by 120 degrees. A damping means in the form of an elastic cushion 18, for example made of rubber, is inserted in each slot 17.
  • the cushion 18 is provided with a rectangular opening 19, the extended central axis of which extends in a plane perpendicular to the longitudinal axis of the intermediate bearing 10 and intersects the longitudinal axis.
  • a ring gear 20 of a countershaft designed as a planetary gear is arranged in the intermediate bearing 10.
  • the ring gear 20 is also made as a molded part made of plastic, for example made of polyamide.
  • the ring gear 20 has on its outer shell three staggered at an angle of 120 degrees, extending radially to the central axis of the ring gear 20 pins 21.
  • the pins 21 protrude into the opening 19 of the associated cushion 18 used in the intermediate bearing 10.
  • the ring gear 20 is thus resiliently received in the intermediate storage 10 and movable within certain limits with respect to the intermediate storage 10.
  • the end of the gear shaft 8 projecting into the intermediate bearing 10 is designed as a flange 22 which serves as a planet gear carrier.
  • axes 23 protrude parallel to the longitudinal axis on the end face of the flange 22.
  • the planet gears 25 mesh with an internal toothing 26 of the ring gear 20.
  • the section adjoining the end of the drive shaft 4 rotatably mounted in the gear shaft 8 is designed as a pinion 27.
  • the pinion 27 is also in mesh with the planet gears 25.
  • the F-anete gear is closed on the motor side with a cover plate 28 made of sheet metal.
  • the outer edge of cover plate 28 is clamped between the end faces of intermediate bearing 10 and housing 2, covering slots 17 containing pillows 18 and abutting pillows 18.
  • the cover disk 28 With a sleeve-shaped extension 29, the cover disk 28 surrounds a section of the drive shaft 4 bordering the pinion 27 and projects into a sealing ring 31 of T-shaped cross section inserted in the winding head 30 of the armature 5, through which the drive shaft 4 extends.
  • An annular guide projection 32 is formed on the side of the cover disk 28 assigned to the planetary gear.
  • the planet gears 25 slide on it with their end face, in each case with the “point” of the end face near the tooth base, which is just the most distant from the longitudinal axis of the planetary gear and thus of the pinion 27.
  • the gear shaft 8 has a steep thread section 33 on which a driver 34 is seated.
  • the driver 34 is connected in one piece via a flange 35 to an outer race 36 of a freewheel 37.
  • An inner race 38 is designed as an extension of a starter pinion 39, which is arranged on the gear shaft 8 so as to be rotatable and displaceable.
  • the races 36 and 38 include spaces 40 in which rollers 41 and associated springs, not shown, are accommodated.
  • a cover plate 42 closes the rooms 40.
  • a holding disk 43 is located on its outer end face.
  • the freewheel parts 36, 38, 41, 42, 43 are held together by a housing part 44.
  • a stop ring 45 is arranged on the gear shaft 8 near the bearing extension of the drive bearing 9 that receives the end of the gear shaft 8. Between the starter pinion 39 and the stop ring 45, a ring gear 46 of an internal combustion engine to be rotated protrudes through a mouth-like opening 47 of the drive bearing 9 into the engagement region of the starter pinion 39.
  • a driver disk 50 is arranged to be axially and radially movable between the first stop part 49 and a second stop part 51.
  • the second stop part 51 lies against a stop ring 52 of the driver 34.
  • the driving plate 50 is articulated on a fork-shaped engagement lever 53.
  • the engagement lever 53 is pivotally mounted on a bearing part 54 which is inserted into recesses in the drive bearing 9.
  • the free end 55 of the engagement lever 53 projects into a slot 56 of a switching rod 57 of a magnet armature of the engagement relay 14, which armature is not shown.
  • a brake disc 58 with an abrasion-resistant coating is fastened to the end face of the intermediate bearing 10 facing the driver 34.
  • the brake disk 58, with the facing end face of the driver 34, acts as an outlet brake when the starter device is switched off after the internal combustion engine has been turned on.
  • the reduction gearbox translates the effect of the loads caused by the ignition shocks into larger forces and faster changes at higher speeds.
  • a resilient receptacle 18 for the ring gear 20 on the intermediate bearing 10 By installing a resilient receptacle 18 for the ring gear 20 on the intermediate bearing 10, a damping is connected in the line which forms the frictional connection between the starting motor 1 and the ring gear 46 of the internal combustion engine to be turned on.
  • the mechanical connection between drive shaft 4 and ring gear 46 is no longer completely rigid.
  • the cushion 18 used as a bearing for the ring gear 20 on the intermediate bearing 10 absorb the ignition shocks caused by the internal combustion engine to such an extent by corresponding deformation that the rigid parts of the single-track transmission and the planetary transmission are protected from damage.

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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)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Valve Device For Special Equipments (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

Es wird eine Andrehvorrichtung für Brennkraftmaschinen vorgeschlagen, bei der ein Vorgelege (27, 25, 20) zwischen eine Antriebswelle (4) eines Andrehmotors (1) und eine Getriebewelle (B) geschaltet ist, auf welcher ein Einspurgetriebe (34, 37) mit einem Andrehritzel (39) bewegbar angeordnet ist. Das Vorgelege (27, 25, 20) ist mit einer Dämpfung (18) versehen, die als federnde Aufnahme des Hohlrades (20) des Vorgeleges in einem Zwischenlager (10) eingesetzt ist. Durch eine gewisse Bewegbarkeit des Hohlrades (20) gegenüber den das Drehmoment des Antriebsmotors (1) auf den Zahnkranz (46) der anzudrehenden Brennkraftmaschine übertragenden Teile werden von der Brennkraftmaschine erzeugte Kompressions- und Dekompressionsstöße soweit gedämpft, daß sie keine Schäden an den beim Andrehen unter Kraftschluß stehenden Teilen (Einspurgetriebe und Vorgelege) zwischen Zahnkranz (46) und Antriebswelle (4) der Andrehvorrichtung verursachen können.A starting device for internal combustion engines is proposed, in which a countershaft (27, 25, 20) is connected between a drive shaft (4) of a starting motor (1) and a transmission shaft (B), on which a single-track gear (34, 37) with a Starting pinion (39) is arranged movably. The countershaft (27, 25, 20) is provided with a damping (18) which is used as a resilient receptacle of the ring gear (20) of the countershaft in an intermediate bearing (10). Due to a certain mobility of the ring gear (20) relative to the parts that transmit the torque of the drive motor (1) to the ring gear (46) of the internal combustion engine to be rotated, compression and decompression shocks generated by the internal combustion engine are damped to such an extent that they do not damage the torque when turning Non-positive parts (single-track gear and countershaft) between the ring gear (46) and drive shaft (4) of the starter can cause.

Description

Stand der TechnikState of the art

Die Erfindung geht von einer Andrehvorrichtung für Brennkraftmaschinen nach der Gattung des Hauptanspruchs aus. Es ist schon eine Andrehvorrichtung mit Vorgelege bekannt, bei der das Hohlrad des Vorgeleges zusammen mit dem Zwischenlager und der Abdeckscheibe zwischen den Stirnseiten des Antriebslagers und des Gehäuses des Andrehmotors festgeklemmt ist. Dabei ist jedoch von Nachteil, daß es durch Kompressions- und Dekompressionsstöße der anzudrehenden Brennkraftmaschine zu Brüchen in den das Drehmoment des Andrehmotors übertragenden Teilen, das sind Einspurgetriebe und Vorgelege, wie auch im Antriebslager, kommen kann. Bei Andrehvorrichtungen mit Vorgelege tritt diese Gefahr noch stärker auf als bei gewöhnlichen Andrehvorrichtungen, weil durch die Übersetzung des Vorgeleges die Stoßkräfte vergrößert werden durch Erhöhen der Geschwindigkeit der das Drehmoment vom Andrehmotor auf den Zahnkranz übertragenden Teile.The invention is based on a starting device for internal combustion engines according to the preamble of the main claim. A starter with countershaft is already known in which the ring gear of the countershaft is clamped together with the intermediate bearing and the cover plate between the end faces of the drive bearing and the housing of the starter motor. However, it is disadvantageous that compression and decompression shocks of the internal combustion engine to be broken can result in breaks in the parts transmitting the torque of the starting motor, that is, single-track gearboxes and countershaft, as well as in the drive bearing. In the case of starters with countershaft, this danger occurs even more than with ordinary starters, because the translation of the countershaft increases the impact forces by increasing the speed of the parts transmitting the torque from the starter motor to the ring gear.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Andrehvorrichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die Spitzen der von der anzudrehenden Brennkraftmaschine verursachten Stöße durch Dämpfungsmittel abgebaut werden, so daß die Bruchgefahr an den das Drehmoment des Andrehmotors übertragenden Teilen verringert und durch einen ruhigen Lauf des Ankers der Verschleiß der Bürsten herabgesetzt wird. Als weiterer Vorteil ist anzusehen, daß die Dämpfungsmittel an einem der das Drehmoment übertragenden Teile angreifen, welches sich in der zum Dämpfen der Stoßspitzen erforderlichen Weise bewegen kann, ohne den Kraftschluß zu lösen, die Baulänge der Andrehovrrichtung zu vergrößern und für eine wirtschaftliche Großmengenfertigung ungeeignete Mittel zu benötigen.The starter device according to the invention with the characterizing features of the main claim has the advantage that the peaks of the shock caused by the internal combustion engine are reduced by damping means, so that the risk of breakage at the parts transmitting the torque of the starter motor is reduced and by a smooth running of the armature Wear on the brushes is reduced. Another advantage is that the damping means act on one of the torque-transmitting parts, which can move in the manner required to damp the shock peaks without releasing the force, increasing the overall length of the starting device and means unsuitable for economical, large-scale production to need.

Durch die in den Unteransprüchen aufgeführten Merkmale sind vorteilhafte Weiterbildungen der im Hauptanspruch angegebenen Andrehvorrichtung möglich. Besonders vorteilhaft ist die Anordnung der Dämpfungsmittel am Zwischenlager und am Hohlrad des Vorgeleges, so daß-sich das Hohlrad gegenüber dem Zwischenlager der Abdeckscheibe, den Planetenrädern und der Antriebswelle des Andrehmotors etwas bewegen kann. Dazu ist dann noch die Abdeckscheibe in vorteilhafter Weise mit einer Führung für die Planetenräder in axialer Richtung versehen.Advantageous developments of the starting device specified in the main claim are possible due to the features listed in the subclaims. The arrangement of the damping means on the intermediate bearing and on the ring gear of the countershaft is particularly advantageous, so that the ring gear can move somewhat with respect to the intermediate bearing of the cover plate, the planet wheels and the drive shaft of the starter motor. In addition, the cover plate is then advantageously provided with a guide for the planet gears in the axial direction.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigen Figur 1 eine Andrehvorrichtung teilweise im Längsschnitt und Figur 2 einen Schnitt entlang der Linie II-II in Figur 1.An embodiment of the invention is shown in the drawing. FIG. 1 shows a starting device, partly in longitudinal section, and FIG. 2 shows a section along the line II-II in FIG. 1.

Beschreibung des AusführungsbeispielesDescription of the embodiment

Eine Andrehvorrichtung hat einen Andrehmotor 1 mit einem Gehäuse 2, in dem eine Erregerwicklung 3 angeordnet ist. Eine Antriebswelle 4 des Andrehmotors 1 trägt einen Anker 5 und einen Kommutator 6. Die Antriebswelle 4 ist mit ihrem kommutatorseitigen Ende in einem Lagerdeckel 7 und mit ihrem anderen Ende in einem Lager in einer Sackbohrung einer Getriebewelle 8 drehbar gelagert.A starter has a starter motor 1 with a housing 2, in which an excitation winding 3 is arranged. A drive shaft 4 of the starter motor 1 carries an armature 5 and a commutator 6. The drive shaft 4 is rotatably mounted with its end on the commutator side in a bearing cover 7 and with its other end in a bearing in a blind bore of a gear shaft 8.

Die Getriebwelle 8 ist mit einem Ende in einem'Fortsatz eines Antriebslagers 9 gelagert. Nahe ihrem anderen Ende ist die Getriebwelle 8 in einem Zwischenlager 10 drehbar aufgenommen. Das Zwischenlager 10 ist in einen erweiterten Endabschnitt 11 des Antriebslagers 9 eingesetzt. An den Stirnseiten des Gehäuses 2 sind einerseits der Lagerdeckel 7 und andererseits das Antriebslager 9 mit dem eingesetzten Zwischenlager 10 angeflanscht und durch Zuganker 12 am Gehäuse 2 befestigt. Parallel zum Gehäuse 2 ist am Antriebslager 9 unter Zwischenlage eines Dichtteils 13 ein Einrückrelais 14 mit Schrauben 15 befestigt.The gear shaft 8 is supported at one end in a continuation of a drive bearing 9. Near its other end, the gear shaft 8 is rotatably received in an intermediate bearing 10. The intermediate bearing 10 is inserted into an enlarged end section 11 of the drive bearing 9. On the end faces of the housing 2, on the one hand the bearing cover 7 and on the other hand the drive bearing 9 with the inserted intermediate bearing 10 are flanged and fastened to the housing 2 by tie rods 12. Parallel to the housing 2, an engagement relay 14 is fastened with screws 15 to the drive bearing 9 with the interposition of a sealing part 13.

Das Zwischenlager 10 ist als im wesentlichen napfförmiges Spritzteil aus Kunststoff, beispielsweise Polyamid ausgebildet. Es hat einen zylindrischen Rand 16 mit drei um 120 Grad versetzten Schlitzen 17. In jedem Schlitz 17 ist ein Dämpfungsmittel in Form eines elastischen Kissens 18, beispielsweise aus Gummi eingesetzt. Das Kissen 18 ist mit einer rechteckigen Öffnung 19 versehen, deren verlängerte Mittelachse in einer senkrechten Ebene zur Längsachse des Zwischenlagers 10 verläuft und die Längsachse schneidet.The intermediate storage 10 is designed as an essentially cup-shaped molded part made of plastic, for example polyamide. It has a cylindrical edge 16 with three slots 17 offset by 120 degrees. A damping means in the form of an elastic cushion 18, for example made of rubber, is inserted in each slot 17. The cushion 18 is provided with a rectangular opening 19, the extended central axis of which extends in a plane perpendicular to the longitudinal axis of the intermediate bearing 10 and intersects the longitudinal axis.

Im Zwischenlager 10 ist ein Hohlrad 20 eines als Planetengetriebe ausgebildeten Vorgeleges angeordnet. Das Hohlrad 20 ist ebenfalls als Spritzteil aus Kunststoff, beispielsweise aus Polyamid hergestellt. Das Hohlrad 20 hat an seinem Außenmantel drei im Winkel von 120 Grad zueinander versetzte,-sich radial zur Mittelachse des Hohlrades 20 erstreckende Zapfen 21. Die Zapfen 21 ragen in die Öffnung 19 der im Zwischenlager 10 eingesetzten zugeordneten Kissen 18. Das Hohlrad 20 ist somit federnd im Zwischenlager 10 aufgenommen und in gewissen Grenzen gegenüber dem Zwischenlager 10 bewegbar. Das in das Zwischenlager 10 ragende Ende der Getriebewelle 8 ist als Flansch 22 ausgebildet, der als Planetenradträger dient. Wiederum im Winkel von 120 Grad zueinander ragen parallel zur Längsachse drei Achsen 23 an der Stirnseite des Flansches 22 hervor. Auf jeder Achse 23 ist ein Wälzlager 24 angeordnet, auf dem ein Planetenrad 25 sitzt. Die Planetenräder 25 kämmen mit einer Innenverzahnung 26 des Hohlrades 20. Der an das in der Getriebewelle 8 drehbar gelagerte Ende der Antriebswelle 4 anschließende Abschnitt ist als Ritzel 27 ausgebildet. Das Ritzel 27 steht ebenfalls mit den Planetenrädern 25 in Zahneingriff.In the intermediate bearing 10, a ring gear 20 of a countershaft designed as a planetary gear is arranged. The ring gear 20 is also made as a molded part made of plastic, for example made of polyamide. The ring gear 20 has on its outer shell three staggered at an angle of 120 degrees, extending radially to the central axis of the ring gear 20 pins 21. The pins 21 protrude into the opening 19 of the associated cushion 18 used in the intermediate bearing 10. The ring gear 20 is thus resiliently received in the intermediate storage 10 and movable within certain limits with respect to the intermediate storage 10. The end of the gear shaft 8 projecting into the intermediate bearing 10 is designed as a flange 22 which serves as a planet gear carrier. Again at an angle of 120 degrees to one another, three axes 23 protrude parallel to the longitudinal axis on the end face of the flange 22. A roller bearing 24, on which a planet gear 25 is seated, is arranged on each axis 23. The planet gears 25 mesh with an internal toothing 26 of the ring gear 20. The section adjoining the end of the drive shaft 4 rotatably mounted in the gear shaft 8 is designed as a pinion 27. The pinion 27 is also in mesh with the planet gears 25.

Das F-anetengetriebe ist motorseitig mit einer Abdeckscheibe 28 aus Blech verschlossen. Die Abdeckscheibe 28 ist mit ihrem äußeren Rand zwischen die Stirnseiten von Zwischenlager 10 und Gehäuse 2 geklemmt, wobei sie die Kissen 18 enthaltenden Schlitze 17 abdeckt und an den Kissen 18 anliegt. Mit einem hülsenförmigen Ansatz 29 umgibt die Abdeckscheibe 28 einen an das Ritzel 27 grenzenden Abschnitt der Antriebswelle 4 und ragt in einen im Wickelkopf 30 des Ankers 5 eingesetzten Dichtring 31 T-förmigen Querschnitts, durch den sich die Antriebswelle 4 erstreckt.The F-anete gear is closed on the motor side with a cover plate 28 made of sheet metal. The outer edge of cover plate 28 is clamped between the end faces of intermediate bearing 10 and housing 2, covering slots 17 containing pillows 18 and abutting pillows 18. With a sleeve-shaped extension 29, the cover disk 28 surrounds a section of the drive shaft 4 bordering the pinion 27 and projects into a sealing ring 31 of T-shaped cross section inserted in the winding head 30 of the armature 5, through which the drive shaft 4 extends.

An der dem Planetengetriebe zugeordneten Seite der Abdeckscheibe 28 ist ein ringförmiger Führungsvorsprung 32 ausgebildet. An ihm gleiten die Planetenräder 25 mit ihrer Stirnseite, und zwar jeweils mit dem "Punkt" der Stirnseite nahe des Zahngrundes, welcher gerade am weitesten von der Längsachse des Planetengetriebes und somit des Ritzels 27 weggedreht ist.An annular guide projection 32 is formed on the side of the cover disk 28 assigned to the planetary gear. The planet gears 25 slide on it with their end face, in each case with the “point” of the end face near the tooth base, which is just the most distant from the longitudinal axis of the planetary gear and thus of the pinion 27.

Die Getriebewelle 8 hat einen Steilgewindeabschnitt 33, auf dem ein Mitnehmer 34 sitzt. Der Mitnehmer 34 ist einstückig über einen Flansch 35 mit einem äußeren Laufring 36 eines Freilaufs 37 verbunden. Ein innerer Laufring 38 ist als Ansatz eines Andrehritzels 39 ausgebildet, welches auf der Getriebewelle 8 dreh- und verschiebbar angeordnet ist. Die Laufringe 36 und 38 schließen Räume 40 ein, in denen Rollen 41 und nicht näher dargestellte zugehörige Federn untergebracht sind. Eine Deckscheibe 42 schließt die Räume 40 ab. An ihrer äußeren Stirnseite liegt eine Haltescheibe 43. Die Freilaufteile 36, 38, 41, 42, 43 sind durch ein Gehäuseteil 44 zusammengehalten.The gear shaft 8 has a steep thread section 33 on which a driver 34 is seated. The driver 34 is connected in one piece via a flange 35 to an outer race 36 of a freewheel 37. An inner race 38 is designed as an extension of a starter pinion 39, which is arranged on the gear shaft 8 so as to be rotatable and displaceable. The races 36 and 38 include spaces 40 in which rollers 41 and associated springs, not shown, are accommodated. A cover plate 42 closes the rooms 40. A holding disk 43 is located on its outer end face. The freewheel parts 36, 38, 41, 42, 43 are held together by a housing part 44.

Nahe dem das Ende der Getriebewelle 8 aufnehmenden Lagerfortsatz des Antriebslagers 9 ist auf der Getriebewelle 8 ein Anschlagring 45 angeordnet. Zwischen dem Andrehritzel 39 und dem Anschlagring 45 ragt ein Zahnkranz 46 einer anzudrehenden Brennkraftmaschine durch eine maulartige Öffnung 47 des Antriebslagers 9 in den Einspurbereich des Andrehritzels 39.A stop ring 45 is arranged on the gear shaft 8 near the bearing extension of the drive bearing 9 that receives the end of the gear shaft 8. Between the starter pinion 39 and the stop ring 45, a ring gear 46 of an internal combustion engine to be rotated protrudes through a mouth-like opening 47 of the drive bearing 9 into the engagement region of the starter pinion 39.

Auf dem Mitnehmer 34 sitzt eine Einspurfeder 48 zwischen dem Flansch 35 und einem ebenfalls auf dem Mitnehmer 34 lose angeordneten ersten Anschlagteil 49. Eine Mitnehmerscheibe 50 ist zwischen dem ersten Anschlagteil 49 und einem zweiten Anschlagteil 51 axial und radial bewegbar angeordnet. Das zweite Anschlagteil 51 liegt an einem Anschlagring 52 des Mitnehmers 34 an. Die Mitnehmerscheibe 50 ist an einem gabelförmigen Einrückhebel 53 angelenkt. Der Einrückhebel 53 ist an einem Lagerteil 54 schwenkbar gelagert, welches in Ausnehmungen des Antriebslagers 9 eingesetzt ist. Das freie Ende 55 des Einrückhebels 53 ragt in einen Schlitz 56 einer Schaltstange 57 eines nicht näher dargestellten Magnetankers des Einrückrelais 14.On the driver 34 there is an engagement spring 48 between the flange 35 and a first stop part 49 which is also loosely arranged on the driver 34. A driver disk 50 is arranged to be axially and radially movable between the first stop part 49 and a second stop part 51. The second stop part 51 lies against a stop ring 52 of the driver 34. The driving plate 50 is articulated on a fork-shaped engagement lever 53. The engagement lever 53 is pivotally mounted on a bearing part 54 which is inserted into recesses in the drive bearing 9. The free end 55 of the engagement lever 53 projects into a slot 56 of a switching rod 57 of a magnet armature of the engagement relay 14, which armature is not shown.

An der dem Mitnehmer 34 zugewandten Stirnseite des Zwischenlagers 10 ist eine Bremsscheibe 58 mit einem abriebfesten Belag befestigt. Die Bremsscheibe 58 wirkt mit der zugewandten Stirnseite des Mitnehmers 34 als Auslaufbremse beim Abschalten der Andrehvorrichtung nach erfolgtem Andrehen der Brennkraftmaschine.A brake disc 58 with an abrasion-resistant coating is fastened to the end face of the intermediate bearing 10 facing the driver 34. The brake disk 58, with the facing end face of the driver 34, acts as an outlet brake when the starter device is switched off after the internal combustion engine has been turned on.

Beim Andrehen der Brennkraftmaschine kommt es zu Zündstößen, welche über den Zahnkranz 46 auf die das Drehmoment des Andrehmotors 1 übertragenden Teile wirken, das sind das Einspurgetriebe bestehend aus Andrehritzel 39, Freilauf 37, Mitnehmer 34 mit Getriebewelle 8 mit Steilgewindeabschnitt 33 sowie das Planetengetriebe mit den an der Getriebewelle 8 drehbar befestigten Planetenrädern 25, welche mit dem Hohlrad 25 und dem Ritzel 27 der Antriebswelle 4 des Andrehmotors 1 in Zahneingriff stehen. Dabei kann es zu Brüchen an diesen Teilen kommen vor allem bei Andrehvorrichtungen mit Vorgelege.When the internal combustion engine is turned on, there are ignition shocks, which act via the ring gear 46 on the parts transmitting the torque of the starting motor 1, that is the single-track gear consisting of starter pinion 39, freewheel 37, driver 34 with gear shaft 8 with steep thread section 33 and the planetary gear with on the gear shaft 8 rotatably attached planet gears 25, which are in mesh with the ring gear 25 and the pinion 27 of the drive shaft 4 of the starter motor 1. This can lead to breaks in these parts, especially in the case of starting devices with countershaft.

Denn durch das Vorgelege wird die Wirkung der durch die Zündstöße hervorgerufenen Belastungen in größere Kräfte und schnellere Wechsel größerer Geschwindigkeiten übersetzt. Durch den Einbau einer federnden Aufnahme 18 für das Hohlrad 20 am Zwischenlager 10 ist in dem den Kraftschluß zwischen Andrehmotor 1 und Zahnkranz 46 der anzudrehenden Brennkraftmaschine bildenden Strang aus Einspurgetriebe und Planetengetriebe eine Dämpfung geschaltet. Die mechanische Verbindung zwischen Antriebswelle 4 und Zahnkranz 46 ist nicht mehr völlig starr. Die als Lagerung für das Hohlrad 20 am Zwischenlager 10 eingesetzten Kissen 18 fangen die von der Brennkraftmaschine verursachten Zündstöße soweit durch entsprechendes Verformen auf, daß die an sich starren Teile des Einspurgetriebes und des Planetengetriebes vor Schäden bewahrt werden.Because the reduction gearbox translates the effect of the loads caused by the ignition shocks into larger forces and faster changes at higher speeds. By installing a resilient receptacle 18 for the ring gear 20 on the intermediate bearing 10, a damping is connected in the line which forms the frictional connection between the starting motor 1 and the ring gear 46 of the internal combustion engine to be turned on. The mechanical connection between drive shaft 4 and ring gear 46 is no longer completely rigid. The cushion 18 used as a bearing for the ring gear 20 on the intermediate bearing 10 absorb the ignition shocks caused by the internal combustion engine to such an extent by corresponding deformation that the rigid parts of the single-track transmission and the planetary transmission are protected from damage.

Claims (9)

1. Andrehvorrichtung für Brennkraftmaschinen mit einem Andrehmotor, dessen Antriebswelle über ein Vorgelege mit einer Getriebewelle in Wirkverbindung steht, die Teil eines in einem Antriebslager untergebrachten Einspurgetriebes mit Mitnehmer, Freilauf und Andrehritzel ist und in einem das Vorgelege getriebeseitig abschließenden Zwischenlager drehbar aufgenommen ist sowie einer das Vorgelege motorseitig abschließenden Abdeckscheibe, dadurch gekennzeichnet, daß Dämpfungsmittel (18) vorgesehen sind, in welchen das Hohlrad (20) des Vorgeleges (20, 25, 27) federnd aufgenommen ist.1. Starting device for internal combustion engines with a starting motor, the drive shaft of which is operatively connected via a countershaft to a gear shaft, which is part of a single-track gearbox accommodated in a drive bearing with driver, freewheel and starter pinion and is rotatably received in an intermediate bearing that closes the countershaft on the transmission side and one that Gear unit covering cover disc on the motor side, characterized in that damping means (18) are provided, in which the ring gear (20) of the gear train (20, 25, 27) is resiliently received. 2. Andrehvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dämpfungsmittel (18) zwischen Zwischenlager (10) und Abdeckscheibe (28) angeordnet sind.2. Starting device according to claim 1, characterized in that the damping means (18) between the intermediate bearing (10) and cover plate (28) are arranged. 3. Andrehvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Dämpfungsmittel (18) im Zwischenlager (10) untergebracht sind.3. Starting device according to claim 1 or 2, characterized in that the damping means (18) are accommodated in the intermediate storage (10). 4. Andrehvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Hohlrad (20) mit Aufnahmen (21) für die im Zwischenlager (10) untergebrachten Dämpfungsmittel (18) versehen ist.4. Starting device according to one of claims 1 to 3, characterized in that the ring gear (20) is provided with receptacles (21) for the damping means (18) accommodated in the intermediate bearing (10). 5. Andrehvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Dämpfungsmittel als elastische Kissen (18) ausgebildet sind.5. Starting device according to one of claims 1 to 4, characterized in that the damping means are designed as elastic cushions (18). 6. Andrehvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Dämpfungsmittel (18) in Ausnehmungen (17) des Zwischenlagers (10) eingesetzt sind und eine radiale Öffnung (19) haben, in welche je eine Aufnahme (21) des Hohlrades (20) ragt.6. Starting device according to one of claims 1 to 5, characterized in that the damping means (18) in recesses (17) of the intermediate bearing (10) are inserted and have a radial opening (19), in each of which a receptacle (21) of the Ring gear (20) protrudes. 7. Andrehvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Dämpfungsmittel (18) aus Gummi bestehen und an Zwischenlager (10) und Hohlrad (20) angeordnet sind.7. Starting device according to one of claims 1 to 6, characterized in that the damping means (18) consist of rubber and are arranged on the intermediate bearing (10) and ring gear (20). 8. Andrehvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß Zwischenlager (10) und Abdeckscheibe (28) zwischen Antriebslager (9) und Gehäuse (2) des Andrehmotors (1) fest angeordnet sind.8. Starting device according to one of claims 1 to 7, characterized in that the intermediate bearing (10) and cover plate (28) between the drive bearing (9) and housing (2) of the starting motor (1) are fixedly arranged. 9. Andrehvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Abdeckscheibe (28) mit einer Führung (32) versehen ist, welche an der zugewandten Stirnseite der Planetenräder (25) anliegt und einen Radius hat, der annähernd der größten Entfernung des Zahngrundes der Planetenräder (25) von der Längsachse der Antriebswelle (4) der Andrehvorrichtung ist.9. Starting device according to one of claims 1 to 8, characterized in that the cover plate (28) is provided with a guide (32) which bears on the facing end face of the planet gears (25) and has a radius which is approximately the greatest distance the tooth base of the planet gears (25) from the longitudinal axis of the drive shaft (4) of the starter.
EP83105919A 1982-07-10 1983-06-16 Starter for an internal-combustion engine Expired EP0098992B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823225957 DE3225957A1 (en) 1982-07-10 1982-07-10 TURNING DEVICE FOR INTERNAL COMBUSTION ENGINES
DE3225957 1982-07-10

Publications (3)

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EP0098992A2 true EP0098992A2 (en) 1984-01-25
EP0098992A3 EP0098992A3 (en) 1984-05-30
EP0098992B1 EP0098992B1 (en) 1986-09-24

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EP83105919A Expired EP0098992B1 (en) 1982-07-10 1983-06-16 Starter for an internal-combustion engine

Country Status (4)

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US (1) US4561316A (en)
EP (1) EP0098992B1 (en)
JP (1) JPS5923065A (en)
DE (2) DE3225957A1 (en)

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EP0127880A1 (en) * 1983-05-31 1984-12-12 Hitachi, Ltd. Reduction starter
EP0180846A1 (en) * 1984-10-24 1986-05-14 Hitachi, Ltd. Planetary gear type reduction starter
EP0177259B1 (en) * 1984-09-25 1989-04-26 Mitsubishi Denki Kabushiki Kaisha Engine starter with a planetary reduction gear
US4922149A (en) * 1987-12-18 1990-05-01 Mitsubishi Denki Kabushiki Kaisha Electric motor device
GB2274684A (en) * 1993-02-02 1994-08-03 Bosch Gmbh Robert Shock-absorbing i.c. engine starter motor drive train
FR2725758A1 (en) * 1994-10-18 1996-04-19 Valeo Equip Electr Moteur ELECTRIC STARTER FOR A MOTOR VEHICLE COMBUSTION ENGINE
WO2012076548A3 (en) * 2010-12-09 2012-12-20 Robert Bosch Gmbh Starter device

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FR2631094B1 (en) * 1988-05-04 1992-12-11 Equip Electr Moteur TORQUE LIMITER SPEED REDUCER, PARTICULARLY FOR STARTER OF INTERNAL COMBUSTION ENGINE
DE4006795A1 (en) * 1990-03-03 1991-09-05 Bosch Gmbh Robert TURNING DEVICE IN A COMPACT DESIGN
US5167162A (en) * 1990-05-22 1992-12-01 Mitsuba Electric Manufacturing Co., Ltd. Starter system for an internal combustion engine
JP2515602Y2 (en) * 1991-04-15 1996-10-30 三菱電機株式会社 Planetary gear reduction starter device
JP3182472B2 (en) * 1993-06-10 2001-07-03 本田技研工業株式会社 Power steering device
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FR2751033B1 (en) * 1996-07-10 1998-09-18 Valeo Equip Electr Moteur STARTER FOR A MOTOR VEHICLE COMPRISING IMPROVED COUPLING MEANS BETWEEN THE DRAWBAR OF THE CONTACTOR AND THE CONTROL FORK OF THE STARTER
WO2000014403A1 (en) * 1998-09-04 2000-03-16 Hoyt Steven W Starter mechanism
FR2800805B1 (en) * 1999-11-04 2001-11-30 Valeo Equip Electr Moteur STARTER EQUIPPED WITH A LAUNCHER
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US6986332B2 (en) * 2003-06-05 2006-01-17 Honda Motor Co., Ltd. Electric starter apparatus and method with multi-stage gearing for starting an internal combustion engine
US7360464B2 (en) * 2003-12-15 2008-04-22 Automotive Components Holdings, Llc Variable rate impact and oscillation absorber in starter motors
JP4412646B2 (en) * 2004-02-27 2010-02-10 本田技研工業株式会社 Engine start control device
JP4544238B2 (en) * 2006-11-01 2010-09-15 株式会社デンソー Starter
US20080184845A1 (en) * 2007-02-01 2008-08-07 Farrar Peter K Planetary starter apparatus and assembly method thereof
FR2931319B1 (en) * 2008-05-14 2010-05-14 Valeo Equip Electr Moteur ROTATING ELECTRIC MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE
US20090320644A1 (en) * 2008-06-30 2009-12-31 Remy International, Inc. Torque Limiter for Engine Starter
US20120125149A1 (en) * 2010-11-19 2012-05-24 Remy Technologies, L.L.C. Motor starter including an armature having an integral drive system
US8636619B2 (en) * 2010-11-19 2014-01-28 Remy Technologies, L.L.C. Gear shock control member for a drive train component gear set
DE102011080583A1 (en) * 2011-08-08 2013-02-14 Robert Bosch Gmbh Starter for internal combustion engine, is provided with electric drive motor, which drives drive shaft, where lock washer is held positively on shaft of starter
CN103485956B (en) * 2012-06-12 2016-02-10 罗伯特·博世有限公司 For the starting arrangement of internal-combustion engine
DE102013211763A1 (en) 2012-06-21 2013-12-24 Robert Bosch Gmbh Starting device for starting internal combustion engines
DE102013207875B4 (en) * 2013-04-30 2021-03-18 Seg Automotive Germany Gmbh Starting device for an internal combustion engine
CN103618405A (en) * 2013-12-04 2014-03-05 重庆博耐特实业（集团）有限公司 Shock-resistant cranking motor for automobile
DE102014209315B4 (en) * 2014-05-16 2016-09-01 Robert Bosch Gmbh Starting device for an internal combustion engine
DE102014217349A1 (en) 2014-08-29 2016-03-03 Robert Bosch Gmbh Electric machine with a designed as a drive bearing housing and stored therein ring gear
DE102014217350B4 (en) 2014-08-29 2022-03-24 Seg Automotive Germany Gmbh Electrical machine with a housing designed as a drive bearing and a ring gear mounted therein
JP6407398B1 (en) 2017-12-18 2018-10-17 三菱電機株式会社 Starter for internal combustion engine

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EP0127880A1 (en) * 1983-05-31 1984-12-12 Hitachi, Ltd. Reduction starter
EP0177259B1 (en) * 1984-09-25 1989-04-26 Mitsubishi Denki Kabushiki Kaisha Engine starter with a planetary reduction gear
EP0180846A1 (en) * 1984-10-24 1986-05-14 Hitachi, Ltd. Planetary gear type reduction starter
US4776224A (en) * 1984-10-24 1988-10-11 Hitachi, Ltd. Planetary gear type reduction starter
US4922149A (en) * 1987-12-18 1990-05-01 Mitsubishi Denki Kabushiki Kaisha Electric motor device
GB2274684A (en) * 1993-02-02 1994-08-03 Bosch Gmbh Robert Shock-absorbing i.c. engine starter motor drive train
GB2274684B (en) * 1993-02-02 1996-01-17 Bosch Gmbh Robert Starter for internal combustion engines
FR2725758A1 (en) * 1994-10-18 1996-04-19 Valeo Equip Electr Moteur ELECTRIC STARTER FOR A MOTOR VEHICLE COMBUSTION ENGINE
EP0708239A1 (en) * 1994-10-18 1996-04-24 Valeo Equipements Electriques Moteur Electrical starter motor for a motor vehicle internal combustion engine
US5718147A (en) * 1994-10-18 1998-02-17 Valeo Equipements Electriques Moteur Electric starter for a motor vehicle combustion engine
CN1073210C (en) * 1994-10-18 2001-10-17 瓦莱奥电机设备公司 Electric starter for combustion engine of automobile
WO2012076548A3 (en) * 2010-12-09 2012-12-20 Robert Bosch Gmbh Starter device

Also Published As

Publication number Publication date
EP0098992A3 (en) 1984-05-30
DE3225957A1 (en) 1984-01-12
JPS5923065A (en) 1984-02-06
US4561316A (en) 1985-12-31
JPH0440549B2 (en) 1992-07-03
EP0098992B1 (en) 1986-09-24
DE3366433D1 (en) 1986-10-30

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