EP2713041B1 - Starter mechanism and method of assembling and/or producing a starter mechanism - Google Patents
Starter mechanism and method of assembling and/or producing a starter mechanism Download PDFInfo
- Publication number
- EP2713041B1 EP2713041B1 EP13183279.2A EP13183279A EP2713041B1 EP 2713041 B1 EP2713041 B1 EP 2713041B1 EP 13183279 A EP13183279 A EP 13183279A EP 2713041 B1 EP2713041 B1 EP 2713041B1
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- Prior art keywords
- recess
- guide
- disc
- geometry
- axially
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- 239000007858 starting material Substances 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 230000009467 reduction Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- 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
- F02N15/006—Assembling or mounting of starting devices
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- 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
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
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- 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
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- 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
- F02N15/067—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 the starter comprising an electro-magnetically actuated lever
Definitions
- the invention relates to a starting device, in particular a starter, for starting an internal combustion engine, according to the preamble of claim 1.
- the invention relates to a method for assembling and / or producing a starter device, in particular a starter, for starting an internal combustion engine, according to the preamble of claim 8.
- the invention relates to a starting device for internal combustion engines according to the preamble of the independent claims.
- the present invention starters and starters for vehicles with internal combustion engines having an electric machine with an output shaft connected to a freewheel gear.
- starters with a starter relay for vehicles with internal combustion engines which generally comprise a DC electric motor for driving the internal combustion engine.
- Such DC electric motors have a starter rotor which acts on an output shaft.
- Known starting devices comprise a freewheel gear with an axially playfully mounted, rotatable pinion.
- An axial movement of the pinion is limited on both sides by rigid stops.
- the axial movement is limited by a stop disc acting as a stop or general Axialbegrenzung.
- a distance between the retaining disk and the driver can be defined inter alia by the thickness of a guide disk or general guide unit arranged therebetween.
- the roller collar is arranged between the stops on the driver base and on the retaining disk or limited in the axial direction.
- the limitation of the pinion or the roller collar in the axial direction is designed as a clearance fit.
- An axial clearance then results from the sum of the axial dimensions of the driver, the retaining washer, the guide plate and the roller collar.
- the axial clearance is between 0.1 mm and 1 mm, depending on the tolerance position and design.
- a freewheel in particular for starting devices of internal combustion engines, known, with an outer race, the one piece over a flange is connected to a sleeve, with an inner race, which is formed as a flange of a Andrehritzels, with rolling elements and springs and enclosed by a cover disc spaces between the races and with these freewheeling parts together holding closure part, wherein the closure part in the axial section L- shaped and its inner circumferential surface is pressed into annular recesses on the outer side of the outer race.
- JP H 02 115571 A From the JP H 02 115571 A is a starting device is known in which a retaining disk and additionally attached thereto disc can be used.
- the inner disk used as a holding disk is sunk in an outer part.
- a starting device in which a holding disk and a guide disk are used. Both discs are sunk in the outer part.
- the starting device according to the invention and the inventive method for mounting a starter with the features of the corresponding main claim or independent claim have the advantage over the prior art that in a starter, in particular a starter, for cranking an internal combustion engine, at least comprising a freewheel gear in which a guide unit is arranged axially between a front geometry of an axial limitation and a front geometry of the axial limitation facing end geometry, it is provided that the guide unit is at least partially sunk in at least one sinking in at least one of the end geometries, whereby their share of the tolerance chain is reduced.
- the starting device comprises a freewheel gear, in which a closure cap frontally and circumferentially on an outer part rests.
- the closure cap is circumferentially reducible or reduced on a circumference of the outer part to the outer part.
- the freewheel transmission comprises in one embodiment as an inner part of an inner ring and an outer ring as an outer part.
- a toothing is formed on the inner ring, so that the inner ring acts as a pinion.
- the toothing is designed in several parts.
- the toothing is formed integrally with the inner ring.
- the outer ring is preferably designed as a driver, which cooperates with the inner ring.
- the outer ring surrounds a portion of the inner ring. This section protrudes from a driver base and forms a frontal geometry of the front.
- the one from the outer ring surrounding portion of the inner ring is formed as a roll collar.
- rollers balls, tons or other rolling elements are arranged to cooperate with the outer ring, so that a relative movement in the circumferential direction from outer ring to inner ring is possible.
- the rollers are thus arranged in the radial direction between the corresponding sections of the inner ring (roller collar) and the outer ring.
- the freewheel transmission thus comprises in one embodiment, the pinion, the roller collar (inner ring), the driver (outer ring) and a retaining disc acting as an axial limit.
- a guide disc is arranged between the retaining plate and the driver.
- the guide disk is arranged between the front geometries, that this is not pressed against the retaining disk, but instead has a game.
- a cap fixes the retaining washer and the driver and possibly the guide disc.
- the roller collar is mounted rotatably and with play axially between the retaining plate and the driver.
- the axial clearance of the pinion results from a sum of the dimensions or tolerances of the guide plate and the driver minus the dimensions or tolerances of the roller collar, each in the axial direction.
- the axial movement or the axial play of the pinion which is determined by the play of the roller collar forming portion of the pinion between the driver base and the retaining disc, is axially limited by at least one stop.
- the guide unit or the guide plate is arranged countersunk in the face geometry or the face geometries. In this way, the cap does not contact the guide disc.
- the holding plate contacts the front geometry of the outer part or directly adjoins it.
- a bottom portion of the cap is designed by its shape as a kind of plate spring and is resiliently against the underlying holding disc.
- the sinking is realized by means of sinking means selected from the group of sinking means comprising recesses, projections, projections, ribs, grooves, slots, shoulders, internal recesses, external recesses and the like.
- the sinking can be formed in any way, for example by molding projections or forming recesses.
- a recess is formed by the face geometry in the direction opposite to the opposite face geometry.
- an inner paragraph is executed with respect to a front portion of the front geometry.
- the flanks from the foremost region of the front geometry to a bottom of the sinking can be formed as steep as desired.
- the paragraph is angled, in particular formed at right angles.
- the flanks are formed obliquely, so that at least at the edge of a tapered sinking is formed.
- the shape of the recess is preferably formed on the shape of the guide unit.
- the sinking means are executed.
- a complementary embodiment of sinking and guide unit is provided, with corresponding sinking means are provided.
- the sinking means surround the guide unit.
- the sinking means penetrate the guide unit, for example in the form of pin-like projections. Accordingly, in one embodiment, the guide unit on passage openings.
- the countersinking means are formed as axially introduced inner recess, in which the guide unit is arranged radially limited by the front geometry at least partially sunk axially.
- the inner recess is formed in one embodiment in the front geometry of the outer part.
- the front geometry of the axial boundary is formed.
- the countersink is formed in both end geometries, preferably in equal parts in both end geometries.
- a different proportion distribution is provided.
- the depth of the sinking or the sum of the depths of the sinkers is preferably greater than or equal to the depth of the guide unit, so that they are completely in the Sinking is included. The depth is a dimension in the axial direction in an assembled state of the starter.
- the guide unit is arranged completely in the recess, at least in the axial direction, so that the end geometries are axially adjacent to one another on the end face.
- the sinking can be designed so that the guide unit is arranged with play in the sinking.
- the game is preferably formed in the radial and / or axial direction.
- a further embodiment provides that the guide unit is arranged with play in the sinking.
- the countersink is formed as an axial recess in the end geometry of the outer part, so that the guide unit is completely and / or taken up with play within an outer edge of the front geometry of the recess.
- the depth of the recess is constant in one embodiment in the radial direction. In another embodiment, the depth of the recess varies in the radial direction. In yet another embodiment, the depth varies in the circumferential direction. Preferably, the depth is constant in the circumferential direction.
- a preferred embodiment provides that a closure cap for axially and / or radially enclosing the axial boundary, the guide unit and / or the outer part is provided.
- the closure cap is circumferentially reduced to the outer part or the radially outer surface or the radially outer edge of the Axialbegrenzung, in particular reduced in the radial direction.
- the closure cap has a radially inwardly directed bottom. With this, the cap adjacent to an axially opposite to the guide unit facing end side of the Axialbegrenzung, so that the Axialbegrenzung is fixed in the radial direction.
- an outer dimension of the guide unit is smaller than an outer dimension of the outer part and / or the axial limitation, so that the closure cap is arranged contactlessly relative to the guide unit. In this way it is prevented that the guide unit when reducing to the cap adjacent and, if necessary, a power transmission to the guide unit takes place. Since the guide unit is formed of a softer or more easily deformable material than the axial boundary and / or the outer part, the guide unit is easier to deform, which should be prevented. Because with a radially outer force on the guide unit would be a contact of the guide unit at a radially inner part take place, which in turn would increase an axial play. Alone by avoiding the Aufstellf Anlagens an axial play is effectively reduced.
- the inventive method with the features of the corresponding main claim or independent claim has the advantage over the prior art that in a method for assembling and / or producing a starter, in particular a starter, for cranking an internal combustion engine, at least comprising a freewheel gear, in which a guide unit is arranged axially between a front geometry of an axial limitation and a front geometry of the axial limitation pointing front geometry of an outer part, is provided that a sinking is provided on at least one of the end geometries and the guide unit is at least partially sunk in the sinking.
- the sinking is introduced, for example, later machined in the face geometry.
- the face geometry is formed by material application.
- a radially outer, at least partially circumferential edge is performed.
- the sinking or the countersinks are in total formed with a greater depth, that is in the axial direction, than the depth of the guide unit, so that the guide unit can be arranged completely retractable.
- a cap is placed on the front side and circumferentially on an outer part.
- the cap is circumferentially reduced on a circumference of the outer part and the Axialbegrenzung on the outer part.
- a resulting force is introduced by sinking not on the management unit.
- the reduction of the cap on the outer part by means of a Reduzierrings.
- the Reduzierring has an internal dimension which is greater than the outer dimension of the cap. If the reducing ring is now moved axially over the closing cap, the reduction process starts, in which the closing cap is reduced in the outer dimension.
- the cap deforms accordingly and begins to move in grooves and / or along the surface of the driver. By this flow of the cap, a permanent connection with the driver is reduced.
- FIG. 1 shows in a cross-sectional view of a starter 100 with relay 42, also designed as a switching or engagement relay.
- a housing 10 of the starter 100 includes a cylindrical housing part 11 and a cover 13 which are interconnected by screws, not shown.
- the cylindrical housing part 11 is closed at the rear by the cover 13, in the middle part of an outwardly directed, hub is formed.
- a bearing In the hub is a bearing, in which a rear end 17a of the armature shaft 17 of an electric Antaxmotors 18 is mounted, whose armature is designated 19. Radially outside the armature 19 are on the wall of the housing part 11 more (permanent) magnets 20 of the starter motor 18.
- the front end of the armature shaft 17 is provided with a reduced diameter end portion 22 in a coaxially extending, not shown blind bore 23 of an output shaft 24 stored.
- the other end of the output shaft 24 is mounted in a housing part 11 closing bearing plate 25 and an integrally formed on the bearing plate 25 hub 26.
- a planet carrier 12 drives the output shaft 24, on which a freewheel gear 33 is arranged, whose inner ring, also called roller collar 34, a pinion-like projection 35 (pinion), on which an external toothing 36 is formed.
- the outer ring of the freewheel gear 33 also called driver 37, is connected via a coarse thread 38 to the output shaft 24.
- Einspurfeder 39 a By axially shifting the freewheel gear 33, the external teeth 36 can be brought into engagement with a ring gear 40 of an internal combustion engine for the purpose of starting.
- a brush plate 53 On the cover 13 is a brush plate 53, which is bolted to the lid 13.
- the brush plate 53 is integrally formed.
- At her particular brush holder made of plastic are attached, in which coals are arranged, which bear under spring pressure to a commutator 63, which is arranged on the armature shaft 17.
- the coals are connected via connecting leads to a cable lug which is connected to a contact 68 of the engagement relay 42.
- the strands penetrate a seal 70, which is arranged in the housing part 11 in an opening.
- the brush plate 53 is fastened with screws 62 on the cover 13.
- FIG. 2 schematically shows in a cross-sectional view of a section of the freewheel gear 33 of the starter 100 after FIG. 1 with a closure cap 110 and the outer part 137 of the driver 37, which is designed as an outer ring 137a.
- the outer part 137 adjoins radially outward axially on a driver bottom 37a of the driver 37.
- a state with radially reduced closure cap 110 is shown.
- the closure cap 110 rests against the outer part 137 or the driver 37 at the front side and peripherally, the closure cap 110 being circumferentially provided on the circumference of the outer part 137 on the outer part 137 Outer part 137 is reduced.
- the closure cap 110 is rotationally symmetrical to the illustrated longitudinal axis A.
- the pot-shaped closure cap 110 has a bottom region 111 and an adjoining wall region 112.
- the bottom portion 111 and the wall portion 112 include an angle, which is approximately rectangular here.
- the bottom region 111 and the wall region 112 have approximately the same wall thickness.
- a guide unit 125 designed as a guide disk 125a adjoins the holding disk 120 in the axial direction A towards the driver 37.
- the guide disk 125a lies flat on one side on the retaining disk 120.
- the recess 210 is formed as an inner recess 210a.
- the countersink 210 is adapted with an inner contour to the outer contour of the guide plate 125.
- the contours are formed complementary to each other.
- the sinker 210 is formed so that the guide pulley 125a is disposed with clearance in both the axial direction and the radial direction in the sink.
- the sinker 210 has a depth in the axial direction A which is greater than a depth or thickness of the guide disk 125a in the same, axial direction A.
- the holding disk 120 arranged adjacent to the guide disk 125a has no countersink 210 in the illustrated embodiment , Accordingly, the retaining disk 120 with its front geometry 121 bears against an edge of the front geometry 200 of the driver 37, which thus serves as a stop for the retaining disk 120.
- the guide disk 125a is sandwiched between the holding disk 120 and its front geometry 121 and the front geometry 200 of the driver 37, wherein due to the axial play present there is no frictional contacting in the axial direction.
- the outer dimension of the guide 125 formed as a guide plate 125a is smaller than an outer dimension of the outer part 137 and the retaining plate 120.
- the guide plate 125a is smaller than the adjacent components and correspondingly has a smaller diameter.
- the size of the radial or outer dimension determines the radial extent of the protruding edge edge geometry 200.
- the transition from the edge to the countersink is formed by flanks.
- the flanks are more or less steep depending on the requirement.
- the flanks are perpendicular to a surface the sinking 210 and the front geometry 200 arranged so that a rectangular shoulder is formed by the sinking 210.
- the guide pulley 125a has a complex geometry with projections for holding a compression spring (both not shown) for spring loading of the adjacent free wheel rollers 220, so that the free rollers 220 are held in position.
- the guide plate 125 is made of plastic, more precisely as a plastic injection molded part.
- the adjacent components are formed of a hardened material, for example steel or the like. Accordingly, the retaining disk 120 no longer strikes the soft guide disk 125a due to the countersink 210 or the sunken arrangement of the guide disk 125a, but also the harder face geometry 200.
- the closure cap 110 also adjoins the guide unit 125 and its recessed arrangement due to the smaller radial dimensions no longer on the guide unit 125 and thus transfers no more forces on this, so that a Aufstell bin deleted.
- the retaining disk 120 loosely abuts against the inner surface of the closure cap 110 and the guide disk 125a loosely engages the front geometry 200 or the edge formed there, so that there is a clearance fit in each case.
- the outer part 137 On its outer surface, the outer part 137 has grooves 217 or recesses into which the cap 110 can partially flow when reducing. The reduction process will be described in more detail below.
- the cap 110 Before reducing, the cap 110 is placed on the retaining disc 120 and the driver 37.
- the closure cap 110 bears axially and radially against the holding disk 120. From the axial direction A, a reduction ring or a reduction tool is moved over the closure cap 110.
- the inner dimension of the Reduzierrings is smaller than the outer dimension of the outer part 137. Thus, the Reduzierring presses on an axial movement, the closure cap 110 and against the outer part 137 and the retaining plate 120th
Description
Die Erfindung betrifft eine Andrehvorrichtung, insbesondere einen Starter, zum Andrehen einer Brennkraftmaschine, nach dem Oberbegriff des Anspruchs 1.The invention relates to a starting device, in particular a starter, for starting an internal combustion engine, according to the preamble of claim 1.
Weiter betrifft die Erfindung ein Verfahren zur Montage und/oder Herstellung einer Andrehvorrichtung, insbesondere eines Starters, zum Andrehen einer Brennkraftmaschine, nach dem Oberbegriff des Anspruchs 8.Furthermore, the invention relates to a method for assembling and / or producing a starter device, in particular a starter, for starting an internal combustion engine, according to the preamble of claim 8.
Die Erfindung geht aus von einer Andrehvorrichtung für Brennkraftmaschinen nach Gattung der unabhängigen Ansprüche.The invention relates to a starting device for internal combustion engines according to the preamble of the independent claims.
Gegenstand der vorliegenden Erfindung sind Starter und Anlasser für Fahrzeuge mit Verbrennungsmotoren, die eine elektrische Maschine mit einer mit einem Freilaufgetriebe verbundenen Abtriebswelle aufweisen.The present invention starters and starters for vehicles with internal combustion engines having an electric machine with an output shaft connected to a freewheel gear.
Aus dem Stand der Technik sind Anlasser mit einem Anlasserrelais für Fahrzeuge mit Verbrennungsmotoren bekannt, die in der Regel einen Gleichstromelektromotor zum Antreiben des Verbrennungsmotors umfassen. Derartige Gleichstromelektromotoren weisen einen Starterrotor auf, der auf eine Abtriebswelle wirkt.From the prior art, starters with a starter relay for vehicles with internal combustion engines are known, which generally comprise a DC electric motor for driving the internal combustion engine. Such DC electric motors have a starter rotor which acts on an output shaft.
Bekannte Andrehvorrichtungen umfassen ein Freilaufgetriebe mit einem axial spielbehaftet gelagerten, drehbaren Ritzel. Eine axiale Bewegung des Ritzels wird beidseitig von starren Anschlägen begrenzt. Einerseits wird die Axialbewegung des Ritzels im Bereich eines Rollenbundes des Freilaufgetriebes, auch Innenring genannt, durch einen Anschlag an einen Mitnehmer, genauer einen Boden des Mitnehmers, begrenzt. Andererseits wird die Axialbewegung durch eine als Anschlag fungierende Haltescheibe oder allgemeiner Axialbegrenzung begrenzt. Ein Abstand der Haltescheibe zum Mitnehmer kann unter anderem durch die Dicke einer dazwischen angeordneten Führungsscheibe oder allgemeiner Führungseinheit definiert werden. Der Rollenbund ist zwischen den Anschlägen am Mitnehmerboden und an der Haltescheibe angeordnet bzw. in axialer Richtung begrenzt. Um ein Einklemmen des Rollenbunds zwischen diesen Anschlägen zu vermeiden, wodurch eine Drehbewegung des Ritzels verhindert ist, ist die Begrenzung des Ritzels bzw. des Rollenbundes in axiale Richtung als Spielpassung ausgelegt. Ein axiales Spiel ergibt sich dann aus der Summe der axialen Maße des Mitnehmers, der Haltescheibe, der Führungsscheibe und des Rollenbundes. Bei PKW-Startern beträgt das Axialspiel je nach Toleranzlage und Ausführung zwischen 0,1 mm und 1 mm.Known starting devices comprise a freewheel gear with an axially playfully mounted, rotatable pinion. An axial movement of the pinion is limited on both sides by rigid stops. On the one hand, the axial movement of the pinion in the region of a roller collar of the freewheel gear, also called inner ring, limited by a stop on a driver, more precisely a bottom of the driver. On the other hand, the axial movement is limited by a stop disc acting as a stop or general Axialbegrenzung. A distance between the retaining disk and the driver can be defined inter alia by the thickness of a guide disk or general guide unit arranged therebetween. The roller collar is arranged between the stops on the driver base and on the retaining disk or limited in the axial direction. In order to avoid trapping of the roller coil between these attacks, whereby a rotational movement of the pinion is prevented, the limitation of the pinion or the roller collar in the axial direction is designed as a clearance fit. An axial clearance then results from the sum of the axial dimensions of the driver, the retaining washer, the guide plate and the roller collar. For car starters, the axial clearance is between 0.1 mm and 1 mm, depending on the tolerance position and design.
Aufgrund dieses Axialspiels werden bei den bekannten Freilaufgetrieben axiale Kräfte vom Ritzel nicht direkt in axialer Richtung in den Mitnehmerboden geleitet, sondern über ein Klemmsystem, bestehend aus Rollenboden, Rollen und Mitnehmer, in radiale Richtung in den Mitnehmer geleitet und können damit zur Aufhebung der Selbsthemmung und zum Durchrutschen des Freilaufs, also einem Funktionsausfall, führen.Due to this axial clearance axial forces are not directed from the pinion directly in the axial direction in the driver base in the known freewheel transmissions, but passed through a clamping system consisting of roller base, rollers and drivers in the radial direction in the driver and can thus to cancel the self-locking and to slip through the freewheel, so a malfunction lead.
Bei der Montage eines derartigen Freilaufs wird eine Verschlusskappe durch einen Reduzierring plastisch auf den Mitnehmer verformt, wobei das Material der Verschlussklappe in Rillen an der Außenseite des Mitnehmers fließt. Dadurch entsteht ein Formschluss und die Teile des Freilaufs - Haltescheibe, Führungsscheibe, Mitnehmer, Verschlusskappe - sind unlösbar verbunden. Das Reduzieren wird mittels eines axial über die Verschlusskappe geführten Reduzierwerkzeugs durchgeführt. Durch die axiale Reduzierbewegung entstehen Axialkräfte, die auch auf den Verbund von Haltescheibe und Führungsscheibe wirken. Die relativ weiche Führungsscheibe und die benachbarten Haltescheiben verformen sich dabei. Dadurch kommt es zu einer Erhöhung des Axialspiels des Ritzels im Freilauf mit den vorstehend beschriebenen negativen Folgen, beispielsweise auch aufgrund eines Aufstellungseffekts der Haltescheibe an dem der Verschlusskappe abgewandten Seite.When mounting such a freewheel cap is plastically deformed by a reducing ring on the driver, wherein the material of the flap flows in grooves on the outside of the driver. This creates a positive connection and the parts of the freewheel - holding disc, guide disc, driver, cap - are permanently connected. The reduction is carried out by means of a guided axially over the cap Reduktionswerkzeugs. Due to the axial Reduzierbewegung arise axial forces, which also act on the composite of retaining disk and guide disc. The relatively soft guide disk and the adjacent retaining disks deform during this process. This results in an increase of the axial play of the pinion in the freewheel with the negative consequences described above, for example, due to a placement effect of the retaining disk on the side facing away from the cap.
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Aus der
Weitere Andrehvorrichtungen mit ähnlichen Scheiben sind beispielsweise aus der
Die erfindungsgemäße Andrehvorrichtung und das erfindungsgemäße Verfahren zur Montage einer Andrehvorrichtung mit den Merkmalen des entsprechenden Hauptanspruches oder nebengeordneten Anspruches haben dem Stand der Technik gegenüber den Vorteil, dass bei einer Andrehvorrichtung, insbesondere einem Starter, zum Andrehen einer Brennkraftmaschine, zumindest umfassend ein Freilaufgetriebe, bei dem eine axial zwischen einer Stirngeometrie einer Axialbegrenzung und einer zu der Stirngeometrie der Axialbegrenzung weisenden Stirngeometrie eines Außenteils eine Führungseinheit angeordnet ist, vorgesehen ist, dass die Führungseinheit zumindest teilweise versenkt in mindestens einer Versenkung in mindestens einer der Stirngeometrien angeordnet ist, wodurch deren Anteil an der Toleranzkette reduziert ist. Zudem ist bei einem Versenken ein Aufstelleffekt der Führungseinheit bei einem Verbinden mittels Reduzieren mit einer Verschlusskappe reduziert bzw. eliminiert. Die Andrehvorrichtung umfasst ein Freilaufgetriebe, bei dem eine Verschlusskappe stirnseitig und umfänglich an einem Außenteil anliegt. Die Verschlusskappe ist umfänglich an einem Umfang des Außenteils auf das Außenteil reduzierbar oder reduziert. Durch eine zumindest teilweise Versenkung der Führungseinheit ist auch eine kürze Verschlusskappe einsetzbar, wodurch Gewicht einsparbar ist.The starting device according to the invention and the inventive method for mounting a starter with the features of the corresponding main claim or independent claim have the advantage over the prior art that in a starter, in particular a starter, for cranking an internal combustion engine, at least comprising a freewheel gear in which a guide unit is arranged axially between a front geometry of an axial limitation and a front geometry of the axial limitation facing end geometry, it is provided that the guide unit is at least partially sunk in at least one sinking in at least one of the end geometries, whereby their share of the tolerance chain is reduced. In addition, in a sinking a Aufstelleffekt the guide unit is reduced or eliminated in a connection by reducing with a cap. The starting device comprises a freewheel gear, in which a closure cap frontally and circumferentially on an outer part rests. The closure cap is circumferentially reducible or reduced on a circumference of the outer part to the outer part. By at least partially sinking the guide unit and a shorter cap can be used, which weight is saved.
Das Freilaufgetriebe umfasst in einer Ausführungsform als Innenteil einen Innenring und einen Außenring als Außenteil. An dem Innenring ist in einer Ausführungsform eine Verzahnung ausgebildet, sodass der Innenring als Ritzel fungiert. In einer Ausführungsform ist die Verzahnung mehrteilig ausgeführt. Insbesondere ist die Verzahnung einteilig mit dem Innenring ausgebildet. Der Außenring ist bevorzugt als Mitnehmer ausgebildet, welcher mit dem Innenring zusammenwirkt. Der Außenring umgibt dabei einen Abschnitt des Innenrings. Dieser Abschnitt ragt von einem Mitnehmerboden vor und bildet stirnseitig eine Stirngeometrie aus. Der von dem Außenring umgebende Abschnitt des Innenrings ist als Rollenbund ausgebildet. An diesem sind zum Zusammenwirken mit dem Außenring Rollen, Kugeln, Tonnen oder andere Wälzkörper angeordnet, sodass eine Relativbewegung in Umfangsrichtung von Außenring zu Innenring möglich ist. Die Rollen sind somit in radialer Richtung zwischen den entsprechenden Abschnitten des Innenrings (Rollenbund) und des Außenrings angeordnet.The freewheel transmission comprises in one embodiment as an inner part of an inner ring and an outer ring as an outer part. In one embodiment, a toothing is formed on the inner ring, so that the inner ring acts as a pinion. In one embodiment, the toothing is designed in several parts. In particular, the toothing is formed integrally with the inner ring. The outer ring is preferably designed as a driver, which cooperates with the inner ring. The outer ring surrounds a portion of the inner ring. This section protrudes from a driver base and forms a frontal geometry of the front. The one from the outer ring surrounding portion of the inner ring is formed as a roll collar. At this rollers, balls, tons or other rolling elements are arranged to cooperate with the outer ring, so that a relative movement in the circumferential direction from outer ring to inner ring is possible. The rollers are thus arranged in the radial direction between the corresponding sections of the inner ring (roller collar) and the outer ring.
Das Freilaufgetriebe umfasst in einer Ausführungsform somit das Ritzel, den Rollenbund (Innenring), den Mitnehmer (Außenring) und eine als Axialbegrenzung fungierende Haltescheibe. In einer Ausführungsform ist zwischen der Haltescheibe und dem Mitnehmer, genauer der Stirngeometrien der Axialbegrenzung und des Mitnehmers, in axialer Richtung, also sandwichartig, eine Führungsscheibe angeordnet. Die Führungsscheibe ist dabei so zwischen den Stirngeometrien angeordnet, dass diese nicht an die Haltescheibe gepresst ist, sondern stattdessen ein Spiel aufweist. Eine Verschlusskappe fixiert die Haltescheibe und den Mitnehmer und gegebenenfalls die Führungsscheibe. Der Rollenbund ist axial zwischen der Haltescheibe und dem Mitnehmer drehbar und spielbehaftet gelagert. Das Axialspiel des Ritzels ergibt sich aus einer Summe der Maße bzw. Toleranzen der Führungsscheibe und des Mitnehmers abzüglich der Maße bzw. Toleranzen des Rollenbundes, jeweils in axialer Richtung. Die Axialbewegung bzw. das Axialspiel des Ritzels, welches durch das Spiel des den Rollenbund formenden Abschnitts des Ritzels zwischen dem Mitnehmerboden und der Haltescheibe bestimmt ist, ist axial von mindestens einem Anschlag begrenzt.The freewheel transmission thus comprises in one embodiment, the pinion, the roller collar (inner ring), the driver (outer ring) and a retaining disc acting as an axial limit. In one embodiment, between the retaining plate and the driver, more precisely the end geometries of the axial boundary and the driver, in the axial direction, that is sandwiched, a guide disc is arranged. The guide disk is arranged between the front geometries, that this is not pressed against the retaining disk, but instead has a game. A cap fixes the retaining washer and the driver and possibly the guide disc. The roller collar is mounted rotatably and with play axially between the retaining plate and the driver. The axial clearance of the pinion results from a sum of the dimensions or tolerances of the guide plate and the driver minus the dimensions or tolerances of the roller collar, each in the axial direction. The axial movement or the axial play of the pinion, which is determined by the play of the roller collar forming portion of the pinion between the driver base and the retaining disc, is axially limited by at least one stop.
Die Krafteinlenkung beim Reduzieren erfolgt über die reduzierten Abschnitte. Erfindungsgemäß ist die Führungseinheit oder die Führungsscheibe versenkt in der Stirngeometrie oder den Stirngeometrien angeordnet. Auf diese Weise kontaktiert die Verschlusskappe nicht die Führungsscheibe. Die Haltescheibe kontaktiert die Stirngeometrie des Außenteils bzw. grenzt direkt an diese an. Somit erfolgt beim Reduzieren keine direkte Krafteinleitung in die weichere Führungsscheibe, sodass ein Aufstelleffekt an einem inneren Bereich der Führungsscheibe unterbleibt. Ein Bodenbereich der Verschlusskappe ist durch seine Form als eine Art Tellerfeder ausgelegt und liegt federnd an der darunter liegenden Haltescheibe an. Dadurch können Längentoleranzen im Verband ausgeglichen und eine definierte Presskraft eingestellt werden.The force reduction during reduction takes place via the reduced sections. According to the invention, the guide unit or the guide plate is arranged countersunk in the face geometry or the face geometries. In this way, the cap does not contact the guide disc. The holding plate contacts the front geometry of the outer part or directly adjoins it. Thus, when reducing no direct force is introduced into the softer guide disc, so that a Aufstelleffekt at an inner region of the guide disc is omitted. A bottom portion of the cap is designed by its shape as a kind of plate spring and is resiliently against the underlying holding disc. As a result, length tolerances in the dressing can be compensated and a defined pressing force can be set.
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.
In einer Ausführungsform ist vorgesehen, dass die Versenkung mittels Versenkungsmitteln realisiert ist, ausgewählt aus der Gruppe der Versenkungsmittel umfassend Ausnehmungen, Anformungen, Vorsprünge, Rippen, Nuten, Schlitze, Absätze, Innenausnehmungen, Außenausnehmungen und dergleichen. Die Versenkung kann auf beliebige Weise ausgeformt werden, beispielsweise durch Anformen von Vorsprüngen oder Ausbilden von Ausnehmungen. Bevorzugt ist eine Ausnehmung von der Stirngeometrie in Richtung entgegen der gegenüberliegenden Stirngeometrie ausgebildet. Auf diese Weise ist gegenüber einem vorderen Bereich der Stirngeometrie ein innerer Absatz ausgeführt. Die Flanken von dem vordersten Bereich der Stirngeometrie hin zu einem Boden der Versenkung können beliebig steil ausgebildet sein. Beispielsweise ist der Absatz winklig, insbesondere rechtwinklig ausgebildet. In einer anderen Form sind die Flanken schräg ausgebildet, sodass eine zumindest am Rand konisch zulaufende Versenkung ausgebildet ist. Die Form der Versenkung ist bevorzugt an die Form der Führungseinheit ausgebildet. Entsprechend sind auch die Versenkungsmittel ausgeführt. Bevorzugt ist eine komplementäre Ausführung von Versenkung und Führungseinheit vorgesehen, wobei entsprechende Versenkungsmittel vorgesehen sind. In einer Ausführungsform umgeben die Versenkungsmittel die Führungseinheit. In einer anderen Ausführungsform durchringen die Versenkungsmittel die Führungseinheit, beispielsweise in Form von stiftartigen Vorsprüngen. Entsprechend weist in einer Ausführungsform die Führungseinheit Durchgangsöffnungen auf.In one embodiment it is provided that the sinking is realized by means of sinking means selected from the group of sinking means comprising recesses, projections, projections, ribs, grooves, slots, shoulders, internal recesses, external recesses and the like. The sinking can be formed in any way, for example by molding projections or forming recesses. Preferably, a recess is formed by the face geometry in the direction opposite to the opposite face geometry. In this way, an inner paragraph is executed with respect to a front portion of the front geometry. The flanks from the foremost region of the front geometry to a bottom of the sinking can be formed as steep as desired. For example, the paragraph is angled, in particular formed at right angles. In another form, the flanks are formed obliquely, so that at least at the edge of a tapered sinking is formed. The shape of the recess is preferably formed on the shape of the guide unit. Accordingly, the sinking means are executed. Preferably, a complementary embodiment of sinking and guide unit is provided, with corresponding sinking means are provided. In one embodiment, the sinking means surround the guide unit. In another embodiment, the sinking means penetrate the guide unit, for example in the form of pin-like projections. Accordingly, in one embodiment, the guide unit on passage openings.
Eine Ausführungsform sieht vor, dass die Versenkungsmittel als axial eingebrachte Innenausnehmung ausgebildet sind, in welche die Führungseinheit radial durch die Stirngeometrie begrenzt zumindest teilweise axial versenkt angeordnet ist. Die Innenausnehmung ist in einer Ausführungsform in der Stirngeometrie des Außenteils ausgebildet. In einer anderen Ausführungsform ist die Stirngeometrie der Axialbegrenzung ausgebildet. In noch einer anderen Ausführungsform ist die Versenkung in beiden Stirngeometrien ausgebildet, bevorzugt zu gleichen Teilen in beiden Stirngeometrien. In anderen Ausführungsformen ist eine andere Anteilsverteilung vorgesehen. Die Tiefe der Versenkung bzw. die Summe der Tiefen der Versenkungen ist bevorzugt größer gleich der Tiefe der Führungseinheit, sodass diese komplett in der Versenkung aufgenommen ist. Die Tiefe ist dabei eine Abmessung in axialer Richtung bei einem zusammengebauten Zustand des Starters.An embodiment provides that the countersinking means are formed as axially introduced inner recess, in which the guide unit is arranged radially limited by the front geometry at least partially sunk axially. The inner recess is formed in one embodiment in the front geometry of the outer part. In another embodiment, the front geometry of the axial boundary is formed. In yet another embodiment, the countersink is formed in both end geometries, preferably in equal parts in both end geometries. In other embodiments, a different proportion distribution is provided. The depth of the sinking or the sum of the depths of the sinkers is preferably greater than or equal to the depth of the guide unit, so that they are completely in the Sinking is included. The depth is a dimension in the axial direction in an assembled state of the starter.
Erfindungsgemäß ist zudem vorgesehen, dass die Führungseinheit zumindest in axialer Richtung vollständig in der Versenkung angeordnet ist, sodass die Stirngeometrien stirnseitig axial aneinander angrenzen. Dabei kann die Versenkung so ausgebildet sein, dass die Führungseinheit mit Spiel in der Versenkung angeordnet ist. Das Spiel ist bevorzugt in radiale und/oder axiale Richtung ausgebildet.According to the invention, it is additionally provided that the guide unit is arranged completely in the recess, at least in the axial direction, so that the end geometries are axially adjacent to one another on the end face. In this case, the sinking can be designed so that the guide unit is arranged with play in the sinking. The game is preferably formed in the radial and / or axial direction.
Dementsprechend sieht eine weitere Ausführungsform vor, dass die Führungseinheit spielbehaftet in der Versenkung angeordnet ist.Accordingly, a further embodiment provides that the guide unit is arranged with play in the sinking.
In einer bevorzugten Ausführungsform ist vorgesehen, dass die Versenkung als axiale Ausnehmung in der Stirngeometrie des Außenteils ausgebildet ist, sodass die Führungseinheit innerhalb eines äußeren Randes der Stirngeometrie der Ausnehmung vollständig und/oder mit Spiel aufgenommen ist. Die Tiefe der Versenkung ist in einer Ausführungsform in radiale Richtung konstant. In einer anderen Ausführungsform variiert die Tiefe der Versenkung in radiale Richtung. In noch einer anderen Ausführungsform variiert die Tiefe in Umfangsrichtung. Bevorzugt ist die Tiefe in Umfangsrichtung konstant.In a preferred embodiment it is provided that the countersink is formed as an axial recess in the end geometry of the outer part, so that the guide unit is completely and / or taken up with play within an outer edge of the front geometry of the recess. The depth of the recess is constant in one embodiment in the radial direction. In another embodiment, the depth of the recess varies in the radial direction. In yet another embodiment, the depth varies in the circumferential direction. Preferably, the depth is constant in the circumferential direction.
Zudem sieht eine bevorzugte Ausführungsform vor, dass eine Verschlusskappe zum axialen und/oder radialen Einfassen der Axialbegrenzung, der Führungseinheit und/oder des Außenteils vorgesehen ist. Die Verschlusskappe wird umfänglich auf das Außenteil bzw. die radial äußere Fläche oder den radial äußeren Rand der Axialbegrenzung reduziert, insbesondere in radiale Richtung reduziert. Zudem weist die Verschlusskappe einen radial nach innen gerichteten Boden auf. Mit diesem grenzt die Verschlusskappe an eine axial entgegengesetzt zu der Führungseinheit weisende Stirnseite der Axialbegrenzung an, sodass die Axialbegrenzung in radiale Richtung festgelegt ist.In addition, a preferred embodiment provides that a closure cap for axially and / or radially enclosing the axial boundary, the guide unit and / or the outer part is provided. The closure cap is circumferentially reduced to the outer part or the radially outer surface or the radially outer edge of the Axialbegrenzung, in particular reduced in the radial direction. In addition, the closure cap has a radially inwardly directed bottom. With this, the cap adjacent to an axially opposite to the guide unit facing end side of the Axialbegrenzung, so that the Axialbegrenzung is fixed in the radial direction.
In einer Ausführungsform ist vorgesehen, dass ein Außenabmaß der Führungseinheit kleiner ist, als ein Außenabmaß des Außenteils und/oder der Axialbegrenzung, sodass die Verschlusskappe kontaktlos zu der Führungseinheit angeordnet ist. Auf diese Weise ist verhindert, dass die Führungseinheit beim Reduzieren an die Verschlusskappe angrenzt und ggf. eine Kraftübertragung auf die Führungseinheit erfolgt. Da die Führungseinheit aus einem weicheren oder leichter verformbaren Material als die Axialbegrenzung und/oder das Außenteil ausgebildet ist, ist die Führungseinheit leichter verformbar, was verhindert werden soll. Denn bei einer radial äußeren Krafteinleitung auf die Führungseinheit würde bei einem Kontakt ein Aufstellen der Führungseinheit an einem radial inneren Teil stattfinden, welcher wiederum ein Axialspiel erhöhen würde. Alleine durch die Vermeidung des Aufstelleffekts wird ein Axialspiel wirkungsvoll reduziert.In one embodiment, it is provided that an outer dimension of the guide unit is smaller than an outer dimension of the outer part and / or the axial limitation, so that the closure cap is arranged contactlessly relative to the guide unit. In this way it is prevented that the guide unit when reducing to the cap adjacent and, if necessary, a power transmission to the guide unit takes place. Since the guide unit is formed of a softer or more easily deformable material than the axial boundary and / or the outer part, the guide unit is easier to deform, which should be prevented. Because with a radially outer force on the guide unit would be a contact of the guide unit at a radially inner part take place, which in turn would increase an axial play. Alone by avoiding the Aufstellffekts an axial play is effectively reduced.
Das erfindungsgemäße Verfahren mit den Merkmalen des entsprechenden Hauptanspruches oder nebengeordneten Anspruches hat dem Stand der Technik gegenüber den Vorteil, dass bei einem Verfahren zur Montage und/oder Herstellung einer Andrehvorrichtung, insbesondere einem Starter, zum Andrehen einer Brennkraftmaschine, zumindest umfassend ein Freilaufgetriebe, bei dem eine Führungseinheit axial zwischen einer Stirngeometrie einer Axialbegrenzung und einer zu der Stirngeometrie der Axialbegrenzung weisenden Stirngeometrie eines Außenteils angeordnet wird, vorgesehen ist, dass eine Versenkung an mindestens einer der Stirngeometrien vorgesehen wird und die Führungseinheit zumindest teilweise versenkt in der Versenkung angeordnet wird. Die Versenkung wird beispielsweise nachträglich in die Stirngeometrie spanend eingebracht. In anderen Ausführungsformen wird die Stirngeometrie durch Materialaufbringung ausgebildet. In einer Ausführungsform wird ein radial äußerer, zumindest teilweise umlaufender Rand ausgeführt. Die Versenkung bzw. die Versenkungen werden in Summe mit einer größeren Tiefe, das heißt in axiale Richtung, ausgebildet, als die Tiefe der Führungseinheit, sodass die Führungseinheit komplett versenkbar angeordnet werden kann.The inventive method with the features of the corresponding main claim or independent claim has the advantage over the prior art that in a method for assembling and / or producing a starter, in particular a starter, for cranking an internal combustion engine, at least comprising a freewheel gear, in which a guide unit is arranged axially between a front geometry of an axial limitation and a front geometry of the axial limitation pointing front geometry of an outer part, is provided that a sinking is provided on at least one of the end geometries and the guide unit is at least partially sunk in the sinking. The sinking is introduced, for example, later machined in the face geometry. In other embodiments, the face geometry is formed by material application. In one embodiment, a radially outer, at least partially circumferential edge is performed. The sinking or the countersinks are in total formed with a greater depth, that is in the axial direction, than the depth of the guide unit, so that the guide unit can be arranged completely retractable.
Nach dem Versenken der Führungseinheit wird eine Verschlusskappe stirnseitig und umfänglich an einem Außenteil angelegt. Die Verschlusskappe wird umfänglich an einem Umfang des Außenteils und der Axialbegrenzung auf das Außenteil reduziert. Eine daraus resultierende Krafteinleitung erfolgt durch das Versenken nicht auf die Führungseinheit. Das Reduzieren der Verschlusskappe auf das Außenteil erfolgt mittels eines Reduzierrings. Der Reduzierring weist ein inneres Abmaß auf, welches größer ist als das Außenabmaß der Verschlusskappe. Wird der Reduzierring nun axial über die Verschlusskappe bewegt, so beginnt der Reduziervorgang, bei dem die Verschlusskappe im Außenabmaß reduziert wird. Durch axiales Bewegen des Reduzierrings über die Verschlusskappe wird deren äußeres Abmaß auf das Innenabmaß des Reduzierrings reduziert. Dabei verformt sich die Verschlusskappe entsprechend und beginnt sich in Rillen und/oder entlang der Oberfläche des Mitnehmers zu bewegen. Durch dieses Fließen der Verschlusskappe wird eine unlösbare Verbindung mit dem Mitnehmer reduziert.After sinking the guide unit, a cap is placed on the front side and circumferentially on an outer part. The cap is circumferentially reduced on a circumference of the outer part and the Axialbegrenzung on the outer part. A resulting force is introduced by sinking not on the management unit. The reduction of the cap on the outer part by means of a Reduzierrings. The Reduzierring has an internal dimension which is greater than the outer dimension of the cap. If the reducing ring is now moved axially over the closing cap, the reduction process starts, in which the closing cap is reduced in the outer dimension. By axially moving the Reduzierrings on the cap is the outer dimension to the internal dimension reduced reducing ring. In this case, the cap deforms accordingly and begins to move in grooves and / or along the surface of the driver. By this flow of the cap, a permanent connection with the driver is reduced.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:
- Figur 1
- in einer Querschnittansicht eine Andrehvorrichtung und
- Figur 2
- schematisch in einer Querschnittsansicht einen Ausschnitt eines Freilaufgetriebes der Andrehvorrichtung nach
Figur 1 mit einer Verschlusskappe und einem Außenteil.
- FIG. 1
- in a cross-sectional view a starter and
- FIG. 2
- schematically in a cross-sectional view of a section of a freewheel gear of the starter after
FIG. 1 with a cap and an outer part.
Die
Ein Planetenträger 12 treibt die Abtriebswelle 24 an, auf welcher ein Freilaufgetriebe 33 angeordnet ist, dessen Innenring, auch Rollenbund 34 genannt, einen ritzelartigen Fortsatz 35 (Ritzel) aufweist, an dem eine Außenverzahnung 36 ausgebildet ist. Der Außenring des Freilaufgetriebes 33, auch Mitnehmer 37 genannt, ist über ein Steilgewinde 38 mit der Abtriebswelle 24 verbunden. Auf ihn wirkt eine sogenannte Einspurfeder 39 ein. Durch axiales Verschieben des Freilaufgetriebes 33 kann die Außenverzahnung 36 mit einem Zahnkranz 40 einer Brennkraftmaschine zwecks des Startvorgangs in Eingriff gebracht werden. Dies geschieht mit Hilfe des (Einrück-) Relais 42, in welchem beim Einschalten eines Stroms ein Magnetanker über einen Fortsatz 43 einen Hebel 44 verschwenkt, der über eine Kulisse 45, die zwischen Scheiben 46 liegt, das Freilaufgetriebe 33 nach links verschiebt. Der Hebel 44 ist zweiarmig ausgebildet und mittels Zapfen 48, in einem gehäusefesten Lager 49 schwenkbar angeordnet. Auf diesen Vorgang ist nur kurz eingegangen, da nicht erfindungswesentlich.A
An dem Deckel 13 liegt eine Bürstenplatte 53 an, welche mit dem Deckel 13 verschraubt ist. Die Bürstenplatte 53 ist einstückig ausgebildet. An ihr sind insbesondere aus Kunststoff bestehende Bürstenhalter befestigt, in welchen Kohlen angeordnet sind, die sich unter Federdruck an einen Kommutator 63 anlegen, welcher an der Ankerwelle 17 angeordnet ist. Die Kohlen sind über Anschlusslitzen an einen Kabelschuh angeschlossen, der mit einem Kontakt 68 des Einrückrelais 42 verbunden ist. Die Litzen durchdringen eine Dichtung 70, welche im Gehäuseteil 11 in einer Öffnung angeordnet ist. Die Bürstenplatte 53 ist mit Schrauben 62 am Deckel 13 befestigt.On the
Die
Claims (8)
- Starting device (100), in particular a starter, for starting an internal combustion engine, at least comprising a freewheel gearbox (33), in which an axial movement of an inner part (34) is limited by a retaining disc acting as a stop, and in which a guide disc (125a) is arranged axially between a front geometry (121) of the retaining disc (120) and a front geometry (200) of an outer part (137) orientated towards the front geometry (121) of the retaining disc (120), wherein the guide disc (125a) is arranged at least partially recessed in at least one recess (210) in at least one of the front geometries (121, 200), characterized in that the guide disc (125a) is arranged completely in the recess (210) at least in axial direction (A), so that the front geometries (121, 200) are adjacent to each another axially at their front sides.
- Starting device (100) according to claim 1, characterized in that the recess (210) is realized by means of recessing means selected from the group of the recessing means comprising cutouts, preforms, projections, ribs, grooves, slots, heels, internal cutouts, external cutouts and the like.
- Starting device (100) according to claim 1 or 2, characterized in that the recessing means is formed as an axially introduced internal cutout (210a) into which the guide disc (125a) is arranged at least partially axially recessed radially limited by the front geometry (121, 200).
- Starting device (100) according to any one of the preceding claims 1 to 3, characterized in that
the guide disc (125a) is arranged in the recess (210) with play. - Starting device (100) according to any one of the preceding claims 1 to 4, characterized in that
the recess (210) is formed as an axial recess in the front geometry (200) of the outer part (137) so that the guide unit (125) is received completely and/or with play within an outer edge of the front geometry (200) in the recess. - Starting device (100) according to any one of the preceding claims 1 to 5, characterized in that
a closing cap (110) for axially and/or radially gripping the retaining disc (120), the guide disc (125a) and/or the outer part (137) is provided. - Starting device (100) according to any one of the preceding claims 1 to 6, characterized in that
an outer dimension of the guide disk (125a) is smaller than an outer dimension of the outer part (137) and/or the retaining disk (120), so that the closing cap (110) is arranged contactless to the guide disk (125a). - Method for mounting and/or producing a starting device (100), in particular a starter, for starting an internal combustion engine, at least comprising a freewheel gearbox (33), in which an axial movement of an inner part (34) is limited by a retaining disc acting as a stop, in which a guide disc (125a) is arranged axially between a front geometry (121) of a retaining disc (120) and a front geometry (200) of an outer part (137) orientated towards the front geometry (121) of the retaining disc (120), wherein a recess (210) is provided on at least one of the front geometries (121, 200) and the guide disc (125a) is arranged at least partially recessed in the recess (121, 200), characterized in that the guide disc (125a) is arranged completely in the recess (210) at least in axial direction (A), so that the front geometries (121, 200) are adjacent to each another axially at their front sides.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102012217517.2A DE102012217517A1 (en) | 2012-09-27 | 2012-09-27 | Starting device and method for mounting and / or producing a starter |
Publications (3)
Publication Number | Publication Date |
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EP2713041A2 EP2713041A2 (en) | 2014-04-02 |
EP2713041A3 EP2713041A3 (en) | 2017-04-12 |
EP2713041B1 true EP2713041B1 (en) | 2019-09-04 |
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EP13183279.2A Active EP2713041B1 (en) | 2012-09-27 | 2013-09-06 | Starter mechanism and method of assembling and/or producing a starter mechanism |
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EP (1) | EP2713041B1 (en) |
CN (1) | CN103696892B (en) |
DE (1) | DE102012217517A1 (en) |
HU (1) | HUE045870T2 (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2002074A1 (en) * | 1970-01-19 | 1971-07-29 | Bosch Gmbh Robert | Pinion gear for starters of internal combustion engines |
DE2359392A1 (en) | 1973-11-29 | 1975-06-05 | Bosch Gmbh Robert | FREE WHEELING, IN PARTICULAR FOR TURNING DEVICES OF COMBUSTION ENGINE |
JPS54131627U (en) * | 1978-03-03 | 1979-09-12 | ||
JPS6131176Y2 (en) * | 1978-07-14 | 1986-09-10 | ||
DE3040074A1 (en) * | 1980-10-24 | 1982-06-03 | Robert Bosch Gmbh, 7000 Stuttgart | REEL FREEWHEEL FOR TURNING DEVICES OF INTERNAL COMBUSTION ENGINES |
DE3138466A1 (en) * | 1981-09-26 | 1983-04-14 | Robert Bosch Gmbh, 7000 Stuttgart | Roller-type overrunning clutch for starters of internal-combustion engines |
JPH0231582Y2 (en) * | 1984-09-25 | 1990-08-27 | ||
JPS63219871A (en) * | 1987-03-10 | 1988-09-13 | Mitsubishi Electric Corp | Starter device |
JPH02115571A (en) * | 1988-10-26 | 1990-04-27 | Mitsuba Electric Mfg Co Ltd | Guide structure for governor weight in governor device for starter motor |
JPH1037831A (en) * | 1996-07-22 | 1998-02-13 | Hitachi Ltd | Starter |
CN201810449U (en) * | 2010-07-09 | 2011-04-27 | 严绍康 | One-way clutch structure with wear-reducing gasket |
DE102011004702A1 (en) * | 2011-02-25 | 2012-08-30 | Robert Bosch Gmbh | Fixed holding disc |
-
2012
- 2012-09-27 DE DE102012217517.2A patent/DE102012217517A1/en not_active Withdrawn
-
2013
- 2013-09-06 EP EP13183279.2A patent/EP2713041B1/en active Active
- 2013-09-06 HU HUE13183279A patent/HUE045870T2/en unknown
- 2013-09-25 CN CN201310450667.7A patent/CN103696892B/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
HUE045870T2 (en) | 2020-01-28 |
DE102012217517A1 (en) | 2014-03-27 |
CN103696892A (en) | 2014-04-02 |
EP2713041A3 (en) | 2017-04-12 |
CN103696892B (en) | 2017-03-01 |
EP2713041A2 (en) | 2014-04-02 |
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