CN103306877A - Starter for a combustion engine - Google Patents
Starter for a combustion engine Download PDFInfo
- Publication number
- CN103306877A CN103306877A CN2013100732062A CN201310073206A CN103306877A CN 103306877 A CN103306877 A CN 103306877A CN 2013100732062 A CN2013100732062 A CN 2013100732062A CN 201310073206 A CN201310073206 A CN 201310073206A CN 103306877 A CN103306877 A CN 103306877A
- Authority
- CN
- China
- Prior art keywords
- supporting element
- transmitting assemblies
- starter motor
- engaging piece
- face
- 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.)
- Pending
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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
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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
-
- 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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- 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)
Abstract
The invention relates to a starter for a combustion engine. The engine comprises an electric drive motor and a transmission mechanism. A transmission assembly is attached to the end face of a supporting piece in a manner of sliding a clutch.
Description
Technical field
The present invention relates to a kind of starter motor that is used for internal-combustion engine of preamble according to claim 1.
Background technique
In DE10 2,009 001 835A1, a kind of starter motor for internal-combustion engine has been described, it has for the electric drive motor that drives starter pinion, this starter pinion can be axially and the engagement positio that is disengaged the position and is pushed into that is pulled of internal-combustion engine gear ring between in the axle adjusted.The actuation movement of electric drive motor is delivered on the starter pinion by planetary gear mechanism.Starter motor is provided with freewheel, this freewheel is arranged between planetary gear mechanism and the starter pinion and only allows the transmission of moving along sense of rotation, thereby avoids behind engine starting high rotating speed owing to internal-combustion engine to make transmission part and motor part impaired.
The ring gear of planetary gear mechanism is supported on the cover plate of case side, wherein on the cover board is provided with the supporting member that can surrender in order to reduce when starter motor is worked especially because of the issuable torque peak of resonant frequency, and ring gear is along circumferentially supporting thereon.In order to improve effectiveness in vibration suppression, supporting member is implemented to fluting.
Summary of the invention
The object of the invention is to, reduce torque peak in the driving mechanism effect of starter motor with simple structural measure.
According to the present invention, this purpose realizes by the feature of claim 1.Dependent claims provides favourable improvement project.
Be used for cranking internal combustion engine and comprise electric drive motor, driving mechanism and starter pinion according to starter motor of the present invention, this starter pinion can and being disengaged between position and the engagement positio of internal-combustion engine gear ring regulate.The actuation movement of electric drive motor is delivered on the starter pinion by driving mechanism.Starter pinion is for example realized by means of cranking-motor relay in the motion of pushing ahead that is disengaged between position and the engagement positio.Pushing ahead motion and being preferably the axial motion of starter pinion, wherein also can consider in principle radial motion or have the oscillating motion of radial motion component.
Starter motor can be provided with free wheel device provided, and this free wheel device provided preferably is arranged between driving mechanism and the starter pinion and only allows along the transmission of moving of the driving direction of electric drive motor, and transmits infeasible along moving of opposite sense of rotation.Can prevent in this way after accelerating because the higher rotation speed of internal-combustion engine makes the parts of driving mechanism and electric motor impaired.
Synchronous vibration may occur in the work of starter motor, this may cause very large load.For fear of may causing the impaired torque peak of parts, the transmitting assemblies of driving mechanism is supported on according to the mode of sliding clutch with its end face on the end face of supporting element of case side.Transmitting assemblies and supporting element at end face against each other, wherein transmitting assemblies and supporting element are permanently connected and realize along the transmission of torque of the driving direction of electric drive motor in normal condition.Only when overstepping the extreme limit moment, transmitting assemblies could be carried out relative rotary motion with respect to supporting element.Guaranteed thus the torque limit in power train in maximum value, thus reduce torque peak and with torque limit in stall torque.Particularly realize torque limit at the driving direction of electric drive motor.But also can realize in opposite direction torque limit in case of necessity, wherein in opposite direction the size of stall torque both can be identical with the stall torque along driving direction, also can be different from it.
End contact between the supporting element on transmitting assemblies and the housing is a kind of joint space-efficient mode of execution on the one hand.On the other hand, under normal conditions, namely in the end contact of transmitting assemblies and supporting element, power to be passed advantageously is distributed on the whole circumference of the end face that mutually reclines, and obtains thus uniform power transmission or moment transmission.When overstepping the extreme limit moment, the end face of transmitting assemblies upwards slided along the end face of supporting element in week, thus can not be between transmitting assemblies and supporting element further transmitting torque.Also may there be contacting between the end face of transmitting assemblies and supporting element during the slippage.But also possible in principle is that end face is relative to each other spaced apart.
Because the power or the moment that reduce, relevant transmitting assemblies and/or other transmitting assemblies of driving mechanism may be made in plastic components.But in principle also can be by other material, for example made by agglomerated material.
The driving mechanism that is delivered on the starter pinion for the actuation movement with electric drive motor is the epicyclic wheel driving mechanism, for example is planetary gear mechanism.In this case, be supported on the ring gear that transmitting assemblies on the supporting element advantageously is configured to planetary gear mechanism, this ring gear has interior engaging piece, and planet wheel rolls on the engaging piece in this.Ring gear in normal condition be keep regularly with housing and be supported on the supporting element.
In order in normal condition, to guarantee on the one hand transmitting assemblies in the secure support on the supporting element and when overstepping the extreme limit moment, to realize on the other hand releasing along circumferential support, according to a kind of favourable mode of execution, the end face of transmitting assemblies is provided with engaging piece, the end face of close supporting element is provided with engaging piece equally, and wherein the engaging piece of transmitting assemblies and supporting element is engaged with each other.In normal conditions or normal condition, this engagement is enough to support the torque of generation.On the contrary, when overstepping the extreme limit moment, engagement releasing is so that relative rotary motion and torque limit that transmitting assemblies is carried out with respect to supporting element work.
Can affect the size of stall torque by the design of this engagement.Therefore for example in order to transmit larger torque, engaging piece can have tooth cross section rectangle or approximate rectangular, more is easy to make engagement to be converted in the more flat situation in the tilt angle on the flank of tooth on the contrary to be disengaged and has correspondingly reduced stall torque.Surface design by the tooth that is engaged with each other, the roughness of tooth surface for example, also can affect stall torque, equally measure (particularly point-blank, protruding ground or lowland are shaped tooth surface) by other geometrical construction and be used for vertically the power that transmitting assemblies and supporting element press to each other also can be affected stall torque.
According to another favourable mode of execution regulation, transmitting assemblies and supporting element can relative to each other be carried out axial relative movement.When carrying out axial relative movement, the engagement of engagement positio converts to and is disengaged.In principle, to be embodied as the axial clearance of one or two parts that are engaged with each other be enough in axial relative movement.Advantageously, can the axial adjustment transmitting assemblies, on the contrary, supporting element is arranged to housing fixing.Yet supporting element also can have very little at least axial controllability, and on the contrary, transmitting assemblies axial restraint ground arranges.In addition, also can keep two parts with a very little at least axial controllability respectively.
According to another favourable mode of execution, transmitting assemblies and/or supporting element applied the power effect by the power of spring element and enter transmitting torque, end face engagement positio against each other.Guarantee that thus parts are in the contact of transmission of torque under normal conditions.Size by spring force also can affect stall torque.As spring element, such as considering belleville spring, spring sheet, rubber element, dust cover (Abdeckscheiben), magnetic stopper spring etc.
In addition, transmitting assemblies and supporting element can remain on its contact position by damping member.Damping member has the function of axially support and produce reaction force when one or two parts is endeavoured to arrive non-contacting position.Also can affect stall torque by damping member.
Description of drawings
In other claim, description of drawings and accompanying drawing, obtain other advantage and favourable mode of execution.In the accompanying drawing:
Fig. 1 shows the starter motor for internal-combustion engine, and it has for the electric drive motor and the planetary gear mechanism that drive starter pinion, and wherein the ring gear of planetary gear mechanism is supported on the supporting element of case side;
Fig. 2 shows the view corresponding to Fig. 1, but wherein ring gear is broken away;
Fig. 3 shows the detail perspective view of the supporting element with end face engaging piece;
Fig. 4 shows the detail perspective view of the ring gear with end face engaging piece;
Fig. 5 shows the sectional view of ring gear and supporting element, and wherein ring gear is supported in the seal ring to ground at a side shaft that deviates from supporting element;
Fig. 6 shows the sectional view of ring gear and supporting element, and wherein ring gear applies the power effect by spring element;
Fig. 7 to Fig. 9 shows the mode of execution modification of the engagement between ring gear and the supporting element.
In the accompanying drawings, identical parts have identical reference character.
Embodiment
The starter motor 1 that is used for internal-combustion engine has been shown in Fig. 1 and Fig. 2, this starter motor has the starter pinion 2 on axle 3, wherein starter pinion 2 axial adjustable grounds are maintained on the axle 3 and can regulate between the engagement positio that is disengaged the position and is pushed into that is pulled, the gear ring of starter pinion and internal-combustion engine engagement in this engagement positio.The axial motion of pushing ahead of starter pinion 2 is carried out by cranking-motor relay 4, and the adjustment movement of this cranking-motor relay is delivered on the starter pinion 2 by connecting bar 5.
Starter pinion 2 can not be arranged on the axle 3 with relatively rotating, and this axle drives by electric drive motor 6, planetary gear mechanism 7 and free wheel device provided 8.Planetary gear mechanism 7 is connected on after the electric drive motor 6 and is used for the motor drive shaft motion of conversion drive motor.Free wheel device provided 8 axially is connected on the planetary gear mechanism 7 and only guarantees in power train and can drive transmission along the direction of the actuation movement of electric drive motor.
For torque-limiting, the ring gear 9 of planetary gear mechanism 7 is bonded in the corresponding end face engaging piece 12 of supporting element 11 with end face engaging piece 10, and this supporting element remains in the housing 13 of starter motor 1.Planetary gear mechanism 7 is adjacently located in the utmost point shell 14 of electric drive motor 6 together with ring gear 9 and end face.By consisting of ring gear 9 or the end face engaging piece 10 of supporting element 11 or 12 the joint of intermediate bearing, realized torque limit according to the mode of sliding clutch, because the engaging piece that is engaged with each other is can only reach stall torque to the transmission of torque the time.Work if go beyond the limit of on the contrary the torque of moment, then the engagement between ring gear 9 and the supporting element 11 is in and is disengaged, thereby no longer provides the torque between ring gear and the supporting element to support.In order to realize being disengaged, advantageously remain in the utmost point shell 14 of electric drive motor with axial clearance to major general's ring gear 9, and advantageously apply power effect or support by spring element and/or damping member along the direction of the position that engages with engaging piece on the supporting element 11.Yet, replace axial clearance, ring gear 9 and/or supporting element 11 also may be embodied as flexible, the elasticity that it has so that when reaching capacity moment one or two parts resiliently deformable, and engaging piece is converted to from engagement positio be disengaged in this way.
Sectional view according to Fig. 2 shows, and the ring gear 9 of planetary gear mechanism 7 holds planet wheel and sun gear.
The supporting element 11 of case side is contained in the housing 13 of starter motor, and this housing is connected with the utmost point shell 14 of electric drive motor 6.
Figure 3 illustrates the detail perspective view of supporting element 11, Fig. 4 shows the detail perspective view of ring gear 9.As seen from the figure, the parts 9 and 11 of approximate cup-shaped conformation have respectively end face engaging piece 10 or 12 respectively, and wherein under normal conditions in assembling condition, the end face engaging piece is engaged with each other.When overstepping the extreme limit moment, end face engaging piece 10,12 is disengaged.
Fig. 4 further shows ring gear 9 and has interior engaging piece, and the planet wheel of planetary gear mechanism rolls on the engaging piece in this.
As seen from Figure 5, be provided with armature supporting member 16 in utmost point shell 14 in the side that deviates from supporting element 11 of ring gear 9, this armature supporting member has the accommodating part, center, is inserted with in this accommodating part, center for the armature shaft of supporting electric drive motor or the bearing housing 17 of motor drive shaft.Armature bearing spare 16 limits out be used to the holding space that holds damping ring 18 along axial direction, and this damping ring supports ring gear 9 in a side that deviates from supporting element 11 in the axial direction.Damping ring 18 abuts on the inwall of utmost point shell 14.
As seen from Figure 6, in the medial support of utmost point shell 14 spring element 19 is arranged, this spring element applies power effect along the direction towards supporting element 11 to ring gear 9 with axial force.Guarantee that thus the engaging piece of ring gear 9 and supporting element 11 is engaged with each other under normal conditions.When the moment that oversteps the extreme limit (its size is determined by the power of spring element 19), engaging piece is just realized being disengaged.
The mode of execution modification of the engaging piece that is engaged with each other of ring gear 9 and supporting element 11 has been shown in Fig. 7 to Fig. 9.According to Fig. 7, the tooth on the end face engaging piece of ring gear 9 and supporting element 11 has rectangular cross section; In this case, stall torque is relatively very large owing to the geometrical shape of engaging piece.
On the contrary, in Fig. 8 and Fig. 9, tooth on the end face of ring gear 9 and supporting element 11 has trapezoidal cross-section, so that as by Fig. 8 and Fig. 9 as seen, engaging piece can more easily arrive and be disengaged and correspondingly reduce stall torque when having relative rotary motion between ring gear 9 and supporting element 11.
Claims (11)
1. the starter motor that is used for internal-combustion engine, this starter motor has electric drive motor (6) and driving mechanism, wherein transmitting assemblies (9) is supported on the supporting element (11) of case side, it is characterized in that, described transmitting assemblies (9) abuts on the end face of described supporting element (11) in the mode of its end face according to sliding clutch, wherein when overstepping the extreme limit moment, described transmitting assemblies (9) is carried out the relative rotary motion with respect to described supporting element (11).
2. according to starter motor claimed in claim 1, it is characterized in that, described transmitting assemblies (9) has end face engaging piece (10), and this end face engaging piece is bonded on the relevant end face engaging piece (12) that is arranged on the described supporting element (11).
3. according to starter motor claimed in claim 2, it is characterized in that, described end face engaging piece (10,12) is the helical teeth engaging piece.
4. according to each described starter motor in the aforementioned claims 1 to 3, it is characterized in that, described transmitting assemblies (9) and described supporting element (11) be axially relative movement ground setting relative to each other.
5. according to starter motor claimed in claim 4, it is characterized in that, axially adjustable ground keeps described transmitting assemblies (9).
6. according to claim 4 or 5 described starter motors, it is characterized in that, axially adjustable ground keeps described supporting element (11).
7. according to each described starter motor in the aforementioned claim 4 to 6, it is characterized in that, be provided with the damping member (18) that described transmitting assemblies (9) and described supporting element (11) is remained on contact position.
8. according to each described starter motor in the aforementioned claim 4 to 7, it is characterized in that, described transmitting assemblies (9) and described supporting element (11) are applied in the power effect towards the direction of contact position vertically by spring element (19).
9. according to starter motor claimed in claim 8, it is characterized in that, the housing (14) that described spring element (19) is supported on described electric drive motor (6) upward and to described transmitting assemblies (9) applies the power effect.
10. according to each described starter motor in the aforementioned claim 1 to 9, it is characterized in that, described transmitting assemblies (9) is plastic components.
11. according to each described starter motor in the aforementioned claim 1 to 10, it is characterized in that, described driving mechanism is the ring gear (9) that planetary gear mechanism (7) and described transmitting assemblies consist of described planetary gear mechanism (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210203490 DE102012203490A1 (en) | 2012-03-06 | 2012-03-06 | Starter for an internal combustion engine |
| DE102012203490.0 | 2012-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103306877A true CN103306877A (en) | 2013-09-18 |
Family
ID=47900603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100732062A Pending CN103306877A (en) | 2012-03-06 | 2013-03-06 | Starter for a combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2636882A2 (en) |
| CN (1) | CN103306877A (en) |
| DE (1) | DE102012203490A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015202161B4 (en) * | 2015-02-06 | 2016-11-03 | Zf Friedrichshafen Ag | joint assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127372A2 (en) * | 1983-05-27 | 1984-12-05 | LUCAS INDUSTRIES public limited company | Starter motors |
| US4494414A (en) * | 1981-10-24 | 1985-01-22 | Mitsubishi Denki Kabushiki Kaisha | Starter with a planetary gear reduction facilities |
| EP0790405B1 (en) * | 1996-02-16 | 1999-04-28 | Denso Corporation | Starter having planetary gear reduction device |
| US20090320644A1 (en) * | 2008-06-30 | 2009-12-31 | Remy International, Inc. | Torque Limiter for Engine Starter |
| CN102362065A (en) * | 2009-03-25 | 2012-02-22 | 罗伯特·博世有限公司 | Electrical machine having integrated dampening for transmission component |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8314793D0 (en) * | 1983-05-27 | 1983-07-06 | Lucas Ind Plc | Starter motors |
| FR2924872B1 (en) * | 2007-12-10 | 2014-03-28 | Valeo Equip Electr Moteur | REDUCING GEAR ASSEMBLY OF A ROTATING ELECTRIC MACHINE. |
-
2012
- 2012-03-06 DE DE201210203490 patent/DE102012203490A1/en not_active Withdrawn
-
2013
- 2013-02-28 EP EP20130157217 patent/EP2636882A2/en not_active Withdrawn
- 2013-03-06 CN CN2013100732062A patent/CN103306877A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4494414A (en) * | 1981-10-24 | 1985-01-22 | Mitsubishi Denki Kabushiki Kaisha | Starter with a planetary gear reduction facilities |
| EP0127372A2 (en) * | 1983-05-27 | 1984-12-05 | LUCAS INDUSTRIES public limited company | Starter motors |
| EP0790405B1 (en) * | 1996-02-16 | 1999-04-28 | Denso Corporation | Starter having planetary gear reduction device |
| US20090320644A1 (en) * | 2008-06-30 | 2009-12-31 | Remy International, Inc. | Torque Limiter for Engine Starter |
| CN102362065A (en) * | 2009-03-25 | 2012-02-22 | 罗伯特·博世有限公司 | Electrical machine having integrated dampening for transmission component |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2636882A2 (en) | 2013-09-11 |
| DE102012203490A1 (en) | 2013-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |