CN103855843A - Starter, and method for manufacturing and/or assembling armature shaft supporting structure - Google Patents
Starter, and method for manufacturing and/or assembling armature shaft supporting structure Download PDFInfo
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- CN103855843A CN103855843A CN201310642180.9A CN201310642180A CN103855843A CN 103855843 A CN103855843 A CN 103855843A CN 201310642180 A CN201310642180 A CN 201310642180A CN 103855843 A CN103855843 A CN 103855843A
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- armature shaft
- bearing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
- H02K7/1085—Magnetically influenced friction clutches
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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
- F02N11/00—Starting of engines by means of electric motors
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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
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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
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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
- F02N2015/061—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 said axial displacement being limited, e.g. by using a stopper
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/03—Machines characterised by thrust bearings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a starter (100) used for starting an internal combustion engine, especially a starting engine. The starter (100) has an armature shaft (17). The armature shaft is supported at an end (17a) in a floating manner. An inner bearing (200) is disposed for supporting the end (17a). In addition, the invention also relates to a method for manufacturing and/or assembling a supporting structure used for the starter (100) of the internal combustion engine especially the armature shaft (17) of the starter and for reducing the axial clearance. The starter comprises the armature shaft (17). The armature shaft is supported at the end (17a) in a floating manner, wherein the end (17a) is supported in the inside by utilization of the inner bearing (200).
Description
Technical field
The present invention relates to a kind of as described in the preamble for the starting device of cranking internal combustion engine, especially starter according to claim 1.
In addition, the present invention relates to a kind of according to claim 10 as described in the preamble for the manufacture of and/or assembling for the method for the starting device of cranking internal combustion engine, especially starter.
Background technology
The present invention is based on the system with starter or starter motor according to independent claims preamble.
Of the present invention to liking starter and the starter for the vehicle with internal combustion engine, it has the motor with armature and commutator, and wherein, armature has the armature shaft with corresponding armature supporting structure.
From known in the state of the art, for having the starter of vehicle of internal combustion engine, it is with starter relay, and generally includes the DC motor for driving internal combustion engine.
In such starter or starter motor, for example, be responsible for joint or the stroke in ring gear with the relay shift fork system of corresponding relay.When during stroke (also referred to as distance) or more precisely at gear motion, relay pulls back shift fork.
This is by correspondingly realizing relay power.In the time of energising, make axially move or move away from contact towards contact direction with the coefficient switch shaft of magnetic core.Such starter has the motor with stator, and wherein, this stator structure becomes magnet.In addition, this motor has rotor, and this rotor has by the armature forming with cored coil, and this armature can be rotated to support in the magnetic field between stator pole shoes.Carry by commutator and sliding contact, the so-called commutator brush of segmentation and realize for the electric current of armature.In the time that rotor is switched on, also produce magnetic field at this, the magnetic field interaction of this magnetic field and stator.In such starter, driving shaft or the armature shaft of application floating support.At this, armature shaft is supported by means of the lining in insert cover on the end of commutator bearing side.This armature shaft abuts on lining by armature shaft thrust seamed edge in the time of the direction axial motion towards lid or elongation.On the relative end of armature shaft, be configured with the supporting structure on the planetary transmission that is abutting against this of like configurations.Axially vertical gap in this existence is 2mm to the maximum at this.The wearing and tearing in the time moving are improved by this axially vertical gap.In particular, because the carbon brush abrasion improving appears in this end play.In order to limit this axially vertical gap of armature shaft, known axes is to locking system.So far known axial lock locking apparatus comprises the disc being engaged on armature shaft.The axially vertical gap of armature shaft or in brief end play can change by the height of disc.At this, this disc is on the one hand by being engaged in the U-shaped dish in axial trough and surrounding in the axial direction by lining on the other hand, thus this disc is fixed by this U-shaped dish and thrust on lining.The cooperation on armature shaft or in the groove of armature shaft of disc and/or lock plate has tolerance.Because multiple single-pieces are with respect to the tolerance chain of armature shaft, in the time of assembling starter, single-piece tolerance is added, thereby armature shaft can have end play, axially indulge gap or rather, and it is a few tenths of micron or more.Another is known is provided with and is arranged in distolateral bolt for reducing the solution of end play of armature axial clearance or armature shaft, and it is movably arranged on commutator bearing, and can be twisted and come on armature shaft distolateral.
Known a kind of device by means of motor starting internal combustion engine from document CH 97941 A, its full travelling gear is thrown away and is departed from engagement after engaging with one heart with engine axis by oscillating motion and start in the moment of starting, wherein, the speed of actuation movement reduces by twin variator, to reduce in increasing moment of torsion, the current drain of battery is impacted.At this, be provided with and be arranged in distolateral counter-sunk screw according to Fig. 2, it contacts with the distolateral of axle.In addition, counter-sunk screw not only can in the vertical but also can move upward in week.
Summary of the invention
Compared with prior art, have corresponding main claim or side by side the advantage having according to starting device of the present invention and the method according to this invention of the feature of claim be, at the starting device for cranking internal combustion engine, especially starter, this starting device comprises armature shaft, described armature shaft is supported by floating ground in one end thereof, in this starting device, regulation is provided with inner bearing in order to support described end, can realize more compact structure form.Inner bearing is interpreted as such bearing, that is, it is not on neighboring, to be engaged on armature shaft outer surface, but within being arranged in armature shaft at least in part.For this reason, armature shaft has corresponding recess on corresponding end.This recess is preferably arranged in center and substantially extends in the axial direction.The cross section of this recess Rotational Symmetry preferably in the axial direction.For example, this recess is configured to blind hole.
Can realize favourable improvement and the improvement of the device providing in independent claims and claim arranged side by side by the measure of setting forth in the dependent claims.
Regulation in one embodiment, inner bearing is configured to two-piece type, with the parts of bearings of commutator bearing side and the parts of bearings of armature shaft side.The parts of bearings of this armature shaft side at least comprises the female portion, is arranged at least in part in this recess with the parts of bearings of the coefficient commutator bearing of this recess side.In one embodiment, the parts of bearings of armature shaft side is configured to single-piece, for example, be configured to pure recess, blind hole etc.In another embodiment, the parts of bearings of armature shaft side is configured to multi-piece type.Except recess, the execution mode of this multi-piece type comprises slide mass, rolling element or the rolling body of the lining that is engaged in this recess, bearer ring, radial fit, axially slide mass, rolling element or the rolling body etc. that coordinate.It is correspondingly arranged in this recess and with the parts of bearings acting in conjunction of commutator side.In one embodiment, the parts of bearings of commutator bearing side is configured to single-piece, for example, be configured to stretch into the bearing pin in recess.In other execution mode, the parts of bearings of commutator side is configured to multi-piece type.For example, the parts of bearings of this multi-piece type comprises bearing pin, on this bearing pin or this bearing pin place be furnished with other bearing element, the such as slide mass of lining, bearer ring, radial fit, rolling element or rolling body, axially slide mass, rolling element or the rolling body etc. that coordinate.Preferably, these two parts of bearings are configured to complimentary to one another, thereby these two parts of bearings are arranged to acting in conjunction.
Correspondingly specify in another embodiment, the parts of bearings of commutator bearing side stretches in the parts of bearings of armature shaft side at least in part.Preferably, the parts of bearings of commutator bearing side has stopper section, shoulder portion etc., and the section of the parts of bearings of its restriction commutator side is to stretching in the parts of bearings of armature shaft bearing side.Preferably, the parts of bearings of commutator side is configured to bearing pin.This bearing pin has stopper section on an end.This stopper section is configured to one with bearing pin in one embodiment.In another embodiment, this stopper section be configured to independently and be arranged in bearing pin, parts of bearings and/or surround parts of bearings parts, for example cover.In another embodiment, this stopper section or shoulder cage structure are on the parts of bearings of armature shaft bearing side.This stopper section or shoulder quality award from the ministry selection of land are as end play limiting unit.
Therefore, regulation in one embodiment, the parts of bearings of commutator bearing side and/or the parts of bearings of armature shaft side have end play limiting unit.In another embodiment, this end play limiting unit is configured on the parts of bearings of armature shaft side.In another embodiment, this end play limiting unit is configured on the parts of bearings of armature shaft side.In another execution mode again, this end play limiting unit is configured between two parts of bearings.Preferably, this end play limiting unit as stopper section or shoulder portion, that is to say at the molded cage structure stretching out in the radial direction on the parts of bearings of commutator bearing side.In another embodiment, this end play limiting unit is configured to be arranged in the object that reduces friction between parts of bearings, for example rolling element or rolling body, for example ball.Thus, in one embodiment, this end play limiting unit is integrated in the device that reduces friction, otherwise or.
Another execution mode regulation, the parts of bearings of end play limiting unit and commutator side is configured to integrated.For example, this parts of bearings is configured to shoulder portion that cylindrical pin and end play limiting unit be configured to therefrom stretch out, protuberance, warty portion, flank, molded portion etc.Preferably, end play limiting unit be configured to circumferential hoop around shoulder portion, be configured with constant radial dimension in particular.In one embodiment, bearing pin is configured to hollow pins.In another embodiment, bearing pin is configured to solid material.In the execution mode that is configured to hollow pins, bearing pin for example has the through hole extending on the whole axial length of bearing pin.At this in one embodiment, this through hole has constant cross section.In another embodiment, this cross section changes in the axial direction.
In addition, regulation in one embodiment, the parts of bearings of commutator side is configured to axially on (A), to adjust.For this reason, the parts of bearings of commutator side self capable of regulating, for example, be configured to telescopic parts of bearings.In another embodiment, the parts of bearings of commutator side is to be arranged in another parts from the mode of wherein stretching out in the axial direction.At this, this parts of bearings is configured to can be with respect to this another component movement.For example, the parts of this parts of bearings and encirclement have respectively coefficient screw thread, thereby the mode that the parts of bearings of commutator side can bolt is adjusted in the axial direction.In alternate manner, parts of bearings is with the arranged in form of sliding bearing, thereby parts of bearings can move with respect to this sliding bearing in the axial direction.Can realize equally other arrangement, parts of bearings can be adjusted with respect to the parts of this parts of bearings of supporting at least in the axial direction therein.In order to adjust the parts of bearings of commutator side corresponding to the end play of expecting in the axial direction, corresponding lock piece is set, thereby this corresponding parts of bearings regularly, especially position is adjusted to the position of expectation regularly.
One preferred embodiment specifies, the parts of bearings of commutator side be arranged in the neutralization of commutator bearing/or commutator bearing on.This commutator bearing at least in part, is preferably configured to the lid of starting device.Correspondingly, one preferred embodiment in, the parts of bearings of commutator side is can be to be in the axial direction arranged in this lid or commutator bearing with respect to the mode of lid or the adjustment of commutator bearing.Preferably, be provided for the guide portion axially adjusted, for example screw thread, groove or the arbitrarily guide portion of other guide portion form.
In the simple execution mode of one, specify, the parts of bearings of armature shaft side comprises that the recess at center and the parts of bearings of commutator bearing side comprise the protuberance at corresponding center, and wherein, the protuberance at this center stretches in the recess at center at least in part.The parts of bearings of armature shaft side is configured to single-piece at this.The parts of bearings of commutator side is configured to single-piece equally.Thus, this inner bearing is configured to two-piece type.Be configured to bearing pin and wherein form in the embodiment of protuberance by the cylindrical pin of stretching out at the parts of bearings of commutator side, this bearing pin axially stretches out and stretches into corresponding in the recess at this distolateral unlimited center to the distolateral of armature shaft.This recess is configured to the cylindrical recess of blind hole form.This bearing pin is configured to and this recess complementation.Consign and stretch into the degree of depth in recess by means of stopper section restrictive axes.
In addition, one preferred embodiment specifies, the inner bearing at least region of in parts of bearings comprises the device and/or the heat sink that reduce friction, to make minimise wear.In one embodiment, this device configuration that reduces friction is solid material, for example graphite, agglomerated material, slip paint (Gleitlack) or other suitable coating.In another embodiment, this lubricant is configured to fluid, for example oil, gel etc.Preferably, at least one in parts of bearings has the passage of the heat radiation of being suitable for.For example, bearing pin has can derive hot passage by it.At this in one embodiment, this passage has axial passage, thereby bearing pin is configured to hollow pins.In one embodiment, from this axial passage, stretch out one or more other passages that radially or obliquely extend with respect to this axial passage from this axial passage.Pass in the region in the outer surface of parts of bearings of commutator side at the interconnection extending obliquely with respect to axial passage, for example, recess etc. is set.Also can imagine other heat dissipation.That is, for example, the material of heat radiation is set in parts of bearings, the heat that its derivation may produce in the time of operation.Bearing pin, exactly commutator side parts of bearings position regularly, be especially non-rotatably connected with commutator bearing or lid.At this, the parts of bearings of commutator side is preferably pressed in the corresponding opening of lid.In another embodiment, the mode that this parts of bearings connects with form fit is connected and/or the mode that is connected with material is connected with lid with covering.
Compared with prior art, having the advantage that the method according to this invention of corresponding main claim feature has is, for the manufacture of and/or assembling for the method for the supporting structure that reduces end play of the armature shaft of starting device, the especially starter of cranking internal combustion engine, this starting device comprises armature shaft, this armature shaft is supported by floating ground in one end thereof, in this starting device, specify that this end is supported in inside by means of inner bearing, it can more axially be adjusted and construct littlely.Preferably, this starting device is according to the above structure of describing.In order to assemble or manufacture this starting device, be provided with the accommodation section for the parts of bearings of commutator side.In addition, on an end of armature shaft, be provided with the recess for the parts of bearings of armature shaft side.In one embodiment, the parts of bearings of commutator bearing side is pre-assembled in the recess on commutator bearing.In another embodiment, in parts of bearings or on two parts of bearings, be provided with and reduce device friction and/or that reduce heat.In one embodiment, this device that reduces friction comprises ball or another rolling element in the recess that is arranged in armature shaft.Further, parts of bearings is bonded together.At this, the parts of bearings of commutator side is introduced at least in part in the parts of bearings of armature shaft side.After pre-assembled, in a step, carry out the accurate adjustment of end play.For this reason, adjust the parts of bearings of commutator side to ground at the commutator bearing axis having assembled, until obtain the end play of expecting.Be provided preferably with at this stopper section that restriction is adjusted.In one embodiment, this stopper section is configured to the shoulder portion of bearing pin.In another embodiment, bearing pin distolateral as stopper section, for example when this is distolateral and be arranged in ball in the recess of armature shaft in abutting connection with time.After axially adjusting one or more parts of bearings, in another step, fixing one or more parts of bearings.For example,, by realize parts of bearings fixing of commutator side by means of additional axial lockings such as compacting, packing, bonding, soldering, melting welding.
Preferably, this starting device comprises the motor with rotor and stator, and is configured in particular starter or the so-called starter motor of internal combustion engine.This starting device comprises the armature shaft of floating support.Lid is used as commutator bearing simultaneously and fixes thus commutator bearing.This armature shaft does not run through the bearing portion (Lagerstelle) that forms by inner bearing or the lid of fixing commutator side parts of bearings, thereby inner bearing is configured to be arranged in distolateral inner bearing.Armature shaft in this region, that is to say in rearward end, in the same region at bearing portion, do not there is outside shoulder portion, groove etc., thereby the outer surface of armature shaft does not at least have extra processing department in this region.
One preferred embodiment in, the parts of bearings of commutator side is configured to the parts of rigidity.In another embodiment, the parts of bearings of commutator side has at least one flexible section, resilient section especially in the axial direction.In another execution mode, specify, this flexible or flexible region has pretension with respect to armature shaft, to realize pliability.
Brief description of the drawings
Embodiments of the invention shown in the drawings are also explained in detail it in the following description.Wherein:
Fig. 1 shows starting device with transverse sectional view,
Fig. 2 has schematically illustrated that with stereogram band is useful on the commutator bearing of the accommodation section of inner bearing,
Fig. 3 schematically shows around the part of the starting device of inner bearing with parts transversely cutaway view,
Fig. 4 has schematically illustrated the part according to Fig. 3 under another confined state with the stereogram of laterally cutting open,
The stereogram that Fig. 5 schematically laterally cuts open with another has illustrated another execution mode of inner bearing,
Fig. 6 has schematically illustrated the another execution mode of inner bearing with the another stereogram of laterally cutting open, and
Fig. 7 has schematically illustrated the part of an execution mode again for the accommodation section of inner bearing with stereogram.
Embodiment
Fig. 1 to 7 shows the starting device 100 of being with the inner bearing 200 that is useful on armature shaft 17 with different views and different the level of details.
Fig. 1 shows the ignitor of IC engine 100 with relay 42 with transverse sectional view, and this relay 42 is also implemented to switch or engage relay.The housing 10 that is configured to the starting device 100 of starter comprises housing parts 11 and the lid 13 by the interconnective cylindricality of bolt not shown further.The housing parts 11 of this cylindricality is in the wings by covering 13 sealings.Inner bearing 200 is positioned on intermediate portion or mid portion, and the rearward end 17a of the armature shaft 17 of the starter motor 18 of electricity supports by this inner bearing 200, and its armature represents with 19.Radially outside armature 19, on the wall of housing parts 11, be provided with multiple (forever) magnet 20 of starter motor 18.The leading section of armature shaft 17 is bearing in the axially extending blind hole not being shown specifically 23 of driven shaft 24 by the end section 22 of reduced.Bearing cap 25 neutralizations that the other end of this driven shaft 24 is bearing in closure casing part 11 are molded on the wheel hub 26 on this bearing cap 25.Armature shaft 17 has the 28(of tooth portion sun gear at it in the face of near the end of bearing cap 25), planetary gear 29 joins in this tooth portion 28, and planetary gear 29 also engages (=intermediate gearing) with the outside fixing gear ring 30 that is positioned at of planetary transmission 31.
Pinion frame 12 drives driven shaft 24, and freewheel 33 is arranged on driven shaft 24, and the inner ring 34 of freewheel 33 has protuberance 35(pinion), on this protuberance 35, be configured with outer toothed portion 36.The outer ring 37 of freewheel 33 is connected with driven shaft 24 by multiple thread 38.So-called combined spring 39 is applied on outer ring 37.By moving axially of freewheel 33, for can making outer toothed portion 36, the object of starting process engages with the ring gear 40 of internal combustion engine.This realizes by means of (connection) relay 42, and in this relay 42, electromagnet armature swings lever 44 by protuberance 43 during when making current, and lever 44 is moved to the left freewheel 33 by the chute 45 between disc 46.Lever 44 be configured to both arms and by means of being arranged in swingably with respect to the pin 48 in the fixing bearing 49 of housing.Only briefly set forth this process, because this is not emphasis of the present invention.
Fig. 2 has schematically illustrated that with stereogram band is useful on the commutator bearing 95 of the accommodation section 210 of inner bearing 200.At this, this commutator bearing is integrated into and covers in 13.Lid 13 has the through hole 94 that middle heart or middle ground are arranged, this through hole longitudinally or vertically A extends through and covers 13.Through hole 94 has circular cross section.Through hole 94 is configured for holding the parts of bearings 220 of commutator side.This parts of bearings 220 has and the corresponding section in accommodation section 210, and this section is configured to the shape complementarity with through hole 94.At this, this section has less times greater than the diameter of the interior diameter of through hole 94.Thus, in parts of bearings 220 inserts through hole 94 with respective section time, obtaining interference fit connects.In Fig. 3 to 7, illustrate in greater detail the structure of this inner bearing.
Fig. 3 schematically shows around the part of the starting device 100 of inner bearing 200 with parts transversely cutaway view.This inner bearing 200 is not on neighboring, but at the rearward end 17a of interior support armature shaft 17.For this reason, inner bearing 200 surrounds two parts of bearings 220,230, the parts of bearings 230 of armature shaft side and the parts of bearings 220 of commutator side.The parts of bearings 220 of commutator side is pressed in the accommodation section 210 of covering 13.In shown execution mode, parts of bearings 220 is configured to protuberance 223.At this, parts of bearings 220 is configured to bearing pin 221.This bearing pin 221 comprises the matrix 221a of cylindricality, and it is with acting on the section being inserted in through hole 94.The center protuberance 223 that is configured to cylindrical pin 221b at this extends towards the direction of armature shaft 17 with respect to matrix 221a with one heart along axial A.The diameter of this cylindrical pin 221b is less than matrix 221a, thereby realizes shoulder portion 222 at transition part place.These shoulder portion 222 use act on the stopper section of armature shaft 17, use acts on the thrust seamed edge 222a of armature shaft 17 or rather.By this thrust seamed edge, 222a realizes end play limiting unit.Thus, this end play limiting unit is integrated in bearing pin 221.The parts of bearings 230 of armature shaft side comprises recess 231, and it is configured to the cylindricality recess of cylindricality blind hole 221a form at this.The geometry of the geometry of blind hole 231a and cylindrical pin 221b corresponding or with its complementation.Correspondingly, in order to realize inner bearing 200, cylindrical pin 221b is pushed in recess 231.At this, be ready under the state moving, that is to say under the state after final assembling, the distolateral adjacency of shoulder portion 222 and armature shaft 17, thus shoulder portion 222 is as thrust seamed edge 222a.Blind hole 231a extends axially in direction larger on bearing of trend than cylindrical pin 221b at it, thereby leaves free space in the bottom of blind hole 231a and adjacent cylindrical pin 221b between distolateral.In shown execution mode, two parts of bearings 220,230 are configured to one.At this, bearing pin 221 is configured to solid material at this.Preferably, select the material pair of suitable bearing pin 221 and recess 231, this material pair can realize friction free operation as far as possible.On the axial direction towards armature shaft 17, matrix 221a 13 stretches out just over lid, thereby is configured to cover 13 axially spaced for the thrust seamed edge 222a of armature shaft 17.Thus, armature shaft 17 is internally supported, and wherein, by suitable bearing material, the bearing pin 221 that for example agglomerated material, plastics, hard metal are made is inserted in the blind hole 231a of armature shaft 17.Bearing pin 221b, and is pressed in final position by means of press-fit arrangement in commutator bearing 95 in the situation that finally assembling starting device.Thus, adjust the axially vertical gap of armature shaft 17 or whole armature 19.
Fig. 4 has schematically illustrated the part according to Fig. 3 under another confined state with the stereogram of laterally cutting open.Under this confined state, bearing pin 221 not yet moves in its final position that is ready to operation.But bearing pin 221 is pressed in accommodation section 210 in advance, so that the assembling of starting device 100 is more prone to.Correspondingly, not yet limit the end play of armature 19 or armature shaft 17.
The stereogram that Fig. 5 schematically laterally cuts open with another has illustrated another execution mode of inner bearing 200.Additional as to according to the inner bearing 200 of Fig. 3 and 4, this inner bearing 200 has the device 240 in ball 241 forms that reduce friction of distolateral and cylindrical pin 221b adjacency.Ball 241 is arranged between the bottom of blind hole 231a and cylindrical pin 221 distolateral in sandwich mode.At this, be used as stopper section and thus serve as the thrust seamed edge 222a for armature shaft 17 according to the ball 241 of Fig. 5.Correspondingly, the shoulder portion 222 of bearing pin 221 is no more than in the axial direction A towards armature shaft 17 covers 13 and stretches out, but is arranged in accommodation section 210.Execution mode shown in Figure 5 is being ready under the state of operation,, after final assembling, has the end play of adjusting that is.Not on armature shaft 17 distolateral but realize push stopping part on ball 241.Additionally, by ball, make with the contact site of bearing pin 221 or armature shaft 17 on friction reduce.
Fig. 6 has schematically illustrated the another execution mode of inner bearing 200 with the another stereogram of laterally cutting open.Bearing pin 221 does not have the shoulder portion 222 between matrix 221a and cylindrical pin 221b in this embodiment, thereby bearing pin 221 is configured to continuous cylindrical pin 221b.During the structural scheme of thrust seamed edge 222a is as in the embodiment according to Fig. 5, the ball 241 between the sensing armature shaft by the bottom at blind hole 231a and cylindrical pin 221b distolateral is realized like that.For being pressed into of bearing pin 221 is more prone to, assist and be pressed into by ultrasonic wave.
Fig. 7 has schematically illustrated the part of an execution mode again for the accommodation section 210 of inner bearing 200 with stereogram.This accommodation section 210 has additional otch 211 at this, and it is for auxiliary compacting, packing, bonding, soldering or melting welding.Otch 211 this be configured in not so for becoming gradually in the radial direction and radially of circular through hole 94 most advanced and sophisticated extend.At this, four otch 211 of having arranged to have rotated the mode of approximately 90 ° are set.Also can replace otch or use in combination other profile portion arbitrarily with otch 211.
Claims (10)
1. the starting device for cranking internal combustion engine (100), especially starter, described starting device comprises armature shaft (17), described armature shaft is above supported by floating ground in one end thereof (17a), it is characterized in that, is provided with inner bearing (200) in order to support described end (17a).
2. according to starting device claimed in claim 1 (100), it is characterized in that, described inner bearing (200) is configured to two-piece type, with the parts of bearings (220) of commutator bearing side and the parts of bearings (230) of armature shaft side.
3. according to the starting device described in claim 1 or 2 (100), it is characterized in that, the parts of bearings (220) of described commutator bearing side stretches in the parts of bearings (230) of described armature shaft side at least in part.
4. according to the starting device described in any one in claims 1 to 3 (100), it is characterized in that, the parts of bearings (220) of described commutator bearing side and/or the parts of bearings (230) of described armature shaft side have end play limiting unit (110).
5. according to the starting device described in any one in claim 1 to 4 (100), it is characterized in that, the parts of bearings (220) of described end play limiting unit (110) and described commutator side is configured to integrated.
6. according to the starting device described in any one in claim 1 to 5 (100), it is characterized in that, the parts of bearings (220) of described commutator side is constructed to be permeable to axially on (A), adjusting.
7. according to the starting device (100) described in any one in the claims 1 to 6, it is characterized in that, the parts of bearings (220) of described commutator side is arranged in commutator bearing (95) and/or on commutator bearing (95).
8. according to the starting device (100) described in any one in the claims 1 to 7, it is characterized in that, the parts of bearings (230) of described armature shaft side comprises that the recess (231) at center and the parts of bearings (220) of described commutator bearing side comprise the protuberance (223) at corresponding center, wherein, the protuberance at described center (223) stretches in the recess (231) at described center at least in part.
9. according to the starting device (100) described in any one in the claims 1 to 8, it is characterized in that, described inner bearing (200) at least region of in described parts of bearings (220,230) comprises the device (240) and/or the heat sink that reduce friction, to make minimise wear.
One kind for the manufacture of and/or assembling for the method for the supporting structure that reduces end play of the armature shaft (17) of the starting device (100) of cranking internal combustion engine, in particular for manufacture and/or assembling for the method for the supporting structure that reduces end play of the armature shaft (17) of the starter of cranking internal combustion engine, described starting device comprises armature shaft (17), described armature shaft is above supported by floating ground in one end thereof (17a), it is characterized in that, described end (17a) is supported in inside by means of inner bearing (200).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012222281.2A DE102012222281A1 (en) | 2012-12-05 | 2012-12-05 | Starter for cranking internal combustion engine of vehicle, has electric motor whose posterior end of armature shaft is supported by inner bearing provided in center portion of cylindrical housing |
| DE102012222281.2 | 2012-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103855843A true CN103855843A (en) | 2014-06-11 |
Family
ID=50726069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310642180.9A Pending CN103855843A (en) | 2012-12-05 | 2013-12-03 | Starter, and method for manufacturing and/or assembling armature shaft supporting structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103855843A (en) |
| DE (1) | DE102012222281A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168281A (en) * | 2015-05-22 | 2016-11-30 | 罗伯特·博世有限公司 | Speed-changing driving device and the method being used for processing speed-changing driving device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB567447A (en) * | 1943-08-09 | 1945-02-14 | Hoover Ltd | Improvements in or relating to shaft bearings and the like |
| JPH09149585A (en) * | 1995-11-22 | 1997-06-06 | Asmo Co Ltd | Bearing of rotary shaft, and its assembly method |
| US6509661B1 (en) * | 1999-01-14 | 2003-01-21 | Asmo Co., Ltd. | Motor and actuator |
| WO2010149526A2 (en) * | 2009-06-23 | 2010-12-29 | Robert Bosch Gmbh | Commutator bearing |
| CN102299605A (en) * | 2010-06-28 | 2011-12-28 | 三星电机株式会社 | Motor and record disc drive unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH97941A (en) | 1921-08-03 | 1923-02-16 | Scintilla Ag | Device for starting explosion engines by means of an electric motor. |
| DE656874C (en) * | 1935-03-07 | 1938-02-16 | Dynamit Act Ges Vormals Alfred | Plastic plain bearings |
| DE3216448A1 (en) * | 1982-05-03 | 1983-11-03 | Robert Bosch Gmbh, 7000 Stuttgart | TURNING DEVICE FOR INTERNAL COMBUSTION ENGINES |
| KR960702061A (en) * | 1993-05-12 | 1996-03-28 | 우. 그라우ㆍ페. 포르트비히 | ELECTROMOTOR-PUMP ASSEMBLY |
| DE4405367A1 (en) * | 1994-02-19 | 1995-08-24 | Licentia Gmbh | Compact sealed moisture-proof electric motor e.g. commutator motor |
| US5644180A (en) * | 1995-06-06 | 1997-07-01 | Itt Automotive Electrical Systems, Inc. | Rear motor bearing for worm gear drive motors |
| JP3725992B2 (en) * | 1999-03-24 | 2005-12-14 | 日信工業株式会社 | Motor for pump operation of anti-lock brake device for vehicle |
| FR2797109B1 (en) * | 1999-07-30 | 2001-09-14 | Valeo Equip Electr Moteur | ROTATING ELECTRIC MACHINE AND STARTER HAVING A LOW AXIAL OPERATION OF THE ARMATURE SHAFT |
-
2012
- 2012-12-05 DE DE102012222281.2A patent/DE102012222281A1/en not_active Withdrawn
-
2013
- 2013-12-03 CN CN201310642180.9A patent/CN103855843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB567447A (en) * | 1943-08-09 | 1945-02-14 | Hoover Ltd | Improvements in or relating to shaft bearings and the like |
| JPH09149585A (en) * | 1995-11-22 | 1997-06-06 | Asmo Co Ltd | Bearing of rotary shaft, and its assembly method |
| US6509661B1 (en) * | 1999-01-14 | 2003-01-21 | Asmo Co., Ltd. | Motor and actuator |
| WO2010149526A2 (en) * | 2009-06-23 | 2010-12-29 | Robert Bosch Gmbh | Commutator bearing |
| CN102299605A (en) * | 2010-06-28 | 2011-12-28 | 三星电机株式会社 | Motor and record disc drive unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168281A (en) * | 2015-05-22 | 2016-11-30 | 罗伯特·博世有限公司 | Speed-changing driving device and the method being used for processing speed-changing driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012222281A1 (en) | 2014-06-05 |
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Application publication date: 20140611 |