CN103423059B - Vehicle starter and drive gear assemblies thereof - Google Patents
Vehicle starter and drive gear assemblies thereof Download PDFInfo
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- CN103423059B CN103423059B CN201210164685.4A CN201210164685A CN103423059B CN 103423059 B CN103423059 B CN 103423059B CN 201210164685 A CN201210164685 A CN 201210164685A CN 103423059 B CN103423059 B CN 103423059B
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Abstract
Disclosing a kind of vehicle starter and drive gear assemblies thereof, described drive gear assemblies includes: the driving gear being made of metal, its have axially through endoporus, described endoporus is formed with spline；And shift fork actuator, it has general cylindrical shape body and be located at the grasping part of described body front end, and described shift fork actuator is attached to the rear end of described driving gear by described grasping part.Also disclose a kind of vehicle starter comprising this drive gear assemblies.This drive gear assemblies contributes to reducing weight and cost.
Description
Technical field
The present invention relates to a kind of drive gear assemblies in vehicle starter and the vehicle starter comprising this drive gear assemblies.
Background technology
Modern vehicle generally uses electric starter motor to start the electromotor of vehicle, and the electric energy that vehicle battery stores is changed into mechanical energy by starter, drives the electromotor operating of vehicle, to be started by electromotor.
Starter is generally made up of motor, drive mechanism and controlling organization etc..Showing a part for a kind of existing vehicle starter in Fig. 1, wherein, motor 1 is arranged in the housing 2 of starter, is used for producing turning moment.The gear ring (not shown) that this turning moment is delivered on engine flywheel by drive mechanism, drives the bent axle of electromotor to rotate.
Drive mechanism mainly includes the reducing gear 3 being connected with the output shaft of motor 1, the output shaft 5 being connected by freewheel clutch 4, the driving teeth parts 6 that are set on output shaft 5 with reducing gear 3.Output shaft 5 is rotatable but is not axially movable.
Wherein, driving the front portion of teeth parts 6 to be supported on the optical axis portion of output shaft 5 by axle sleeve 7, rear portion is coupled with the matching spline portion on output shaft 5 by spline part 8.Spline part 8 can slide axially relative to matching spline portion (in the case of using screw key tooth, spline part 8 rotates relative to matching spline portion while sliding axially), to realize moving axially of output shaft 5.This axially-movable is to be realized by the shift fork 9 of controlling organization.The middle part of shift fork 9 can pivot around a pivot, and the outer end of shift fork 9 can be by controlling organization approximately along the axial push-and-pull of output shaft 5, and the inner of shift fork 9 is held on driving teeth parts 6.Outer end by controlling organization push-and-pull shift fork 9 vertically, so that shift fork pivots around described pivot, the inner of shift fork drives output shaft 5 to move axially (spline part 8 slides axially) relative to matching spline portion, so that driving teeth parts 6 engage with the gear ring on engine flywheel and depart from.
Fig. 2 shows driving teeth parts 6 used in Fig. 1, its metal structure being integrated, including anterior gear part 11 and the shift fork drive division 12 at rear portion, wherein, gear part 11 is for engaging with the gear ring on engine flywheel, and shift fork drive division 12 is provided with the inner draw-in groove for accommodating shift fork 9.
According to the structure shown in Fig. 2, driving teeth parts 6 to be formed with gear part integral with one another and shift fork drive division, this makes the weight driving teeth parts increase.Meanwhile, the weight increase of teeth parts 6 causes the load of the solenoid in controlling organization to increase.
Additionally, spline part 8 is formed in the rear portion driving teeth parts 6, i.e. it is positioned in shift fork drive division, and near driving the rear end face of teeth parts.Therefore, when shift fork 9 drives and drives teeth parts 6 to move forward, a part will be exposed by the matching spline portion on output shaft 5, and this makes this part (especially going up grease thereon) in matching spline portion easily be dirty.
Additionally, due to whole driving teeth parts are made of metal, when driving teeth parts to rotate, the inner of shift fork 9 can be by abrasion.
Accordingly, it is desirable to be able to above-mentioned various problems relevant with driving teeth parts present in solution prior art.
Summary of the invention
It is an object of the invention to the driving teeth parts in vehicle starter are made improvement, to eliminate or to alleviate at least some solved present in prior art in aforementioned relevant issues.
According to an aspect of the invention, it is provided a kind of drive gear assemblies in vehicle starter, including the driving gear being made up of metal material, its have axially through endoporus, described endoporus is formed with spline；And it being less than, by proportion, the shift fork actuator that the material of described metal material is made, it has general cylindrical shape body and is located at the grasping part of described body front end, and described shift fork actuator is attached to the rear end of described driving gear removably by described grasping part.
A preferred embodiment of the invention, described shift fork actuator is made of plastics.Described plastics can be the nylon of fibre reinforced plastics, such as glass fiber reinforcement.
A preferred embodiment of the invention, described grasping part has the structure allowing to drive gear to rotate relative to shift fork actuator around the central axis of described drive gear assemblies.
A preferred embodiment of the invention, described shift fork actuator has for the inner of the shift fork in starter is placed in accommodation space therein, is provided with and inner cooperation of shift fork and the backstop that stops described shift fork actuator to rotate relative to described shift fork around the central axis of described drive gear assemblies in described accommodation space.
A preferred embodiment of the invention, described grasping part include at least two being formed on the body of described shift fork actuator can diametrically elastic deformation with realize shift fork actuator to drive gear dismounting gripping section, each gripping section is respectively formed with jaw, and described jaw is hooked on the Part I of described driving gear.
A preferred embodiment of the invention, described grasping part also includes that the relying part being formed on the body of described shift fork actuator, described relying part bear against the Part II of described driving gear to realize shift fork actuator relative to the axial location driving gear.
A preferred embodiment of the invention, described driving gear has annular protrusion and is positioned at the flange on rear side of described annular protrusion, annular space is limited between described annular protrusion and described flange, described flange constitutes the described Part I by described jaw hook of described driving gear, and described annular protrusion constitutes the described Part II rested against by described relying part of described driving gear.
A preferred embodiment of the invention, described shift fork actuator have be formed in described general cylindrical shape body axially through endoporus, the described flange of described driving gear is placed in the endoporus of described shift fork actuator, and forms matched in clearance between the endoporus of described flange and described shift fork actuator.
A preferred embodiment of the invention, described shift fork actuator also has from the radially projecting lordosis edge of described general cylindrical shape body and rear flange portion, limiting the annular space of the described accommodation space of composition between described lordosis edge and rear flange portion, the both sides of the general cylindrical shape body that the inner of described shift fork is included in described shift fork actuator are placed in a pair holder in described accommodation space；And, described backstop includes being formed on the general cylindrical shape outer body of described shift fork actuator and a pair flat segments facing with the pair of holder, and the pair of flat segments stops described shift fork actuator to rotate relative to described shift fork around the central axis of described drive gear assemblies by contacting with the pair of holder.
A preferred embodiment of the invention, described shift fork actuator also has and extends the reinforcement between described lordosis edge and rear flange portion at general cylindrical shape outer body.
A preferred embodiment of the invention, in the rear portion of the endoporus that described spline is formed at described driving gear, and, equipped with axle sleeve in the front portion of the endoporus of described driving gear.
According to a further aspect in the invention, it is provided that a kind of vehicle starter, including motor；The drive mechanism being connected with the output shaft of motor, described drive mechanism has output shaft and the foregoing drive gear assemblies carried by described output shaft；And controlling organization, it controls described motor and the operation of drive mechanism.
According to the present invention, the drive gear assemblies in vehicle starter is by driving gear and being attached to drive the shift fork actuator of gear rear end to form.Shift fork actuator is not with driving gear to rotate, therefore, and the inner of the shift fork that will not wear and tear as prior art, thus contribute to extending the service life of drive gear assemblies.Meanwhile, when driving gear to break down, it is only necessary to change and drive gear itself, and shift fork actuator may still can use.As such, it is possible to reduce the maintenance cost of drive gear assemblies.
In addition, shift fork actuator can be made up less than the materials such as plastics of described metal material of proportion, therefore, compares compared with one-piece drive gear element in technology, the weight of the drive gear assemblies of the present invention can reduce, and the load of the solenoid in controlling organization also can reduce.
Additionally, according to the present invention, spline part is formed in driving gear, and drives the rear end of gear to be attached shift fork actuator.So, when drive gear assemblies is moved forward by shift fork, the part that matching spline portion on the output shaft of drive mechanism exposes from driving gear is still surrounded by shift fork actuator, this part that so can be effectively prevented matching spline portion is dirty, thus further helps in the service life extending drive gear assemblies.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram according to the part in the vehicle starter of prior art.
Fig. 2 is the schematic cross sectional views driving teeth parts used in Fig. 1.
The sectional view that Fig. 3 is made along its axis according to a kind of drive gear assemblies of the present invention.
Fig. 4 is the sectional view driving gear to be made along its axis in the drive gear assemblies in Fig. 3.
Fig. 5 is the sectional view that the shift fork actuator in the drive gear assemblies in Fig. 3 is made along its axis.
Fig. 6 is the sectional view made along the A-A direction in Fig. 5.
Fig. 7 is the left view of the shift fork actuator in Fig. 5.
Fig. 8 is the schematic diagram of the shift fork actuator in Fig. 5 and the state during combination of shift fork the inner.
Detailed description of the invention
Some preferred implementations of the present invention are described with reference to the accompanying drawings.
Showing according to the drive gear assemblies in the vehicle starter of a preferred embodiment of the present invention in Fig. 3, it can be used to replace Fig. 1, the driving teeth parts 6 shown in 2.Unless specifically indicated otherwise, otherwise above it is also applied for following the present invention being described with reference to the details described by Fig. 1,2 pairs of vehicle starter.
As it can be seen, the drive gear assemblies of the present invention is by driving gear 20 and being attached to the general cylindrical shape at this driving gear rear portion in the way of hook or annular shift fork actuator 40 forms.Fig. 4 show separately driving gear 20, Fig. 5-7 show separately shift fork actuator 40.
Firstly the need of pointing out, so-called in the application " afterwards ", " front " referred to the direction of that side of gear ring on motor, close engine flywheel for limiting the direction of that side of motor in vehicle starter.
Drive gear 20 for engaging with the gear ring on engine flywheel.Drive gear 20 can be made up of metal material such as structural steel.The periphery driving gear 20 is formed with a number of tooth 22.Described tooth can be straight-tooth or helical teeth, extends back from the front end driving gear 20, and terminates at the annular protrusion 24 driving gear 20.Described annular protrusion 24 is connected after described tooth 22, and its external diameter is more than the tooth top diameter of a circle limited by the tooth top of these teeth 22.
Annular protrusion 24 has front surface 24a and rear surface 24b.This front surface 24a is preferably the form of frusto-conical face but it also may be perpendicular to drive the planar annular of gear centre axis.24b preferably being perpendicular to shown in figure in this rear surface drives the planar annular of gear centre axis but it also may be the frusto-conical face of concave or convex.
Formed behind in annular protrusion 24 has the cylindrical shape extension 26 extended back, and the external diameter of this cylindrical shape extension 26 is significantly less than the external diameter of annular protrusion 24, it might even be possible to less than the tip diameter of the tooth 22 driving gear 20.
It is formed with the flange 28 projected radially outwardly in the rear end of cylindrical shape extension 26, between the rear surface 24b of flange 28 and annular protrusion 24, thus limits the annular space 30 around periphery, cylindrical shape extension 26.
Drive gear 20 be internally formed axially through endoporus, this endoporus include front portion the first endoporus section 32 and the second endoporus section 34 at rear portion.Axle sleeve (sliding bearing) 7 is fixed in the first endoporus section 32, such as Fig. 3, the front portion being positioned at the first endoporus section 32 shown in 4.On the optical axis portion of the output shaft that this axle sleeve 7 is set in the drive mechanism of starter.The diameter of the second endoporus section 34 is more than the first endoporus section 32, thus forms the rearward step in face 36 between.Described output shaft at optical axis portion increased diameter section formed behind, thus can form the step of face forward between, and this step can be pushed against by step 36, to limit the extreme position being moved rearwards by driving gear 20.
Spline part 8 be formed at the second endoporus section 34 axially at least some of in, for coupling with the matching spline portion on the increased diameter section being formed at output shaft.
Shift fork actuator 40 such as can be made by injection moulding by proportion less than the element driving the materials such as plastics of gear material to make.Plastics can be highstrenghtpiston, such as fibre reinforced plastics.As a kind of preferred implementation, shift fork actuator 40 is made up of nylon, the nylon (for example, containing the nylon of 30 ~ 35% glass fibre) of such as glass fiber reinforcement.
As shown in Fig. 3,5-8, shift fork actuator 40 has general cylindrical shape body 42 and end is radially projecting before and after body 42 lordosis edge 44 and rear flange portion 46.Lordosis edge 44 and rear flange portion 46 are preferably perpendicular to the form of the general toroidal flat board of the central axis of shift fork actuator 40, and the two has roughly equal external diameter, and limits therebetween annular accommodation space 48.
Shift fork actuator 40 be internally formed axially through endoporus, this endoporus includes anterior endoporus section 50 and rear portion endoporus section 52.The internal diameter of rear portion endoporus section 52 is more than anterior endoporus section 50.
In the front end of shift fork actuator 40, it is formed with one group of gripping section 54 of projection forward.These gripping section 54 quantity are at least two, preferably five to seven, such as six shown in figure.These gripping sections 54 are symmetrical preferably about the central axis of shift fork actuator 40.In being perpendicular to the cross section of central axis of shift fork actuator 40, each gripping section limits an arc section, the inner peripheral surface of these gripping sections constitutes the extension forward of the inner peripheral surface of anterior endoporus section 50, the inner peripheral surface of the inner surface restriction of these gripping sections and the inner peripheral surface equal diameters of anterior endoporus section 50.In the front end of each gripping section 54, it is respectively formed with the jaw 56 extended radially inwardly.
Gripping section 54 has elastic deformability the most diametrically.To this end, so that the radial thickness of gripping section 54 is less than body 42.Additionally, be formed with axially extended slit 64 between adjacent gripping section 54.
The front surface of lordosis edge 44 is formed the general cylindrical shape section of resting against 58 of projection forward, described in the section of resting against 58 round described one group of gripping section 54, and axially projection distance more than these gripping sections 54.The flange 60 that the front end of the described section of resting against 58 can be formed radially outward and/or extend internally.
The ring segment 62 of projection axially backward it is formed with in the periphery in rear flange portion 46.When drive gear assemblies is moved rearwards by, described ring segment 62 and/or rear flange portion 46 can be connected on the corresponding site of starter housing, to contribute to stoping drive gear assemblies to move further back.
In order to be combined to shift fork actuator 40 drive on gear 20, the front end of shift fork actuator 40 is pushed toward each other with the rear end driving gear 20, so that driving the flange 28 of gear 20 to touch jaw 56, and by the radially outer elastic deformation of jaw 56, they are outwards strutted, thus flange 28 enters in anterior endoporus section 50, and jaw 56 enters in the annular space 30 of shift fork actuator 40.So, jaw 56 is hooked in flange 28, the section of resting against 58(flange 60) push against the rear surface 24b in annular protrusion 24, thus be connected to shift fork actuator 40 in the way of hook drive the rear portion of gear 20 to form drive gear assemblies, as shown in Figure 3.The section of resting against 58 is possible to prevent shift fork actuator 40 to move axially forward relative to driving gear 20.Shift fork actuator 40 and the central axis conllinear driving gear 20, thus limit the central axis of drive gear assemblies.It is appreciated that the elastic deformability of jaw 56 also makes shift fork actuator 40 can pull down from driving gear 20.
At shift fork actuator 40 with under the assembled state driving gear 20, the central axis around drive gear assemblies is allowed therebetween to rotate against.Matched in clearance is formed between (or inner surface of anterior endoporus section 50) limits to this end, the inner surface of each gripping section 54 of shift fork actuator 40 inner peripheral surface and the outer surface of flange 28.
The inner peripheral surface limited due to the inner surface of each gripping section 54 limits same inner peripheral surface with the inner peripheral surface of anterior endoporus section 50, and therefore this inner peripheral surface needs to process higher dimensional accuracy.Anterior endoporus section 50 and the diameter rear portion endoporus section 52 more than anterior endoporus section 50 is separated, it is not necessary to the whole axial length of the anterior endoporus section 50 in edge is with high accuracy processing endoporus, such that it is able to reduce manufacturing cost in the endoporus of shift fork actuator 40.
Certainly, the endoporus of shift fork actuator 40 can also only have single internal diameter, and does not separate front and rear part endoporus section.
The diameter of the bore section (or anterior endoporus section 50) coordinated with flange 28 of shift fork actuator 40 is preferably 15 to 20mm.
In addition, in order to allow shift fork actuator 40 and drive rotating against between gear 20, static state in drive gear assemblies, the state that i.e. drive gear assemblies is not stirred by the shift fork of starter controlling organization, jaw 56 and the section of resting against 58(flange 60) should be sufficiently small to the thrust of the rear surface 24b applying of flange 28 and annular protrusion 24, it might even be possible to it is zero.
It is appreciated that jaw 56 and the section of resting against 58 constitute shift fork actuator 40 to driving detachable grasping part attached on gear 20.It is appreciated that the grasping part of other form, the most dismountable or permanent, it is also possible to for shift fork actuator 40 being connected to driving gear 20.
Such as, as a kind of embodiments possible, in the case of jaw 56 itself will be enough to be connected to shift fork actuator 40 drive gear 20, i.e. guaranteeing have therebetween enough bonding strengths and prevent the two from moving axially relatively (or allowing the two to move axially relatively a small distance), the section of resting against 58 can be omitted.
Additionally, in the example above, grasping part is the integral part of shift fork actuator 40.But, as another kind of embodiments possible, grasping part can be independent component separate with shift fork actuator 40, and it can grasp between the front end of shift fork actuator 40 and the rear end driving gear 20, and realizes the function identical with the grasping part of aforementioned one.
As shown in Figure 6, and with reference to Fig. 7,8, on the periphery of the general cylindrical shape body 42 of shift fork actuator 40, be formed with diametrically or multipair flat segments 66.Between lordosis edge 44 and rear flange portion 46 that described flat segments 66 extends, it is parallel to the central axis of shift fork actuator 40.The two ends of each flat segments 66 can stretch out a bit of from the periphery of body 42, to form evagination section 68.Every pair of flat segments 66 has the most rightabout flat outer surface 66a.
Additionally, on the periphery of the general cylindrical shape body 42 of shift fork actuator 40, be also formed with diametrically or multipair reinforcement 70.Between lordosis edge 44 and rear flange portion 46 that described reinforcement 70 extends, for improving the intensity of shift fork actuator 40.On the circumferencial direction of general cylindrical shape body 42, reinforcement 70 can be located at the position between flat segments 66.
Shift fork actuator 40 is for being moved forward and backward by the driving of the shift fork of starter controlling organization.Fig. 8 shows the assembled relation of shift fork 9 and shift fork actuator 40.As it can be seen, the inner of shift fork 9 has a pair branch 9a, the end of each branch 9a has substantial cylindrical holder 9b, such as pin or roller.This pair holder 9b extends internally from the end of the pair of branch 9a.The branch 9a and holder 9b of both sides are symmetrical arranged.
The pair of holder 9b inserts in the annular accommodation space 48 of shift fork actuator 40, so that each holder 9b is substantially facing to flat outer surface 66a of corresponding flat segments 66 of shift fork actuator 40.
The diameter of each holder 9b is equal to or slightly less than the axial width of annular accommodation space 48, and the distance between the radial inner end of a pair holder 9b is equal or slightly larger than the distance between flat outer surface 66a of corresponding a pair flat segments 66.So, under assembled state shown in Fig. 8, holder 9b can not move or be only capable of the least mobile distance in annular accommodation space 48 axially and or radially relative to shift fork actuator 40.So, when driving gear 20 to rotate, by contacting between a pair holder 9b and corresponding a pair flat segments 66, shift fork actuator 40 can be stoped with driving gear 20 to rotate.
Stop shift fork actuator 40 with the backstop driving gear 20 to rotate by coordinating with the inner of shift fork 9 (holder 9b) it can be seen that flat segments 66 constitutes.However, it is to be appreciated that the backstop being capable of other form of identical function can also use.
Such as, the annular accommodation space 48 limited between lordosis edge 44 and rear flange portion 46 in previous examples may alternatively be two sockets diametrically on general cylindrical shape body 42, for a pair holder of shift fork is inserted and be limited to wherein.In this case, socket itself has the function of aforementioned backstop simultaneously.
When starter operates, drive gear 20 to be output axle 5 and drive and rotate, and shift fork actuator 40 is not rotated with by the constraint of shift fork 9.So, drive and between gear 20 and shift fork actuator 40, there is relative rotary motion, and this relative rotary motion can produce frictional force in contact site between.By suitably setting the dimensional fits relation of the contact site driving gear 20 and shift fork actuator 40, this frictional force can be limited within the acceptable range.
If it is necessary, the frictional force of the contact site in order to suppress shift fork actuator 40 and driving gear 20, lubricant can be applied at contact site between.Or, the plastics (at least at it and drive the position that contacts of gear 20) making shift fork actuator 40 can be self-lubricating type plastics.
According to the present invention, the drive gear assemblies in vehicle starter is by driving gear and being attached to drive the shift fork actuator of gear rear end to form.The material proportion of shift fork actuator is less than driving gear, therefore, compare compared with one-piece drive gear element in technology, in the case of there is same axial length, the weight of the drive gear assemblies of the present invention can be substantially reduced, and the load of the solenoid in controlling organization also can correspondingly reduce.
Additionally, according to the present invention, shift fork actuator with driving gear to rotate, i.e. will not rotate relative to shift fork, therefore, the inner of the shift fork that will not wear and tear as prior art.
Additionally, according to the present invention, spline part is formed in driving gear, and drives the rear end of gear to be attached shift fork actuator.So, when drive gear assemblies is moved forward by shift fork, matching spline portion on the output shaft of drive mechanism is from driving the part exposed gear still to be surrounded by shift fork actuator, and this part (especially going up grease thereon) that so can be effectively prevented matching spline portion is made dirty by external substance such as dust.As such, it is possible to extend the service life of drive gear assemblies.
Additionally, according to the present invention, when driving gear to collapse tooth or other fault and to need to change, it is only necessary to change and drive gear itself, and shift fork actuator may remain to use.As such, it is possible to reduce the maintenance cost of drive gear assemblies.
Although describing the present invention herein with reference to some specific embodiments, but these embodiments being only be given in an illustrative manner, and the scope of the present invention is not construed as limiting.The scope of claim and equivalent thereof is intended to the amendment making these embodiments that all that falls within the spirit and scope of the invention, replaces and change.
Claims (13)
1. the drive gear assemblies in vehicle starter, including:
The driving gear being made up of metal material, its have axially through endoporus, described endoporus is formed with spline；And
Being less than, by proportion, the shift fork actuator that the material of described metal material is made, it has general cylindrical shape body and is located at the grasping part of described body front end, and described shift fork actuator is attached to the rear end of described driving gear removably by described grasping part；
Wherein, described grasping part include at least two being formed on the body of described shift fork actuator can diametrically elastic deformation with realize shift fork actuator to drive gear dismounting gripping section, each gripping section is respectively formed with jaw, and described jaw is hooked on the Part I of described driving gear.
2. drive gear assemblies as claimed in claim 1, wherein, described shift fork actuator is made of plastics.
3. drive gear assemblies as claimed in claim 2, wherein, described plastics are fibre reinforced plastics.
4. drive gear assemblies as claimed in claim 2, wherein, described plastics are the nylon of glass fiber reinforcement.
5. the drive gear assemblies as according to any one of Claims 1-4, wherein, described grasping part has the structure allowing to drive gear to rotate relative to shift fork actuator around the central axis of described drive gear assemblies.
6. the drive gear assemblies as according to any one of Claims 1-4, wherein, described shift fork actuator has for the inner of the shift fork in starter is placed in accommodation space therein, is provided with and inner cooperation of shift fork and the backstop that stops described shift fork actuator to rotate relative to described shift fork around the central axis of described drive gear assemblies in described accommodation space.
7. the drive gear assemblies as according to any one of Claims 1-4, wherein, described grasping part also includes that the relying part being formed on the body of described shift fork actuator, described relying part bear against the Part II of described driving gear to realize shift fork actuator relative to the axial location driving gear.
8. drive gear assemblies as claimed in claim 7, wherein, described driving gear has annular protrusion and is positioned at the flange on rear side of described annular protrusion, annular space is limited between described annular protrusion and described flange, described flange constitutes the described Part I by described jaw hook of described driving gear, and described annular protrusion constitutes the described Part II rested against by described relying part of described driving gear.
9. drive gear assemblies as claimed in claim 8, wherein, described shift fork actuator have be formed in described general cylindrical shape body axially through endoporus, the described flange of described driving gear is placed in the endoporus of described shift fork actuator, and forms matched in clearance between the endoporus of described flange and described shift fork actuator.
10. drive gear assemblies as claimed in claim 6, wherein, described shift fork actuator also has from the radially projecting lordosis edge of described general cylindrical shape body and rear flange portion, limiting the annular space of the described accommodation space of composition between described lordosis edge and rear flange portion, the both sides of the general cylindrical shape body that the inner of described shift fork is included in described shift fork actuator are placed in a pair holder in described accommodation space；And
Described backstop includes being formed on the general cylindrical shape outer body of described shift fork actuator and a pair flat segments facing with the pair of holder, and the pair of flat segments stops described shift fork actuator to rotate relative to described shift fork around the central axis of described drive gear assemblies by contacting with the pair of holder.
11. drive gear assemblies as claimed in claim 10, wherein, described shift fork actuator also has and extends the reinforcement between described lordosis edge and rear flange portion at general cylindrical shape outer body.
12. drive gear assemblies as according to any one of Claims 1-4, wherein, in the rear portion of the endoporus that described spline is formed at described driving gear, and, equipped with axle sleeve in the front portion of the endoporus of described driving gear.
13. 1 kinds of vehicle starter, including:
Motor；
The drive mechanism being connected with the output shaft of motor, described drive mechanism has output shaft and the drive gear assemblies carried by described output shaft；And
Controlling organization, it controls described motor and the operation of drive mechanism；
Wherein, described drive gear assemblies is the drive gear assemblies as according to any one of claim 1 to 12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210164685.4A CN103423059B (en) | 2012-05-24 | 2012-05-24 | Vehicle starter and drive gear assemblies thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210164685.4A CN103423059B (en) | 2012-05-24 | 2012-05-24 | Vehicle starter and drive gear assemblies thereof |
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| CN103423059A CN103423059A (en) | 2013-12-04 |
| CN103423059B true CN103423059B (en) | 2016-08-03 |
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| CN201210164685.4A Active CN103423059B (en) | 2012-05-24 | 2012-05-24 | Vehicle starter and drive gear assemblies thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732498A1 (en) * | 1995-03-15 | 1996-09-18 | Valeo Equipements Electriques Moteur | Starter for automotive vehicle provided with improved giving means of the pinion shifting arrangement |
| CN1162695A (en) * | 1996-03-08 | 1997-10-22 | 瓦莱奥电机设备公司 | Automotive igniter with small size gear and without free-wheel |
| CN201041126Y (en) * | 2007-06-07 | 2008-03-26 | 锦州汉拿电机有限公司 | Starter control apparatus |
| CN202579002U (en) * | 2012-05-24 | 2012-12-05 | 博世汽车部件(长沙)有限公司 | Vehicle starter and driving gear assembly thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7677123B2 (en) * | 2006-10-13 | 2010-03-16 | Denso Corporation | Impact absorbing device |
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2012
- 2012-05-24 CN CN201210164685.4A patent/CN103423059B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732498A1 (en) * | 1995-03-15 | 1996-09-18 | Valeo Equipements Electriques Moteur | Starter for automotive vehicle provided with improved giving means of the pinion shifting arrangement |
| CN1162695A (en) * | 1996-03-08 | 1997-10-22 | 瓦莱奥电机设备公司 | Automotive igniter with small size gear and without free-wheel |
| CN201041126Y (en) * | 2007-06-07 | 2008-03-26 | 锦州汉拿电机有限公司 | Starter control apparatus |
| CN202579002U (en) * | 2012-05-24 | 2012-12-05 | 博世汽车部件(长沙)有限公司 | Vehicle starter and driving gear assembly thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103423059A (en) | 2013-12-04 |
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Effective date of registration: 20180508 Address after: No. 26 Lixiang Middle Road, Changsha economic and Technological Development Zone, Hunan Patentee after: Thorne (China) lattice Auto Parts Co., Ltd. Address before: 410100 No. 26 Lixiang Middle Road, Changsha economic and Technological Development Zone, Hunan Co-patentee before: Robert Bosch Ltd. Patentee before: Bosch Automotive Products (Changsha) Co., Ltd. |
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