CN201110241Y - Transmission mechanism of starter - Google Patents
Transmission mechanism of starter Download PDFInfo
- Publication number
- CN201110241Y CN201110241Y CNU200720170734XU CN200720170734U CN201110241Y CN 201110241 Y CN201110241 Y CN 201110241Y CN U200720170734X U CNU200720170734X U CN U200720170734XU CN 200720170734 U CN200720170734 U CN 200720170734U CN 201110241 Y CN201110241 Y CN 201110241Y
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- CN
- China
- Prior art keywords
- spline
- starter
- starter motor
- driving mechanism
- end cover
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a driving mechanism of a starter, which is arranged between a front end cover and a rear end cover of the starter, a driving gear of the starter and a flywheel of an engine are engaged to drive and separate, the driving mechanism comprises a one-way clutch with splines and spline slots which are arranged on a starter shaft and are matched with the splines in a sliding mode, the number of the spline slots is more than the number of the splines, a limit device is also arranged on a position which is close to the spline slots between the spline slots and the front end cover of the starter, and the limit device limits the one-way clutch to move along the starter shaft to the front end cover of the starter through baffling the axial movement of the splines. The driving mechanism of the starter of the utility model can limit the removing distance of the one-way clutch through a limit device namely a step, which avoids that a driving gear collides the front end cover of the starter, the length of an extended shaft is not needed, the integral space of the starter is reduced, the space structure is more compact, the structure is simple, and the cost is low.
Description
Technical field
The utility model relates to a kind of starter motor, relates in particular to a kind of driving mechanism of sliding gear starter.
Background technique
Need when motor car engine enters proper functioning to realize, and the Hyundai Motor motor mostly adopts the electricity starting by external force, simple and reliable, easy to operate, also be convenient to distant control.The electricity starting is a power supply with the storage battery, is power with the direct current motor, carries out work by driving mechanism and control mechanism.Usually, direct current motor, driving mechanism and control mechanism are assembled into one, are called starter motor.Wherein, driving mechanism is the mechanism that makes starter driving gear and engine flywheel engagement driving and separate.That is: during engine start, make the engagement of actuation gear and flywheel ring gear, flywheel ring gear is passed in the torque that motor produces; After the engine start,, prevent that armature winding from damaging because of launched machine drives the hypervelocity rotation with the cut-out of getting in touch of actuation gear and flywheel ring gear.Can be smoothly when guaranteeing that actuation gear shifts out with the flywheel ring gear engagement from, need shifting out distance and control to actuation gear; In addition, because shifting out of actuation gear is powerful the dial-out, its end face has very big impact force, can cause that end cap breaks if directly run into the starter motor end cap.Therefore, existing starter motor is provided with limit stoper between actuation gear and starter motor end cap, is used to limit the distance that actuation gear shifts out, and avoids actuation gear bump end cap.
Consult Fig. 1, be the schematic representation of the driving mechanism of existing starter motor, it comprises overrunning clutch 60 and starter motor end cap.Wherein, be provided with stop ring 70 between overrunning clutch 60 and the starter motor end cap, be provided with the back-up ring 71 that is used for fixing stop ring 70 in the stop ring 70.Stop ring 70 is used to prevent the mobile position of overrunning clutch 60,, limits the distance that overrunning clutchs 60 shift out by stop ring 70 that is, and avoids overrunning clutch 70 bump end cover of engine.Yet, if when overrunning clutch 60 moves equal displacement, need be at axially-extending one segment distance of the axle 80 of starter motor, be used to install stop ring 70, therefore, increased the entire length of starter motor, and then make the spatial structure of starter motor loose, run counter to the development trend of Automobile Design; In addition, stop ring 70 needs back-up ring 71 to fix, and has also increased the manufacture cost of starter motor.
Chinese invention patent specification CN 1705819A discloses a kind of electric starter that the motor vehicle of driving mechanism are housed, and this driving mechanism comprises sleeve, gear and the separable connection set that works between sleeve and gear.Connection set is provided with the freewheel that cooperates with two series helix grooves, two series helix grooves lay respectively at that axle is gone up and the sleeve of power wheel hub on.Driving mechanism also comprises the back stop member and along the preceding stop member of axle classification, so that determine the stroke that driving mechanism slides between gear position of rest and working position.Back stop member stops ring by the elasticity in the annular positioning groove that is inserted in axle and is formed.Elasticity stops to encircle in the annular positioning groove that is inserted in axle.Locating slot is positioned at not the radially control panel of inlet, and is contracted in after the projection of retarder.Yet, this electric starter need on the axle of driving mechanism, be provided for making locating slot and driving mechanism spool groove shaft to the cross section that separates the gradually change shaft part of (taper), the front surface of locating slot and the annular stop surface relative with front surface, so that stopping annulate shaft in being locked in the control panel, complex structure, complex operation, and increased manufacture cost.
The model utility content
In view of this, need provide a kind of simple in structure, spatial structure is compact, with low cost, can limit the distance that actuation gear shifts out, avoid the driving mechanism of the starter motor of actuation gear bump end cap.
Goal of the invention of the present utility model is achieved through the following technical solutions:
A kind of driving mechanism of starter motor, be arranged between the front cover and rear end cover of starter motor, make starter driving gear with the engine flywheel engagement driving and separate, it comprises the overrunning clutch with spline and is arranged at the spline that is slidingly matched with described spline on the starter shaft, the quantity of described spline is greater than the quantity of described spline, close on the spline place between described spline and the starting machine front end cover and also be provided with limit stoper, described limit stoper by the axial motion that stops described spline limit described overrunning clutch along starter shaft to moving to starting machine front end cover.
The driving mechanism of above-mentioned starter motor, wherein: described limit stoper comprises the step that is arranged on the described starter shaft, described step has and the corresponding breach of described spline, and the part spline is connected with described breach, and the part spline is corresponding with described step; The structure that adopts the part spline to be connected with described breach when being used to assemble, making the spline of described overrunning clutch pass breach and enters spline; Adopt part spline and the corresponding structure of described step, the spline that makes described overrunning clutch is along moving with the corresponding part spline of described step, and the stroke that is meshed with engine flywheel is subjected to the restriction of step.
The driving mechanism of above-mentioned starter motor, wherein: the spline of described overrunning clutch is oblique spline, described spline tilts; Adopt the structure of oblique spline to help in the engine start process, the engagement that adds speed drive gear and flywheel with separate.
The driving mechanism of above-mentioned starter motor, wherein: the width of described breach is greater than the width of spline; When the width that adopts breach helps assembling greater than the structure of the width of spline, the entering of overrunning clutch.
The driving mechanism of above-mentioned starter motor, wherein: described breach tilts; Adopt the breach that tilts to help entering of overrunning clutch.
The driving mechanism of above-mentioned starter motor, wherein: the quantity of described spline is the integral multiple of the quantity of breach.
The driving mechanism of above-mentioned starter motor, wherein: the quantity of described spline is 2 times of quantity of breach; After adopting this structure to help keyway angle of overrunning clutch rotation,, limited by step from entering with the corresponding spline of step.
The driving mechanism of above-mentioned starter motor, wherein: on the described starter shaft, be provided with between spline and the starter motor rear end cover restriction described overrunning clutch along starter shaft to the back-up ring that moves to the starter motor rear end cover.
The driving mechanism of starter motor of the present utility model, pass through limit stoper, it is step, can limit the distance that overrunning clutch shifts out, avoid the front cover of actuation gear bump starter motor, and the length that does not need to prolong axle, the overall space of starter motor is reduced, spatial structure is compact, simple in structure, with low cost more.In addition,, avoid the rear end cover of actuation gear bump starter motor, effectively prolong the life-span of starter motor by back-up ring.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the driving mechanism schematic representation of existing starter motor.
Fig. 2 is the engagement schematic representation of the driving mechanism of the utility model starter motor.
Fig. 3 is the separated state schematic representation of the driving mechanism of the utility model starter motor.
Fig. 4 is the part schematic representation of the driving mechanism of the utility model starter motor.
Fig. 5 is that the A of Fig. 4 is to view.
Embodiment
Figure 2 shows that the engagement schematic representation of the driving mechanism of the utility model starter motor, consult Fig. 3 to Fig. 5 simultaneously, wherein, Fig. 3 is the separated state schematic representation of the driving mechanism of the utility model starter motor, Fig. 4 is the part schematic representation of the driving mechanism of the utility model starter motor, and Fig. 5 is that the A of Fig. 4 is to view.The driving mechanism of starter motor is arranged between the front cover (not shown) and rear end cover (not shown) of starter motor, the actuation gear that is used to make starter motor is with the engine flywheel engagement driving and separate, and it comprises overrunning clutch 30 with spline 31, be arranged at the spline 20, back-up ring 40 and the limit stoper that are slidingly matched with spline 31 on the starter shaft 10.Wherein, back-up ring 40 is arranged on the starter shaft 10, between spline 20 and the starter motor rear end cover, be used to limit overrunning clutch 30 along starter shaft to moving to the starter motor rear end cover.Limit stoper is arranged on the starter shaft 10 contiguous spline 20 positions, promptly be arranged between spline 20 and the starting machine front end cover, the axial motion restriction overrunning clutch 30 by stopping spline 31 along starter shaft to moving to starting machine front end cover.
In the present embodiment, overrunning clutch 30 has actuation gear (not indicating among the figure).The spline 31 of overrunning clutch 30 is oblique spline.Spline 20 tilts.Adopt the structure of oblique spline to help in the engine start process, the engagement that adds speed drive gear and flywheel with separate.
In other mode of executions of the present utility model, the spline 31 of overrunning clutch 30 also can be straight spline, and spline 20 is a straight trough.
Limit stoper comprises the step 50 that is arranged on the starter shaft 10, step 50 has and spline 31 corresponding breach 51, the quantity of spline 20 is greater than the quantity of described breach, part spline 20 is connected with breach 51, when being used to assemble, make the spline 31 of overrunning clutch 30 pass breach 51 and enter spline 20, part spline 20 is corresponding with step 50, the spline 31 that makes overrunning clutch 30 is along moving with step 50 corresponding part splines 20, and the stroke that is meshed with engine flywheel is subjected to the restriction of step 50.Promptly, during assembling, spline 31 on the overrunning clutch 30 enters the spline 20 that communicates with this breach 51 from breach 51, along starter shaft to moving to the starter motor rear end cover, after breaking away from spline 20 fully, overrunning clutch 30 is with respect to spline 20 rotations, when making the driving mechanism engagement, promptly along starter shaft to when starting machine front end cover moves, the spline 31 of overrunning clutch 30 is from entering with step 50 corresponding splines 20,, kept out to move to step 50 to starting machine front end cover along starter shaft by step 50.Therefore, limit stoper limits the distance that overrunning clutch 30 shifts out.
In the present embodiment, the quantity of breach 51 is identical with the quantity of spline 31, and the width of breach 51 is greater than the width of spline 20, when the width that adopts breach 51 helps assembling greater than the structure of the width of spline 20, and the entering of overrunning clutch 30.
In other mode of executions of the present utility model, breach 51 can tilt, and adopts the breach of inclination, helps entering of overrunning clutch 30 equally.
In addition, the quantity of spline 20 is integral multiples of the quantity of breach 51, in the present embodiment be 2 times, the quantity that adopts spline 20 is after 2 times structure of the quantity of breach 51 helps bond angle degree of overrunning clutch 30 rotations, from entering, limited by step 50 with step 50 corresponding splines 20.
In other mode of executions of the present utility model, the quantity of spline 20 also can not be the multiple of the quantity of breach 51, as long as after guaranteeing that the spline 31 of overrunning clutch 30 breaks away from spline 20 fully, with respect to spline 20 rotations, can the stroke of overrunning clutch 30 can be kept off from entering with step 50 corresponding splines 20 by step 50.
Therefore, after overrunning clutch 30 of the present utility model is installed, since back-up ring 40 and limit stoper, i.e. the existence of step 50, and overrunning clutch 30 just is restricted between limit stoper and the back-up ring 40, promptly slides along spline 20 between the stroke L.
Know clearly it, overrunning clutch from entering with step 50 corresponding splines 20,, blocked by step 50 to move to step 50 to starting machine front end cover along starter shaft, thereby step 50 plays position-limiting action under the effect of shift fork (not shown).Therefore, by the interval between control step 50 and the spline 20, the distance that shifts out in the time of just controlling overrunning clutch 30 engagements, and then limit the distance that the actuation gear of overrunning clutch 30 shifts out, and avoid actuation gear to clash into the front cover of starter motor.And when overrunning clutch 30 actuation gears separate with engine flywheel (consulting Fig. 3), back-up ring 40 can be avoided the bump of 30 pairs of starter motor rear end covers of overrunning clutch again.Therefore, overrunning clutch 30 just is restricted between step 50 and the back-up ring 40, promptly slides along spline 20 between the stroke L.
Therefore, the driving mechanism of starter motor of the present utility model, by contiguous spline 20 positions on starter shaft 10 limit stoper is set, it is step 50, make overrunning clutch 30 from entering with step 50 corresponding splines 20, along starter shaft when meshing with engine flywheel, can limit the distance that it shifts out, avoid the front cover of actuation gear bump starter motor, and do not need to prolong the length of axle 10, the overall space of starter motor is reduced, spatial structure is compact more, simple in structure, with low cost.In addition,, avoid the rear end cover of actuation gear bump starter motor, effectively prolong the life-span of starter motor by back-up ring 40.
Claims (8)
1. the driving mechanism of a starter motor, be arranged between the front cover and rear end cover of starter motor, make starter driving gear with the engine flywheel engagement driving and separate, it comprises the overrunning clutch with spline and is arranged at the spline that is slidingly matched with described spline on the starter shaft, it is characterized in that, the quantity of described spline is greater than the quantity of described spline, close on the spline place between described spline and the starting machine front end cover and also be provided with limit stoper, described limit stoper by the axial motion that stops described spline limit described overrunning clutch along starter shaft to moving to starting machine front end cover.
2. the driving mechanism of starter motor according to claim 1, it is characterized in that: described limit stoper comprises the step that is arranged on the described starter shaft, described step has and the corresponding breach of described spline, the part spline is connected with described breach, and the part spline is corresponding with described step.
3. the driving mechanism of starter motor according to claim 2, it is characterized in that: the spline of described overrunning clutch is oblique spline, described spline tilts.
4. the driving mechanism of starter motor according to claim 3, it is characterized in that: the width of described breach is greater than the width of spline.
5. the driving mechanism of starter motor according to claim 4 is characterized in that: described breach inclination.
6. the driving mechanism of starter motor according to claim 2, it is characterized in that: the quantity of described spline is the integral multiple of the quantity of breach.
7. the driving mechanism of starter motor according to claim 6 is characterized in that: the quantity of described spline is 2 times of quantity of breach.
8. according to the driving mechanism of any described starter motor of claim 1 to 7, it is characterized in that: on the described starter shaft, be provided with between spline and the starter motor rear end cover restriction described overrunning clutch along starter shaft to the back-up ring that moves to the starter motor rear end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720170734XU CN201110241Y (en) | 2007-11-13 | 2007-11-13 | Transmission mechanism of starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720170734XU CN201110241Y (en) | 2007-11-13 | 2007-11-13 | Transmission mechanism of starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110241Y true CN201110241Y (en) | 2008-09-03 |
Family
ID=39894771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720170734XU Expired - Lifetime CN201110241Y (en) | 2007-11-13 | 2007-11-13 | Transmission mechanism of starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110241Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023585A (en) * | 2016-02-02 | 2017-08-08 | 罗伯特·博世有限公司 | Spline connection structure and the engine starting motor including it |
-
2007
- 2007-11-13 CN CNU200720170734XU patent/CN201110241Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023585A (en) * | 2016-02-02 | 2017-08-08 | 罗伯特·博世有限公司 | Spline connection structure and the engine starting motor including it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |