CN1162695A - Automotive igniter with small size gear and without free-wheel - Google Patents
Automotive igniter with small size gear and without free-wheel Download PDFInfo
- Publication number
- CN1162695A CN1162695A CN 97103054 CN97103054A CN1162695A CN 1162695 A CN1162695 A CN 1162695A CN 97103054 CN97103054 CN 97103054 CN 97103054 A CN97103054 A CN 97103054A CN 1162695 A CN1162695 A CN 1162695A
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- Prior art keywords
- small gear
- drive socket
- lining
- transmission device
- starter motor
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- 239000007858 starting material Substances 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 33
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- 238000013519 translation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000035772 mutation Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000014616 translation Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Disclosed is a car starter, which is provided with a gearing (16). The gearing moves axially on a shaft to mesh a pinion (18) with a gear of a car heat engine. The gearing (16) is provides with a drive sleeve (24) which is rotatablely connected on the shaft through a spline (38). A connecting bush (40) is inserted between the drive sleeve (24) and the pinion (18). And the connecting bush (40) shifts flatly and is connected rotatablely with the drive sleeve (24) and the pinion (18).
Description
The present invention relates to the automobile starter that has pinion mate and do not have freewheel.
The invention particularly relates to the automobile starter of following type: have a motor, the motor shaft of motor drives transmission device around its longitudinal axis rotation, transmission device moves axially on motor shaft, so that be configured in the gear engagement of the small gear and the tide of motorism force engine of transmission device front end; The transmission device rear end has one by be rotatably connected drive socket on motor shaft of spline; Moving axially of transmission device by two fork controls that forward and backward radially outer convex shoulder matches with transmission device.
Common starter motor is fitted with a freewheel between small gear and drive socket.
The main effect of this freewheel is to avoid when heat engine starts, and the small gear of transmission device drives starter motor with the excessive rotating speed that may damage starter motor.
In addition, generally adopt the roller mechanism freewheel, it can alleviate the sudden change of the moment of transmitting between drive socket and small gear.
In fact, when engine start, because the periodic compression power of gas in the cylinder, the resisting moment that heat engine applies alters a great deal when bent axle turns around.The advantage of roller mechanism freewheel is can alleviate above-mentioned nonuniformity by means of its distortion elasticity, reduces to impose on the mechanical stress and thereby the noise that causes of the cyclic irregularity that produces of starter motor.
Novel starter motor uses the electronic control module of motor, but latter's automatic cut-off motor power supply can draw back transmission device no longer the position of rest that the flywheel with heat engine meshes simultaneously.Therefore, this starter motor no longer needs freewheel, and this helps reducing the weight and the size of starter motor and reduces its cost.
But, cancelled this freewheel and also just cancelled the function that suppresses nonuniformity, this impairs the mechanical property and the operational noise of starter motor.
For easy and head it off effectively, the present invention proposes a kind of starter motor of the above-mentioned type, it is characterized in that: the connection lining of a longitudinal axis of plug-in mounting between drive socket and small gear; Connect lining with respect to drive socket and fixing with respect to small gear translation and rotation; Connecting lining can be around the flexible distortion of its longitudinal axis, with constitute one can resiliently deformable under the mutation effect of the moment of transmitting between drive socket and small gear the distortion damper.
According to another feature of the present invention:
-small gear has a central bore, it is slidingly mounted on the motor shaft, connect the cylindrical seat that lining is arranged in the central bore of small gear at least in part, connect the front end of lining and the inside and outside surface separately of seat and have complementary cannelure, be rotatably connected in order to guarantee connection lining and small gear;
-small gear has a circular groove, and the ring rib that connects lining is arranged in groove, and translation is connected with small gear so that connect lining;
-small gear is a metal, is molded as by backed stamper with plastics and connect lining;
-drive socket is made of plastic, and connection lining and drive socket are made with same material;
-the outer radial convex shoulder and the drive socket of transmission device are made with same plastic materials at least;
-drive socket has one and is molded in the linkage section on the axial end behind the small gear with backed stamper, linkage section has a transverse annular plate, the latter constitutes the preceding radially outer convex shoulder of transmission device, transverse plate has a tubulose prolonged section in its outer periphery, the latter axially has an interior ring rib on the interior cylindrical wall of extension and one forward, interior ring rib is located in the circular groove of opening on the exterior cylindrical surfaces of small gear rear end, and translation is connected so that drive socket is with small gear;
The preceding radially convex shoulder of-transmission device is made of the back landscape surface of small gear;
-connecting lining and have a ring rib, the latter is located in the groove of opening on the inner cylindrical surface of central bore of small gear;
-after radially convex shoulder constitute by the transverse annular packing ring that is attached on the drive socket;
The transverse annular packing ring of-drive socket and formation back convex shoulder links to each other when using backed stamper molded;
-ring washer comprises a sleeve pipe, and the latter extends axially and cooperates with drive socket, is configured for limiting the reinforcer of drive socket radial deformation.
Further feature of the present invention and advantage are consulted following detailed description, for ease of understanding, with reference to accompanying drawing.In the accompanying drawing:
-Fig. 1 is the axial partial sectional view of starter motor of the present invention;
-Fig. 2 is the axial sectional view of the transmission device of starter motor of the present invention;
-Fig. 3 is the horizontal half sectional view along 3-3 line among Fig. 2 of this transmission device;
-Fig. 4 is an axial sectional view of implementing modification of transmission device.
Figure 1 shows that a kind of automobile starter 10, it mainly comprises a motor 12, the longitudinal axis A of motor 12
1On motor shaft 14 at its preceding axial end a transmission device 16 is housed.
As everyone knows, moving axially by shift fork 20 of transmission device 16 controlled, and shift fork 20 passes through one round axis of pitch A
2Basic core hinged, and its first end has two parallel actuating linkages 22, the latter extends on the landscape surface of drive socket 24 both sides that are positioned at transmission device 16 rear ends.
The rotation of shift fork 20 is inhaled the operating handle of iron switch 30 and the opposite end 32 of vertical lever 22 1 ends of shift fork 20 ribbon gymnastics and is linked to each other by inhaling 30 controls of iron switch.
The drive socket 24 of transmission device 16 mainly contains a tubular shell 34, and the latter's cylindrical form interior surface 36 has spline 38, with spline fitted corresponding on the starter motor axle 14, transmission device 16 is rotatably connected on motor 12.
Spline 38 can be the helical spline, so that transmission device 16 returns it and retreats position of rest when the starting of the heat engine of automobile.
According to the present invention, drive socket 24 and small gear 18 translations and be rotatably connected and plug-in mounting freewheel not.
Be provided with one for this reason and connect lining 40, connect lining 40 and be plugged between drive socket 24 and the small gear 18, among the embodiment shown in the figure, it and drive socket 24 usefulness same materials are made.
Connecting lining 40 is tubular liner.It axially prolongs the housing 34 of drive socket 24 forward.It is arranged in central bore 42, and central bore 42 is arranged in the small gear housing 44 that the axial end front is provided with the engaging tooth 46 of small gear 18.
Among the embodiment shown in the figure, connecting lining 40 and drive socket 24 is to be molded as with the backed stamper of plastics by small gear housing 44.
In order to guarantee to connect lining 40 and small gear 18 is rotatably connected well, the interior barrel surface of seat 41 has ditch or groove 50 longitudinally, therefore the connection lining 40 that is molded as by backed stamper has corresponding ditch or groove, can make to connect being rotatably connected reliably of lining 40 and small gear 18.
Ditch or groove 50 extend on the length that the preceding axial end that connects lining 40 limits.
Like this, connect lining 40 and have a back segment 52, the front end that the latter will connect the fluting of lining 40 is connected on the drive socket and is complementary with the smooth, cylindrical of seat 41.When using backed stamper molded, adopted and avoided connecting lining 40 and the means that small gear housing 44 adheres to mutually, make back segment 52 can center on A
1Axis is with respect to small gear housing 44 torsional deformations.
The decision of the length of back segment 52 and thickness is connected the twisting strength characteristic of lining 40.This intensity should be enough to bear the required moment of heat engine starting, but should be not excessive, so that can play the motor effect intermittently that suppresses in starting process.
Designed different embodiments for connecting lining 40 and then drive socket 24 axial restraint with respect to small gear 18.
In the embodiment shown in fig. 4, on the interior barrel surface of the back axial end of the seat 41 of the bore hole 42 of small gear housing 44, be provided with circular groove 54.Therefore, after the usefulness backed stamper is molded, connects lining 40 and have an outer ring rib 56 on exterior cylindrical surfaces, the latter is arranged in circular groove 54 to guarantee to connect the axial restraint of lining 40 at small gear 18.
In embodiments of the invention shown in Figure 2, the assembly that is made of connection lining 40 and drive socket 24 has a linkage section 58 in the joint of these two parts, the latter has a transverse annular plate 60 that extends radially outwardly with respect to the tubular shell 34 that connects lining 40 and drive socket 24.
Transverse annular plate 60 is axially pressed and is attached on the back axial end 62 of small gear housing 44, and it has a tubulose prolonged section 64, and the back axial end 62 round small gear housing 44 axially extends forward the latter from its outer periphery.
The back axial end 62 of small gear housing 44 has a circular groove 68 on its exterior cylindrical surfaces 66, with the molded drive socket 24 of backed stamper the time, form a ring rib 70 in circular groove 68, and the latter extends radially inwardly from the front end of tubulose prolonged section 64.This ring rib 70 is arranged in circular groove 68, makes connection lining 40 and drive socket 24 with respect to small gear 18 axial restraints.
In the embodiment shown in Figure 2, transverse annular plate 60 constitutes the preceding radially outer convex shoulder 26 of drive socket 24, and when shift fork 20 moved forward transmission device 16, the actuating linkage 22 of shift fork 20 was pressed and is attached on the convex shoulder 26.
On the contrary, in the embodiment shown in fig. 4, preceding radially outer convex shoulder 26 is made of the back landscape surface 72 of the back axial end 62 of small gear housing 44.
Radially outer convex shoulder 28 can have various embodiments behind the drive socket.
Therefore can be by the die casting made radially outer convex shoulder (not shown) same with drive socket 24.
In order to increase the intensity of this back convex shoulder 28, in the embodiment shown in Figure 2, it is made separate piece, transverse annular metal washer for example, with backed stamper when molded, its radially inner periphery be embedded in the tubular shell 34 of drive socket 24, to guarantee reliable axial restraint.
In the embodiment shown in fig. 4, the ring washer that constitutes back convex shoulder 28 also has a sleeve pipe 74, and the latter axially extends back from the radial periphery of packing ring, when using backed stamper molded, partly is embedded in the tubular shell 34 of drive socket 24.
With the adapter form make after radially convex shoulder 28, especially when this adapter has an axial sleeve pipe 74, can strengthen drive socket 24, and avoid drive socket 24 by the radial deformation of spline 38 under the effect of the moment of transmitting between motor shaft 14 and the transmission device 16.
In the embodiment of starter motor shown in Figure 1, starter motor 10 is a small gear protrusion type, and promptly small gear and motor shaft are the type of overhanging, and the cylindrical hole 80 that small gear and motor shaft pass the front screen 76 of starter motor shell 78 exposes.
Or rather, the radial friction cutting edge seal ring 84 that small gear housing 44 has 82, one in a smooth Outer cylindrical face to be assemblied on the baffle plate 76 rubs on this face, enters in the starter motor shell 78 in order to avoid outside next water or dust.
The present invention is not limited to the various embodiments described above.In order to increase the strength and stiffness of drive socket, it can be made metal, for example connect lining 40 and can be with backed stamper and be molded in adapter on drive socket or the small gear housing.
Claims (12)
1. an automobile starter has a motor (12), and the motor shaft of motor (14) drives transmission device (16) around its longitudinal axis (A
1) rotation, transmission device moves axially on motor shaft (14), so that be configured in a gear engagement of small gear (18) Yu the tide of motorism force engine of transmission device (16) front end; Transmission device (16) rear end has one by be rotatably connected drive socket (24) on motor shaft (14) of spline (38); Moving axially of transmission device (16) by preceding (26), (28) two shift forks that radially outer convex shoulder matches in back (a 20) control with transmission device (16); It is characterized in that: a longitudinal axis (A
1) connection lining (40) be inserted between drive socket (24) and the small gear (18); Connect lining (40) with respect to drive socket (24) and small gear (18) translation be rotatably connected; Connecting lining (40) can be around its longitudinal axis (A
1) flexible distortion, with constitute one can resiliently deformable under the mutation effect of carry-over moment between drive socket (24) and small gear (18) the distortion damper.
2. starter motor according to claim 1 is characterized in that: small gear has a central bore (42), and it is slidingly mounted on the motor shaft (14); Connect the cylindrical seat (41) that lining (40) is arranged in the central bore (42) of small gear (18) at least in part; The inside and outside surface separately that connects lining (40) front end and seat (41) has complementary cannelure, is rotatably connected in order to guarantee connection lining (40) and small gear (18).
3. starter motor according to claim 1 and 2 is characterized in that: small gear (18) has a circular groove (54,68), and the ring rib (56,70) that connects lining (40) is arranged in groove, and translation is connected with small gear (18) so that connect lining (40).
4. according to the described starter motor of above arbitrary claim, it is characterized in that: small gear (18) is a metal; Connecting lining (40) is molded as by backed stamper with plastics.
5. starter motor according to claim 4 is characterized in that: drive socket (24) is made of plastic; Connecting lining (40) and drive socket (24) makes with same material.
6. starter motor according to claim 5 is characterized in that: transmission device radially outer convex shoulder (26,28) and drive socket (24) are made with same plastic materials at least.
7. starter motor according to claim 6, it is characterized in that: drive socket (24) comprises one and is molded in linkage section (58) on small gear (18) the back axial end (62) with backed stamper, linkage section (58) has a transverse annular plate (60), and the latter constitutes the preceding radially outer convex shoulder (26) of transmission device (16); Transverse plate (60) has a tubulose prolonged section (64) in its outer periphery, the latter axially extends forward and on the cylindrical wall an interior ring rib (70) is arranged in it, interior ring rib (70) is located in the circular groove of opening on the exterior cylindrical surfaces (66) of small gear (18) rear end (62) (68), and translation is connected so that drive socket (24) is with small gear (18).
8. according to each described starter motor in the claim 1 to 6, it is characterized in that: the preceding radially convex shoulder (26) of transmission device (16) is made of the back landscape surface (72) of small gear (18).
9. according to the described starter motor of above arbitrary claim, it is characterized in that: connect lining (40) and have a ring rib (56), the latter is located in the groove of opening on the inner cylindrical surface of central bore (42) of small gear (18) (54).
10. according to the described starter motor of above arbitrary claim, it is characterized in that: after radially convex shoulder (28) constitute by the transverse annular packing ring that is attached on the drive socket (24).
11. according to the claim 10 described starter motor that combines with claim 5, it is characterized in that: drive socket (24) links to each other in the backed stamper molding process with the transverse annular packing ring that constitutes back convex shoulder (28).
12. according to claim 10 or 11 described starter motors, it is characterized in that: ring washer (28) comprises a sleeve pipe (74), the latter extend axially and and drive socket (24) cooperate, be configured for limiting the reinforcer of drive socket (24) radial deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103054 CN1162695A (en) | 1996-03-08 | 1997-03-07 | Automotive igniter with small size gear and without free-wheel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9602943 | 1996-03-08 | ||
| CN 97103054 CN1162695A (en) | 1996-03-08 | 1997-03-07 | Automotive igniter with small size gear and without free-wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1162695A true CN1162695A (en) | 1997-10-22 |
Family
ID=5166527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97103054 Pending CN1162695A (en) | 1996-03-08 | 1997-03-07 | Automotive igniter with small size gear and without free-wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162695A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256164A (en) * | 2011-12-29 | 2013-08-21 | 罗伯特·博世有限公司 | Electric machine and installation method thereof |
| CN103423059A (en) * | 2012-05-24 | 2013-12-04 | 博世汽车部件(长沙)有限公司 | Vehicle starter and drive gear assembly thereof |
| CN104632497A (en) * | 2013-11-12 | 2015-05-20 | 罗伯特·博世有限公司 | Starting device for an internal combustion engine |
| CN105782257A (en) * | 2016-05-05 | 2016-07-20 | 谢博 | Drive shaft butting cylinder |
| CN110173346A (en) * | 2018-02-21 | 2019-08-27 | 博格华纳公司 | Gear-driven assembly for actuator system |
-
1997
- 1997-03-07 CN CN 97103054 patent/CN1162695A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256164A (en) * | 2011-12-29 | 2013-08-21 | 罗伯特·博世有限公司 | Electric machine and installation method thereof |
| CN103256164B (en) * | 2011-12-29 | 2016-05-11 | 罗伯特·博世有限公司 | Motor and installation method thereof |
| CN103423059A (en) * | 2012-05-24 | 2013-12-04 | 博世汽车部件(长沙)有限公司 | Vehicle starter and drive gear assembly thereof |
| CN103423059B (en) * | 2012-05-24 | 2016-08-03 | 博世汽车部件(长沙)有限公司 | Vehicle starter and drive gear assemblies thereof |
| CN104632497A (en) * | 2013-11-12 | 2015-05-20 | 罗伯特·博世有限公司 | Starting device for an internal combustion engine |
| CN105782257A (en) * | 2016-05-05 | 2016-07-20 | 谢博 | Drive shaft butting cylinder |
| CN110173346A (en) * | 2018-02-21 | 2019-08-27 | 博格华纳公司 | Gear-driven assembly for actuator system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |