CN203742873U - Small duplicate gear for electrical starting of engine - Google Patents
Small duplicate gear for electrical starting of engine Download PDFInfo
- Publication number
- CN203742873U CN203742873U CN201320864305.8U CN201320864305U CN203742873U CN 203742873 U CN203742873 U CN 203742873U CN 201320864305 U CN201320864305 U CN 201320864305U CN 203742873 U CN203742873 U CN 203742873U
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- gear
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- driving gear
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- 238000006073 displacement reaction Methods 0.000 claims description 7
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- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
The utility model provides a small duplicate gear for electrical starting of an engine. The small duplicate gear for electrical starting of the engine comprises a driving gear, a driven gear and a gear shaft. The driving gear rotates synchronously along with the gear shaft. The driven gear is connected with the gear shaft in a rotatable mode through a spiral spline. The end, connected with the driving gear, of the gear shaft is provided with a driving gear limiting device preventing the driving gear from moving towards the outer side, and the other end, connected with the driven gear, of the gear shaft is provided with a driven gear limiting device which limits the distance between the driven gear and the driving gear. The driving gear limiting device is a limiting boss and is integrated with the gear shaft, and the driving gear limiting device is easy to machine. The driven gear limiting device is a check ring, and therefore assembly is easy.
Description
Technical field
The utility model relates to the electric starter of motorcycle engine, relates in particular to connection gear wherein.
Background technique
In the market, camshaft underneath type motor is widely used on the products such as loading motor tricycle, and its discharge capacity is large, power moment of torsion is large, and mostly realizes electricity startup.And the existing electric starter of this class motor, its structure is still roughly the same with the structure of two-wheel car engine.Starting electrical machinery drives engine crankshaft to rotate and realize the startup of motor by large and small duplicate gear and overrunning clutch.But in prior art, the driven gear in little duplicate gear, is always engagement with the disk gear being connected on overrunning clutch.Like this, when engine shutdown, because reversion can occur engine crankshaft, drive overrunning clutch reversion, thereby can cause overrunning clutch or large and small duplicate gear, disk gear to bear sizable resistance.Motor repeatedly stopping in use, in the time of to a certain extent, can cause overrunning clutch locking, fall apart or consequence that large and small duplicate gear or disk gear etc. damage, affect overrunning clutch or greatly, life-span of the little duplicate gear of the electric startup of spiral, disk gear affect the normal use of motor.For this reason, there is before this technological scheme to propose to realize to drive crankshaft rotating when starting dynamo-electric startup and throw off with bent axle the little duplicate gear rotating during non-startup.But by this technological scheme, driven gear in little duplicate gear is being combined with its driving gear in the process of (simultaneously and the disk gear being connected on overrunning clutch engagement), driven gear will clash into driving gear and may make driving gear produce displacement and affect itself and the engagement of large duplicate gear, move noise simultaneously and increase.
Therefore, the problem that the utility model faces is to provide a kind of can either realization when starting dynamo-electric startup, to drive crankshaft rotating and throw off rotation with bent axle during non-startup, can guarantee that driving gear and duplicate gear greatly effectively mesh, the little duplicate gear of low operation noise for above-mentioned deficiency.
Model utility content
For realizing above-mentioned problem, the little duplicate gear of dynamo-electric startup that starts of the present utility model, comprise driving gear, driven gear and gear shaft, driving gear is set to gear shaft synchronous rotary, driven gear is rotatably connected with gear shaft by helical spline, driven gear is configured to: at motor during in starting state, this driven gear will be to driving gear near also contacting with it and then synchronous rotary under gear shaft drives, meanwhile, driven gear will drive engine crankshaft synchronous rotary; And at motor during in non-started state, this driven gear will no longer drive engine crankshaft synchronous rotary, meanwhile, driven gear will be no longer contact with driving gear also with it away from, its first technological points is, one end that gear shaft connects driving gear at it is provided with and prevents driving gear mobile driving gear limit stoper laterally, and is provided with restriction driven gear away from the driven gear limit stoper of driving gear distance at the other end that gear shaft connects driven gear; Between driven gear and driving gear, be provided with spring, this spring can make during in non-started state driven gear keep not driving engine crankshaft synchronous rotary at motor; And at motor during in starting state, this spring can not hinder driven gear to driving gear near and contact with it.
Such technological scheme, when starting dynamo-electric startup, drive crankshaft rotating and in the situation that non-electricity is thrown off the function of rotating with bent axle while starting guaranteeing that little duplicate gear is realized, due to the setting of driving gear limit stoper, can guarantee the stability that driving gear is connected with gear shaft and avoid because of driving gear by driven gear clash into produce to the displacement in gear shaft outside affect and other gears between normal engagement.
The utility model is on the basis of the first technological points, its second technological points is, driving gear limit stoper is designed on gear shaft near integrated positive stop lug boss outside driving gear, and driven gear limit stoper be the back-up ring of close driven gear arranged outside on gear shaft.Driving gear limit stoper be set to positive stop lug boss and with gear shaft one, it is comparatively easy to process; And driven gear limit stoper is arranged to back-up ring, assembling is become easily, can be assemblied on gear shaft by the sequencing of driving gear, spring, driven gear, driven gear back-up ring.
The utility model is on the basis of the first technological points, its the 3rd technological points is, driving gear limit stoper can be also the back-up ring of close driving gear arranged outside on gear shaft, and meanwhile, driven gear limit stoper is also the back-up ring of close driven gear arranged outside on gear shaft.This scheme also can be easy to realize, and meanwhile, during assembling, mode is more, can assemble respectively from the two ends of gear shaft, and can only from driven gear one end, assemble.
The utility model is first to the basis of the 3rd arbitrary technological points, and its 4th technological points is, driven gear and with its meshed gears, the equal two-way chamfering of the initial contacting part of gear teeth when both mesh.Such design, can guarantee that both mesh smooth, steady, the impact noise while reducing initial engagement, thus guarantee normally carrying out of electricity startup.
The utility model second or the basis of the 3rd technological points on, its 5th technological points is, driving gear is connected by key interference fit with gear shaft, to prevent that driving gear 31 is along the circumferential displacement of gear shaft 33.This scheme is that positive stop lug boss or back-up ring coordinate with aforementioned driving gear limit stoper, can prevent driving gear circumferential or lateral generation displacement along gear shaft simultaneously, thereby guarantee the normal engagement of driving gear and other gears and bear the normal impact from driven gear.
Accompanying drawing explanation
Fig. 1 is the structural representation (amplification) of the little duplicate gear of the utility model.
Fig. 2 is that the medium and small duplicate gear of Fig. 1 is applied to the structural representation (motor is in non-started state) in motor electric starter.
Fig. 3 be in Fig. 2 E to the sectional perspective schematic diagram (amplification) of gear teeth on look and little duplicate gear meshed gears.
Fig. 4 is F-F line cut-away view (amplification) in Fig. 3.
In figure, 1 is motor, and 11 is motor shaft, and 12 is engaging tooth, 2 is large duplicate gear, 21 first driving gears, and 22 is the first driven gear, 23 is the first gear shaft, 3 is little duplicate gear, and 31 is driving gear, and 32 is driven gear, and 33 is gear shaft, 34 is spring, and 35 is driven gear limit stoper, and 36 is helical spline, and 37 is driving gear limit stoper, 38 is key, and 4 is disk gear, and 41 is the gear teeth, 5 is overrunning clutch, and 6 is flywheel, and 7 is bent axle.
Embodiment
Below, when by reference to the accompanying drawings the utility model embodiment being described, take Fig. 2 as reference, the description of the sense of rotation relating in this specification, except special instruction, the left apparent direction of Fig. 2 of all take is described as benchmark.
As shown in Figure 1, the utility model starts dynamo-electric startup with little duplicate gear 3, and it comprises driving gear 31, driven gear 32 and gear shaft 33; This gear shaft 33 is pivotally supported on the case lid and casing of motor.Driving gear 31 by being spline in key 38(the present embodiment, can be also other forms of key with gear shaft 33) interference fit is connected to one end of gear shaft 33, so that driving gear 31 is with gear shaft 33 synchronous rotaries.Simultaneously, the one end that connects driving gear 31 at gear shaft 33 is provided with the driving gear limit stoper 37 that prevents driving gear 31 side shifting outside it, this driving gear limit stoper 37 can be near the driving gear 31 integrated positive stop lug boss in outside on gear shaft 33, also can be that near the back-up ring of driving gear 31 arranged outside, (this back-up ring can be fastened in the back-up ring groove arranging on corresponding gear shaft 33 on gear shaft 33, the spacing back-up ring of driving gear and corresponding back-up ring groove thereof, all not shown in the drawings).In the present embodiment, driving gear limit stoper 37 is set to positive stop lug boss (being to indicate in Fig. 1).Driven gear 32 by helical spline 36(in the present embodiment, helical spline 36 is dextrorotation 8 tooth splines) be rotatably connected to the other end relative with driving gear 31 on gear shaft 33 with gear shaft 33, at this other end, be provided with restriction driven gear 32 away from the driven gear limit stoper 35(of driving gear 31 distances to a certain extent, also can say that driven gear limit stoper 35 can prevent that driven gear 32 from deviating from from gear shaft 33).In the present embodiment, driven gear limit stoper 35 (is indicated in figure by the back-up ring near driven gear 32 arranged outside on gear shaft 33, the spacing back-up ring of this driven gear 32 is fastened in the back-up ring groove arranging on corresponding gear shaft 33, and this back-up ring groove does not mark in the drawings).Between driven gear 32 and driving gear 31, be provided with spring 34.
As shown in Figure 2, application has the motor electric starter of the little duplicate gear of the utility model, comprising: motor 1, large duplicate gear 2, little duplicate gear 3, disk gear 4, overrunning clutch 5, flywheel 6 and bent axle 7 and for supporting casing and the case lid (not shown) of the motor of these component.
Motor 1 is installed on the case lid of motor, and the termination of its motor shaft 11 is provided with engaging tooth 12, and this termination is set to partly stretch in the case lid of motor.Large duplicate gear 2 comprises integrated the first driving gear 21 and the first driven gear 22 and the first gear shaft 23, this first gear shaft 23 is supported on the case lid of motor, and the first driving gear 21 meshes and drives the first driven gear 22 rotations and then drive the first driven gear 22 synchronous rotaries with the engaging tooth 12 of motor shaft 11.Little duplicate gear 3 is pivotally supported on by gear shaft 33 on the case lid and casing of motor, and its driving gear 31 remains engagement with the first driven gear 22 in large duplicate gear 2.Bent axle 7 is supported on the casing of motor rotatably, its one end is fixedly connected with flywheel 6, on this flywheel 6, be connected with overrunning clutch 5, on this overrunning clutch 5, be connected with can flexing axle the disk gear 4 of 7 rotations, this disk gear 4 be set to driving gear 31 in little duplicate gear 3 and the below between driven gear 32 and can be under rated condition with driven gear 32 engagements or throw off and mesh.
As shown in Figure 2, the driven gear 32 in little duplicate gear 3 is arranged like this: at motor, during in starting state, the motor shaft 11 of motor 1 turns clockwise along a direction, drives the large duplicate gear 2 being engaged with to be rotated counterclockwise along b direction; Simultaneously, under the drive of large duplicate gear 2, driving gear 31 in little duplicate gear 3 turns clockwise along a ＇ direction together with the gear shaft 33 of interference spline joint with it, by helical spline 36, driven gear 32 is set under the effect of turning clockwise of its Action of Gravity Field and gear shaft 33, can overcome the elastic force of spring 34 and axially to the close c direction of driving gear 31, move (in this process, driven gear 32 can be more not micro-with gear shaft 33 rotations or rotational speed) along gear shaft 33; When driven gear 32 is along c to moving to the moment of meshing with disk gear 4 generation parts, driven gear 32 can promptly continue along c to mobile and complete and disk gear 4 engagements.Meanwhile, the inner side end 30(of driven gear 32 is referring to Fig. 1) be just set to when driven gear 32 meshes completely with disk gear 4 with the inner side end 39(of driving gear 31 referring to Fig. 1) contact, thus, driven gear 32 will synchronously turn clockwise under the drive at gear shaft 33, by disk gear 4, the transmission of overrunning clutch 5 and flywheel 6, driven gear 32 is synchronously rotated counterclockwise band dynamic crankshaft 7 (accordingly along b ＇ direction, clutch end from motor, namely from the right apparent direction of Fig. 2, bent axle 7 is for turning clockwise, not shown), under the cooperation of other component (not shown)s of the motors such as ignition mechanism, motor completes and starts the normal work that enters.The moment contacting rapidly at the inner side end 30 of driven gear 32 and the inner side end of driving gear 31 39, driving gear 31 by bear sizable from driven gear 32 along c to impact force and may make it along gear shaft 33 displacement laterally, thereby may affect the engagement of the first driven gear 22 in driving gear 31 and large duplicate gear 2; Meanwhile, the moment that start to start or finish at electricity, driving gear 31 can bear equally and very large along the circumferential power of gear shaft 33, may make it along being circumferentially subjected to displacement of gear shaft 33, thereby may affect the transmission of power between gear.But the positive stop lug boss in driving gear limit stoper 37(the present embodiment that the utility model arranges) and in key 38(the present embodiment, be spline) effect under, these two kinds of situations will can not occur.
And at motor during in non-started state, this driven gear 32 is set to: when engine start completes, to unclamp eletric starter button (is also that motor is now in course of normal operation, belong to motor in one of them of non-started state), motor 1 stops operating, and the large duplicate gear 2 being engaged with also stops operating and by the driving gear 31 in little duplicate gear 3, gear shaft 33 stopped operating, meanwhile, bent axle 7 is because of engine work, its rotating speed surmounts disk gear 4, the overrunning clutch 5 being fixed on flywheel 6 is thrown off with disk gear 4, disk gear 4 continues flexing axle 7 and rotates under the effect of rotatory inertia, because gear shaft 33 has now stopped operating, under the effect of helical spline 36, the driven gear 32 of the little duplicate gear 3 being still meshed with disk gear 4 by with respect to gear shaft 33, turn clockwise and axially to the direction away from driving gear 31 (with Fig. 2 in c in the opposite direction) mobile, and in driven gear limit stoper 35(the present embodiment for back-up ring) effect under to stop it to continue mobile to limit it by design load away from the position of driving gear 31, thereby finally make driven gear 32 and disk gear 4 throw off engagement, now, spring 34 is set under the effect of elastic force, can make driven gear 32 at motor under non-started state (be in course of normal operation or outage state under) remain at disk gear 4 and be the position of throwing off engagement, in this state, even if meet some, be difficult to situation about expecting, likely make driven gear 32 toward the direction with disk gear 4 engagements (be c to) motion, also can be stoped because of the effect of spring 34, can guarantee that driven gear 32 and disk gear 4 remain on disengagement engaging position.So; in engine working process; the driven gear 32 of little duplicate gear 3 will be in being and being disengaged from engagement status and making it can not drive engine crankshaft 7 synchronous rotaries and remain to engine start next time with disk gear 4; that is to say, though at motor when shutting down when another state of non-started state (also) still can keep this state.
In addition, for the stability of disk gear 4 engagements in the driven gear 32 that guarantees the little duplicate gear 3 of the utility model and embodiment and reduce the impact noise while just making to mesh, to driven gear 32 and to be engaged with gear be the disk gear 4 in the present embodiment, when both mesh, the initial contacting part of the gear teeth, all designs two-way chamfering.Fig. 3, Fig. 4 only be take the two-way chamfering of the gear teeth of disk gear 4 in the present embodiment and are described as example, and the two-way chamfering of the gear teeth on driven gear 32 is consistent therewith.Fig. 3 be in Fig. 2 E to the sectional perspective schematic diagram of gear teeth 41 on institute's optic disk generating gear 4, Fig. 4 is F-F line cut-away view (amplification) in Fig. 3, as shown in this two figure, the initial contacting part when 41 engagement of this gear teeth, along m to and n to this contacting part is carried out to two-sided full-shape.Object is to guarantee driven gear 32 and disk gear 4 both engagements of being engaged with smooth, steady, the impact noise while reducing initial engagement, thus improve the reliability that electricity starts.
The utility model is not limited to above-described embodiment, in main points of the present utility model, can have various shift design, as long as this shift design does not depart from design main points of the present utility model, all within protection domain of the present utility model.
Claims (5)
1. one kind is started dynamo-electric startup with little duplicate gear (3), comprises driving gear (31), driven gear (32) and gear shaft (33); Described driving gear (31) is set to described gear shaft (33) synchronous rotary; Described driven gear (32) is rotatably connected with described gear shaft (33) by helical spline (36); Described driven gear (32) is arranged like this: at motor during in starting state, this driven gear (32) will be to driving gear (31) near also contacting with it and then synchronous rotary under gear shaft (33) drives, meanwhile, driven gear (32) will drive engine crankshaft synchronous rotary, and at motor during in non-started state, this driven gear (32) will no longer drive engine crankshaft synchronous rotary, meanwhile, driven gear (32) will be no longer contact with driving gear (31) also with it away from, it is characterized in that
One end that described gear shaft (33) connects driving gear (31) at it is provided with and prevents described driving gear (31) mobile driving gear limit stoper (37) laterally, and is provided with the described driven gear of restriction (32) away from the driven gear limit stoper (35) of described driving gear (31) distance at the other end that gear shaft (33) connects driven gear (32); Between described driven gear (32) and described driving gear (31), be provided with spring (34), this spring (34) can make during in non-started state described driven gear (32) keep not driving engine crankshaft synchronous rotary at motor; And at motor during in starting state, this spring (34) can not hinder described driven gear (32) to driving gear (31) near and contact with it.
2. little duplicate gear as claimed in claim 1, is characterized in that,
Described driving gear limit stoper (37) is upper near the integrated positive stop lug boss in driving gear (31) outside at described gear shaft (33), and described driven gear limit stoper (35) is at the upper back-up ring near driven gear (32) arranged outside of described gear shaft (33).
3. little duplicate gear as claimed in claim 1, is characterized in that,
Described driving gear limit stoper (37) is at the upper back-up ring near driving gear (31) arranged outside of described gear shaft (33), and described driven gear limit stoper (35) is at the upper back-up ring near driven gear (32) arranged outside of described gear shaft (33).
4. as the little duplicate gear as described in arbitrary in claims 1 to 3, it is characterized in that,
Described driven gear (32) and with its meshed gears, the equal two-way chamfering of the initial contacting part of gear teeth when both mesh.
5. as the little duplicate gear as described in arbitrary in claim 2 or 3, it is characterized in that,
Described driving gear (31) is connected by key (38) interference fit with described gear shaft (33), to prevent that driving gear (31) is along circumferentially displacement of gear shaft (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320864305.8U CN203742873U (en) | 2013-12-26 | 2013-12-26 | Small duplicate gear for electrical starting of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320864305.8U CN203742873U (en) | 2013-12-26 | 2013-12-26 | Small duplicate gear for electrical starting of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742873U true CN203742873U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320864305.8U Expired - Lifetime CN203742873U (en) | 2013-12-26 | 2013-12-26 | Small duplicate gear for electrical starting of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742873U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422683A (en) * | 2015-12-05 | 2016-03-23 | 重庆华洋单向器制造有限公司 | Spirally-meshed one-way clutch |
| CN105422310A (en) * | 2015-11-30 | 2016-03-23 | 力帆实业(集团)股份有限公司 | Crankcase assembly |
| CN109973276A (en) * | 2019-03-07 | 2019-07-05 | 重庆隆鑫发动机有限公司 | Engine starting system and engine |
-
2013
- 2013-12-26 CN CN201320864305.8U patent/CN203742873U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422310A (en) * | 2015-11-30 | 2016-03-23 | 力帆实业(集团)股份有限公司 | Crankcase assembly |
| CN105422683A (en) * | 2015-12-05 | 2016-03-23 | 重庆华洋单向器制造有限公司 | Spirally-meshed one-way clutch |
| CN109973276A (en) * | 2019-03-07 | 2019-07-05 | 重庆隆鑫发动机有限公司 | Engine starting system and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151223 Address after: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee after: CHONGQING RATO TECHNOLOGY Co.,Ltd. Address before: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee before: CHONGQING RATO POWER Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Small duplicate gear for electrical starting of engine Effective date of registration: 20160706 Granted publication date: 20140730 Pledgee: China Co. truction Bank Corp Jiangjin branch Pledgor: CHONGQING RATO TECHNOLOGY Co.,Ltd. Registration number: 2016500000011 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190723 Granted publication date: 20140730 Pledgee: Chongqing Jiangjin Branch of China Construction Bank Co.,Ltd. Pledgor: CHONGQING RATO TECHNOLOGY Co.,Ltd. Registration number: 2016500000011 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20190722 Registration number: 2016500000011 Pledgee after: Chongqing Jiangjin Branch of China Construction Bank Co.,Ltd. Pledgee before: China Co. truction Bank Corp Jiangjin branch |
|
| PM01 | Change of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
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| CX01 | Expiry of patent term |