CN101852161A - Automobile starting motor drive shaft with improved helical spline structure - Google Patents
Automobile starting motor drive shaft with improved helical spline structure Download PDFInfo
- Publication number
- CN101852161A CN101852161A CN 201010192902 CN201010192902A CN101852161A CN 101852161 A CN101852161 A CN 101852161A CN 201010192902 CN201010192902 CN 201010192902 CN 201010192902 A CN201010192902 A CN 201010192902A CN 101852161 A CN101852161 A CN 101852161A
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- CN
- China
- Prior art keywords
- helical spline
- drive shaft
- starting motor
- automobile starting
- motor drive
- 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.)
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention discloses an automobile starting motor drive shaft with improved helical spline structure, which is provided with a helical spline. The drive shaft is mounted on a one-way clutch via the helical spline, both sides of the top of the helical spline are respectively provided with an arc-shaped bearing region with the circular arc of R0.4 to 0.6; according to the automobile starting motor drive shaft with improved helical spline structure, both sides of the top of the helical spline are designed into arc-shaped structure, as a result, surface contact is achieved when force is applied to the helical spline on the drive shaft and an inner spline of the one-way clutch, thus local pressure is greatly lowered to guarantee smooth separation of the drive shaft from the one-way clutch, and the automobile starting motor drive shaft not only has simple structure, but can also reach safer and more reliable operation of the automobile starting motor.
Description
Technical field
The present invention relates to a kind of automobile starting motor drive shaft, particularly relate to the automobile starting motor drive shaft that a kind of tool improves helical spline structure.
Background technique
The live axle part is used for automobile starter, in planetary gear reduction system, be tie-rod (live axle) transmitting torque, it is provided with helical spline, the part that cooperates with helical spline is called overrunning clutch, the starter motor energising, switch is released overrunning clutch with the engagement of motor car engine flywheel ring gear and is driven engine revolution on the starter motor, oil supply, engine start, finish startup after, the dynamo-electric source of disconnected power down, switch discharges, and overrunning clutch is return along the live axle helical spline, finishes a circulation, in whole work cycle, after key was engine start, overrunning clutch must be return rapidly, broke away from and the flywheel engagement, if can not break away from, then flywheel ring gear will instead drive clutch, and then drive motor high speed rotating (tooth of anti-band was than about 20: 1), and speed may reach more than 50,000 commentaries on classics, this moment, motor each part can not bear, and will be got rid of diffusing and damage by following centrifugal force at a high speed.
When the motor switch outage discharges, overrunning clutch only relies on the strength of return spring to return, in addition when not breaking away from engagement, flywheel ring gear is counter is with transmission, certainly be that radial force is arranged, so the internal thread spline of one-way element and the outer spiral spline of live axle are also will move axially to return when radial pressure is arranged, the common external splines processing method of present most of producer is that rolling and stranding are rolled.The accumulation and the distortion of material are arranged on the tooth top of processing back.So also necessary grinding top circle, through after the grinding, the side of spline and end face form wedge angle, and the front said when inside and outside spline is stressed it substantially all is a contact or line contact, so under very big radial force, when the external splines wedge angle after the grinding contacted with internal spline point, pressure was just very big, therefore incarceration and stuck phenomenon will take place, thereby can not withdraw from smoothly, cause aforesaid electrical fault.
Summary of the invention
The object of the present invention is to provide a kind of tool to improve the automobile starting motor drive shaft of helical spline structure, it has simple in structure, safe characteristics.
The objective of the invention is to be achieved through the following technical solutions:
A kind of tool improves the automobile starting motor drive shaft of helical spline structure, and it is provided with helical spline, and described live axle is assemblied on the overrunning clutch by helical spline, and wherein, both sides, the key of described helical spline top all are set to the arc confined area.
The circular arc of described arc confined area is R0.4～0.6.
Beneficial effect of the present invention is, described tool improves the key top both sides design arcuate structure of the automobile starting motor drive shaft of helical spline structure with helical spline, helical spline on live axle is stressed with the internal spline of overrunning clutch like this is that face contacts as the time spent, reduced local pressure greatly, to guarantee that live axle and the smooth of overrunning clutch separate, not only simple in structure, and make the automobile starter operation more safe and reliable.
Description of drawings
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the sectional drawing of the automobile starting motor drive shaft of tool improvement helical spline structure of the present invention,
Fig. 2 is the structural representation of helical spline of the present invention.
Among the figure:
1, live axle; 2, overrunning clutch; 3, helical spline; 30, key top; 31, arc confined area.
Embodiment
Please refer to Fig. 1 to shown in Figure 2, Fig. 1 is the sectional drawing of the automobile starting motor drive shaft of tool improvement helical spline structure of the present invention, and Fig. 2 is the structural representation of helical spline of the present invention.
In present embodiment, a kind of tool improves the automobile starting motor drive shaft of helical spline structure, it comprises live axle 1 and is arranged at helical spline 3 on the live axle 1, described live axle 1 is assemblied on the overrunning clutch 2 by helical spline 3, one end of described overrunning clutch 2 is provided with the internal thread spline (not illustrating among the figure) with helical spline 3 engagements, the key of described helical spline 3 pushes up 30 both sides and all is set to arc confined area 31, and the circular arc of described arc confined area 31 is R0.5.
When the motor switch outage discharges, overrunning clutch 2 only relies on the strength of return spring to return, the helical spline 3 of the internal thread spline of described overrunning clutch 2 and live axle 1 moves axially to be return, helical spline 3 on the live axle 1 is stressed with the internal spline of overrunning clutch 2 at this moment is that face contacts as the time spent, reduced local pressure greatly, live axle 1 is separated smoothly with overrunning clutch 2, not only simple in structure, and make the automobile starter operation more safe and reliable.
Claims (2)
1. a tool improves the automobile starting motor drive shaft of helical spline structure, and it is provided with helical spline, and described live axle is assemblied on the overrunning clutch by helical spline, it is characterized in that: the both sides, key top of described helical spline all are set to the arc confined area.
2. tool according to claim 1 improves the automobile starting motor drive shaft of helical spline structure, and it is characterized in that: the circular arc of described arc confined area is R0.4～0.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192902 CN101852161A (en) | 2010-06-07 | 2010-06-07 | Automobile starting motor drive shaft with improved helical spline structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192902 CN101852161A (en) | 2010-06-07 | 2010-06-07 | Automobile starting motor drive shaft with improved helical spline structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101852161A true CN101852161A (en) | 2010-10-06 |
Family
ID=42803803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010192902 Pending CN101852161A (en) | 2010-06-07 | 2010-06-07 | Automobile starting motor drive shaft with improved helical spline structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101852161A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0266320A (en) * | 1988-08-31 | 1990-03-06 | Moriyama Kogyo Kk | Helical spline structure |
| US20020006239A1 (en) * | 2000-07-17 | 2002-01-17 | Koyo Seiko Co., Ltd. | Bearing apparatus |
| CN1611767A (en) * | 2003-10-30 | 2005-05-04 | 泽藤电机株式会社 | Starter |
| CN101149104A (en) * | 2007-11-09 | 2008-03-26 | 完颜学明 | Arc helix cylindrical gear and arc rack |
| CN101265864A (en) * | 2007-03-13 | 2008-09-17 | 株式会社电装 | Engine starter having improved helical spline structure |
| CN201687630U (en) * | 2010-06-07 | 2010-12-29 | 无锡赛可电气有限公司 | Driving shaft of automobile starter with improved spiral spline structure |
-
2010
- 2010-06-07 CN CN 201010192902 patent/CN101852161A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0266320A (en) * | 1988-08-31 | 1990-03-06 | Moriyama Kogyo Kk | Helical spline structure |
| US20020006239A1 (en) * | 2000-07-17 | 2002-01-17 | Koyo Seiko Co., Ltd. | Bearing apparatus |
| CN1611767A (en) * | 2003-10-30 | 2005-05-04 | 泽藤电机株式会社 | Starter |
| CN101265864A (en) * | 2007-03-13 | 2008-09-17 | 株式会社电装 | Engine starter having improved helical spline structure |
| CN101149104A (en) * | 2007-11-09 | 2008-03-26 | 完颜学明 | Arc helix cylindrical gear and arc rack |
| CN201687630U (en) * | 2010-06-07 | 2010-12-29 | 无锡赛可电气有限公司 | Driving shaft of automobile starter with improved spiral spline structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101006 |