CN2594534Y - One-way clutch - Google Patents
One-way clutch Download PDFInfo
- Publication number
- CN2594534Y CN2594534Y CN 02287188 CN02287188U CN2594534Y CN 2594534 Y CN2594534 Y CN 2594534Y CN 02287188 CN02287188 CN 02287188 CN 02287188 U CN02287188 U CN 02287188U CN 2594534 Y CN2594534 Y CN 2594534Y
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- CN
- China
- Prior art keywords
- utility
- model
- driving
- helical
- shell
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- 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 - Fee Related
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Abstract
The utility model relates to a one-way clutch. The utility model comprises a driving gear, a driving casing which is arranged on a motor shaft, and a spring which is arranged in the driving casing, wherein, the inner circle surface of the driving casing is provided with an inner helical spline, and the outer surface of a helical ratchet wheel which is arranged in the driving casing is provided with an outer helical spline which is meshed with the inner helical spline of the driving casing; one end face of the helical ratchet wheel and one end face of the driving gear are respectively provided with ratchet teeth which are mutually engaged. Due to the adoption of the engagement of the helical splines on the inner and the outer circle surfaces, and the engaged drive of ratchet wheels, the utility model has the advantages that the driving torque is large, slippage can not exist, the reliability can be raised, the design is novel, the structure is compact, the starter can be better protected, and the utility model is especially suitable for high-power starters for vehicles to use. Because no irregular curve like a roller-type one-way clutch exists, the processing and the detection are easy, and the utility model is convenient for mass production.
Description
Technical field
The utility model relates to a kind of driving mechanism, particularly a kind of overrunning clutch that is used on the starter motor.
Background technique
Normally used overrunning clutch, a kind of is roller type, by the roller carry-over moment, because the raceway on the roller is special-shaped curved, make, detect all difficult, the processing cost height, and owing to be the line contact between raceway and the roller, frictional force is little, skidding appears after the wearing and tearing easily, thereby can not carry-over moment, cause clutch to lose efficacy poor reliability.In addition, roller one-way clutch is because of its structural reason, and it is bigger to take up room, and also only can hold the limited bearing roller of number in limited space, is difficult to bear greatly or has the load of impact, is only applicable on the following middle low power starter motor of 5.5kw.Another kind of friction disk type one-way clutch, the manufacturing process complexity, carry-over moment is limited, and the inconvenience maintenance, seldom uses.
Summary of the invention
In view of the foregoing, the purpose of this utility model is to provide a kind of reliability height, the life-span is long, carry-over moment is big, and compact structure is reasonable, the simple automobile-used overrunning clutch of production technology.
The utility model is realized by following scheme.This overrunning clutch comprises actuation gear, be loaded on the driving shell on the motor shaft and drive the interior spring of shell, drive the shell internal circular surfaces and be provided with internal thread spline, be loaded on the spiral ratchet outer surface that drives within the shell and be provided with outer spiral spline, be meshed with the internal thread spline that drives shell; One end face of spiral ratchet and an end face of actuation gear are respectively equipped with intermeshing hook tooth.
The utility model is owing to adopt engagement of inner and outer round surface helical spline and ratchet engaged transmission, and driving torque is big, can not skid; reliability improves greatly; novel in design, compact structure can be protected starter motor better, are specially adapted to high-power vehicle-mounted starting machine and use.Again owing to there be not such special-shaped curved of roller-type one way clutch, processing, detect easily, be convenient to produce in enormous quantities.
Description of drawings
Fig. 1 is the utility model ssembly drawing;
Fig. 2 drives shell section figure, left view for the utility model;
Fig. 3 is the utility model spiral ratchet sectional drawing, left view;
Fig. 4 is the utility model actuation gear sectional drawing, left view.
Specific implementation method
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in Figure 1 and Figure 2, drive shell 1 and be loaded on the motor shaft, its internal circular surfaces suppresses helical spline with the method for mechanical presses, is meshing with each other with the helical spline of spiral ratchet 3 outer round surface of processing with same technological method; Spiral ratchet 3 is loaded on and drives within the shell 1, between the interior edge face of its end face and driving shell 1 stage clip 2 is arranged.The hook tooth that the other end of spiral ratchet 3 is provided with hook tooth and actuation gear 4 end faces is meshing with each other.Actuation gear 4 is fixed on the live axle by ring washer 5.
When starter motor was switched on, the magnetic switch shift fork promoted overrunning clutch, forced and the engagement of engine flywheel gear ring, this moment, the starter motor main circuit was connected, armature shaft drives and drives shell 1, by spiral ratchet 3 and actuation gear 4, drives the flywheel ring gear rotation and pilots engine.When the rotating speed of engine flywheel gear ring is higher than actuation gear 4 rotating speeds; overrunning clutch is realized surmounting, and the ratchet of actuation gear 4 end faces begins to skid, and does not drive shell 1 high speed rotating and can not drive; thereby the protection starter motor, this moment, unidirectional clutch under the shift fork effect was return original position.
The utility model adopts spiral ratchet-type structure, belongs to domestic initiation, and technology reaches international most advanced level, it is little to have solved on the high-power starter motor overrunning clutch output torque, the inefficacy of easily skidding, the defective that the life-span is short, the high-power overrunning clutch that belongs to a new generation, market prospects are good.
Claims (1)
1, a kind of overrunning clutch, comprise actuation gear (4), be loaded on the driving shell (1) on the motor shaft and drive the interior stage clip (2) of shell, it is characterized in that driving shell (1) internal circular surfaces and be provided with internal thread spline, be loaded on spiral ratchet (3) outer surface that drives within the shell (1) and be provided with outer spiral spline, be meshed with the internal thread spline that drives shell (1); One end face of one end face of spiral ratchet (3) and actuation gear (4) is respectively equipped with intermeshing hook tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287188 CN2594534Y (en) | 2002-11-16 | 2002-11-16 | One-way clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287188 CN2594534Y (en) | 2002-11-16 | 2002-11-16 | One-way clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2594534Y true CN2594534Y (en) | 2003-12-24 |
Family
ID=33747585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02287188 Expired - Fee Related CN2594534Y (en) | 2002-11-16 | 2002-11-16 | One-way clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2594534Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168726A (en) * | 2011-02-21 | 2011-08-31 | 艾纯 | One-way clutch |
| CN103244580A (en) * | 2013-05-09 | 2013-08-14 | 无锡市神力齿轮冷挤有限公司 | Deceleration ratchet one-way clutch |
| CN103486154A (en) * | 2013-09-30 | 2014-01-01 | 中国科学院工程热物理研究所 | Overrunning clutch for starting gas turbine engine |
| CN104246263A (en) * | 2012-05-23 | 2014-12-24 | 弗瑞斯特集团荷兰有限责任公司 | Over-running clutch |
| WO2016032874A1 (en) * | 2014-08-24 | 2016-03-03 | Bates Julian | Mechanically disengaging overrunning clutch |
-
2002
- 2002-11-16 CN CN 02287188 patent/CN2594534Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168726A (en) * | 2011-02-21 | 2011-08-31 | 艾纯 | One-way clutch |
| CN104246263A (en) * | 2012-05-23 | 2014-12-24 | 弗瑞斯特集团荷兰有限责任公司 | Over-running clutch |
| CN104246263B (en) * | 2012-05-23 | 2017-05-24 | 弗瑞斯特集团荷兰有限责任公司 | Over-running clutch |
| CN103244580A (en) * | 2013-05-09 | 2013-08-14 | 无锡市神力齿轮冷挤有限公司 | Deceleration ratchet one-way clutch |
| CN103486154A (en) * | 2013-09-30 | 2014-01-01 | 中国科学院工程热物理研究所 | Overrunning clutch for starting gas turbine engine |
| CN103486154B (en) * | 2013-09-30 | 2015-12-23 | 中国科学院工程热物理研究所 | Gas turbine engine rises employs free wheel device |
| WO2016032874A1 (en) * | 2014-08-24 | 2016-03-03 | Bates Julian | Mechanically disengaging overrunning clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031224 Termination date: 20101116 |