CN201858279U - Overrunning clutch for automobile power generator - Google Patents
Overrunning clutch for automobile power generator Download PDFInfo
- Publication number
- CN201858279U CN201858279U CN2010206276578U CN201020627657U CN201858279U CN 201858279 U CN201858279 U CN 201858279U CN 2010206276578 U CN2010206276578 U CN 2010206276578U CN 201020627657 U CN201020627657 U CN 201020627657U CN 201858279 U CN201858279 U CN 201858279U
- Authority
- CN
- China
- Prior art keywords
- arc transition
- power generator
- wedge
- needle roller
- mandrel
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an overrunning clutch for an automobile power generator, comprising an external star wheel (1), needle rollers (2) and return springs (3), wherein the end surface of the inner diameter of the external star wheel is formed by an even number of wedge-shaped cavities, each wedge-shaped cavity is approximately convex, planes of the convex top ends are in circular arc transition with convex ribs and are provided with the needle rollers, and the radius of circular arc transition is matched with that of each needle roller; any side of the circular arc transition is provided with a right-angle surface; the right-angle surfaces of the wedge-shaped cavities are respectively symmetrical to each other, and the return springs in contact with the needle rollers are respectively assembled on the right-angle surfaces of the wedge-shaped cavities. When an engine runs at high speed, the overrunning clutch is locked with a mandrel and a belt pulley drives the mandrel to drive a power generator rotor to normally rotate; under such working condition, the overrunning clutch can complete the locking function of the mandrel and the power generator rotor. When the rotation speed of the engine suddenly becomes low, the clutch can still run at high speed after being separated from the mandrel and the rotor, thereby avoiding damage to the power generator rotor.
Description
Technical field
The utility model belongs to the automobile clutch technical field, refers more particularly to the free wheel device that a kind of automobile current generator is used.
Background technique
Motor car engine drives the generator amature generating in running, because the rotating speed of automobile in running constantly changes, make the rotating speed of generator amature also produce variation by a relatively large margin.
If clutch is installed in generator pulley, clutch can reduce the variable quantity of generator amature speed, thereby reduces the infringement to the generator generation.
Summary of the invention
For addressing the above problem, the utility model has designed the free wheel device that a kind of automobile current generator is used, and this free wheel device can reduce the amplitude of generator amature rotation speed change, thereby reduces the infringement to generator.
For achieving the above object, the utility model adopts following technological scheme:
The free wheel device that described a kind of automobile current generator is used comprises out star wheel, needle roller and Returnning spring, the interior round internal diameter of the outside diameter of out star wheel and belt pulley is complementary, the internal diameter end face of out star wheel is made of even number wedge shape die cavity, described wedge shape die cavity is similar to " protruding " font, the plane and the fin on described " protruding " font top are arc transition and are equipped with needle roller, the radius of arc transition and needle roller radius coupling; Be provided with the right angle face of rectangular shape at the either side of arc transition, the right angle face of all wedge shape die cavities all is symmetrical arranged, and all is equipped with Returnning spring in the right angle of all wedge shape die cavities face, and Returnning spring contacts with needle roller.
Owing to adopted technological scheme as mentioned above, the utility model produces following good effect:
1, the even number wedge shape cavity structure complexity of free wheel device is really simple in structure to free wheel device integral body.
2, free wheel device had both had the function of bearing, had the function of clutch again.
3, free wheel device and axle locking when high engine speeds turns round drives the generator amature normal rotation thereby belt pulley drives axle, and free wheel device can be finished the locking function of axle and generator amature under this operating mode.When the unexpected step-down of engine speed, throw-out-of clutch axle and rotor still can run up, and avoid the infringement to generator amature.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among Fig. 1: the 1-out star wheel; The 2-needle roller; The 3-Returnning spring.
Embodiment
In conjunction with Fig. 1, the free wheel device that a kind of automobile current generator of the present utility model is used comprises out star wheel 1, needle roller 2 and Returnning spring 3.
The interior round internal diameter of the outside diameter of out star wheel 1 and belt pulley is complementary and interference fit, the internal diameter end face of out star wheel is made of even number wedge shape die cavity, described wedge shape die cavity is similar to " protruding " font, the plane and the fin on described " protruding " font top are arc transition and are equipped with needle roller 2, and the radius of this arc transition and needle roller radius coupling are so that the rolling of needle roller.Be provided with the right angle face of rectangular shape at the either side of arc transition, the right angle face of all wedge shape die cavities all is symmetrical arranged, that is to say: if the right angle face is arranged on the right-hand member (by shown in Figure 1) of arc transition, then the right angle face of all wedge shape die cavities all is arranged on the right-hand member of arc transition, and in the right angle of all wedge shape die cavities face, all be equipped with Returnning spring, Returnning spring contacts with needle roller, Returnning spring makes needle roller be close to the left end of arc transition all the time, and Zhuan Pei Returnning spring has the function of retainer in groups.
During assembling, earlier Returnning spring is placed in the right angle face of out star wheel 1 wedge shape die cavity, needle roller 2 is placed in the wedge shape die cavity of out star wheel again, needle roller contacts with the wedge shape die cavity of out star wheel under the tension of Returnning spring and does not come off.Axle places in the wedge shape die cavity of out star wheel and with needle roller and contacts.Therefore the utility model had both had the function of bearing, had the function of clutch again.
During work, needle roller rotates between the wedge shape die cavity of axle, Returnning spring and out star wheel, free wheel device and axle locking when high engine speeds turns round, thereby belt pulley drives axle and drives the generator amature normal rotation, and free wheel device can be finished the locking function of axle and generator amature under this operating mode.When the unexpected step-down of engine speed, throw-out-of clutch axle and rotor still can run up, and avoid the infringement to generator amature.
Claims (1)
1. free wheel device that automobile current generator is used, it is characterized in that: this free wheel device comprises out star wheel (1), needle roller (2) and Returnning spring (3), the outside diameter of out star wheel (1) and the interior round internal diameter of belt pulley are complementary, the internal diameter end face of out star wheel (1) is made of even number wedge shape die cavity, described wedge shape die cavity is similar to " protruding " font, the plane on described " protruding " font top and fin are arc transition and are equipped with needle roller (2), the radius of arc transition and needle roller (2) radius coupling; Be provided with the right angle face of rectangular shape at the either side of arc transition, the right angle face of all wedge shape die cavities all is symmetrical arranged, and all is equipped with Returnning spring (3) in the right angle of all wedge shape die cavities face, and Returnning spring (3) contacts with needle roller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206276578U CN201858279U (en) | 2010-11-27 | 2010-11-27 | Overrunning clutch for automobile power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206276578U CN201858279U (en) | 2010-11-27 | 2010-11-27 | Overrunning clutch for automobile power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858279U true CN201858279U (en) | 2011-06-08 |
Family
ID=44104086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206276578U Expired - Lifetime CN201858279U (en) | 2010-11-27 | 2010-11-27 | Overrunning clutch for automobile power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858279U (en) |
-
2010
- 2010-11-27 CN CN2010206276578U patent/CN201858279U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |