CN202690295U - Isolator - Google Patents
Isolator Download PDFInfo
- Publication number
- CN202690295U CN202690295U CN 201220351179 CN201220351179U CN202690295U CN 202690295 U CN202690295 U CN 202690295U CN 201220351179 CN201220351179 CN 201220351179 CN 201220351179 U CN201220351179 U CN 201220351179U CN 202690295 U CN202690295 U CN 202690295U
- Authority
- CN
- China
- Prior art keywords
- planet wheel
- spline
- gearing planet
- outer gearing
- live axle
- 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 - Fee Related
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Abstract
The utility model discloses an isolator. The isolator comprises a driving shaft, an external gearing planet wheel and a spline shaft, wherein holes in a step form consist of a large-aperture hole and a small-aperture hole and are arranged in the external gearing planet wheel; the tail end of the driving shaft is embedded into and closely matched with the large-aperture hole of the external gearing planet wheel; a plurality of wedge-shaped grooves are uniformly distributed on the internal sidewall of the large-aperture hole of the external gearing planet wheel; a spline groove is arranged on the internal sidewall of the small-aperture hole of the external gearing planet wheel; a spline section is arranged at one end of the spline shaft, embedded into the small-aperture hole of the external gearing planet wheel, and closely matched with the spline groove on the internal sidewall of the small-aperture hole; and a movable chamber, which faces to the opening direction of the small-aperture hole of the external gearing planet wheel, is formed in the tail end of the driving shaft. By virtue of the structure, the isolator is simple in structure, low in cost, and convenient to use.
Description
Technical field
The utility model relates to a kind of one-way element, especially relates to the one-way element on a kind of automobile starter.
Background technique
Existing one-way element, comprise live axle, outer gearing planet wheel and splined shaft, be provided with in this outer gearing planet wheel by greatly, the step-like hole that the small aperture forms, the tail end of described live axle is embedded in the large aperture of outer gearing planet wheel, also offer several equally distributed wedge slots on the wide-aperture madial wall of described outer gearing planet wheel, roller and spring are housed respectively in each wedge slot, one end of this spring is butted on the described wedge slot, the other end of spring is pressed on described roller top between described wedge slot and the described live axle, the madial wall of the small aperture of described outer gearing planet wheel is provided with spline, spline can be connected with the spline segment of splined shaft, is connected with gear on the top of described live axle.In use, gear is driven by driving mechanism, thereby the transfer motion power and the spline on the small aperture of outer gearing planet wheel matches with spline segment on the splined shaft, when needs splined shaft and one-way element are separated, the spline of outer gearing planet wheel and the spline segment of splined shaft are broken away from fully, like this so that the axial length of one-way element is elongated, thereby increased the axial length of starter motor, and cost is high.
Summary of the invention
Have above-mentioned deficiency in the prior art in order to overcome, the utility model provides a kind of simple in structure, one-way element that cost is low and easy to use.
The technical scheme in the invention for solving the technical problem is: a kind of one-way element, comprise live axle, outer gearing planet wheel and splined shaft, be provided with in the described outer gearing planet wheel by greatly, the step-like hole that the small aperture forms, the tail end of described live axle is embedded in the large aperture of outer gearing planet wheel and closely cooperates, also offer several equally distributed wedge slots on the wide-aperture madial wall of described outer gearing planet wheel, the small aperture madial wall of described outer gearing planet wheel is provided with spline, one end of described splined shaft is provided with spline segment, spline segment is embedded in the small aperture of outer gearing planet wheel, and the spline that is provided with the small aperture madial wall closely cooperates, and the tail end of described live axle is provided with towards the movable chamber of the small aperture opening direction of outer gearing planet wheel.
Further, the external diameter in described movable chamber is greater than the external diameter on live axle top, thereby strengthened the intensity of live axle.
Further, described splined shaft is positioned at movable chamber, and can do in movable chamber and endwisely slip.
Further, in the described wedge slot roller and spring are housed respectively.
Further, an end of spring is butted on the described wedge slot, and the other end is pressed on described roller top between described wedge slot and the described live axle.
Further, described spline is the helical spline groove, and described spline segment is helical spline and is meshed with helical spline groove on the outer gearing planet wheel madial wall.
The utility model in use, on the top of live axle gear is installed, gear is driven by driving mechanism, the spline segment of splined shaft is embedded in the small aperture of outer gearing planet wheel, its spline segment is helical spline and is meshed with helical spline groove in the small aperture of outer gearing planet wheel, thereby realizes power transmission.When needs splined shaft and outer gearing planet wheel are separated, only need to promote the outer gearing planet wheel, splined shaft integral body is moved to the movable cavity direction of live axle, and the helical spline groove in the small aperture of the helical spline of splined shaft and outer gearing planet wheel is separated, at this moment, splined shaft can partly be contained in the movable chamber of live axle, but outer gearing planet wheel relative spline shaft rotate, thereby finish the disengaging of splined shaft and outer gearing planet wheel.
The beneficial effect that one-way element of the present utility model has is: owing to be provided with movable chamber in the live axle, so that when outer gearing planet wheel and splined shaft are separated, splined shaft can partly be contained in the movable chamber of live axle, thereby can shorten the axial length of one-way element, further so that the axial length of starter motor shorten, thereby so that the volume-diminished of starter motor is saved installing space, save material, reduce cost; And structure is simpler, uses also very convenient.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is the A-A phantom of Fig. 1.
Wherein, 1 is live axle, and 2 are the outer gearing planet wheel, and 3 is wedge slot, and 4 is roller, and 5 is spring, and 6 is spline, and 7 is movable chamber.
Embodiment
With reference to Fig. 1, Fig. 2, preferred embodiment for a kind of one-way element assembly of the utility model, comprise live axle 1, outer gearing planet wheel 2 and splined shaft, be provided with in the described outer gearing planet wheel 2 by greatly, the step-like hole that the small aperture forms, the tail end of described live axle 1 is embedded in the large aperture of outer gearing planet wheel 2 and closely cooperates, also offer several equally distributed wedge slots 3 on the wide-aperture madial wall of described outer gearing planet wheel 2, the small aperture madial wall of described outer gearing planet wheel 2 is provided with spline 6, one end of described splined shaft is provided with spline segment, spline segment is embedded in the small aperture of outer gearing planet wheel, and closely cooperates with spline 6 that the small aperture madial wall is provided with.
In order to realize a kind of simple in structure, one-way element that cost is low, easy to use, the tail end of described live axle 1 is provided with towards the movable chamber 7 of the small aperture opening direction of outer gearing planet wheel 2, has the external diameter in described movable chamber 7 on the described live axle 1 greater than the external diameter on described live axle 1 top, thereby strengthened the intensity of live axle 1, described splined shaft is positioned at movable chamber 7, and can do in movable chamber 7 and endwisely slip.
The utility model in use, on the top of live axle 1 gear is installed, gear is driven by driving mechanism, the spline segment of splined shaft is positioned at the small aperture of outer gearing planet wheel 2, its spline segment is helical spline and is meshed with helical spline groove 6 in the small aperture of outer gearing planet wheel 2, thereby realizes power transmission.When needs splined shaft and outer gearing planet wheel 2 are separated, only need to promote outer gearing planet wheel 2, splined shaft integral body is moved to movable chamber 7 directions of live axle 1, and the helical spline groove 6 in the small aperture of the helical spline of splined shaft and outer gearing planet wheel 2 is separated, at this moment, splined shaft can partly be contained in the movable chamber 7 of live axle 1, but outer gearing planet wheel 2 relative spline shafts rotate, thereby finish the disengaging of splined shaft and star-wheel.
Above-described structure is preferred embodiment of the present utility model, and being equal to of the structure of this product replaced to reach identical effect, and perhaps the art personnel are apparent, all should belong to protection domain of the present utility model.
Claims (6)
1. one-way element, comprise live axle, outer gearing planet wheel and splined shaft, be provided with in the described outer gearing planet wheel by greatly, the step-like hole that the small aperture forms, the tail end of described live axle is embedded in the large aperture of outer gearing planet wheel and closely cooperates, also offer several equally distributed wedge slots on the wide-aperture madial wall of described outer gearing planet wheel, the small aperture madial wall of described outer gearing planet wheel is provided with spline, one end of described splined shaft is provided with spline segment, spline segment is embedded in the small aperture of outer gearing planet wheel, and the spline that is provided with the small aperture madial wall closely cooperates, and it is characterized in that: the tail end of described live axle is provided with towards the movable chamber of the small aperture opening direction of outer gearing planet wheel.
2. a kind of one-way element according to claim 1, it is characterized in that: the external diameter in described movable chamber is greater than the external diameter on live axle top.
3. a kind of one-way element according to claim 2, it is characterized in that: described splined shaft is positioned at movable chamber, and can do in movable chamber and endwisely slip.
4. a kind of one-way element according to claim 1 is characterized in that: roller and spring are housed respectively in the described wedge slot.
5. a kind of one-way element according to claim 4, it is characterized in that: an end of described spring is butted on the described wedge slot, and the other end is pressed on described roller top between described wedge slot and the described live axle.
6. a kind of one-way element according to claim 1, it is characterized in that: described spline is the helical spline groove, described spline segment is helical spline and is meshed with helical spline groove on the outer gearing planet wheel madial wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351179 CN202690295U (en) | 2012-07-19 | 2012-07-19 | Isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351179 CN202690295U (en) | 2012-07-19 | 2012-07-19 | Isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690295U true CN202690295U (en) | 2013-01-23 |
Family
ID=47545921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220351179 Expired - Fee Related CN202690295U (en) | 2012-07-19 | 2012-07-19 | Isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812516A (en) * | 2017-11-22 | 2019-05-28 | Seg汽车德国有限公司 | Free-wheeling mechanism for starter and the starter for internal combustion engine |
-
2012
- 2012-07-19 CN CN 201220351179 patent/CN202690295U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812516A (en) * | 2017-11-22 | 2019-05-28 | Seg汽车德国有限公司 | Free-wheeling mechanism for starter and the starter for internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180719 |