CN202833938U - Sun wheel gear - Google Patents
Sun wheel gear Download PDFInfo
- Publication number
- CN202833938U CN202833938U CN 201220492717 CN201220492717U CN202833938U CN 202833938 U CN202833938 U CN 202833938U CN 201220492717 CN201220492717 CN 201220492717 CN 201220492717 U CN201220492717 U CN 201220492717U CN 202833938 U CN202833938 U CN 202833938U
- Authority
- CN
- China
- Prior art keywords
- sun gear
- sun wheel
- wheel body
- center hole
- gear
- 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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- Gears, Cams (AREA)
Abstract
The utility model relates to a sun wheel gear which comprises a sun wheel body. Gears are arranged on the excircle surface of the lower end portion of a wheel edge of the sun wheel body. The gears are distributed evenly along circumference. Symmetrical center holes are formed in the upper end surface and the lower end surface of the sun wheel body. A central axis of the center holes coincides with a central axis of the sun wheel body. The center holes are composed of innermost cone-shaped holes, intermediate cylinder-shaped holes and outermost horn-shaped holes. The center holes at the two ends of the sun wheel body are clamped so that process of gear teeth on the sun wheel body can be carried out. Machining precision of each gear tooth is effectively guaranteed, and accuracy rating and firmness of clamping of the sun wheel body are reserved effectively.
Description
Technical field
The utility model relates to the gear technique field, especially a kind of sun gear gear.
Background technique
Sun gear is the vitals in the Planetary Gear Transmission, and the making processing request of sun gear is higher, and the circumferential gear teeth of sun gear have higher requirement, and each gear teeth all needs identical with respect to the distance of sun gear central axis.For this higher requirement, therefore, so that in the prior art, the processing sun gear has certain difficulty, needs to use the process equipment of degree of precision, input cost is higher.
The model utility content
The technical problems to be solved in the utility model is: overcomes the deficiencies in the prior art, a kind of sun gear gear is provided, and not only easy to process but also can guarantee the machining accuracy of sun gear.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of sun gear gear, has the sun gear body, the periphery of the wheel rim end portion of described sun gear body has the gear teeth that distribute along even circumferential, the upper and lower end face place of described sun gear body is processed with respectively symmetrical center hole, the central axes of the central axis of described center hole and sun gear body.
Further, described center hole is comprised of the cone shape hole of innermost end, the cylindrical hole that is positioned at the centre and the bellmouth orifice of outermost end.
The beneficial effects of the utility model are: the upper and lower end face place of sun gear body of the present utility model is processed with respectively symmetrical center hole, the central axes of the central axis of center hole and sun gear body, by above-mentioned architecture advances, sun gear body of the present utility model can carry out by the center hole at clamping two ends the processing of the gear teeth on the sun gear body, effectively guarantees the machining accuracy of each gear teeth.Center hole is comprised of the cone shape hole of innermost end, the cylindrical hole that is positioned at the centre and the bellmouth orifice of outermost end, and the improvement of said structure can effectively keep degree of accuracy and the fastness of sun gear body clamping.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is structural representation of the present utility model;
Wherein: 1. sun gear body, 2. center hole.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic representation that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of sun gear gear, has sun gear body 1, the periphery of the wheel rim end portion of sun gear body 1 has the gear teeth that distribute along even circumferential, the upper and lower end face place of sun gear body 1 is processed with respectively symmetrical center hole 2, the central axes of the central axis of center hole 2 and sun gear body 1.Center hole 2 is comprised of the cone shape hole of innermost end, the cylindrical hole that is positioned at the centre and the bellmouth orifice of outermost end.
The upper and lower end face place of sun gear body 1 of the present utility model is processed with respectively symmetrical center hole 2, the central axes of the central axis of center hole 2 and sun gear body 1, by above-mentioned architecture advances, sun gear body 1 of the present utility model can carry out the processing of the gear teeth on the sun gear body 1 by the center hole 2 at clamping two ends, effectively guarantees the machining accuracy of each gear teeth.Center hole 2 is comprised of the cone shape hole of innermost end, the cylindrical hole that is positioned at the centre and the bellmouth orifice of outermost end, and the improvement of said structure can effectively keep degree of accuracy and the fastness of sun gear body 1 clamping.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (2)
1. sun gear gear, it is characterized in that: have the sun gear body, the periphery of the wheel rim end portion of described sun gear body has the gear teeth that distribute along even circumferential, the upper and lower end face place of described sun gear body is processed with respectively symmetrical center hole, the central axes of the central axis of described center hole and sun gear body.
2. sun gear gear according to claim 1 is characterized in that: described center hole by the cone shape hole of innermost end, in the middle of being positioned at cylindrical hole and the bellmouth orifice of outermost end form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492717 CN202833938U (en) | 2012-09-25 | 2012-09-25 | Sun wheel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492717 CN202833938U (en) | 2012-09-25 | 2012-09-25 | Sun wheel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833938U true CN202833938U (en) | 2013-03-27 |
Family
ID=47945647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220492717 Expired - Fee Related CN202833938U (en) | 2012-09-25 | 2012-09-25 | Sun wheel gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172391A (en) * | 2020-01-24 | 2021-07-27 | 大众汽车股份公司 | Method for the production of a closed hollow shaft |
-
2012
- 2012-09-25 CN CN 201220492717 patent/CN202833938U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172391A (en) * | 2020-01-24 | 2021-07-27 | 大众汽车股份公司 | Method for the production of a closed hollow shaft |
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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 |
Granted publication date: 20130327 Termination date: 20140925 |
|
| EXPY | Termination of patent right or utility model |