CN201513526U - Planetary gear drive mechanism - Google Patents
Planetary gear drive mechanism Download PDFInfo
- Publication number
- CN201513526U CN201513526U CN2009202288179U CN200920228817U CN201513526U CN 201513526 U CN201513526 U CN 201513526U CN 2009202288179 U CN2009202288179 U CN 2009202288179U CN 200920228817 U CN200920228817 U CN 200920228817U CN 201513526 U CN201513526 U CN 201513526U
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- CN
- China
- Prior art keywords
- tooth
- involute
- planetary gear
- depth
- gears
- 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 a planetary gear drive mechanism which at least comprises sun gears, planet gears and rotating stands with planet gear axles. The planet gears are installed on respective gear axles; the sun gears and the rotating stands are connected by evolvent half gears which are evenly distributed along the circumferential direction; and inner holes in the rotating stands are provided with the evolvent half gears which are evenly distributed along the circumferential direction. The planetary gear drive mechanism can avoid the slipping phenomenon of the matching surface when being affected by impact load, can greatly improve the reliability of a speed reducer and increase the transmission moment of the speed reducer.
Description
Technical field
The utility model relates to a kind of planetary gear mechanism.
Background technique
The maximum characteristics of planetary speed reducer are that driving torque is big, volume is little, transmission efficiency is high.Between sun gear and input shaft, the pivoted frame, traditional Placement is that the interference of light face is press-fitted or temperature is joined, owing to have the error of size in the course of working and press-fit the deflection of process, actual magnitude of interference does not often reach the requirement of theoretical magnitude of interference, be prone to skidding when transmitting torsion, thereby speed reducer was lost efficacy.
Summary of the invention
For solving the above-mentioned problems in the prior art, the utility model provides a kind of planetary gear mechanism, utilize the involute full-depth tooth of sun gear, the part of excision tip circle, make between sun gear and the pivoted frame to be connected by circumferential equally distributed involute half tooth, the endoporus of pivoted frame is done involute half tooth that evenly distributes circumferentially.
The technological scheme that its technical problem that solves the utility model adopts is as follows: this planetary gear mechanism comprises the pivoted frame of sun gear, planet wheel and band planet wheel shaft at least, planet wheel is installed on separately the wheel shaft, is connected by circumferential equally distributed involute half tooth between sun gear and the pivoted frame.
The endoporus of described pivoted frame is provided with circumferentially evenly distribution involute half tooth.
Described involute half tooth is the part of involute full-depth tooth, and the tooth depth of involute half tooth is 1/2～3/4 of an involute full-depth tooth tooth depth.
The planetary gear mechanism that adopts the utility model to provide, fitting surface produces the generation of skidding when avoiding being hit load, can improve the speed reducer reliability of operation greatly, increases the driving torque of speed reducer.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1. sun gears among the figure, 2. involute half tooth, 3. pivoted frame endoporus, 4. pivoted frame, 5. planet wheel.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Shown in Figure 1, this planetary gear mechanism comprises the pivoted frame 4 of sun gear 1, planet wheel 5 and band planet wheel shaft at least, planet wheel 5 is installed on separately the wheel shaft, be connected by circumferential equally distributed involute half tooth 2 between sun gear 1 and the pivoted frame 4, being involute half teeth that circumferentially distribute of pivoted frame endoporus 3 is meshed with involute half tooth 2 on the sun gear 1, involute half tooth 2 is the shapes after the excision of involute full-depth tooth part tip circle, be the part of involute full-depth tooth, the flank profil of involute half tooth 2 still is an involute shape, and tooth depth is 1/2～3/4 of an involute full-depth tooth tooth depth.Sun gear 1 and pivoted frame are 4 like this, and by the involute half tooth 2 quiet connections that cooperatively interact, fitting surface produces the generation of skidding when avoiding being hit load, has improved the speed reducer reliability of operation greatly, increases the driving torque of speed reducer.
Claims (3)
1. planetary gear mechanism comprises that at least the pivoted frame of sun gear, planet wheel and band planet wheel shaft, planet wheel are installed on separately the wheel shaft, is characterized in that: be connected by circumferential equally distributed involute half tooth between sun gear and the pivoted frame.
2. planetary gear mechanism according to claim 1 is characterized in that: the endoporus of pivoted frame is provided with circumferentially evenly distribution involute half tooth.
3. planetary gear mechanism according to claim 1 and 2 is characterized in that: involute half tooth is the part of involute full-depth tooth, and the tooth depth of involute half tooth is 1/2～3/4 of an involute full-depth tooth tooth depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202288179U CN201513526U (en) | 2009-10-13 | 2009-10-13 | Planetary gear drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202288179U CN201513526U (en) | 2009-10-13 | 2009-10-13 | Planetary gear drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513526U true CN201513526U (en) | 2010-06-23 |
Family
ID=42484936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202288179U Expired - Fee Related CN201513526U (en) | 2009-10-13 | 2009-10-13 | Planetary gear drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513526U (en) |
-
2009
- 2009-10-13 CN CN2009202288179U patent/CN201513526U/en not_active Expired - Fee Related
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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: 20100623 Termination date: 20111013 |