CN202266667U - Planet gear device - Google Patents
Planet gear device Download PDFInfo
- Publication number
- CN202266667U CN202266667U CN2011204137611U CN201120413761U CN202266667U CN 202266667 U CN202266667 U CN 202266667U CN 2011204137611 U CN2011204137611 U CN 2011204137611U CN 201120413761 U CN201120413761 U CN 201120413761U CN 202266667 U CN202266667 U CN 202266667U
- Authority
- CN
- China
- Prior art keywords
- planet
- planet wheel
- support body
- frame body
- wheel shafts
- 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
A planet gear device comprises a cylindrical planet frame body. One end of the planet frame body is provided with an output shaft, and the other end of the planet frame body is provided with an opening. A communication cavity communicated with the opening is arranged in the planet frame body, and at least three installation cavities capable of installing planet wheels are evenly distributed on the lateral wall of the communication cavity and penetrate through the planet frame body along the radial direction to be communicated with the communication cavity. Two lateral walls of the installation cavities are provided with installation holes located on the same line and penetrating through the planet frame body along the axial direction, planet wheel shafts are arranged in the installation cavities, two ends of the planet wheel shafts are fixed in the installation holes, the planet wheels are sleeved outside the planet wheel shafts, and the planets wheels can rotate relative to the planet wheel shafts. The planet gear device has the advantages that by adopting the structure, the planet wheel shafts are supported at two ends, thereby enhancing rigidity of the planet wheel shafts and having long service life, simple and compact structure and low manufacture cost.
Description
Technical field
The utility model relates to a kind of planetary gear system.
Background technique
Existing planetary gear system comprises planet carrier, is evenly equipped with at least 3 planet bearing pins on the end face of this planet carrier, and this planet bearing pin is set with planet wheel outward.Because an end of planet bearing pin is fixed on the planet carrier, the other end is a cantilever, makes that the planet bearing pin is that cantilever is installed, and this just requires the planet bearing pin to have very high intensity, and manufacture cost is high, and working life is short.
Summary of the invention
Have above-mentioned deficiency in the existing technology in order to overcome, the utility model provides a kind of planetary gear system of simple and compact for structure, low cost of manufacture, and its planet wheel shaft adopts two ends to support, and has strengthened the rigidity of planet wheel shaft, long service life.
The technological scheme that the utility model solves its technical problem is: a kind of planetary gear system, comprise the planet support body, and said planet support body is a cylindrical body; One end of said planet support body is provided with output shaft; The other end of said planet support body is provided with opening, is provided with the ditch cavity that is connected with said opening in the said planet support body, is evenly equipped with at least 3 installation cavitys that planet wheel can be installed on the sidewall of this ditch cavity; This installation cavity radially runs through said planet support body and is connected with said ditch cavity; The two side of said installation cavity is provided with the mounting hole that is located along the same line and runs through said planet support body vertically, is provided with planet wheel shaft in the said installation cavity, and the two ends of this planet wheel shaft are fixed in the said mounting hole; This planet wheel shaft is set with said planet wheel outward, and said planet wheel can rotate by said relatively planet wheel shaft.
Further, be provided with bearing between said planet wheel and the said planet wheel shaft.
The utility model in use, the planet carrier extracorporeal set has internal gear, sun gear is packed into through the opening on the planet support body in the ditch cavity; Planet wheel is contained on the planet wheel shaft through bearing housing; Then planet wheel shaft and planet wheel are placed in the installation cavity, and the two ends of planet wheel shaft are fixed in the mounting hole of two side of installation cavity, simultaneously; Planet wheel stretches out a part and the internal gear engagement driving of installation cavity; Planet wheel stretches into a part and the sun gear engagement driving in the ditch cavity, rotates thereby the motor input drives sun gear, and sun gear drives planet wheel and rotates; Under the effect of planet wheel and internal gear, drive the planet support body and rotate, thereby through the output of the output shaft on the planet support body.
The beneficial effect of the utility model is: adopt said structure, planet wheel shaft is a two end supports, has strengthened the rigidity of planet wheel shaft, long service life; And simple and compact for structure, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the planet support body of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
With reference to Fig. 1, Fig. 2, a kind of planetary gear system comprises planet support body 1; Said planet support body 1 is a cylindrical body; One end of said planet support body 1 is provided with output shaft 2, and the other end of said planet support body 1 is provided with opening 3, is provided with the ditch cavity 4 that is connected with said opening 3 in the said planet support body 1; Be evenly equipped with at least 3 installation cavitys 6 that planet wheel 5 can be installed on the sidewall of this ditch cavity 4; This installation cavity 6 radially runs through said planet support body 1 and is connected with said ditch cavity 4, and the two side of said installation cavity 6 is provided with the mounting hole 7 that is located along the same line and runs through said planet support body 1 vertically, is provided with planet wheel shaft 8 in the said installation cavity 6; The two ends of this planet wheel shaft 8 are fixed in the said mounting hole 7; Be set with said planet wheel 5 outside this planet wheel shaft 8, be provided with bearing 9 between said planet wheel 5 and the said planet wheel shaft 8, said planet wheel 5 can rotate by said relatively planet wheel shaft 8.
The utility model is set with internal gear 10 outside the planet support body 1 in use, and sun gear 11 is packed into through the opening on the planet support body 13 in the ditch cavity 4; Planet wheel 5 is sleeved on the planet wheel shaft 8 through bearing 9; Then planet wheel shaft 8 and planet wheel 5 are placed in the installation cavity 6, and the two ends of planet wheel shaft 8 are fixed in the mounting hole 7 of two side of installation cavity 6, simultaneously; Planet wheel 5 stretches out a part and internal gear 10 engagement driving of installation cavity 6; Planet wheel 5 stretches into a part and sun gear 11 engagement driving in the ditch cavity 4, rotates thereby the motor input drives sun gear 11, and sun gear 11 drives planet wheel 5 and rotates; Under the effect of planet wheel 5 and internal gear 10, drive planet support body 1 and rotate, thereby through 2 outputs of the output shaft on the planet support body 1.
Adopt said structure, planet wheel shaft 8 is a two end supports, has strengthened the rigidity of planet wheel shaft 8, long service life; And simple and compact for structure, low cost of manufacture.
Claims (2)
1. a planetary gear system comprises the planet support body, it is characterized in that: said planet support body is a cylindrical body; One end of said planet support body is provided with output shaft; The other end of said planet support body is provided with opening, is provided with the ditch cavity that is connected with said opening in the said planet support body, is evenly equipped with at least 3 installation cavitys that planet wheel can be installed on the sidewall of this ditch cavity; This installation cavity radially runs through said planet support body and is connected with said ditch cavity; The two side of said installation cavity is provided with the mounting hole that is located along the same line and runs through said planet support body vertically, is provided with planet wheel shaft in the said installation cavity, and the two ends of this planet wheel shaft are fixed in the said mounting hole; This planet wheel shaft is set with said planet wheel outward, and said planet wheel can rotate by said relatively planet wheel shaft.
2. according to the described planetary gear system of claim 1, it is characterized in that: be provided with bearing between said planet wheel and the said planet wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204137611U CN202266667U (en) | 2011-10-27 | 2011-10-27 | Planet gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204137611U CN202266667U (en) | 2011-10-27 | 2011-10-27 | Planet gear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266667U true CN202266667U (en) | 2012-06-06 |
Family
ID=46157464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204137611U Expired - Fee Related CN202266667U (en) | 2011-10-27 | 2011-10-27 | Planet gear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266667U (en) |
-
2011
- 2011-10-27 CN CN2011204137611U patent/CN202266667U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |