发明名称 |
Differential gearing for vehicle including planetary gear mechanism and method of manufacturing same |
摘要 |
A sun gear 6 is rotatably fitted on a circle which is located on the inside of and concentric with an internal gear 4. A plurality of planet gears 8 carried by a planetary carrier 10 are disposed between the internal gear 4 and the sun gear 6 in meshing engagement with the internal gear 4 and the sun gear 6. In operation, a frictional resistance between a tooth crest 8a of the planet gear 8 and a planet gear carrying space in the planetary carrier 10 effects a differential action limitation. The tooth crest 8a of the planet gear 8 is formed with a number of fine recesses in an irregular condition. Because the recesses are not in the form of continuous grooves, but are in the form of pockets, a lubricant oil can kept in place reliably. Accordingly, the abrasion resistance and the seizure resistance of the planet gears 8 and the planetary carrier 10 are improved while allowing noises and vibrations to be reduced.
|
申请公布号 |
US2004214683(A1) |
申请公布日期 |
2004.10.28 |
申请号 |
US20040830691 |
申请日期 |
2004.04.23 |
申请人 |
TOYODA KOKI KABUSHIKI KAISHA |
发明人 |
YOSHIYAMA TAKAHIRO;HASEGAWA YASUNARI |
分类号 |
B60K17/16;F16H48/06;F16H48/20;F16H48/38;F16H55/08;(IPC1-7):F16H37/08 |
主分类号 |
B60K17/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|