CPC F16H 3/66 (2013.01) [B60D 1/249 (2013.01); B60D 1/32 (2013.01); B60T 8/248 (2013.01); B60T 2230/06 (2013.01); B60T 2250/03 (2013.01); B60W 2300/145 (2013.01); B62D 7/159 (2013.01); B62D 13/00 (2013.01); F16F 15/1206 (2013.01); F16F 15/1315 (2013.01); F16H 2200/2005 (2013.01)] | 20 Claims |
1. A truck, comprising:
a trailer comprising a traction pin; and
a tractor, connected to the trailer, the tractor comprising a traction saddle for connection with the traction pin, the traction saddle comprising:
a base;
a gear set disposed in the base and comprising:
an inner ring gear fixed to the base;
a plurality of planetary gears meshed with the inner ring gear;
a gear carrier fixing the plurality of planetary gears, wherein the gear carrier is used for fixing the traction pin to rotate with the traction pin; and
a sun gear, wherein the plurality of planetary gears are meshed with the sun gear to drive the sun gear to rotate; and
a damper connected to the sun gear to apply resistance.
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