公开(公告)号：US5970809A

公开(公告)日：1999-10-26

申请号：US89082

申请日：1998-06-02

申请人： Yo Sang Nam ,  Young Sun Kang ,  Gye Yong Song ,  Sang Il Nam ,  Sam Suk Jung

发明人： Yo Sang Nam ,  Young Sun Kang ,  Gye Yong Song ,  Sang Il Nam ,  Sam Suk Jung

IPC分类号： B60K17/08 ,  B60K17/28 ,  F16H37/04 ,  F16H61/70 ,  F16H37/06

CPC分类号： F16H37/043 ,  B60K17/28 ,  F16H61/70 ,  Y10T74/19084 ,  Y10T74/19233 ,  Y10T74/19405

摘要： A transmission device for farm tractors is disclosed. In the transmission device, a hollow travelling drive shaft and a PTO drive internal shaft are substituted for a typical hollow PTO drive shaft and travelling internal shaft, respectively. The transmission device also has a splined flange for directly transmitting the engine power from the flywheel to the PTO drive internal shaft. In a main change gear unit, a hub sleeve and a main gear shifting shaft are forged into a single structure. A super low-speed change gear unit is connected to a sub-change gear through two sets of shafts capable of allowing the super low-speed change gear unit to be independently operated from the sub-speed change gear unit. The transmission device is thus selectively operated without performing any super low-speed changing action.

摘要翻译： 公开了一种农用拖拉机的传动装置。 在传动装置中，空心传动驱动轴和PTO驱动内轴分别代替典型的中空PTO驱动轴和行进内轴。 传动装置还具有用于将发动机功率从飞轮直接传递到PTO驱动内轴的花键法兰。 在主变速单元中，轮毂套和主变速齿轮轴被锻造成单个结构。 超低速变速齿轮单元通过能够使超低速变速齿轮单元从副变速齿轮单元独立地操作的两组轴连接到副变速齿轮。 因此，传动装置被选择性地操作而不执行任何超低速变化动作。