| 摘要 |
The present invention relates to an oil circulation apparatus and a twin rotary pump including the same, comprising: a case; a first gear unit accommodated within the case; a second gear unit accommodated within the case and interworking with the first gear unit; a third gear unit positioned below the first gear unit and interworking with the second gear unit; a pumping unit interworking with the third gear unit and pumping oil; and a transfer unit connected to the pumping unit and extending in a direction toward the first gear unit to supply oil to the first gear unit. In the present invention, since the pumping unit interworks with an existing gear assembly, separate power for driving the pumping unit is not required, preventing occupation of an unnecessary space. Also, since an amount of oil accommodated within the case is significantly reduced such that only a portion of a lower gear is immersed therein, resistance of the gear due to oil or viscous resistance can be significantly reduced. In addition, since a sufficient amount of oil is supplied to a gear disposed on an upper side within the case, a sealing member, and the like, a lubricating operation and a cooling operation can be smoothly performed, and since an oil circulation structure of applying oil to components within the case and collecting the same again is provided, oil consumption can be reduced. Moreover, a synchronous operation that oil pumping is accelerated as rotation of a rotational shaft and a gear unit is faster can be performed, it is easy to cool frictional heat caused as the gear unit and the sealing member move at a high speed. |
