Power transmission device
A power transmission device includes a planetary gear, a reduction gear connected downstream of the planetary gear, a parking lock mechanism including a parking pawl configured to lock one rotation element of the planetary gear, and a barrier wall positioned between the planetary gear and the reduction gear. The parking pawl is rotatably supported on the barrier wall.
1. A power transmission device comprising:
a planetary gear;
a reduction gear connected downstream of the planetary gear;
a parking lock mechanism including a parking pawl configured to lock one rotation element of the planetary gear; and
a barrier wall positioned between the planetary gear and the reduction gear, wherein
the parking pawl is rotatably supported on the barrier wall.
2. The power transmission device according to claim 1 , wherein
the parking pawl, the planetary gear, and the reduction gear overlap in an axial direction.
3. The power transmission device according to claim 1 , wherein
the parking lock mechanism locks an outer circumference side of a carrier of the planetary gear.
4. The power transmission device according to claim 1 , wherein
the planetary gear is connected downstream of a motor, and
the motor and the planetary gear overlap in an axial direction.
5. A power transmission device comprising:
a planetary gear;
an intermediate case having a portion of a wall defining a space that houses the planetary gear;
a casing linked with the intermediate case;
a parking gear configured to rotate integrally with one rotation element of the planetary gear;
a parking pawl configured to engage with and disengage from the parking gear; and
a barrier wall positioned between the parking pawl and the casing, and rotatably supporting the parking pawl.
6. The power transmission device according to claim 5 , further comprising
a motor arranged downstream of the planetary gear, the motor overlapping the planetary gear in an axial direction.
7. The power transmission device according to claim 5 , wherein the parking pawl is positioned at an inner circumference of the intermediate case.
8. The power transmission device according to claim 5 , further comprising a gear arranged downstream of the planetary gear.
9. The power transmission device according to claim 5 , wherein the parking pawl overlaps the planetary gear in an axial direction.
10. The power transmission device according to claim 5 , wherein the parking pawl overlaps the barrier wall in an axial direction.
11. The power transmission device according to claim 5 , further comprising:
a first bearing supported on the barrier wall;
a second bearing supported on the casing; and
a third bearing supported on the intermediate case.