Patent ID: 11933396
Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 13:
14. A vehicle, comprising:
front wheels;
rear wheels;
a vehicle body connected between the front wheels and the rear wheels; and
a two-speed gearbox,
wherein the two-speed gearbox comprises a first gear shifting connection mechanism and a gear shifting mechanism, wherein the gear shifting mechanism comprises a drive motor, a shifting drum, and a first shifting mechanism, wherein
the shifting drum comprises a gear shifting shaft and a first guiding contour disposed in a circumferential direction of the gear shifting shaft, the first guiding contour has a path in an axial direction of the gear shifting shaft, and the drive motor is configured to drive the gear shifting shaft to rotate around the axial direction of the gear shifting shaft;
wherein the first shifting mechanism comprises an inner shaft, an outer hub, a first coupling pin, a first shifting fork, and an elastic component, the outer hub is sleeved on the inner shaft and is configured to move relative to an axial direction of the inner shaft, the outer hub and the gear shifting shaft are movably connected in the axial direction of the gear shifting shaft, the outer hub and the gear shifting shaft are fixedly connected in the circumferential direction of the gear shifting shaft, one end of the first coupling pin is fixed on an outer side of the outer hub, the other end of the first coupling pin is inserted into the first guiding contour and is configured to slide in the first guiding contour, and the first shifting fork is fixed on the inner shaft and is located on the outer side of the outer hub; and
wherein the elastic component is sleeved on the inner shaft and is located between the inner shaft and the outer hub, there is a first limiting portion and a second limiting portion between the outer hub and the inner shaft, the second limiting portion is located on a side of the first limiting portion, that is away from the first shifting fork, the elastic component is located between the first limiting portion and the second limiting portion in the axial direction of the inner shaft, the first limiting portion is connected to one of the outer hub and the inner shaft, and the second limiting portion is connected to the other of the outer hub and the inner shaft;
wherein the first gear shifting connection mechanism is connected to the first shifting fork, and the first shifting fork controls connection and disconnection of the first gear shifting connection mechanism through axial movement;
and the two-speed gearbox is mounted on the vehicle body,
wherein the first shifting mechanism further comprises a hub-rotation limiting component, one end of the hub-rotation limiting component is disposed with a third limiting portion sleeved on the outer hub, a first limiting plane is disposed on an inner surface of the third limiting portion, a second limiting plane matching the first limiting plane is disposed on the outer hub, the first limiting plane is attached to the second limiting plane, the other end of the hub-rotation limiting component is disposed with a fourth limiting portion, the fourth limiting portion comprises a limiting curved surface that is concave toward the third limiting portion, and the limiting curved surface surrounds a part of a surface of the gear shifting shaft and is spaced from the gear shifting shaft.