Autonomous mower

Реферат: Aspects relate to an autonomous ground working vehicle. The vehicle has a chassis, wheels coupled to the chassis, a motor housing coupled to the chassis, a tool motor, and a tool. The motor housing defines a motor cavity extending in an axial direction and has a first inner housing portion having a first helical thread about the motor cavity and a second inner housing portion having a second helical thread about the motor cavity that engages the first helical thread. The first inner housing portion has a motor mounting surface and is axially translatable relative to the chassis and rotatably fixed relative to the chassis. The second inner housing portion is rotatable relative to the chassis and axially fixed relative to the chassis. The tool motor is fixed to the motor mounting surface and has an output shaft extending in a first direction. The tool is fixed to the output shaft.