The walking device of excavator

The walking device, also known as the chassis, includes a track frame and a walking system. It mainly consists of a track frame, a walking motor+reducer and its pipelines, driving wheels, guide wheels, idler wheels, support wheels, tracks, and tension buffer devices. Its function is to support the weight of the excavator and convert the power transmitted by the driving wheels into traction force, achieving the walking of the whole machine.

The frame assembly (i.e. track walking frame assembly) is an integral welded component with an X-shaped structure, which has the main advantage of high load-bearing capacity. The frame assembly is welded together from three parts: the left longitudinal beam (i.e. left track frame), the main frame (i.e. middle frame), and the right longitudinal beam (i.e. right track frame). The weight of the frame assembly is 2 tons.

The central rotary joint is a hydraulic component that connects the rotary platform and the chassis oil circuit. It ensures that the walking motor can still supply oil normally after the rotary platform rotates at any angle. The current rotary joint is 5-way.