The walking device, also known as the chassis, includes a track frame and a walking system, mainly composed of a track frame, a walking motor+reducer and its pipelines, driving wheels, guide wheels, carrier wheels, supporting wheels, tracks, and tensioning buffer devices. Its function is to support the weight of the excavator and convert the power transmitted by the driving wheels into traction, achieving the walking of the entire machine.
The frame assembly (i.e. the 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 from three parts: the left longitudinal beam (i.e. the left track frame), the main frame (i.e. the middle frame), and the right longitudinal beam (i.e. the 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 after the rotary platform rotates at any angle, the walking motor can still distribute oil normally. The current rotary joint is a 5-way joint
