Mini Excavator

Common excavator structures include power unit, working device, slewing mechanism, control mechanism, transmission mechanism, walking mechanism, and auxiliary facilities.
The transmission mechanism transmits the power of the engine to the hydraulic motor, hydraulic cylinder and other actuating components through a hydraulic pump, pushing the working device to move and complete various operations.
Walking device
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
Working device
The working device is the main component of hydraulic excavators. Currently, the SY series excavators are equipped with a backhoe working device, which is mainly used to excavate soil below the stopping surface, but can also excavate soil below the maximum cutting height. In addition to digging pits, digging trenches, and loading, it can also perform simple leveling work on the site

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