2023-12-25
From the appearance, the excavator consists of three parts: working device, upper turntable, and traveling mechanism. Among them, the working device is a device that directly completes the excavation task. It is composed of three hinged parts: boom, stick and bucket. The lifting and lowering of the boom, telescopic stick and bucket rotation are all controlled by reciprocating double-acting hydraulic cylinders. The upper turntable is the operating platform of the excavator, which is equipped with