A positional analysis is performed on the working equipment of hydraulic excavator with swivel bucketarm to get information on its working range and to provide basis for the sensor control.
对斗杆可回转的液压挖掘机工作装置进行了位置分析，可了解其挖掘范围，并为传感器控制提供依据；
2
Now WZ25-20 is regarded as an example, its backhoe device consists of moving arm, pole, bucket, guiding organization and rotation mechanism.