2. The structure of the overweight machine usually consists of three parts: one is the frame, and the other is the mechanism (including lifting mechanism, walking mechanism, rotating mechanism, luffing mechanism, etc. ), the third is the control system;
3. The frame is mainly composed of bridge, trolley, control room and escalator, which constitutes the main body of the crane.
Extended data:
Crane is a kind of lifting and handling machinery widely used in ports, workshops, electric power, construction sites and other places. The name crane is the unified title of lifting machinery. Usually, cranes are mainly truck cranes, crawler cranes and tire cranes. The use of cranes lies in lifting equipment, emergency rescue, lifting, machinery and rescue.
The dynamic stiffness is characterized by the dynamic deformation resistance of the crane as a vibration system, that is, when the suspension length of the wire rope is equivalent to the rated lifting height when it is fully loaded, it is characterized by the lowest natural frequency of the system in the vertical direction.
Baidu encyclopedia-overweight machine structure