What are the structural classifications of the stacker? The stacker is composed of a frame, a horizontal walking mechanism, a lifting mechanism, a loading platform, a fork and an electrical control system. It is different from each other in structural form. At present, the stacker in the stereoscopic warehouse has a double column structure and a single column structure.Stacker is a special crane developed with the emergence of the three-dimensional warehouse. It is the most important lifting and transportation equipment in the three-dimensional warehouse and the symbol representing the characteristics of the three-dimensional warehouse.
The frame of double column stacker consists of two columns, upper beam and lower beam to form a rectangular frame.The column forms are square tube and round tube.The square tube is also used as the lifting guide rail, and the round tube is added with the lifting guide rail.The biggest advantage of double column stacker is that it has good strength and rigidity, and runs smoothly.Generally, the stacker with high lifting height, large lifting capacity and high horizontal running speed adopts double column structure.The lifting mechanism of double column stacker generally adopts chain drive, and the chain wheel is driven by the motor reducer to rotate, which leads the loading platform to move up and down along the column or the guide rail of the crane.Due to the limitation of space size, the transmission and arrangement of chain traction platform or counterweight device are more complex, but the positioning is more accurate.
The frame of stacker with single column structure is composed of a column and a lower beam.The columns are mostly made of large H-shaped steel or welded, and the guide rails are attached to the columns.The whole machine is light in weight and consumes less materials, so the manufacturing cost is relatively low, but the rigidity is slightly poor.Due to the eccentric effect of the loading platform and goods on the column, as well as the horizontal inertial force generated during walking and braking, the single column stacker has limitations in use.It is not suitable for the stacker with large lifting weight and high horizontal running speed.The hoisting structure of single column stacker generally adopts wire rope drive. The motor reducer drives the drum to rotate, and the wire rope pulls the loading platform to move up and down along the column or hoisting rail.
The main purpose of the stacker is to run along the track in the roadway of the high-rise shelf warehouse, store the goods at the gateway into the cargo compartment; or on the contrary, take out the goods in the cargo compartment and transport them to the gateway to complete the warehousing operation.