Description of the Small Truck Crane
1. Lifting structure
The motor drives the high-speed shaft of the reducer through the high-speed shaft coupling, through the reducer and enlarges the torsion distance. The low-speed shaft drives the drum through the low-speed shaft coupling.
The steel wire rope drawn from the drum is connected with the fetching equipment through the guide pulley and the labor-saving lifting pulley set. Because the motor can be reversed and turned forward, the drum can be wound in or out. Lifting rope, complete the lifting of goods.
2. Operation Structure
According to its characteristics, it can be divided into two categories: operational and non-operational. Operational operation structure cooperates with other organizations to transport goods. Non-operational operation organizations are generally only used to adjust the operation orientation of small cranes.
According to the structural characteristics, they can be divided into tracked operation and trackless operation. The organization of tracked operation can be divided into self-propelled and tractive operation according to whether there are driving devices in the operation part.
There are two driving methods of running organization: assembly driving and separation driving. Convergence drive is only suitable for the operation organization of small cranes or lifting trolleys with small span.
3. Rotating structure of small crane
Rotary support equipment can be divided into two categories: column type and rotary disk type. Column reversal support is divided into column type and rotating column type.
Floating small crane mostly adopts fixed column type, while portal small crane mostly used rotating column type before. Rotary disc reverse support is divided into roller jacket type, supporting roller type and rolling bearing type.