Full-range variable-length fixed crane (wire rope)

详情

The dock crane is a kind of lifting equipment commonly used in the loading and unloading of general or bulk cargo in ports, docks, warehouses, warehouses or factories. It is also called a dock crane. The equipment is roughly composed of a power unit and a bracket. We have introduced the structure of its power unit before. The bracket part of the dock crane consists of a main rod and a rotating arm composed of a screw, a jack nut and a vertical rod. The rotating arm can rotate **0 ​​degrees on the main rod. A travel switch is provided at the end of the arm to prevent over-positioning accidents caused by operating errors or failure. The operation starter realizes the forward and reverse rotation of the motor, which can wind and release the wire rope, and lift and lower objects through the pulley of the bracket part to complete the lifting operation.
Equipment maintenance:
(1) For the damaged parts of the paint film on the metal structure, the surface of the component should be cleaned and coated with anti-rust paint and decorative paint film to protect the metal surface from rust after rain and snow.
(2) Rust prevention work should be done carefully on the movable parts of the crane, such as the connecting pins between the sling and the crane, the guide wheels, and the wheels of the trolley. After stopping the machine, you can first clean these parts with a brush to remove impurities, moisture, rust spots, etc. that may cause rust, and then use **0 or **0 diesel on these parts. Because **0 or **0 diesel has stronger permeability than engine oil, the loaded hinged parts can penetrate into it, forming an oil film on the metal surface. Because of its low freezing point, it can resist low temperatures.
(3) After cleaning and lubricating with diesel, apply a layer of grease. Calcium-based or lithium-based grease is a good choice, because these two greases have good mechanical stability, adhesion and water resistance, and the freezing point can reach **0 degrees. When applying grease, the coating should not be too thick.
Rust prevention of dock cranes is a key task and cannot be sloppy. Therefore, maintenance and anti-rust work of dock cranes must be done regularly to be effective.