The definition and composition of the hoist, hoist is a kind of vertical lifting cargo machinery, by the roller, chain, hook, handle, gear and fuselage, etc. Usually, we usually use manual hoists, electric hoists or pneumatic hoists and other types of hoists, which can be used for lifting and handling small or medium-sized goods in warehouses or work sites.

The development of the conveyor chain structure has different requirements for the conveyor chain and the transmission chain and the drag chain. The functions of the conveyor chain to meet are: carrying the conveyor goods, meshing with the drive sprocket, running on the support track and small chain wear and elongation.

In daily life, we can often see the conveyor chain, and the conveyor chain has been widely used in various places, so how do we clean and maintain the conveyor chain in daily life?

There are a variety of transmission modes of equipment, of which the mechanical transmission is the use of machine parts directly to achieve transmission, common gear transmission and chain transmission belong to mesh transmission, in the meshing transmission process, lubricants on the service life of the gear and chain play a very important role.

Cranes are mainly divided into four categories, which are bridge type cranes, boom type cranes, light and small lifting equipment, and mobile cranes. The following is a detailed introduction of these four categories of cranes: