How do you tell the difference between a big crane and a small and medium-sized crane
In the driver mode: one type of drive, which drives the active wheel on both sides with an electric motor drive the long drive shaft. The other type is driven by an electric motor, which is driven separately by the active wheel on both sides. More medium and small bridge crane brake, reducer and motor group synthesis drive mode, the integration of the "triad" big lifting weight of ordinary bridge crane for ease of installation and adjustment, drive often adopt universal coupling. According to structure form, the crane is mainly divided into small light lifting equipment, bridge frame (bridge, gantry crane), arm posture (self-propelled, tower, portal crane, rail, pontoon type, mast crane), cable type.
classification The lifting machinery used in the construction of the bridge is generally divided according to its construction and performance Hoisting machinery classification For light and small lifting equipment, bridge type crane and arm frame type crane, cable crane four kinds of cranes. Light and small lifting equipment such as jack, pneumatic gourd, electric gourd, balance gourd, winch and so on. Bridge type crane machine such as beam crane and so on. The arm frame type crane, such as fixed revolving crane, tower crane, truck crane, tyre crane, crawler crane, etc. A cable crane is like a lift. Moving crane, tower crane, mast crane.
The distinction between heavy crane and small and medium cranes is the rating of crane. 1-50t is a small 50-100t medium 100-320t large size of 320T large A crane is a multi-action lifting machine with vertical lifting and horizontal lifting in a certain range. Also known as crane.
Well, that's a bit of a problem. There's no such thing as a production license. But from the evidence we've taken, the analogy is that the 450T is super large. If this is the extent of understanding: 1-50 t belong to small 50-100 - t medium 100-320 t large More than 320 t large
