A crane is a multi-action lifting appliance that vertically lifts and horizontally lifts heavy objects within a certain range. Also known as cranes, aerial cranes, cranes.
The main features of the tire crane are: its driving cab and crane operating room are combined into one and is evolved from a crawler crane (caterpillar crane), and the crawler belt and the walking bracket part of the traveling mechanism are turned into a chassis with a tire to overcome The drawback of the crawler crane (track crawler) crawler plate causing damage to the road surface belongs to material handling machinery.
Bridge cranes are lifting devices that are used to lift materials over the workshops, warehouses and stockyards. Because its two ends are located on tall concrete pillars or metal brackets, it looks like a bridge. The bridge crane's bridge runs longitudinally along the rails laid on both sides of the elevated bridge, which can make full use of the space under the bridge to lift materials and is not obstructed by the ground equipment. It is the most widely used and the largest number of lifting appliances.
Some of the lifting equipments are characterized by intermittent movements, that is, the corresponding mechanisms for retrieving, transporting, and unloading operations in a working cycle are alternated, and the development and use of cranes in the market is becoming more and more widespread. Due to the frequent occurrence of accidents without lifting the legs and hoisting, the traveling speed is faster than the crawler crane (crawler crane); the operation is stable, the lifting capacity is large, and the crane can be lifted in a specific range, but the road must be leveled and solid. The tire pressure meets the requirements and the distance from the ground shall not exceed 50 CM; it is forbidden to carry the load over long distances. In order to ensure the safety of operations, it is basically forbidden at home to carry out lifting operations. The types of wire ropes used for supporting cranes include phosphated steel wire ropes, galvanized steel wire ropes and smooth steel wire ropes.
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