When did the crane originate? What is its prototype? Many people often mention driving, this driving is not a kind of (xing), but a kind of lifting machinery. Below, please ask the port crane experts to explain to us the origins of cranes and driving:
In fact, the orange used for irrigating farmland in ancient China was the prototype of a boom-type crane. In the 14th century, human and animal-powered rotating boom cranes appeared in Western Europe. In the early 19th century, bridge cranes appeared; important wear parts of cranes such as shafts, gears and spreaders began to be made of metal materials and began to be hydraulically driven.
In the late 19th century, steam-driven cranes gradually replaced hydraulically driven cranes. Since the 1920s, due to the rapid development of the electrical industry and the internal combustion engine industry, various cranes powered by electric motors or internal combustion engines have basically taken shape.
So what is a bridge crane?
It is a lifting device for lifting materials in the workshop, warehouse and stockyard. Because its two ends are located on tall cement columns or metal brackets, they are shaped like bridges. The bridge of the bridge crane runs longitudinally along the rails laid on the elevated sides of the bridge, which can make full use of the space under the bridge to lift the materials without being obstructed by the ground equipment. It is the most widely used and largest number of lifting appliances. The port lifts the production of professional lifting and driving. welcome.
What is the characteristic of a foundry crane?
It is used for injecting molten iron into a mixed iron furnace, a steelmaking furnace and lifting molten steel into a continuous ingot equipment or a steel ingot mold. The main trolley lifts the barrel, and the auxiliary car carries out auxiliary work such as reversing the barrel. In order to expand the use range of the auxiliary hook and better serve the steelmaking process, the main and auxiliary hooks are respectively arranged in the main body of the independent trolley running mechanism. The sub-cars are on and run along their respective tracks. Commonly used structural forms are four-beam four-track type and four-beam six-track type.
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