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Tower crane
Tower crane is the most commonly used lifting equipment on construction sites, also called tower crane, which is mainly used for vertical transportation of materials and component installation in multi-story and high-rise building construction.
Tower crane, full name tower crane (tower crane), is a kind of lifting equipment widely used in construction sites. Its main function is to carry out vertical transportation of materials and installation of building components, which greatly improves construction efficiency.
Basic characteristics of tower crane
Structural composition: The tower crane consists of three parts: metal structure, working mechanism and electrical system. The metal structure includes the tower body, boom and base; the working mechanism includes lifting, amplitude change, rotation and travel; the electrical system includes motors, controllers, distribution cabinets, etc.
Working principle: The tower crane increases its height by extending (height) section by section. Its boom is placed on the top of the vertical tower body, which can be rotated and the working range can be changed. It has a large lifting height and working space.
Classification: Tower cranes can be divided into upper rotating type and lower rotating type according to the rotation mode; they can be divided into fixed type, mobile type and self-elevating type according to the walking mechanism; they can be divided into elevation luffing and trolley luffing according to the luffing mode.
Application of tower cranes
Tower cranes are mainly used in the construction of multi-story and high-rise buildings to lift construction materials such as steel bars, wooden slats, concrete, and steel pipes. It is an indispensable lifting equipment on construction sites and can significantly improve the efficiency of material transportation and construction.
Models and parameters of tower cranes
The model of a tower crane is usually composed of class, group, type, characteristics, main parameters and modification code. For example, QTZ80 represents an upper self-rotating tower crane with a rated lifting moment of 800KN·m.
