Hoist crane mechanism is unique is the use of a three-drive unit, three drive means is to drive the motor, brake and transmission brake device as one of the three gear (almost without coupling) of a compact and lightweight drive.
2013年8月21日星期三
Tower crane utilization levels, working-level
Tower cranes are intermittent operation of the machine, with a short and repetitive work characteristics. Work agencies stops occasionally, sometimes forward, sometimes reversed. Some
bridge gantry crane working three shifts day and night, some only work group, or even one day only works a few times. Such working conditions showed that: tower crane and its agencies to varying degrees that different busy use different level of tower cranes. While acting on the load on the tower crane is also changing, and some tower crane is often full, and some regular light load, the load situation is very different, that is a different tower crane load condition varies greatly. The use of different levels and loading conditions will determine the different levels of tower cranes work. This tower crane working characteristics of the design of the tower crane parts, metal structures and determine the dynamic power when the
steel crane must be considered. Tower crane working-level staff into both the design basis for the design, procurement, and users should also be a reference for rental of tower cranes. Tower cranes and tower cranes working-level costs are closely related. Purchase and lease of tower cranes, tower cranes to know the purpose of such construction, mounting, use the time and traffic, etc., hoist gantry crane in order to select the appropriate operational needs and affordable tower crane.
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