256HC Mast Section The performance and quality of the lifting mechanism of tower crane
Tower crane is a necessary lifting and transportation equipment in construction, transportation and logistics industry. The performance and quality of the lifting mechanism of tower crane directly reflect the performance of the whole tower crane. At the same time, the tower crane hoisting mechanism is also the most powerful mechanism among the three tower crane mechanisms, mainly composed of motor, speed reducer, brake, frame and so on.
256HC Mast Section
http://www.towercranesupply.com/product/256hc-mast-section-liebherr-tower-crane
First of all, let's understand the part of the motor in the lifting mechanism -- the type of motor used by the tower crane and the lifting performance of the tall tower long-arm crane. So far, the lifting motor widely considered appropriate and used are: multi-speed motor, winding motor, variable frequency motor. Its performance and price are rise one by one, with the craft that a type is not the same that same manufacturer produces is different, its quality and price distinction are very big also.
Tight to continue, it is not in the tower crane parts can lower the machine speed - or the lack of tower crane so far more right and using multistage machine cylindrical gear to reduce speed, but because the market competition is very tense, do have different ideas, different company that produce and use of technology, the quality and the price difference is very big. According to my understanding, in order to meet the low demand of the market, some low speed machine factories do not do heat treatment and surface treatment of gear, so that the performance of the product is not guaranteed, the life of the living is greatly reduced, and soon it appears that the noise is very loud.
In addition, the reliability of the tower crane brake in the lifting mechanism also directly affects the safety performance of the long arm crane tower, the choice of manufacturers should be concerned about the value of attention. The frame is roughly similar to the metal structure of the long-arm crane with a high tower. The main function is to provide physical support for the lifting mechanism. The reasonable structure and material selection is also a problem worthy of demand.
256HC Mast Section
http://www.towercranesupply.com/product/256hc-mast-section-liebherr-tower-crane
