Abstract
Currently, the design of screw conveyor is still relying on the experience formula, the formula in the experience of many of the parameters of the option is selected within a certain range rule of thumb, which makes the design of screw conveyor has fallen behind, unable to raise design standards and improve product performance. In this paper, for a more comprehensive treatment of screw conveyor, screw conveyor of the type of understanding, development status. Illustrates the working principle of screw conveyor. Screw conveyor according to the working principle, working conditions, transportation requirements to design a screw conveyor. The level of the screw conveyor for coal transportation, according to throughput and transmission distance design spiral diameter, spiral computed power and power is selected based on motor, reducer and couplings can solve practical problems. Finally, screw conveyor installation and maintenance of peace and make a summary. The design of future design work will have practical significance and value. The design is dedicated to transport dry and coal, to meet a certain length and traffic transportation requirements. Traditional design method, according to the LS-type screw conveyor material selection, calculation and check of the transport screw blade diameter obtained D = 500mm, speed n = 100r/min. According to this data, followed by calculation of the length distribution and select the screw shaft screw shaft steel shaft size and the size of each segment and the corresponding bearings. Selected according to traffic planetary gear, transmission ratio i = 10. Were selected coupling flange coupling. There reducer through the design drawings and the main part drawing. Checking the final check, I have concluded that the design of the design over a long time after the completion of the corresponding calculation and verification, CAD drawing with a computer to complete the assembly map drawing. Checking the final check, I concluded that the LS500 is designed to meet the design requirements shaped screw conveyor, the structure is not rigid plan on using reference books, and more applications move closer to the market, and finally completed the Graduation task.