Computer-aided Selected Designs And Parametric Drawings Of Steel-cored Belt Conveyors

As a new transport tool, steel-cored belt conveyors began to be used in 1950s. It has the same working principle as the ordinary belt conveyor. Its belt is made of steel rope inside and rubber outside. Therefore it has very high strength, large capacity and realizing long distance transportation. It makes transportation system simple and transportation efficiency high. The cost of equipment and transportation is much lower than ordinary belt conveyor. Recently because mining industry is developing continually, the steel-cored belt conveyors come into use in many iron mine and coal mine. With the development of economy, Steel-cored belt conveyor will play a more and more important role in the future.There are many parameters in the designing of belt conveyor. Only if these parameters are matched very well, that can realize a high efficient transportation, reliability, lower electricity-consuming and building cost. So we must compare various methods of designing. This is a very big work. As far as we know, in the formal designing of product, the time of drawing is 34 percent out of total one of designing; the time of revising of drawing is 8-9 percent. In the word, the workings on the drawing take almost half of the total time of designing. Since belt conveyor, using a lot of standardized components, is a non-standardized product, drawing, especially general drawing, will take much time.AutoCAD is one of most popular software in our country at present. Although it has a very strong function of drawing, the synthetically processing ability to calculate, to process data and to draw is very weak. To satisfy special using, it is necessary to develop secondly. Visual Lisp, VBA and ObjectARX all embed in AutoCAD and they are very good tools of development.In this situation, we can use the development tool of VBA to develop the AutoCAD secondly and program. First, it is a selection type designing of steel-cored belt conveyor, this part of program let computer finish large quan-tity of repeated calculating, proofing, checking table and selecting and so on. Second, according to the result, draw the general drawing on the platform of AutoCAD parameter-realizably. This program can make designing calculation, selecting components and drawing into one and shorten its designing period, lighten work strength.