平面轉(zhuǎn)彎帶式輸送機(jī)設(shè)計(jì)計(jì)算理論研究
[Abstract]:As the most important equipment for conveying bulk materials, belt conveyor is widely used in power, metallurgy, mining, coal, port and other fields. Due to the limitation of transportation task, terrain and geology, the transmission line can not be laid all along the straight line, so the turning belt conveyor appears. In the process of operation, the conveyor belt is usually not in the ideal center position, but there is a certain amount of deviation, when the deviation is too large, it may cause material and belt wear. The theoretical calculation of the deviation of conveyor belt can verify whether the design is reasonable or not, and has certain engineering significance. The theoretical calculation method of the deviation of the material and conveyor belt in the turning section is studied by taking the planar turning belt conveyor of the 5 roller group as the research object. The calculation method of gravity distribution coefficient is deduced by analyzing the section of material in turn section, and the force balance equation with offset is obtained by analyzing the force of material and conveyor belt in turn section, and then the calculation method of deviation is obtained. By changing the parameters of the roller group, the 5-roller group can be transformed into 4-roller group, 3-roller group and 2-roller group. The calculation theory in this paper is also applicable to the belt conveyor with less than 5 rollers. Through the analysis of plane turning, the influence of each parameter on the offset is obtained. Through the analysis of the fixed slope turn and the comparison with the plane turning example, it is found that the effect of the parameters except the slope degree on the deviation of the plane turn and the fixed slope turn is consistent. When the parameters of a fixed slope turn other than a slope turn are the same as a plane turn, the maximum deviation between a fixed slope turn and a plane turn does not exceed 10 points of the fixed slope turn offset, which is relatively small, and under the same parameters, The deviation of plane turn is larger than that of fixed slope turn, so when the slot angle is large, the deviation of fixed slope turn can be estimated by calculating the offset of conveyor belt of plane turn, and the calculation can be simplified. Combined with MATLAB and Visual Basic, the design and calculation software of turning belt conveyor is developed. The deviation of the material and belt of the belt is calculated, and the result is output in the form of Word document. It is convenient for the designer to process the data. The design calculation software can make the designer get rid of a lot of calculation, reduce the workload, improve the work efficiency and shorten the design period.
【學(xué)位授予單位】:東北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TH222
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