Production tests of advanced screw conveyor and chain transmission for lint transportation

The article shows the transmission scheme of a screw with a wavy (zigzag) shape of the surface of rotation and chain transmission with a compound roller, as well as an analysis of their structural properties. The results of experimental studies conducted to determine the operability of a chain drive with a composite roller installed in the drive mechanism of a new-design screw conveyor are described. It also describes the process of cleaning small and large litter of various kinds from the composition of lint on a recommended design based on experimental results. Development of an efficient structure of a screw conveyor that transports and cleans lint, and determines its parameters based on complex experimental studies. Experimental studies were conducted at the Tashkent Research Institute of Mechanization and Electrification of Agriculture using the tensometric test method. Here, the angular velocities of the screw shaft are determined with the help of tensor resistors. As a result of experimental studies, the laws of changing the angular speeds of the screw shaft and the leading star shaft of the fluff transportation and cleaning screw conveyor were determined in different working conditions. These laws were determined by the oscillograms presented in the article. In the article, the laws of change of angular velocities on the screw and leading star shafts of the screw conveyor carrying and cleaning cotton lint were determined experimentally. Graphs of dependence of angular velocities and their vibration ranges on performance and wave height on the surface of the screw were constructed. Based on the analysis, the optimal values of the parameters were recommended.

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