Evaluation Of The Performance Of Locally Manufactured Crawler Combing Machines In Some Field Performance Indicators

Abstract

This study included manufacturing a combing machine with two types of creeping teeth with shapes (circular and rectangular) by drawing and designing the machine and the shapes of its creeping teeth using the (Solidworks) program according to the measurements and dimensions required for the design, and then manufacturing the machine by the researcher and evaluating its field performance through a factor experiment with three factors, the first factor is the two types of reciprocating ploughs (patchwork and disc), the second factor is the forward speed at two levels (8.20, 13.02) km / h, the third factor is the shapes of the creeping teeth at two levels (circular and rectangular) in silty mixed soil, and its effect on the studied characteristics, which are the width of fragmentation, actual field productivity, and performance efficiency. The results showed that the rectangular tooth was significantly superior in recording the highest values ​​for all studied characteristics, significantly superior in its interaction with the reciprocating plough in recording the highest values ​​for all studied characteristics, and significantly superior in its interaction with the forward speed (8.20) km / The hour recorded the highest value for the width of the fragmentation and the efficiency of the performance and its moral superiority in its interaction with the forward speed (13.02) in recording the highest value for the field productivity. As for the triple interaction, the rectangular tooth was morally superior in its interaction with the rotary plough at the forward speed (13.02) km/h in recording the highest value for the field productivity, while the triple interaction did not show any significant differences in the characteristics of the width of the fragmentation and the efficiency of the performance