Design and material analysis of belt shifter assembly for enhancing the belt life with legato movement of over head travelling cleaner

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Author: 
Sathish Kumar P. and Sathish Kumar K.
Abstract: 

The OHTC (Over Head Travelling Cleaner) is a textile cleaning unit which is used in all textile frames such as spinning, speed frame, weaving, roving, winding etc. The main function of the OHTC unit is used to clean the cotton waste, bluffs and prevents them entering into the frames of the machines to produce fine threads for different application purpose. The Belt Shifter assembly is considered as the heart of OHTC unit, which is used to shift the belt frequently for to and fro motion of the unit. Polyurethane is the material used in Belt shifter unit. Material breakage, breakdown of the whole unit, frequent belt damage are some of the problems faced in using the polyurethane material. The analysis of the above material was carried out based on the properties and some design modification was done. A new material (Nylon) was selected based on the drawback of the old material and design modification was done on the material for rigidity and strength to resist high shear stress on the material. The 3-D modeling was carried out by CATIA V5R20 the analysis of shear force between the belt shifter and the reversing spring were carried out by means of ANSYS 14.5.

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