Received a Patent on the project entitled “Automation in Portable Oil Seal Assembly Machine” by the Department of Mechanical Engineering.
The rotary shaft seal is used for excluding dirt, dust, water of other particles, while retaining lubricant in rotary shaft equipment. It was developed as a means of protecting bearings of rotating shafts. The area between the sealing edge and the shaft is most important. The sealing effect is achieved by preloading the sealing lip making its internal diameter slightly smaller than the shaft diameter. The garter spring ensures constant force to shaft, flattening the sealing edge to a defined width. Oil seals prevent internal system fluids from leaking and keep external contamination from entering the system. Leakage and contaminants paths occur between the shaft and seal lip and between the seal and the housing. Oil seals need to seal both dynamically and statically. An oil seal normally consists of three basic components are rubber sealing element, the metal insert and garter spring. The purpose of the sealing element is to stop the fluid from leaking between the shaft and housing. The metal insert will give rigidity and strength to the seal while it is being bore or recessed groove. The garter spring will help make the rubber sealing element more effective. The oil seal assembly machines are used for assembling the oil seals and varieties of oil seal assembly machines are available in market such as electrically operated and hydraulic operated etc. The limitations of the oil seal assemble machines are biggest size, high cost and maintenance is difficult. In this portable oil seal assembly machine has compact in size, maintenance is easy, pneumatically operated and low cost.