HIGHT SPEED SHAFT ASSEMBLY SYSTEM

Team 507

Mechanical Engineering Department

About The Project

Danfoss Turbocor has created a project to assemble high speed shafts for their TT Series compressors. The TT Series compressors are efficient machines which operate oil free because the shafts float inside magnetic bearings. Danfoss Turbocor’s product allows the shafts inside the compressors to operate at twenty times the rpm of a car. The shaft assembly integrity is therefore critical to the compressor’s performance. In addition, the assembly process and layout of the workstation where the shafts are made must be designed. The assembly process will be safe, simple, and straightforward for the technicians building the compressors. The force and temperature calculations on the shafts determined the optimum temperature and orientation of the parts such that the shrink fitting process minimizes the force required to assemble the shafts. This means a smaller press is needed for the assembly. The smaller press results in reduced assembly costs, increased worker safety, and minimized chances of damaging components during the assembly process.