Propose a geometry for the shaft shown in the attached file. Explain your proposal.

•A rock crushing machine is constructed using the following schematic. Propose a geometrical design for shaft number 1. Assume we will use ground pillow blocks. Do not forget to take into account: Shoulders, threaded sections, keyways, and other mechanisms. The estimated smallest diameter is 17 mm. Notice extra space at points a and g.

SG: Spur Gear

PLL: Pulley

PB: Pillow Block

 

SG1 SG2 PB1 PB2 a f PLL2 C e d M PLL1