A Small Rescue Equipment with Increasing Torque Based on Googol Gear Reduction Unit

In disaster situations, small rescue equipment is favored for its compactness and portability and can effectively improve rescue efficiency in narrow spaces such as earthquake rubble and mine emergencies. However, miniaturization can limit the power output of a device, especially when more torque is needed to overcome heavy loads. The focus of this study is to improve the torque output of a small rescue device by employing a Googol gear reduction mechanism. The mechanism converts high-speed, low-torque inputs to low-speed, high-torque outputs, which is critical to enhancing the torque of the device and enabling it to operate under high load conditions in tight spaces. Considering the size, weight, allowable stress, safety factor, and other factors, design Googol gear reduction for small rescue equipment. The design includes the selection of materials that can withstand repeated loads without yielding too much or causing excessive fatigue of the gear set during use, thus ensuring safety and reliability. To validate the design, ANSYS Finite Element Analysis (FEA) was used to test the elasticity and durability of the gears under operating pressure, and ANSYS FEA was used to derive the direction of improvement for future work and to ensure its efficacy in critical rescue missions.