Aluminum alloy runner, aluminum alloy has the characteristics of high quality and light mechanical properties, and also has high heat dissipation. The principle is to use the wire material recovery characteristic, and by means of the temperature difference, a torque difference is generated on the driven wheel, and the two-wheel continuous rotation is driven by the friction force. Thus simply transforming thermal to mechanical energy It is only necessary to rotate it. The hot water temperature is 65 °C-85 °C. The memory alloy wire at the bottom of the small metal wheel needs to be immersed in hot water and the driven wheel is inertially activated to start it. . The conveyor belt is made of transparent and environmentally friendly organic plastic, highly transparent, with high mechanical properties, light weight and ornamental. Inlaid bearings in the runner ensure the rotation of the runner with the least resistance, thus optimizing the test results.