Pulley connection method of Shower room pulley room
Hook type, chain link type, wheel material type, ring type and Shower room pulley chain type, cable-stayed type, etc.
Dimensions and materials
pulley
Small size pulleys (d < 350mm) with small load are generally made into solid pulleys, which are made of 15, Q235 or cast iron (such as HT200).
The pulley under heavy load is generally made of nodular iron or cast steel (such as zg270-500), which is cast into a structure with ribs and holes or spokes.
Large pulleys (d > 800mm) are generally welded with section steel and steel plate.
The painting of pulley appeared earlier in an Assyrian relief in the eighth century BC. This relief shows a very simple pulley, which can only change the direction of force application. The main purpose is to facilitate force application and will not give any mechanical benefits. In China, the drawing of pulley device first Shower room pulley appeared in the portrait brick and pottery well model of the Han Dynasty. There are also discussions about pulleys recorded in the Mojing.
