Pulley drive pulley ratio is how to calculate the efficiency ratio determines the pulley, a pulley and efficient power transmission lines need to hold good, in the choice of when to pay attention to the pulley transmission power Bushes manufacturers, many people do not know the pass how power calculation, the following Jiaojiang Jingyi Machinery Factory to tell you about. Transmission ratio is calculated as i = Dl / D2 = n2 / nl where: i: transmission ratio; Dl: capstan (power machine pulley) mm; D2: driven wheel (water pump pulley) mm; n1: Active rotation number (turns / points); n2: passive rotation number (rev / min); when using a large flat belts Bushes, transmission ratio i is determined: the opening drive. i <5, or prone to slipping. Pulleys work best when combined with a pulley guards often applied in drilling work in the coal industry, and every time at work when the European standard Bushes, drilling team will use angles, iron, mesh and other materials, making the mine safety standards in line with pulley rig safety shield, which is why? Because clutch pulley rig shield during use due to stress or severe shock deformation take place, and could not be fully protective, clutch pulley motor output shaft leakage easily cause injury to personnel. Plus security guard tackled the technical problems plagued the safe operation, effectively improve the safety and reliability of underground drilling rig, improve work efficiency and ensure the safety of personnel on the pulley. Dezhou Hengda Machinery Welcome to cooperate with you! With Bushes | Bushes | Hengda machinery provided by the Texas Hengda Machinery Limited. Texas Hengda Machinery Co., Ltd. (www.sddzhdjx.com) (www.sddzhdjx.com) strong, credible, in Dezhou machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hengda Machinery and you hand into the brilliant, for a better future!