In oil-free screw compressors, the gas does not contact the lubricating oil during compression. The rotors of oil-free compressors do not directly contact, and there is a certain gap between them. The male rotor drives the female rotor through synchronous gear
The high-speed rotation of the sub-synchronous gears ensures the clearance between the rotors while transmitting power. The so-called "oil-free" of oil-free screw compressors means that the gas is not in contact with oil at all during compression, that is, there is no oil lubrication between the compressor's compression chamber or rotor. However, the bearings, gears and other components in the compressor are still lubricated by ordinary lubrication methods, only between these lubrication parts and the compression cavity,
Adopt effective isolation shaft seal. The main structure of the oil-free screw compressor is relatively complicated. The main body is mainly composed of the male and female rotors, the body and the end cover on the exhaust side, the front body,
The back cover, synchronous gear, bearing, bearing seat, shaft seal, balance piston and other components.