Core Component Analysis of the ZBK Roots Blower

1.  Rotor System
The ZBK Roots Blower employs a triple-leaf helical rotor design, where two rotors rotate in opposite directions to create volumetric changes. The precisely machined involute profiles maintain a micro-gap of 0.2-0.5mm between rotors, preventing metal friction while minimizing gas leakage. Compared to traditional two-leaf rotors, the triple-leaf structure reduces airflow pulsation by 30%, enabling smoother gas transportation.

2. Synchronous Gear Set
The high-precision transmission system consists of a driving gear and a driven gear, both crafted from 45# steel and subjected to quenching treatment to achieve a surface hardness of HRC55-60. Gear meshing accuracy adheres to GB/T 10095-2008 Level 6 standards, ensuring a constant phase difference between rotor rotations and preventing gas backflow caused by phase deviations. This design maintains synchronization accuracy within ±0.5° even at 1,450 r/min.

3. Seal and Bearing System
The shaft-end seal utilizes a labyrinth +frame-type oil seal composite structure capable of withstanding a pressure differential of 0.05MPa. The bearing assembly combines NU2208E cylindrical roller bearings (for the main shaft) and 7206AC angular contact bearings (for the gear shaft), with a forced lubrication system maintaining operating temperatures below 65°C to ensure a continuous service life exceeding 20,000 hours.