Roots vacuum pump two rotors through a pair of high-precision gear to achieve its relative synchronous operation. The drive shaft is connected to the motor via a coupling. In the transmission structure layout are the following two: One is the motor and gear on the same side of the rotor as shown. Driven rotor directly by the motor end gear to drive past, so that active rotor shaft torsion deformation is small, the gap between the two rotors will not change due to torsion and deformation of the drive shaft, so the gap between the rotor in operation The process of uniform. The biggest drawback of this transmission is: a. There are three bearings on the drive shaft, increasing the difficulty of the pump processing and assembly, disassembly and adjustment of the gear is also inconvenient; b. The overall structure is uneven, the pump center of gravity bias motor and gear Side of the box. The other is the motor and gear are mounted on both sides of the rotor. This form of the overall structure of the pump symmetry, but the drive shaft torsion deformation larger. In order to ensure uniform rotor clearance during operation, it is required that the shaft should have sufficient rigidity, and the coupling between the shaft and the rotor should be fastened (currently there is a structure in which the rotor and the shaft are welded or cast into one body). This structure disassembly are very convenient, it is widely used. Need to know more about the water wheel vacuum pump, oil seal vacuum pump, dry mechanical vacuum pump content, click on the following websites: China Valve Information Network, China Chemical Instrument Network, Asia Machinery Network. Tilting Bracket,vertical mechanisms,horizontal mechanisms,automotive checking accessories Kunshan Hongyi Tengda Mold Hardware Co.,Ltd , https://www.hdchecking.com
Pump drive mode