Pump drive way

pump drive for two of the roots vacuum pump rotor is done by a pair of high precision gear its relative synchronization operation. Drive shaft through the shaft coupling and motor connection. On the transmission structure arrangement basically has the following two kinds: one is the motor and gear in the rotor of the same side as shown in figure. Passed directly driven by the motor rotor side gear drive, the active rotor shaft torsional deformation is small, the clearance between two rotors will not change by drive shaft torsional deformation is big, so the clearance between the rotor in the process of operation. The biggest drawback of this kind of drive is: a. There are three bearing on the drive shaft, increased the difficulty of processing and assembling of the pump, gear and disassembling and adjust the inconvenience; b。 The overall structure is not symmetrical, the center of gravity to the motor and gear box side of the pump.
the other is a motor and drive gear installed on both sides of the rotor respectively. This form makes the overall structure of the pump symmetry, but drive shaft torsional deformation is bigger. In order to ensure the uniform clearance, in the process of rotor in operation for shaft should have enough stiffness, the connection between shaft and rotor to tighten ( There are welding rotor and shaft or cast structure) 。 This structure disassembly is very convenient, so widely used. Need to know more about hydraulic pump, vacuum pump oil seal type, the content of the dry vacuum pump, can click on the following web site: China pump pneumatic valve information network, China chemical equipment network, machinery network in Asia.