Roots vacuum pump vibration reduction method

When the machine is in motion, the fuselage will vibrate. Slight vibration will not have any bad effect on the machine. However, if the vibration frequency is too high, it will damage the machine. Today, we will mainly analyze the vibration reduction method of Roots vacuum pump, and believe that it can also be applied to other equipment.

1. Strengthen pipeline stiffness

Considering that it is difficult to strengthen roots vacuum pump, the method of welding “rib” on the outlet steel pipe is adopted. Along the direction of water in and out of the vacuum pump outlet, 8 steel plates with thickness of 32 mm and width of 100 mm are used to weld the expansion pipe and flange at both ends of the connecting steel pipe between the outlet valve and the vacuum pump. Improve the rigidity of steel pipe, reduce deformation and resist displacement. According to the measurement, the displacement of a point of Roots vacuum pump decreases to 0.35 after rib.

2. Reform the transmission system

In order to reduce the vibration of the vacuum pump between the motor and the drive shaft, the rigid connection between the transmission shaft and the transmission shaft is changed into elastic connection. Using gb4323-84 elastic sleeve pin coupling, the larger compensation displacement is 0.6 mm, and the compensation angle is 1 ° 30. In this way, the vibration of motor and drive shaft can be compensated by elastic coupling, and will not be directly transmitted to vacuum pump.

The above content tells us that the vibration reduction method of Roots vacuum pump is mainly realized by strengthening the stiffness of the pipeline and improving the transmission system. In addition, damping measures can be selected according to the use environment of production materials, which is also effective.