Multi-mounting-angle pump rotor dynamic balancing device

Abstract

The invention relates to a multi-mounting-angle pump rotor dynamic balancing device. A driving module is connected with a rotor which is mounted on a rotor mounting module and needs dynamic balancing through a coupler, and is used for adjusting the rotating speed and driving the rotor to perform dynamic balancing according to dynamic balancing requirements; the rotor installation module and the driving module are installed on the base of the adjustable test base to form a pump rotor dynamic balance mechanism, a hydraulic mechanism is installed on the back face of the adjustable test base, and the hydraulic mechanism drives the pump rotor dynamic balance mechanism to achieve adjustment and fixation at any angle within the range from the horizontal type to the vertical type, and is used for simulating the actual operation posture and characteristics of a pump rotor of the ship pump at different installation angles to carry out dynamic balance debugging and correction so that the shaft frequency vibration of the ship pump is reduced. Compared with a traditional horizontal dynamic balance device and method, dynamic balance debugging and correction can be carried out according to actual operation postures and characteristics of pump rotors at different installation angles, the shaft frequency vibration of the marine pump is further reduced, and thus the vibration noise of equipment is reduced, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to a rotor dynamic balance device, in particular to a multi-installation angle pump rotor dynamic balance device. Background technique [0002] Low noise is one of the main goals pursued by the green and sustainable development of marine pumps. In recent years, a series of pre-research work on vibration and noise reduction has been carried out for marine pumps. The overall vibration level of the equipment has been significantly reduced, especially the high-frequency vibration. It has been well controlled, but the problem of low-frequency vibration has become more and more prominent. The magnitude of low-frequency vibration of some marine pumps is already comparable to high-frequency. Low-frequency vibration not only affects the overall vibration and noise, but also causes harm to the service life of equipment. Moreover, low-frequency vibration is difficult to attenuate and eliminate through damping structures and vibration isolati...

AI Technical Summary

Problems solved by technology

However, at present, horizontal dynamic balancing is used for the dynamic balancing of pump rotors at home and abroad, and the existing related dynamic balancing equipment can only support the dynamic balancing of pump rotors in a horizontal posture.

Although there are some vertical dynamic balancing devices, they are mainly used for low-speed dynamic balancing or dynamic balancing for disc rotors, which cannot meet the dynamic balancing requirements of marine pump rotors based on the actual installation posture.

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