A vertical pump shaft vibration mitigation device

Abstract

The invention provides a vertical-type pump shaft vibration reduction device which comprises brackets, vibration reduction mechanisms and boxes. Each vibration reduction mechanism comprises an elasticcomponent, a driving device, a displacement sensor and a control circuit. A pump shaft is sleeved with the boxes. One end of each elastic component is connected with the corresponding box, and the other end of each elastic component is connected with a sliding block. The two ends of each sliding block are connected with guiding rails correspondingly. One end of each guiding rail is connected withthe corresponding bracket, and the other end of each guiding rail is in clearance fit with the pump shaft. One end of each driving device is connected with the corresponding bracket, and the other end of each driving device is connected with the corresponding sliding block. Each control circuit is connected with the corresponding displacement sensor and the corresponding driving device. Each displacement sensor is mounted on the corresponding box and used for measuring the radial vibration amplitude of the pump shaft and transmitting the radial vibration amplitude of the pump shaft to the corresponding control circuit. When the control circuits receive the situation that the radial vibration amplitude of the pump shaft reaches a preset value, the driving devices are controlled to drive the sliding blocks to drive the elastic components to apply force to the pump shaft, thus the radial vibration amplitude of the pump shaft is suppressed, the radial load borne by a bearing is reduced, the life of the bearing is prolonged, and the operation stability of a vertical-type pump is improved.

Description

technical field [0001] The invention belongs to the field of water pump research, in particular to a vertical pump shaft vibration mitigation device. Background technique [0002] In order to save space, reduce floor space, facilitate pipeline layout, and meet the application of narrow occasions, vertical pumps with this advantage have been widely used in many occasions. When the vertical pump unit is in normal operation, the body is stable, the sound is continuous and uninterrupted, and its vibration value is within an allowable range, but abnormal vibration will cause the unit to malfunction, affect the safety of the unit, cause operational accidents, and shorten the life of the equipment. service life. [0003] Based on the prior art, an object of the present invention is to propose a device for slowing down the vibration of the pump shaft of a vertical pump. The device has a simple structure and is easy to install. load, increase the service life of the bearing, and ma...

AI Technical Summary

Problems solved by technology

When the vertical pump unit is in normal operation, the body is stable, the sound is continuous and uninterrupted, and its vibration value is within an allowable range, but abnormal vibration will cause the unit to malfunction, affect the safety of the unit, cause operational accidents, and shorten the life of the equipment. service life

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