A fan vibration and noise reduction device

Abstract

The invention discloses a damping and noise reduction device for a fan. The damping and noise reduction device comprises a fan body, a plurality of damping blocks are fixedly installed on the periphery of the fan body, a sleeve is arranged outside the fan body, the fan main body is located in the sleeve, the fan main body is collinear with the center line of the sleeve, the damping blocks are fixedly connected with the inner wall of the sleeve respectively, the bottom of the inner wall of the fan body is connected with the lower end of first rotating shafts through bearings, the first rotatingshafts are parallel to each other, the upper end of the first rotating shafts are fixedly connected with the bottom surface of air guide plates respectively, the air guide plates are parallel to eachother, and a plurality of first through holes are formed in the top of the periphery of the fan main body. The damping and noise reduction device is particularly suitable for a ship working cabin, acab and a passenger cabin, the air guide plates are driven to swing in a reciprocating mode by utilizing the vibration of the fan main body, so that the direction of the air is changed, due to the arrangement of the shifting rod, the swing range of the arc-shaped rack can be enlarged, the swing angle of the air guide plates is increased, the function range of the fan main body is wider, the numberof the ship fans can be reduced, and the cost is saved.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, in particular to a shock and noise reduction device for a fan. Background technique [0002] In order to make the ship work and live normally, it is necessary to strengthen the ventilation, ventilation and cooling of the cabin, so it is necessary to configure the fan, and the most widely used one is the axial flow fan. However, when the axial flow fan is running, it will generate large vibration and noise, seriously affecting the work and life of the crew, and even causing adverse effects on the health of the crew. Moreover, the vibration source that produces noise is one of the root causes of fatigue damage to the ship structure, which has a great impact on the service life and safety of the ship. Therefore, a set of effective vibration and noise reduction measures is urgently needed to reduce the ship structure vibration caused by the vibration source, and reduce the air noise and structu...

AI Technical Summary

Problems solved by technology

However, when the axial flow fan is running, it will generate large vibration and noise, seriously affecting the crew's work and life, and even causing adverse effects on the crew's health.

And the vibration source that generates noise is one of the root causes of fatigue damage to the ship structure, which has a great impact on the service life and safety of the ship

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