A fan blade with dynamic balance self-adjusting device

Abstract

A draught fan blade with a dynamic balance self-regulating device comprises a fan blade main body and the dynamic balance self-regulating device which is arranged on the fan blade main body. The dynamic balance self-regulating device comprises a regulation code and a cursor code; the regulation code is located at the position, far away from the center of a fan blade rotating shaft, of the fan blade main body, the cursor code is located at the position, near the center of the fan blade rotating shaft, of the fan blade main body, the regulation code and the cursor code are both located on a total branching line of the fan blade main body, and an extension line penetrates through the center of the rotating shaft; the dynamic balance self-regulating device is movably arranged in a groove of the fan blade main body in a close connection mode; the cursor code and the regulation code are each provided with a locking structure. By arranging the dynamic balance self-regulating device in the draught fan blade, the dynamic balance regulating process of the draught fan blade becomes easier, manpower and material resources are saved, the equipment maintenance time is shortened, the equipment accident occurring probability is reduced, and safety and reliability are achieved.

Description

technical field [0001] The patent of the present invention relates to the technical field of fan blade manufacturing, in particular to a fan blade equipped with a dynamic balance self-adjusting device. The self-adjusting device on the fan blade can achieve good stability effect. Background technique [0002] In modern production and life, the application of fans is becoming more and more popular, ranging from primary fans and secondary fan transmission devices in cement enterprises, waste heat recovery of waste heat power plants, and axial flow fans for equipment cooling in steel mills, to small households Fans, ceiling fans, smoke extractors, etc. However, during the use of the fan blades, the torque ratio of each fan blade is often different due to the manufacturing quality or wear and tear of the later use, which causes equipment vibration during operation, and equipment vibration will not only cause noise pollution, Vibration for too long will also cause damage to its ...

AI Technical Summary

Problems solved by technology

However, during the use of the fan blades, the torque ratio of each fan blade is often different due to the manufacturing quality or wear and tear of the later use, which causes equipment vibration during operation, and equipment vibration will not only cause noise pollution, Vibration for too long will also cause damage to its own equipment and a corresponding chain reaction, causing the entire production line to be damaged

[0003] In order to reduce the damage caused by vibration during the operation of fan blades, most of the existing technologies use lead blocks to be welded on the fan blades, and the operation of the fan blades is stabilized through torque leveling. This post-maintenance method requires the use of lead blocks of different sizes gradually Leveling and dynamic balance experiments, the extra weight of welding wire after welding will cause secondary inaccuracy, and it is difficult to meet the precise dynamic balance requirements that require more stringent equipment vibration monitoring

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