Efficient denoising handheld electric saw

Abstract

The invention discloses an efficient denoising handheld electric saw, comprising a saw blade and a handheld part; the saw blade end of the handheld part is connected with the saw blade by a rotary shaft; a motor is arranged in the handheld part and used for driving the saw blade to rotate; the saw blade is provided with a plurality of hole slots; the hole slots are non-uniformly asymmetrically distributed on the saw blade and are filled with powder materials; the powder materials are closed in the hole slots by screw caps; a liquid spraying device is fixed at the center of the saw blade and is a cylindrical hollow part; a plurality of small holes are formed in the side surface of the cylindrical side surface of the liquid spraying device; stop parts are arranged on the small holes; partial edges of the stop parts are fixed with the edges of the small holes; damping coils are also arranged among the hole slots; the damping coils are fixed among the screw caps in sequence. The efficient denoising handheld electric saw has the advantages of great denosing capability, convenience in use and improved efficiency.

Description

technical field [0001] The invention relates to an electric saw, in particular to a hand-held electric saw with high efficiency and noise reduction. Background technique [0002] Hand-held electric saws are widely used in aluminum casting fields, extrusion workshops and construction fields. They have the advantages of fast cutting speed, high production efficiency, and easy portability. However, the noise pollution generated by this kind of saw during the cutting process is extremely serious. The maximum noise level Reaching 120-130dB, on the one hand, it will bring harm to the physical and mental health of workshop workers and residents around the workshop, and on the other hand, it will also affect the smooth development of on-site work. Workers working in this environment for a long time will have various psychological and physical problems. Diseases pose a potential threat to production safety. [0003] Most of the existing hand-held electric saw blades are provided wit...

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Problems solved by technology

[0002] Hand-held electric saws are widely used in aluminum casting fields, extrusion workshops and construction fields. They have the advantages of fast cutting speed, high production efficiency, and easy portability. However, the noise pollution generated by this kind of saw during the cutting process is extremely serious. The maximum noise level Reaching 120-130dB, on the one hand, it will bring harm to the physical and mental health of workshop workers and residents around the workshop, and on the other hand, it will also affect the smooth development of on-site work. Workers working in this environment for a long time will have various psychological and physical problems. disease, a potential threat to production safety

[0003] Most of the existing hand-held electric saw blades are provided with concave holes on the saw blades, thereby breaking the symmetry of the circular saw and suppressing resonance waves, resonance and standing waves. Although this measure can greatly reduce noise, this method The noise reduction effect is not obvious, and needs to be further improved and improved

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