Vibration attenuation and vibration isolation type gearbox for input shaft and output shaft

Abstract

The invention discloses a vibration attenuation and vibration isolation type gearbox for an input shaft and an output shaft capable of obtaining an effect of effectively reducing the noise of the gearbox. The gearbox comprises a gearbox shell, an input shaft hole, an input shaft, an input shaft seal end cover, an output shaft hole, an output shaft and an output shaft seal end cover, wherein the input shaft hole is formed in the gearbox shell, the input shaft seal end cover is arranged on the outer surface of the gearbox shell, the output shaft hole is arranged on the gearbox shell and the output shaft seal end cover is arranged on the outer surface of the gearbox shell; the input shaft hole and the output shaft hole are internally and respectively provided with a vibration attenuation sleeve body, the vibration attenuation sleeve body sequentially comprises a supporting inner vibration attenuation layer, a plastic vibration attenuation layer and an outer vibration attenuation layer from inside to outside, the supporting inner vibration attenuation layer and the outer vibration attenuation layer are respectively made from powder metallurgy materials, and the plastic vibration attenuation layer is made from expanded plastics.

Description

technical field

[0001] The invention relates to a gear box, in particular to an input and output shaft vibration attenuation vibration isolation type gear box. Background technique

[0002] The vibration and noise of the gearbox are mainly caused by the friction, vibration and collision of the transmission gear. How to effectively reduce the vibration and noise of the gearbox and make it more in line with environmental protection requirements is a key research topic at home and abroad. Although the vibration and noise of the gearbox are mainly caused by the friction, vibration and collision of the transmission gear, due to the large volume of the gearbox casing and the easy amplified vibration of its wall, the gearbox casing is very important for the vibration generated in the entire gearbox. Noise is also affected to some extent. In view of this, some inventors have improved the gearbox housing, but the current improvement to the gearbox housing is often based on "strength...

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