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...

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide a vibration-attenuation and vibration-isolation gearbox for input and output shafts in order to overcome the problem in the prior art that the effect of effectively reducing noise is not good by strengthening the strength and rigidity of the gearbox housing. , which can effectively reduce the noise of the gearbox

[0006] The second purpose of the present invention on the basis of the first purpose is to overcome the problems in the prior art that the shaft seal of the input shaft needs to be replaced once oil leakage occurs from the shaft seal of the gearbox input shaft, which is time-consuming, laborious and heavy workload, and provides An input and output shaft vibration attenuation and vibration isolation gearbox that can effectively solve the problem that the shaft seal needs to be replaced when the oil leakage of the input shaft of the current reducer is time-consuming, laborious, and heavy workload

[0007] The third purpose of the present invention on the basis of the first and second purpose is to provide an input and output shaft in order to overcome the problem that the damping element of the gearbox in the prior art has poor vibration damping and isolation effects in the middle and high frequency regions. Vibration attenuation vibration isolation gearbox, which can not only reduce the vibration of the gearbox in the low frequency region, but also effectively improve the vibration reduction and isolation effect of the gearbox in the medium and high frequency region

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