2. Gear meshing condition: Contact and meshing between gears are the main sources of noise. Uneven meshing, manufacturing errors, wear or damage may cause noise.
3. Gearbox structure design and quality: The design details and manufacturing quality of the gearbox, such as the rigidity of the housing, the layout of the internal partitions and the installation method, may affect the noise level.
4. Assembly accuracy and adjustment issues: The accuracy of gear assembly is crucial in the operation of mechanical equipment. Once improperly assembled, a series of problems will occur, the most common of which is noise. For example, a small gap between two gears will produce a sharp and continuous sound, while a large gap will cause a dull hum. This noise not only hinders the normal operation of the equipment, but also accelerates the aging of the equipment. In addition, inaccurate adjustment of the axial or radial clearance of the gearbox parts such as bearings, or failure of the lubrication system may also cause rotation noise. This is caused by the friction and collision of internal parts. If not handled in time, it will cause serious damage to the gearbox.