【文章內(nèi)容簡(jiǎn)介】 or a large rotation of the dislocation occurs, it will lead to smaller due to axial force caused by axial impact, and this impact In the highspeed rotation will be issued under the large noise. [4] Preload adjustment gear If highspeed driving gear rotating bearing small bearings and large axial preload between the selected gear may result in inappropriate repetitive impact or size of the axial bearing premature wear, which is not conducive to noise control will reduce the product life Therefore, the regulation of gear preload is critical, because every set of gaskets and other parts of different materials and heat treatment method, it is difficult to determine the standard gear starting torque, adjust the starting torque by replacing gaskets to Achieved, with the improvement of precision ponents and process control to improve stability, gasket thickness is gradually narrowing the scope of needs, such as precision gear housing to a steady increase in the near future we expect to see large gasket thickness Need to adjust or increase our production process as the material can be used directly sleeve to plete the purpose of adjusting the preload. Axial preload adjustment gear is a more plex process, a good fit in the selection of large or small bearing inside and outside the ring with the precision gear according to the actual poststarting torque to keep replacing the gasket repeated assembly and disassembly, this method makes Product realization process bees plicated and inefficient, so most enterprises to speed up the production cycle to improve production efficiency, the use of automatic selection pad machine to achieve the process. Side gears and plaary gear mesh gap adjustment Side gears and plaary gears during rotation by the gear assembly of precision and accuracy of its impact will be different degrees of noise, the gear assembly process forming part of the gear after finishing accuracy is difficult to adjust the axial side gears and plaary gear Mesh size can be more appropriate for the engagement gap, thereby reducing the rotating plaary gear and axle gear noise when the chances of mating. Axle gear assembly shim thickness can be adjusted to achieve an ideal meshing clearance. Active and passive gear meshing gap adjustment Active and passive gears meshing gears rotating the gap is too large if the engagement will occur in the highspeed impact of noise, if the gap is too small active and passive gear running gear will be a lot of heat, likely to cause tooth erosion, reducing their service life . First, the differential gear assembly of the passive case, due to the passive gear in the differential case radial deviation will lead to the differential gear assembly of passive and active gear after the clearance changes, so the differential case to install a passive gear Mouth of the body when the need for precise positioning. Differential gear in turn assigned to before, the need for active and passive gear installed to adjust distance so that distance closer to the actual installation process, so the closest match grinding gears when the state of the state, running up the most stable. Better engagement without the gap, you first need to install the auspices of the gear housing to measure the distance, then the size of ponents to be installed to determine the adjusted value of the pad stack thickness. To improve assembly efficiency, and often will adjust the point of standardized sizes and series to choose the time convenient to adjust the selection. The noise reducer gear generated mainly from the friction, vibration and impact, how to reduce and reduce noise, make it more environmentally friendly is also a key research topic at home and abroad. Reduce the run time of the gear reducer drive noise has bee an important research topic within the industry, many scholars at home and abroad regard the gear changes in the tooth meshing stiffness as a gear dynamic load, vibration and noise factors. With the modification of the method, dynamic load and speed to minimize fluctuations in order to achieve the purpose of reducing noise. In practice, this method proved to be a more effective method. But this way, process equipment on the need for modification, the majority of medium and small plants are often not implemented. After years of research, the parameters by optimizing the gear, such as the modification coefficient, high coefficient of teeth, pressure angle, center distance, to minimize the impact velocity meshing, meshing the impact velocity and impact velocity meshing certain value ratio is range, reduce or avoid the impact of the gears meshing pitch circle design, but also can significantly reduce the speed reducer gear noise. [3] 4