锥齿轮设计与噪音(国外英文资料).docVIP

锥齿轮设计与噪音(国外英文资料) Bevel gear design and noise [Abstract] in this paper, the main control points of the spiral bevel gear of the drive axle are analyzed through the analysis of the gear parameters, the gear assembly system and the gear lubrication, and some opinions of the author are put forward Spiral bevel gear design; noise; gear parameter; lubrication 1, preface The bus driving axle basically by truck drive axle, mainly low speed, noise, torque is insufficient. Therefore the development of dedicated bus with low noise, large torque gear has become a current to improve the overall performance of passenger cars are an important part of the. The main cause of the noise of the driving axle gear is the vibration of the gear in the operation, the selection of gear parameters, the installation mode of the gear and lubrication, etc. the following are analyzed separately. 2. The influence of gear parameters on the noise of gear drive The selection of gear parameters is the primary problem that determines the performance and noise of gears. 2.1 modulus and tooth number The bigger the modulus of the gear, the higher the strength, the smaller the deformation of the tooth in the transmission. In theory, the gear angular velocity will be smaller, caused by vibration and noise will be smaller, but in fact the greater the absolute value of modulus, the machining error will increase, will increase the load on the transmission, increasing vibration and noise; at the same time, by the acoustic theory, surface area the rotary body is bigger, have the same angular velocity when the noise is greater. When the number of teeth is fixed, increasing the modulus increases the area of the end surface and increases the emission ability of noise. On the other hand, the gear noise is also related to the linear speed of the gear pitch circle. The greater the line speed is, the greater the operating noise is, and the related tests show that the gear speed is doubled, and the gear noise is increas