The use of split gear transmission to control the diameter of the gear, which can reduce the speed of the gear line, while at the same time can distribute the force. Therefore, when the gears are meshed, the sliding friction and the impact force appearing on the tooth surface are effectively controlled, thereby achieving the purpose of reducing the gear transmission noise. Improving the gear design structure and improving its machining accuracy have proved that the structural design of the gear is also directly related to noise reduction. For example, if the hole is properly drilled to improve the structure, the noise radiation surface can be reduced. If the damping material is added, the external radiation of noise can be reduced. The manufacturing precision of the gear can directly affect the noise intensity of the gear meshing. The worse the accuracy, the greater the meshing noise. Conversely, if the accuracy of the gear machining is appropriately increased and the gear error is reduced, the meshing performance can be improved, thereby reducing noise. For example, reducing the circumferential error of the gear will achieve the purpose of noise reduction, because the error of the circumference will cause the meshing impact of the gear. When the gear rotates to the tooth with the pitch error, the angular velocity will change sharply, and the impact will be This causes the entire gear shaft to vibrate. Especially when the gear rotates at high speed, it will arouse strong noise.
The tooth profile error has the greatest influence on the noise in the single term error of the gear, and the larger the tooth profile error, the larger the noise. But the two are not a simple proportional relationship. Gears with different errors have different rates of noise change at different speeds. The effect of tooth profile error on noise is shown in Figure 2. Gear tooth deformation also has an effect on noise. Whenever the gear is loaded, the bending deformation of the gear teeth far exceeds the tooth shape error. At this time, the main factor affecting the noise is determined by the deformation of the gear teeth after the force is applied. For gears with sufficient mechanical strength, the tooth profile error problem should be considered first. It is known in practice that the gear teeth are modified to be convex, which is beneficial to noise reduction.
Brake Master Cylinder For FORD
Brake Master Cylinder For Ford,Master Cylinder Brake,Cars Brake Pump,Cars Brake Master Cylinder
ZHEJIANG BENTENG INTELLIGENT BRAKE SYSTEM CO.,LTD , https://www.cnnakol.com