Gear Knowledge II
Processing examples of special requirements for the tooth shape of the drum
The bending strength is related to the modulus of the gear, the pressure angle, the root fillet, and the coefficient of coincidence. The gear adopts large modulus, large pressure angle and full root radius, which can effectively improve the bending strength. In addition, the powerful root of the gear tooth can increase the bending strength by 15~25%. The low-end gears are used at a low frequency and have a large value; the high-end gears are used frequently and take a small value.
Contact strength is related to the number of teeth of the gear, tooth surface roughness, contact length and contact height. At the same time, it improves the lubrication performance of the gear and improves the two-axis and intermediate shaft. The stiffness can effectively increase the contact strength, which is the same as the bending strength. (communication group: 553536294)
The center distance of the gearbox
The center distance is an important parameter of the gearbox. The large value of the center distance can effectively improve the rigidity of each shaft and ensure the normal meshing of the gear pair. At the same time, the contact strength of the gearbox can be effectively improved. At the same time, the bearings can be selected with large specifications to improve the life of each bearing. However, the weight of the gearbox is increased, resulting in an increase in cost.