The main reason of axial vibration is caused by the friction between the neutral and the tooth surface. When there is no axial restoring force or thrust bearing, large axial displacement will occur. When there is no axial restoring force or thrust bearing, large axial displacement will occur. Under different parameters such as unbalance, lubrication condition, clearance, error and load, the bending vibration test of the connecting shafting of the Curved-tooth Gear Coupling was carried out; Under the action of dry friction, the bending vibration of the half-coupling system is analyzed nonlinearly; When the Curved-tooth Gear Coupling rotates at high speed, special attention should be paid to the lubrication of the tooth surface.
The Curved-tooth Gear Coupling forms a layer of oil film between the contacting tooth surfaces through lubrication, and the tooth surfaces do not contact hard grinding directly to ensure that the tooth surfaces will not wear quickly. In order to ensure that the lubricating oil of the gear coupling can often and well lubricate each gear tooth during operation, the external seal of the gear coupling must be well sealed to prevent oil leakage. Because the centrifugal force of the Curved-tooth Gear Coupling rotating at high speed is very large, if the Curved-tooth Gear Coupling is not well sealed, the lubricating oil will be thrown out, affecting the normal lubrication; About 2/3 of the lubricating grease filling space is used to prevent gear transmission and rolling bearing from heating during operation, which may cause equipment burning.
When lubricating with grease, it should not be filled up. In order to prevent heating, this is actually wrong. When the Curved-tooth Gear Coupling is lubricated with grease, if the space is not filled with grease, the occluded tooth surface will lack lubrication and cause dry wear, which is caused by insufficient lubrication during maintenance. Because the teeth of the Curved-tooth Gear Coupling are fixedly meshed, unlike the gear transmission, the lubrication of the teeth of the Curved-tooth Gear Coupling is not in place, resulting in the Curved-tooth Gear Coupling often operating without lubrication, resulting in lack of oil, wear and damage of the engaged teeth, failure and certain losses.
During the maintenance of the Curved-tooth Gear Coupling, the lubrication of the gear coupling must be highly understood. The transmission of power depends on the contact of the tooth surface of each gear tooth, especially in the case of high-speed and heavy-load transmission, the tooth surface of the gear tooth bears a large force. In the process of power transmission, due to a certain deviation in the alignment of the two shafts connected by the coupling, there will be a certain displacement of each contact tooth surface, which will cause the wear of each gear tooth. Therefore, the Curved-tooth Gear Coupling generally needs good lubrication, especially under high speed and heavy load operation. Because the grease does not have fluidity, it will flow out in a short time after the grease is added, and the gear teeth transmit power without lubrication, which is easy to be damaged in a short time.