1. The damaged part of the gear (straight tooth) is mostly at the junction of the two tooth ends, or there are marks, or the gear teeth are short. The reason is that there is no good operation method when the driver manipulates the shift lever, and it is caused by the mandatory gear shift all the year round. The two gears rotate at different rates. When the gears and gears are engaged with each other, the tooth heads are severely damaged and damaged.
2. The transmission often meshed gears are not easy to teeth, such as five forward gear driving gear and driven gear, second shaft third gear and intermediate shaft third gear, second shaft fourth gear or fifth gear and intermediate shaft fourth gear Or five gears. These gears are subject to wear for a long time under load, and excessive wear will also cause the teeth to fall off. Although the constant mesh transmission of the driving gear and the driven gear is not affected by the gear shift, but if the gear teeth of the driving gear are too thin due to wear, when the load of the low gear is increased or the clutch engagement is too strong, the gear teeth will fall The phenomenon is because the meshing gap between the two teeth is too large, and the impact force on the tooth surface is too heavy.
3. The external ring gear of the driving gear, the external gear ring of the fourth and fifth gears, the external gear ring of the third gear, etc. are also called sleeve teeth, and the internal ring gear matched with these external gear rings is also called sleeve teeth. Some types of transmissions have internal ring gears and external ring gears set oppositely, also known as the fourth and fifth gears of the main shaft. These sets of teeth, sets of teeth and sliding gears are gears, in fact, they are a coaxial coupling of gears and a coupling of shafts and shafts. They have a small outer diameter, a small number of teeth, and a short tooth length. The rotation of the tooth sleeve and the tooth sleeve is synchronized, so the wear rate is relatively low.
