变速箱齿轮常见的缺陷有：齿侧和齿端面磨损、齿面剥落、轮齿折断、齿圈松动或破裂等。
济南自动变速箱修理时可根据具体情况采用下列不同的修复方法：
Common defects of gearbox gears include wear of gear side and end face, peeling of gear surface, broken gear teeth, loose or broken gear ring, etc. Jinan automatic transmission can be repaired by the following different methods according to the specific situation:
（1）换向法。左右对称的齿轮在出现单面磨损后，可将其左右齿轮调换位置或翻转180°继续使用。
(1) Reversing method. After unilateral wear occurs to the left and right symmetrical gears, the left and right gears can be replaced or turned 180 ° to continue using.
（2）镶齿法。变速箱齿轮中如果负荷小、转速不高的齿轮出现了断齿，可将断齿的齿根部位刨出或铣出燕尾槽，并以一定的过盈量压入新齿坯，经焊牢后整形可继续使用。
(2) Tooth inlay method. If the gear with small load and low speed in the gearbox has broken teeth, the tooth root of the broken teeth can be planed or milled out of dovetail groove, and a certain amount of interference is pressed into the new gear blank, which can be used again after welding and shaping.
（3）镶齿圈法。若变速箱上的塔形齿轮某部位出现轮齿磨损超限，可先将其退火，车去该部的全部轮齿，另制一个齿圈压装在车去的轮齿处，为防齿圈松动，可用电焊在接合处点焊，或沿圆周钻孔用稳钉固定。
(3) Ring gear insert method. If the tooth wear of a certain part of the tower gear on the gearbox exceeds the limit, it can be annealed first, and all the teeth of that part can be turned off, and another gear ring can be made and pressed on the gear teeth to be turned off. To prevent the gear ring from loosening, spot welding can be used at the joint, or drilling along the circumference can be used to fix it with stable nails.
（4）堆焊法。若变速箱齿轮的个别轮齿折断或齿面、齿端磨损超限，可先用汽油将齿轮表面的污物、锈渍除尽，使其露出金属光泽，再进行堆焊，然后经机械加工整形再经回火处理后可继续使用。
(4) Surfacing method. If the individual teeth of the gearbox gear are broken or the wear of the tooth surface and tooth end exceeds the limit, the dirt and rust stains on the gear surface can be removed with gasoline first to expose the metal luster, then the surfacing welding can be carried out, and then the gear can be used after mechanical processing and shaping, and then tempering treatment.
This is how to repair the important parts of the gearbox gear. You can refer to these four contents. Please visit our website for more details http://www.jnbsx.com Ask!
