變速箱齒輪常見的缺陷有：齒側和齒端面磨損、齒面剝落、輪齒折斷、齒圈松動或破裂等。修理時可根據(jù)具體情況采用下列不同的修復方法，下面濟南自動變速箱維修人員為您分析：

Common defects of gearbox gears include wear on the tooth side and tooth end face, peeling off the tooth surface, broken teeth, loose or broken gear rings, etc. The following different repair methods can be used according to the specific situation during repair. Below, Jinan automatic transmission maintenance personnel will analyze for you:

變速箱齒輪的修理

Repair of gearbox gears

（1）換向法。左右對稱的齒輪在出現(xiàn)單面磨損后，可將其左右齒輪調換位置或翻轉180°繼續(xù)使用。

(1) Reversing method. After unilateral wear occurs on gears that are symmetrical on both sides, the left and right gears can be reversed or turned 180 ° to continue use.

（2）鑲齒法。變速箱齒輪中如果負荷小、轉速不高的齒輪出現(xiàn)了斷齒，可將斷齒的齒根部位刨出或銑出燕尾槽，并以一定的過盈量壓入新齒坯，經(jīng)焊牢后整形可繼續(xù)使用。

(2) Tooth insertion method. If a gear with low load and low speed in the gearbox has broken teeth, the root of the broken teeth can be planed or milled out into a dovetail groove, and a certain amount of interference can be pressed into a new gear blank. After welding and shaping, it can continue to be used.

（3）鑲齒圈法。若變速箱上的塔形齒輪某部位出現(xiàn)輪齒磨損超限，可先將其退火，車去該部的全部輪齒，另制一個齒圈壓裝在車去的輪齒處，為防齒圈松動，可用電焊在接合處點焊，或沿圓周鉆孔用穩(wěn)釘固定。

(3) Ring gear insertion method. If the tooth wear of a certain part of the tower gear on the gearbox exceeds the limit, it can be annealed first, all the teeth in that part can be removed, and another gear ring can be made and pressed onto the teeth in the car. To prevent the gear ring from loosening, spot welding can be used at the joint or drilling along the circumference to fix it with stable nails.

（4）堆焊法。若變速箱齒輪的個別輪齒折斷或齒面、齒端磨損超限，可先用汽油將齒輪表面的污物、銹漬除盡，使其露出金屬光澤，再進行堆焊，然后經(jīng)機械加工整形再經(jīng)回火處理后可繼續(xù)使用。

(4) Overlay welding method. If individual teeth of the gearbox gear are broken or the wear of the tooth surface or tooth end exceeds the limit, the dirt and rust on the surface of the gear can be removed with gasoline first to expose the metallic luster, and then welded. After mechanical processing and shaping, and tempering treatment, the gear can continue to be used.

變速箱殼體的修理：

Repair of gearbox housing:

（1）軸承座孔的修理。當軸承座孔磨損過度時，可用鏜孔鑲套法修復。鑲套時先將套的外徑尺寸加工好，壓入座孔內，再將套的內徑鏜至標準尺寸即可使用。

(1) Repair of bearing seat holes. When the bearing seat hole is excessively worn, it can be repaired using the boring and sleeve insertion method. When inserting a sleeve, first machine the outer diameter of the sleeve, press it into the seat hole, and then bore the inner diameter of the sleeve to the standard size before use.

應注意的事項是：各軸孔的圓柱度偏差應小于0.03毫米；同時，兩座孔的共同軸心線與加工后表面的垂直度偏差在100毫米長度上應小于0.05毫米，不同軸各孔中軸線平行度偏差在全長上應小于0.06毫米。

It should be noted that the cylindricity deviation of each shaft hole should be less than 0.03 millimeters; At the same time, the deviation between the common axis of the two holes and the verticality of the processed surface should be less than 0.05 millimeters over a length of 100 millimeters, and the parallelism deviation between the axes of each hole on different axes should be less than 0.06 millimeters over the entire length.

（2）殼體裂紋的修理。變速箱的殼體出現(xiàn)裂紋時，可采用補板、焊補或膠補法修復。

(2) Repair of shell cracks. When cracks appear on the casing of the gearbox, they can be repaired using repair plates, welding repairs, or adhesive repairs.

補板時，先沿著裂紋在裂紋的兩邊對稱鉆幾個直徑4.9毫米的孔，攻M6螺紋，找一塊3毫米厚的鋼板，墊在變速箱殼體的裂紋上，并在殼體上新鉆螺孔的對應位置鉆直徑6.5毫米的孔，墊上石棉墊，用M6×1.0的螺釘將鐵板與殼體固定。

When repairing the plate, first drill several holes with a diameter of 4.9mm symmetrically along both sides of the crack along the crack, tap M6 threads, find a 3mm thick steel plate, pad it on the crack of the gearbox housing, and drill holes with a diameter of 6.5mm at the corresponding positions of the newly drilled screw holes on the housing, pad it with asbestos, and use M6 × 1.0 screws secure the iron plate to the shell.

焊補時，可先在殼體裂紋的兩端鉆直徑3.5毫米的止裂孔，然后沿著裂紋開V形坡口，再用鑄鐵焊條冷焊。膠補時也要先鉆止裂孔，開V形槽后再用環(huán)氧樹脂膠粘貼。更多相關事項就來我們網(wǎng)站http://njzhuiri.cn咨詢！

When repairing welding, a crack stop hole with a diameter of 3.5 millimeters can be drilled at both ends of the shell crack, followed by a V-shaped groove along the crack, and then cold welded with a cast iron welding rod. When repairing with adhesive, it is also necessary to first drill anti crack holes, open V-shaped grooves, and then use epoxy resin adhesive to paste. For more related matters, come to our website http://njzhuiri.cn consulting service