对Ｊ－５０拖拉机后桥驱动轮的改进（１３３５００）吉林省和龙林业局花砬子林场刘大本目前所用集材５０拖拉机后桥驱动轮均是由轮体和齿圈组合在一起的，有用铆钉铆的，有用螺栓紧固的．经多年使用实践证明，这种驱动轮使用费用相当高，一年当中需更换两次以上齿圈，更换... Improvements to the rear axle drive wheels of the J-50 tractor (133500) Liu Da-bin, spent at the Forestry Bureau of Hualong Forestry Bureau of Jilin Province, and the rear axle drive wheels of the current 50-tractor used in the tractor are wheel and ring gears combined with rivets Of the useful bolt fastening. After many years of practice, it has proved that this kind of driving wheel is very expensive to use, and it needs to be replaced more than two times in one year and replaced ...