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我们在190柴油机的维修过程中,有下述几点体会: 1.190柴油机的曲轴主轴承(7210圆锥滚子轴承)磨损后,曲轴的轴向、径向间隙容易变大.由于机油泵转子轴是装在曲轴前端的轴向孔内,并由径向横销驱动,当曲轴径向跳动时,会直接造成机油泵轴与壳体中心孔和内、外转子的磨损.因此使用中要注意检查并调整曲轴的轴向游动间隙,使它保持在0.08～0.16毫米范围内.另外装配定时齿轮室盖时,两个圆柱定位销不能漏装,磨损后应及时修复,以保证机油泵转子轴与曲轴的同心. 2.更换曲轴、曲轴主轴承时,曲轴在机体内的前后位置往往会产生变动,因此要重新检查调整调速拨
Our 190 diesel engine maintenance process, the following experience: 1.190 diesel engine crankshaft main bearing (7210 tapered roller bearing) wear, the crankshaft axial and radial clearance tends to become larger because the oil pump rotor shaft is Installed in the front end of the crankshaft axial hole, driven by the radial cross-pin, when the crankshaft radial runout, will directly result in the oil pump shaft and the shell center hole and the inner rotor and outer rotor wear. So use should pay attention to check And adjust the axial displacement of the crankshaft to keep it in the range of 0.08 ~ 0.16 mm.In addition, timing gear chamber cover assembly, the two cylindrical pins can not be missed, wear and tear should be promptly repaired to ensure that the oil pump rotor shaft Concentric with the crankshaft 2. When crankshaft main bearing replacement, crankshaft position in the body will often have to change, so to re-check adjust the speed dial