推土机驱动轮与销套磨损后,大多是在磨损部位进行堆焊修理。这样修理的工作量很大,且修好的链轮、销套易重新磨损。经过几次堆焊将破坏链轮的原始齿形,销套也严重失圆,链轨节距,节圆产生很大的误差,破坏了原有的传动精度,从而加剧了这一运动副的磨损,以致过早报废。为了避免破坏链轮的原始 After the bulldozer drive wheel and pin bush wear, most of the repairs are performed on the worn part. The amount of work required for such repairs is large, and the repaired sprockets and pin bushes are susceptible to wear. After several surfacing welds, the original tooth profile of the sprocket will be destroyed, the pin bushing will be seriously out of round, the chain pitch and the pitch circle will cause a large error, destroying the original transmission precision, and intensifying the motion. Worn and prematurely scrapped. In order to avoid the destruction of the original sprocket