驱动轮磨损严重时,影响机车马力的正常发挥,甚至经常脱链,严重的影响作业。几年来我们在修理驱动轮上费了很多工时。起初是用电焊焊补,安装后用不了多久又磨损了(有的只能用两个季度)。直到去年冬检时,我场修理厂电焊工刘宪堂提出用镶套焊接法修理它的合理化建议后,才初步解决这一问题。其法如下:先取两铁锻打成 Driving wheel wear serious, affecting the normal horsepower locomotive, or even often off, a serious impact on operations. Over the years we have spent a lot of man-hours on the drive wheels. At first, it was made up of electric welding. After installation, it did not take long before it was worn again (some only used two quarters). Until the winter inspection last year, my field repair shop welder Liu Xian-tang put forward a set of welding method to repair its rationalization proposals before the initial solution to this problem. The method is as follows: First take the two railway forged into