论文部分内容阅读
推土机横梁是和铲刀提升缸底座拼焊在一起的。作业时,大部分力通过提升缸传递到横梁。长时间在力的作用下,一推土机的该焊缝产生疲劳而整体断裂,使推土机不能正常作业。由于横梁和提升缸底座连接在一起,或横梁的尺寸影响提升缸的安装,以及焊缝在横梁最薄弱的位置所受的拉力大,因此焊接工艺有较高的要求。为此,采取了以下措施: (1)彻底清除老焊缝。为降低母材受
Bulldozer beams and blade lifting cylinder base welding together. When working, most of the force is transmitted to the beam through the lift cylinder. Under the action of force for a long time, the weld of a bulldozer fatigue and overall fracture, the bulldozer can not work normally. As the beam and lift cylinder base connected together, or the size of the beam affect the installation of the lifting cylinder, and the weld in the weakest position of the beam suffered a lot of tension, so the welding process has higher requirements. To this end, taken the following measures: (1) completely remove the old weld. To reduce the base metal by