Agricultural machine broken bolt clever remove method

All kinds of agricultural machinery have large traction resistance when working in the field. If they are improperly maintained, it is prone to pull off the fixing bolts of the traction device. To extract broken bolts is not easy, a method of taking out broken bolts is introduced for reference. ?? 1. First remove the broken bolt off the surface of the sludge, with the center of the cross-section of the center to death, and then use an electric drill fitted with a diameter of 6-8 mm drill hole in the central section of the hole, pay attention to the hole must Drill through. After the hole is drilled, the small drill bit is removed, and the drill bit with a diameter of 16 mm is replaced, and the hole of the broken bolt is further expanded and drilled. ?? 2. Take the electrode diameter of 3.2 mm or less, the use of medium and small current in the broken bolt hole from the inside to the outside surfacing welding, the beginning of the surfacing site to take off half the entire length of the bolt can be. The arc should not be too long to avoid breaking through the outer wall of the bolt. After surfacing to the upper end of the broken bolt, continue to build a cylindrical body with a diameter of 14-16 mm and a height of 8-10 mm. After a good, hammering the end surface with a hand hammer causes the dead bolt to vibrate in the axial direction. Since the heat generated by the arc and subsequent cooling, coupled with the vibration at this time, will break the bolt and the thread of the body. Between loosening.?? 4. Careful observation, when found after a trace of traces of iron rust leakage from the fracture, you can take M18 nuts on the stigma piled welding, and welding the two. ??5 After the welding, it is slightly cool, and it can be twisted and twisted around the nut with a plum wrench. You can also twist the back and forth while tapping the nut face with a small hand hammer. This will remove the broken bolt. After bolting, use the appropriate silk hammer to machine the thread in the frame to remove rust and other impurities from the hole.

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