论文部分内容阅读
摩擦压力机主螺旋轴的铜螺母属设备易损件,其损坏形式多为螺纹牙齿断裂。螺牙断裂是自下而上发展的。若发现得早,螺纹牙齿断裂不多,将断裂螺纹牙因镗去,还可继续使用一段时间。断牙超过一个导程长度(相当于螺母总长的三分之一)后就不宜再修理使用,只能更换铜螺母。由于铜螺母在机身横梁中为过渡配合装配,并用防动销轴定位锁紧。因此,铜螺母的拆、装需要有一套专用工具。当没有能力对铜螺母和横梁的定位销孔进行
Friction presses the main screw axis of the copper nut is a consumable parts, the damage form mostly thread broken teeth. Fracture screw is bottom-up development. If found early, thread rupture is not much, will break thread due to boring, but also continue to use for some time. Broken teeth more than one lead length (equivalent to one-third of the total nut length) should not be repaired after use, can only replace the copper nut. Because of the copper nut in the fuselage cross-beam with the assembly, and the use of anti-locking pin positioning lock. Therefore, the demolition of copper nuts installed need to have a set of special tools. When not capable of locating pin holes for copper nuts and beams