Crushing Equipment
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Crushing Equipment
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Zhengzhou Yifan Machinery has endeavored to design and manufacture jaw crusher which is a type of highly-efficient and energy-saving crushing equipment. It is usually applied for coarse, intermediate and fine crushing of various rocks, including limestone, shale, basalt, pebble, bluestone, etc. The jaw crusher features simple structure, excellent strength, reliable performance, easy overhaul and maintenance, and low production and construction cost.
As we all know the wear phenomenon is inevitable in the daily operation of jaw crusher, only do we regularly maintain the machine we can prolong the service life of a jaw crusher to the maximum. So we should maintain the jaw crusher shaft, the eccentric shaft and bearing for long-term!
First of all, if the shaft wear is rare, you can do the turnery on the turning-lathe only to repair its geometry to make the shaft neck reach the correct geometry. And then correspondingly reduce the inner diameter of the bearing. However, after a few such treatment, the size of the shaft neck will decrease 5% of the original, then it cannot be turned any more, it should be replaced with new axis.
Once again, the jaw crusher is working in the shock load, the service life of the babbit alloy lining on the bearing is about two years at the maximum, if the service life exceeds the time limit, you will need to re-cast. If the eccentric shaft and the bearing, spindle and bearing wear, and its top gap is 1.5 times larger than the original of that, you need to add pad adjustment or replace them. If the oil groove wears and decrease at 1.5 mm, it should reopen a oil groove or adjust it. If the eccentric shaft clearance between the connecting rod head cover and the eccentric shaft wear to1.5 times greater than the assembly clearance, it also need to add pad adjustment or replace a new one. When the bushing babbit alloy has deep ripping or larger abrasions, it should be re-cast. As with the processing bearing quality has the following requirements: Babbitt alloy surface color should be uniform, no light, silver white; Babbitt alloy surface layer should be without ash, trachoma, crack, shrinkage and cracking phenomena.
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