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How to maintain the fan of pulverizer?
Pulverizers are separated from people's lives,the fan of pulverizer at work, because of the rapid rotation, and bad working conditions, lack of strict closure, sandy soil cause serious wear and tear to the fan, so that the body and the impeller wheel rivet head off , As well as the rivet hole appeared fatigue crack. the maintenance of fans more difficult, if improper maintenance may be scrapped completely so that the fan.
Fans of the pulverizer are balancing test, because of its high-speed, so it demands a high balance, in particular, the impeller fan, peripheral imbalance is very sensitive, but its tiny imbalance in the heart of the Department of A sense of the requirements is not high. According to the characteristics of the impeller prone to failure, can be used to repair the following methods:
1, if the rivet head was impeller wear, you can-impeller and pressed through the wheel by surfacing welding, so wear and tear of the rivet head back to a normal state.
2, the rivet hole prone to fatigue cracks, the entire root can be used not new electrode for welding repair cracks, but I would like to impeller as the central axis line of symmetry, the Department crack repair welding electrode rest of the stay Here, too, used a relatively new welding rod to repair cracks that the rivet holes, after the rest of the welding electrode and symmetrical when the rest of the rivet repair welding rod as long as to ensure that the welding up of equal weight. If the symmetry of the rivet hole without cracks in the welding electrode should will be here to offset the rivet hole symmetrical crack up new welding weight. According to this method of re-symmetrical complement weld cracks can be repaired.
3, the impeller of a simple balancing test, the method is simple. After the teams since the impeller so struck by hand lightly on the rotation, where the balance can not be stopped until the lowest point and swing around. If so, can be biased in the opposite spot on the impeller and increase its weight balance, or angle grinder Moqu impeller emphasis on the welding marks, but also be able to achieve balance, so that fans can better carry out normal repair work. Note that the fans of the repair process can not be free to spot welding, welding marks will be left to the impeller, the impeller fan so as not to affect the balance, can not repair the purpose, resulting in greater losses.
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