Jaw crusher in beneficiation equipment bear a variety of ores and medium-grained bulk materials, crushing, jaw crusher parts are each a very important mineral processing equipment for the main bearing concern is particularly rigorous , jaw crusher main bearing mostly used off sliding bearings , bearing lined mostly by Babbit made ​​this bearing scraping the higher technical requirements , poor or scraping gap adjustment improperly research watts or Burnt accident , we are now the gap from the top , side clearance , axial gap analysis to examine a jaw crusher bearing clearance measurement method:
1, the tip clearance measurement method
Increase or decrease the height of tip clearance bearing joints available at tile mouth to adjust the thickness of the gasket , the fewer the number pad , the pad compaction better equipment running more smoothly , so ensure that the case does not appear Burnt , gaskets better, tip clearance measurement methods commonly used method to measure the pressure of lead .
2, the side clearance measuring method
And the journal bearing gap between the side , which is usually measured using feeler gauge . Measurement, insert the feeler gap length of not less than one-quarter shaft diameter , bearing joints of side clearance should be uniform equal.
3, the axial clearance measuring method
Bearing radial clearance measurements generally match ruler measurement and pressure measurement and French lead .
( 1 ) Race ruler measurements : For larger diameter bearings, a larger gap to narrow feeler with direct detection . For the smaller diameter of the bearing , the gap is small, inconvenient with a feeler , but bearing backlash , we must use the proper thickness feeler .
( 2 ) Pressure measurement of lead : lead with pressure bearing clearance assay detection accuracy compared with a feeler , but more trouble . Should be used for detecting soft aluminum wire , the diameter should not be too large or too small , and most preferably a diameter of 1.5 to 2 times the gap , the actual work is usually detected with a soft wire .
According to the above clearance measurement methods, after years of practice that Hongxing Heavy top bearing shaft clearance should be 0.15% to 0.2 % for the top side clearance gap should be 60% ​​to 100% , the axial clearance should be 1 ~ 3mm for the most Jia .
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