| 摘要 |
PURPOSE: A device for preventing a tightener nut for a cone crusher from being disengaged from a rotation shaft is provided to enable a screw engagement between the tightener nut and the rotation shaft to be maintained even when a vibratory or rotational force is transferred thereto by removing a gap between the tightener nut and the rotation shaft. CONSTITUTION: The device comprises: a main frame; a rotation shaft(20) having a screw(20a); a mantle core(35); a mantle(30); a tightener(100); a tightener nut(150) having a screw(150a); and a disengagement preventing unit for removing a gap between the rotation shaft(20) and the tightener nut(150) to prevent the rotation shaft(20) and the tightener nut(150) from being disengaged from each other, the disengagement preventing unit comprising a locker member(500) engaged with the tightener nut(150) by means of a screw, a plurality of engagement members(520) engaged with an upper surface of the rotation shaft(20), and a plurality of tensile members(530) engaged with the inside of the locker member(500) and having an end contacting the upper surface of the rotation shaft(20). |
