The invention is applicable to the technical field of a constituent component of a cone crusher and discloses an eccentric bushing mechanism of the cone crusher. The mechanism comprises a bearing base, an eccentric bushing disposed inside the bearing base, a bearing sleeve which is sleeved in the eccentric bushing, an upper bearing and a lower bearing, wherein an eccentric step is disposed on one side inside the eccentric bushing, an inner ring spacer bush and an outer ring spacer bush are also disposed between the upper bearing and the lower bearing, and an eccentric part is also disposed between the inner ring spacer bush and the outer ring spacer bush. The eccentric bushing mechanism for a cone crusher provided by the invention has a rational structure, wherein the inner ring spacer bush and the eccentric part contacted to the eccentric bushing are used, so that the whole eccentric bushing mechanism can be divided into multiple mutually-independent components. In this way, when the eccentric bushing is worn, only relevant components need to be replaced, maintenance cost is reduced. Meanwhile, multiple positioning components are used, stability of bearing motions is guaranteed, accuracy of axial motions is increased, and thus production efficiency of the cone crusher is increased.
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