Composite rubber spring in vibration isolator for floating slab track

The invention discloses a composite rubber spring in a vibration isolator for a floating slab track. The composite rubber spring comprises a composite spring body, a first mounting table and a screw table, wherein the first mounting table is bonded to the upper end of the composite spring body, a second mounting table is bonded to the bottom end of the composite spring body, bearings are fixed tothe first mounting table and the second mounting table in a clamping and pressing mode, the screw table is arranged on the peripheries of the bearings, and threads are formed on the side wall of the periphery of the screw table. The composite rubber spring has the beneficial effects that the first mounting table, the second mounting table II, the screw table and the bearings are designed, therefore, the composite rubber spring can be mounted only in a screwing manner and the complexity of traditional welding and fixing is avoided, overhaul and maintenance of the composite rubber spring are facilitated; the damping per