The invention discloses a rotating base structure of a crane. The rotating base structure comprises supporting legs, steel ball holes, an outer rotating shaft, a shaft hole, bases, a rotating device, an inner rotating shaft, an upper connecting shaft, a sleeve, a lock nut, a thrust bearing and a lower connecting shaft. The bases are arranged at the bottom ends of the supporting legs, and the rotating device is arranged at the top ends of the supporting legs. The outer rotating shaft and the inner rotating shaft are arranged in the rotating device, and the inner surface of the outer rotating shaft is closely connected with the outer surface of the inner rotating shaft. The shaft hole is formed in the inner rotating shaft, and the multiple steel ball holes are formed in the surface of the inner rotating shaft. The lower connecting shaft is arranged in the shaft hole, and one end of the lower connecting shaft is arranged in the sleeve. The lock nut is arranged in the sleeve, and the thrust bearing is arranged at one end of the lock nut. The upper connecting shaft is arranged in the sleeve, and the lower connecting shaft and the upper connecting shaft are connected in the sleeve. Compared with the prior art, the rotating base structure has the beneficial effects that the novel thrust bearing can provide efficient thrust force, and accordingly the rotating base structure can run stably.
Rotating base structure of crane
2016-01-27
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |