Patent ID: 8561546

Claim:
A bogie, comprising a bolster, two side frames, four constant contact dampers, and four load springs, wherein two sides of two ends of the bolster are respectively provided with a wedge pocket having a bottom plate; the four constant contact dampers are respectively arranged in four wedge pockets above the bottom plate and the four load springs are respectively arranged below the bottom plate, and each of the four constant contact dampers comprises a wedge and a damping spring; the damping spring is arranged in an inner cavity of the wedge; one end of the damping spring bears against a top inner surface of the inner cavity of the wedge, and the other end of the damping spring bears against the bottom plate of the wedge pocket; wherein the bogie further comprises four through holes arranged on the bottom plate and four ejectors which respectively correspond to the four constant contact dampers; the position of each of the four through holes on the bottom plate corresponds to the position where the damping spring bears against the bottom plate and the load spring of the bogie is located; and one end of the ejector penetrates into the damping spring through the through hole, and the other end of the ejector bears against the load spring.