Patent ID: 8336464
Filing Date: 2012-12-25
Classification: B61F

Abstract:
1. A freight car bogie comprising: two wheel set assemblies, two side frames disposed at outer sides of the wheel set assemblies, adaptors disposed at the outer sides of the wheel set assemblies and below the side frames, a bolster fixedly connected to center positions of the two side frames, brake riggings located at two sides of the bolster, a first connecting rod, and a second connecting rod, wherein the first connecting rod and the second connecting rod are crossed in an “X” form passing through reserved holes at two sides of a belly of the bolster, the first connecting rod and the second connecting rod are separated from each other at a crossing portion, the first connecting rod comprises a first end and a second end, the second connecting rod comprises a third end and a fourth end, the first end and the third end are resiliently connected to one of the side frames and symmetrical about a center line of the bolster, and the second end and the fourth end are resiliently connected to the other side frame and symmetrical about the center line of the bolster; the first connecting rod and the second connecting rod are in the same plane; a cross hole is formed at the crossing portion of the first connecting rod and the second connecting rod passes through the cross hole, or notch is formed at the crossing position of the first connecting rod and/or the second connecting rod, and the first connecting rod and the second connecting rod are crossed with each other at the notch; and two supporting seats symmetrical about the center line of the bolster are fixedly disposed on each of the side frames respectively, the ends of the connecting rod and supporting seats are provided with mounting holes, and a stepped shaft rod passes through corresponding the mounting holes in order to connect with the connecting rod and the supporting seats; and tapered rubber sleeves are sandwiched between the inner wall of the mounting holes and the outer wall of the shaft rod.