| 摘要 |
The utility model relates to a bogie frame of a railway freight car, which comprises a wheel pair, side frames, a swing bolster, a damping device, bearing saddles and a spring, wherein, two support rods are intersected to pass through a prepared hole at the waist of the swing bolster; both ends of the support rods and two side frames are elastically connected into a whole body; both ends of the side frames are supported on wheel pairs through elastic shearing pads and the bearing saddles. The utility model can prevent the two side frames from generating rhombic displacement, can also make operation stable and can reduce the abrasion of wheel tracks; the utility model can improve the vertical and horizontal dynamic performance of the railway freight car, simultaneously improve the curve negotiating performance of the railway freight car, increase the critical speed of the snaking motion of the bogie frame and reduce the abrasion among the wheel tracks. |
