Single-wheelset trailer bogie

The embodiment of the invention provides a single-wheelset trailer bogie which comprises a square-shaped framework defined by side beams and end beams, a wheelset axle box only comprising one wheelset and a traction device, the two ends of the framework end beams are horizontally and fixedly connected with the two ends of the framework side beams respectively, and the middle portions of the end beams are concave downwards to form U-shaped structures. A traction pull rod seat is arranged on an end beam of the framework, a wheel set lifting installation seat is arranged on a side beam of the framework, a wheel set axle box is connected with the framework through the wheel set installation seat, and the traction device is respectively connected with the traction pull rod seat and the trailer body. The bogie is lighter in dead weight, better in performance, easier to overhaul and suitable for being applied to railway vehicles. 本申请实施例提供了单轮对拖车转向架，其包括由侧梁和端梁围合而成的"口"字形构架、仅包括一条轮对的轮对轴箱组成、和牵引装置，其中构架端梁的两端分别与构架侧梁的两端水平固定连接并