A railway freight car bogie

Abstract

The invention relates to a rail wagon bogie which is characterized by comprising a framework assembly, two sets of wheel set assemblies, four sets of single-stage suspension devices, a set of traction device, and two sets of dual-stage suspension devices; the framework assembly comprises two oppositely arranged side beams and two oppositely arranged cross beams; the side beam is in a U-shaped structure, one set of wheel set assembly is arranged on the outer side of each of the two cross beams, one set of rotation arm is arranged at each of two ends of each side beam to locate each single-stage suspension device, the traction device is arranged in the middle of the framework assembly, and each of the two side beams is provided with one set of full side bearing to bear the dual-stage suspension device. The rail wagon bogie is simple in structure and can achieve low power action, a vehicle has a higher critical speed and excellent curve negotiating performance by reasonably selecting the locating rigidity of a nodal point of the rotation arm and the longitudinal, transverse and vertical rigidities of the dual-stage suspension devices, the running safety of a rapid wagon at the speed of 160km per hour is guaranteed, and the rail wagon bogie can be widely applied to rail wagons.

Description

technical field [0001] The invention relates to a bogie, in particular to a fast freight car bogie suitable for railways with a speed of 160 km per hour. Background technique [0002] At present, domestic fast truck bogies with a speed of 160km / h, no matter the three-piece type or the frame type, adopt the bolster, center plate and side bearing structure, which is relatively complicated and the center of gravity of the vehicle is high; especially because the side bearing provides The slewing resistance torque of the vehicle is limited, and the stability of the vehicle running in a straight line is relatively poor; while abroad, a large number of structures without bolsters and full side bearings are used. Therefore, in order to meet the needs of the rapid development of railway freight cars in my country, and to ensure the stability and smoothness of the high-speed operation of the vehicles, it is necessary to develop a bogie suitable for fast freight cars with a speed of 16...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic fast truck bogies with a speed of 160km / h, no matter the three-piece type or the frame type, adopt the bolster, center plate and side bearing structure, which is relatively complicated and the center of gravity of the vehicle is high; especially because the side bearing provides The slewing resistance torque of the vehicle is limited, and the stability of the vehicle running in a straight line is relatively poor; while abroad, a large number of structures without bolsters and full side bearings are used.

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