Bogie and traction apparatus thereof

Abstract

The invention discloses a bogie and a traction apparatus thereof. The traction apparatus comprises a swing bolster and four springs. The swing bolster is transversely arranged along a bogie frame, thefour springs are respectively arranged at two sides of two transverse ends of the swing bolster, one end of each spring is connected with the swing bolster, and the other end is connected with the bogie frame. According to the traction apparatus provided by the invention, only three parameters of the vertical rigidity, the longitudinal rigidity and the transverse rigidity of the spring need to beconsidered when parameter matching is carried out, the matching process is simple and easy to implement, and an optimal matching result is convenient to obtain, so that the bogie equipped with the traction apparatus can obtain better dynamics performance and especially better hunting stability. Moreover, the traction apparatus provided by the invention is simple in structure, convenient to arrange and adjust, high in reliability, and beneficial to the strength design of the bogie frame and the swing bolster; and the bogie equipped with the traction apparatus is lighter in weight and relatively higher in load carrying capacity.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a bogie and a traction device thereof. Background technique [0002] In recent years, the increase in transportation demand has led to the rapid development of rail freight cars in the direction of faster speed and higher load capacity, thus putting forward higher and higher requirements for the stability and reliability of bogies in high-speed operation. [0003] At present, in the aspect of the research on the traction device of the bogie of fast track freight car, a kind of bolster pull rod type traction device is proposed. Please refer to figure 1 , figure 1 It is a top view of a bogie equipped with a bolster tie-rod traction device. [0004] Such as figure 1 As shown, the bolster pull-rod traction device includes a bolster 01 and two drawbars 02; the bolster 01 is arranged laterally along the bogie frame, and its middle is connected with the car body through the ce...

AI Technical Summary

Problems solved by technology

[0005] When the parameters of this bolster drawbar traction device are matched, there are many parameters that affect the dynamic performance, such as the length of the drawbar 02, the stiffness parameters of the joint between the drawbar 02 and the frame 03, and the parameters of the drawbar 02 and the bolster 01. The stiffness parameters of the joints, etc., make the dynamic matching process more complicated. In addition, the limitation of the drawbar structure makes it difficult for the bogie to achieve the optimal parameter matching, so that the ideal dynamic performance cannot be achieved.

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