Embedded butt-joint type axle box positioning device capable of actively adjusting longitudinal displacement

Abstract

The invention relates to an embedded butt-joint type axle box positioning device capable of actively adjusting longitudinal displacement, comprising an axle box body and an axle box end cover which are in butt joint with the two ends of an axle box connecting arm respectively, wherein an actuator used for active adjustment and positioning connection of longitudinal displacement between a wheel setand a bogie frame is installed in the axle box connecting arm, one end of the actuator is connected to the bogie frame through a rubber joint and connected with a rubber stack positioning part used for transverse positioning, and the other end of the actuator is connected to the axle box body through a rubber joint. Compared with the prior art, longitudinal positioning of the actuator and transverse positioning of the rubber stack are integrated; the axle box body, the axle box connecting arm and the axle box end cover are in butt joint in sequence, the actuator is installed in the axle box connecting arm, and longitudinal positioning and longitudinal displacement active adjustment are synchronously achieved through the actuator, therefore the structural layout of the active axle box positioning device can be greatly simplified, disassembly, assembly and maintenance are facilitated, and meanwhile good longitudinal positioning and transverse positioning can be synchronously achieved.

Description

technical field [0001] The invention relates to an axle box positioning device, in particular to a butt joint type axle box positioning device used in an active radial bogie to actively adjust the longitudinal displacement. Background technique [0002] On rail vehicles, the axle box positioning device is a part that fits on the axle journal and is used to connect the wheel set and the bogie frame. As a movable joint connecting the wheel set and the bogie frame, the axle box positioning device can transmit traction force, vertical force and lateral force: transmit the traction or braking force from the wheel set to the bogie frame, and transmit the vertical motion load to the axle , and transmit the lateral force between the wheel set and the bogie frame; at the same time, it can realize the vertical movement and lateral movement between the wheel set and the bogie frame. [0003] In order to ensure the running stability at higher speeds in traditional rail vehicle bogies, ...

AI Technical Summary

Problems solved by technology

However, the longitudinal rigidity of the axle box positioning device of traditional rail vehicles is relatively large, which makes the force to push the wheel set to move relatively large, which will increase the size of the actuator and is not conducive to the integrated design of the bogie. In addition, the traditional axle box positioning device requires Separately realize the longitudinal positioning and lateral positioning of the wheel set, which will not only lead to a complex structure of the axle box positioning device, which is not conducive to disassembly and maintenance, but also cannot ensure good horizontal and longitudinal positioning effects at the same time, and cannot actively adjust the wheel set and bogie frame The longitudinal displacement between them is not conducive to the running stability of the vehicle

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