A docking type axle box positioning device with built-in active adjustment of longitudinal displacement

Abstract

The invention relates to a docking type axle box positioning device which actively adjusts the longitudinal displacement, which comprises an axle box body and an axle box end cover respectively docked with two ends of the axle box connecting arm. The actuator is connected to the bogie frame for active adjustment and positioning of the longitudinal displacement. One end of the actuator is connected to the bogie frame through a rubber joint, and is connected with a rubber pile positioning part for lateral positioning. The other end of the actuator is connected to the bogie frame through a rubber joint. The joint is connected to the axle box body. Compared with the prior art, the present invention integrates the longitudinal positioning of the actuator and the lateral positioning of the rubber pile, adopts the sequential docking method of the axle box body, the axle box connecting arm and the axle box end cover, and installs the actuator on the axle box Inside the connecting arm, the actuator is used to synchronously realize the longitudinal positioning and the active adjustment of the longitudinal displacement, which can greatly simplify the structural layout of the active shaft box positioning device, facilitate disassembly and maintenance, and simultaneously achieve good longitudinal positioning and lateral positioning.

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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