Rail wagon bogie single-stage shaft housing hanging and positioning device

Abstract

The invention discloses a rail wagon bogie single-stage shaft housing hanging and positioning device. The rail wagon bogie single-stage shaft housing hanging and positioning device comprises a shaft housing, a vertical hydraulic buffer, spring guide pillars, steel circular springs, rubber-metal pad locators and hoisting check blocks, wherein the vertical hydraulic buffer is arranged between the top of the shaft housing and a side frame of a framework assembly; the spring guide pillars, the steel circular springs and the rubber-metal pad locators are arranged between the upper surfaces of spring bearing platforms on the two sides of the shaft housing and the bottom of the framework assembly; the hoisting check blocks are arranged below the spring bearing platforms on the two sides of the shaft housing. The two-stage threaded connection method of the spring guide pillars is of an integrated design, so that the structure is simple and compact, the performance is reliable, stable positioning performance is guaranteed, the requirements for different positioning stiffness in the vertical direction, longitudinal direction and the transverse direction are met, the unsprung mass can be reduced, wheeltrack dynamic force is lowered, and wheeltrack abrasion is reduced; an infrared shaft temperature detection hole is formed in the bottom of a saddle surface of the shaft housing, so that the shortcoming that an infrared thermometry technology cannot be adopted for an existing rail wagon bogie single-stage shaft housing in the line operation process is overcome, the bearing temperature of a rail wagon in an operating state can be detected in real time, a hot box fault caused by detection omission can be avoided, and rail transportation safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of railway freight car bogies, in particular to a railway freight car bogie-axle box suspension positioning device. Background technique [0002] At present, the railway freight car bogies in the world are basically developed in two modes: three-piece cast steel bogie and integral frame bogie, each of which has its own advantages in load capacity and speed. According to the development of domestic railway freight and the requirements of railway technology policy, the research on the technology of railway express freight wagon with a running speed of 160km / h has been put on the agenda. Due to the congenital defect of low anti-diamond stiffness of the three-piece cast steel bogie, which restricts the further improvement of the running speed of this type of bogie, most of them now tend to adopt the frame bogie scheme. [0003] As one of the important parts of the frame bogie, the primary axle box suspension sy...

AI Technical Summary

Problems solved by technology

However, the connection between the guide post and the rubber stack locator of this utility model is bolt fastening, which mainly plays the role of connection and anti-loosening, and cannot be used for overall hoisting of the bogie; in addition, the saddle surface of the axle box is the entire Circumferentially, the bearing is socketed in an all-encompassing manner. Due to the shielding of the axle box, the bearing with the axle box cannot directly detect the bearing surface with an infrared shaft temperature detection instrument, resulting in missed detection. Therefore, an additional one must be added. An electronic temperature measurement system is used to monitor the bearing temperature, which increases the cost and structure complexity

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