Split type bearing saddle for wagon bogie

Abstract

The invention discloses a split type bearing saddle for a wagon bogie. The bearing saddle is installed in a side frame guiding frame and comprises a top, a saddle part, longitudinal stop parts and transverse stop parts, detachable wearing plates connected through round pins are arranged on the faces, matched with a side frame, of the transverse stop parts, transverse locating grooves are formed in the middles, in the side frame matching direction, of the transverse stop parts, and transverse stop part round pin installation through holes are formed in the vertical direction. The wearing plates are of T-shaped structures, feet of the T-shaped structures are provided with wearing plate round pin installation through holes, the T-shaped feet of the wearing plates are fixedly embedded into the locating grooves through the round pins, and the wearing plates are made of high polymer wear-resisting nylon materials. According to the split type bearing saddle, the wearing plate and transverse stop part split structure is simple in structure, the characters of the materials and the structure are sufficiently used, all the functions of a traditional bearing saddle can be guaranteed, and when the bearing saddle is worn, the whole saddle can not be scrapped due to the fact that only a worn part is replaced and repaired. Meanwhile, the service life of the wearing plates can be prolonged as far as possible.

Description

technical field [0001] The invention belongs to the technical field of railway vehicle design and manufacture, in particular to the design and manufacture of a railway freight car bogie, in particular to a split bearing saddle for a railway freight car bogie. Background technique [0002] The traditional "three big pieces" type railway freight car bogie adopts a shaftless tapered roller bearing structure, and the connection structure between the wheel axle and the side frame generally adopts a bearing saddle structure. In order to facilitate the vehicle to pass through the curve smoothly, there is a certain gap between the bearing saddle and the side frame pedestal in the horizontal and vertical directions. When the vehicle is running, the clearance will change, especially when passing through the curve, the change of the clearance will change with the change of the radius of the curve, so that the bearing saddle longitudinal and transverse stoppers will contact with the sid...

AI Technical Summary

Problems solved by technology

The traditional bearing saddle adopts an integrated structure, and the lateral block is directly worn with the side frame. During the operation, the side frame and the bearing saddle are welded and repaired according to the wear amount of the bearing saddle and the side frame, which not only increases the maintenance amount of the side frame and the bearing saddle At the same time, since the side frame and bearing saddle are important bearing steel castings, direct welding and repairing will have a negative impact on the reliability of the parts. Further, the bearing saddle is a small and medium-sized precision casting workpiece. After welding and repairing, it will affect other matching parts. The size has a great influence, so it is often scrapped directly after the rib wears to the limit, resulting in greater waste

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