| 摘要 |
PURPOSE: A joint part supporting structure of railroad car truck is provided to prevent the abrasion a supporting pin structure, the increase of a joint clearance of the supporting pin structure and the deterioration of a riding comfort. CONSTITUTION: A joint part supporting structure of railroad car truck comprises an upper supporting part(1) having two fixed brackets(15), a rotation panel and a bar assembly and a lower supporting part(2) having a lower cap, a middle cap, an upper fixed wedge and pin type bolts. The two fixed brackets(15) fix the upper supporting part(1) by being welded to a frame(F) of a joint part. The rotation panel connected to the fixed brackets(15) by bolts mounts thereon a resilient joint elastically allowing a pitching movement occurring by the slope or the dynamic characteristics of a car. The bar assembly connects the rotating panel to both chassis and can be controlled the length thereof. The lower cap mounted between the upper portion of a bolster and the joint part is concave at the middle portion thereof. The middle cap attached between the concave portion and the lower portion of a frame(F) of the joint part is passed through circularly at the middle portion thereof. The upper fixed wedge and pin type bolts fixes the middle cap and the lower cap. |
