Sealing structure for bottom door of hopper wagon

Abstract

The invention belongs to the technical field of parts for railway freight wagons, in particular to a sealing structure for a bottom door of a hopper wagon, which solves the problems that the bottom door of the conventional railway freight wagon cannot meet requirements of sealing and safe transportation of materials with larger stack density and smaller particles. In the sealing structure, the lower end of a middle hopper plate of the hopper wagon is beveled downwards; the upper end of a flow ballast plate is beveled upwards; the beveled angles of the middle hopper plate and the flow ballast plate are welded together in a staggered manner; a box-shaped structure is formed between the welded parts of the flow ballast plate and the middle hopper plate; the beveled angle of the middle hopper plate and a bottom door wrapping plate are sealed firstly; the flow ballast plate and the bottom door wrapping plate are tightly attached to be sealed secondarily; a labyrinth-type sealing structure between the bottom door and a hopper discharging opening is formed by first seal and second seal; and flow guide plates are arranged at all corners of the hopper discharging opening formed by a side hopper plate, a hopper partition plate, the middle hopper plate and the bottom door wrapping plate. The sealing structure for the bottom door of the hopper wagon has the advantages that: the sealing effect of the discharging opening is enhanced; safe transportation of cargoes such as iron ores with larger stack density and smaller particles can be realized; and the long-time use stability of vehicles can be improved.

Description

technical field [0001] The invention belongs to the technical field of components for railway wagons, and in particular relates to a sealing structure for a bottom door of a hopper car. Background technique [0002] The domestic railway freight car hopper car series mainly includes hopper cars for loading grain, ore, coal, ballast and cement. The grain and cement hopper truck adopts the central hopper unloading method, and the sealing method of the funnel mouth is a flat blocking plate structure, and the blocking plate and the funnel mouth are sealed by rubber pads. The number of hopper trucks using this sealing method is small, and the cement hopper trucks are also difficult to unload due to cement hardening and other problems, so they are gradually replaced by cement tank trucks that are unloaded by wind. The main hopper cars for bulk bulk cargo transportation in my country are ore, coal, and ballast hopper cars. The applicants designed K13 ballast hopper cars, K18 coal h...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a sealing structure for the bottom door of the funnel car in order to solve the problem that the bottom door of the funnel car of the existing railway freight car cannot meet the sealing and safe transportation of materials with a large bulk density and small particles

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