Railway wagon side bearing dust guard

By designing dustproof devices on the side bearings of railway freight cars, and utilizing adjustable wire rope locks and variable cross-section corrugated structures, the problem of side bearing wear in desert environments has been solved, achieving dustproof effects and ensuring driving safety.

CN117485392BActive Publication Date: 2026-05-26CRRC YANGTZE CO LTD +1
1 Cites 0 Cited by

Patent Information

Application Number
CN202311526117.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-14
Publication Date
2026-05-26
Estimated Expiration
2043-11-14

AI Technical Summary

Technical Problem

When railway freight cars are running in the desert, sand particles carried by the wind accumulate on the contact surfaces of the upper and lower side bearings of the vehicles, causing wear and failure of the side bearings and endangering driving safety. Current technology does not have a dustproof design.

Method used

Design a dustproof device for the side bearings of railway freight cars, comprising upper and lower side bearings and a dust cover. Utilizing adjustable wire rope locks and a variable cross-section expandable corrugated structure, it achieves sealing and wind and sand resistance, preventing wind and sand from entering the internal components and adapting to high temperature, severe cold and high ultraviolet radiation environments.

Benefits of technology

It effectively avoids the wear and corrosion of the internal components of the upper and lower side bearing structures by wind and sand, ensuring that the device works normally in harsh environments and improving the safety and reliability of railway freight cars.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention discloses a dust-proof device for the side bearings of railway freight cars. The device includes: an adjusting shim and a wear plate at the lower end of the upper side bearing body assembly, and an upper mounting seat is clamped between the adjusting shim and the wear plate; a lower mounting seat having the same shape as the bottom end face of the lower side bearing body assembly is movably installed between the lower side bearing body assembly and the bolster; a dust-proof cover is connected between the upper mounting seat and the lower mounting seat, and the upper interface of the dust-proof cover is clamped in the slot of the upper mounting seat, and the lower interface is clamped in the slot of the lower mounting seat; the dust-proof cover has a variable cross-section structure from top to bottom, and a variable cross-section telescopic corrugated structure is provided in the middle and lower parts of the dust-proof cover; when vertical or longitudinal displacement occurs between the upper side bearing body assembly and the lower side bearing body assembly, the telescopic corrugated structure can shrink or expand with the deformation. The dust-proof device of the present invention has no sand and dust entering inside, and can avoid the wear and corrosion of the internal components of the upper and lower side bearing structures caused by sand and dust to the greatest extent.
Need to check novelty before this filing date? Find Prior Art