Ballast Stripping Machine Same-End Material Handling
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Solution Overview
Problem
Current railway maintenance technologies face limitations in efficiently renewing ballast and sleepers simultaneously due to train length constraints, leading to reduced daily output and incomplete track restoration, with existing strippers unable to precisely manage material flows and often mixing treated and new ballast, resulting in suboptimal track reinstatement.
Innovation Solution
A ballast stripper capable of excavating used ballast and receiving new ballast through the same end, allowing for simultaneous discharge and receipt of materials, and a 'constant mass train' configuration where wagons carry new ballast on one journey and non-reusable ballast on the return, optimizing material distribution and reducing train length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional strippers discharge used ballast and receive new ballast through opposite ends, then material flow management is simplified, but train length increases and operational efficiency decreases
Solution Approach 1:
The patent merges the discharge and receipt operations at the same end of the stripper, combining two separate material flow operations into a single location. This allows the aggregate wagons to serve dual purposes - delivering new ballast and receiving used ballast - thereby reducing train length and improving operational efficiency while maintaining manageable flow complexity through the same-end configuration
2Device complexity
If separate trains are used for excavating used ballast and reloading with new ballast, then material flow management is simplified, but track availability time decreases and productivity lowers
Solution Approach 1:
The patent combines the excavation and reloading operations into a single integrated stripper unit that handles both used ballast discharge and new ballast receipt simultaneously at the same end. This eliminates the need for separate trains operating at different times, thereby maximizing track availability and increasing daily renewal yield while keeping the train configuration manageable through unified operation
3Ease of operation
If new ballast and treated ballast are mixed during discharge, then discharge operation is simplified, but ballast profile restoration quality deteriorates
Solution Approach 1:
The patent segments the discharge operation into two distinct phases: first discharging new ballast to form the base layer, then discharging treated ballast on top. This segmentation ensures proper ballast profile restoration with new ballast at the bottom and treated ballast above, maintaining restoration quality while keeping each discharge phase simple and manageable
Data Source
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AI summary
The invention relates to a ballast clearing machine (302) that can remove worn ballast from a railway track and reload new ballast onto said track, said ballast clearing machine comprising a first and a second end, comprising means for removing all or part of the worn ballast and receiving new ballast on the same end. The invention also relates to a ballast renewing train comprising at least one ballast clearing machine (302) that can be coupled by just one of its ends, especially the rear end, to a set (301) of carriages for transporting granular material. The invention further relates to a method for renewing ballast of a portion of a railway track, using the same machine for removing the ballast and unloading ballast onto said portion of railway track.